Similar Revision Rates Research Articles

Revision rates of one new and two established hemiarthroplasty heads: a comparative cohort study from the Swedish Arthroplasty Register

Introduction: The anatomical Lubinus SPII-stem is commonly used in hemi-arthroplasty for femoral neck fractures (FNF), combined with either the bipolar Variocup, the Unipolar Head (UH) and a newly introduced unipolar Modular Trauma Head (MTH). Similar constructs like the MTH are reported to have risk of corrosion and wear. This is the first publication evaluating the MTH. Aim: To describe the revision rate of the SPII-stems/heads which were divided into 3 groups (Variocup, UH, MTH). The head types are compared by their rate of revision at 2 years, due to any cause and to dislocation. Revision and mortality rates up to 10 years are reported. Methods: This observational cohort study based on prospectively registered data from the Swedish Arthroplasty Register included 33,059 patients with hemiarthroplasty 2005–2021 due to FNF. SPII-stems combined with Variocup ( n = 7,281), UH ( n = 23,980), MTH ( n = 1,798) were included. The follow-up ended at 10 years for Variocup and UH, for MTH at 2 years. Kaplan-Meier survival analyses was used, with a 95% confidence interval (CI). Patients were censored at death or at the end of the study (31 December 2021). Results: The 2-year revision rate regardless of cause was similar between the groups: after Variocup 3.5% (CI, 3.1–4.0), UH 3.1% (CI, 2.9–3.4), MTH 3.5% (CI, 2.6–4.5). At 10 years, the Variocup and UH had similar revision rates; 4.6% (CI, 4.0–5.2) and 5.0% (CI, 4.4–5.6). For revision due to dislocation at 2 years Variocup 2.3% (CI, 1.9–2.7) had an inferior outcome compared to UH 1.5% (CI, 1.3–1.7). The MTH had an intermediate outcome, 1.7% (CI, 1.0–2.3). Variocup had a higher dislocation related revision rate, until the 10th year. The 2-year-mortality was 36% (CI, 35–37) after Variocup, 43% (CI, 42–43) after UH and 44% (CI, 41–47) after MTH. Conclusions: The hemi-heads have comparable revision rates within 2 and 10 years. The new MTH performs similar to the standard UH. The bipolar Variocup is associated with more revisions due to dislocation.

Medial Stabilised Total Knee Arthroplasty: Definition and Performance

Background Medial-stabilised total knee arthroplasty (MS-TKA) usage has increased significantly over the past decade with encouraging results. MS-TKA mimics the natural knee kinematics, providing superior antero-posterior stability as compared to cruciate-retaining or posterior-stabilised designs. Its proponents suggest that MS-TKA may provide the solution to the residual dissatisfaction seen in many patients following knee replacement surgery. Methods The literature was reviewed for critical analysis of the evidence for the biomechanics of the native knee and the clinical outcomes for MS-TKA. The history of the development of the medial-stabilised knee was also reviewed. Results MS-TKA were found generally to have similar revision rates to non-MS-TKA. Studies of knee function found either similar or improved function, which may be due to increased AP stability and a lack of paradoxical movement of femur over tibia which is seen in CR and PS designs. Conclusion This review highlights the key design features needed for a total knee arthroplasty to be termed as a medial-stabilised design, summarises current clinical and kinematic evidence including an overview of its development over the past three decades and sets out the next steps needed for meaningful evaluation of long-term real-world data of individual MS-TKA implants. With longer and more detailed follow-up data emerging as MS-TKA becomes more popular, a more thorough analysis of their performance will soon be possible.

Collared versus collarless hydroxyapatite-coated stems for primary cementless total hip arthroplasty; a systematic review of comparative studies. Is there any difference in survival, functional, and radiographic outcomes?

This systematic review aims to critically assess the literature comparative studies investigating collared and collarless Corail stem in primary total hip arthroplasty (THA) to find differences in revision rates, radiographic and clinical outcomes, and postoperative complications between these two types of the same stem. Eligible studies were found by searching PubMed, Science Direct/Scopus, and the Cochrane Database of Systematic Reviews from conception till May 2023. The PRISMA guidelines were followed. The investigation encompassed randomized controlled trials, case series, comparative, cohort, and observational studies that assessed at least one comparative outcome or complication between collared and collarless Corail stems. Twelve comparative studies with 90,626 patients undergoing primary THA were included. There were 40,441 collared and 58,543 collarless stems. The follow-up ranged from 12 to 360 months. Our study demonstrated no significant difference in stem revision relative risk (RR=0.68; 95% confidence interval (CI), 0.23, 2.02; p=0.49), number of radiolucent lines (RR=0.3; 95% CI, 0.06, 2.28; p=0.29) and overall complication risk (RR=0.62; 95% CI, 0.22, 1.76; p=0.37) between collared and collarless stems. The collared stems demonstrated significantly lesser subsidence (mean difference: 1.01mm; 95% CI, -1.77, -0.25; p=0.009) and risk of periprosthetic fractures (RR=0.52; 95% CI, 0.29, 0.92; p=0.03). The comparative studies between collared and collarless stem groups showed similar survival and overall complication rates and functional outcomes. The similar revision rates between groups make the impact of higher subsidence for collarless stems uncertain. The lower risk of periprosthetic fractures in the collared stems group must be clarified further but could be related to increased rotational stability.

Moderate sagittal plane deformity patients have similar radiographic and functional outcomes with either anterior or posterior surgery.

This study aimed to compare the functional and radiographic outcomes of two surgical interventions for adult spinal deformity (ASD): anterior lumbar interbody fusion with anterior column realignment (ALIF-ACR) and posterior approach using Smith-Peterson osteotomy with transforaminal lumbar interbody fusion and pedicle screw fixation (TLIF-Schwab2). A retrospective cohort study included 61 ASD patients treated surgically between 2019 and 2020 at a single tertiary orthopedic specialty hospital. Patients were divided into two groups: Group 1 (ALIF-ACR, 29 patients) and Group 2 (TLIF-Schwab2, 32 patients). Spinopelvic radiographic parameters and functional outcomes were evaluated at 3, 6, and 12months postsurgery. Perioperative outcomes favored the ALIF-ACR group, with significantly smaller blood loss, shorter hospital stay, and operative time. Radiographic and functional outcomes were similar for both groups; however, the ALIF-ACR group did have a greater degree of correction in lumbar lordosis at 12months. Complication profiles varied, with the ALIF-ACR group experiencing mostly hardware-related complications, while the TLIF-Schwab2 group faced dural tears, wound dehiscence, and proximal junctional kyphosis. Both groups had similar revision rates. Both ALIF-ACR and TLIF-Schwab2 achieved similar radiographic and functional outcomes in ASD patients with moderate sagittal plane deformity at 1-year follow-up. However, the safety profiles of the two techniques differed. Further research is required to optimize patient selection for each surgical approach, aiming to minimize perioperative complications and reoperation rates in this challenging patient population.

NAVIO RATKA shows similar rates of hemoglobin-drop, adverse events, readmission and early revision vs conventional TKA: a single centre retrospective cohort study.

Despite widespread adoption of NAVIO robotic-assisted total knee arthroplasty (NAVIO RATKA) in clinical practice, clinical outcome in terms of adverse events and complications remains unclear. The purpose of this study was to compare adverse events, length of stay, surgical time, hemoglobin drop, early readmission rate and revision rate between conventional TKA (CTKA) and NAVIO RATKA. This single-centre retrospective cohort analysis compared 230 NAVIO RATKA patients to 489 CTKA patients with a minimal follow-up of 12 months. Baseline demographic and comorbidity parameters were collected, as well as length of stay, revision rate and reason for revision, early readmission rate (< 6w) and reason for readmission, post-operative hemoglobin levels, adverse events, surgical time and operating room time. Data were compared using Mann-Whitney U test for continuous data without normal distribution and ordinal data, categorical variables were compared using the Chi-square or Fisher exact test. There were no clinically relevant baseline demographic or comorbidity differences between groups. CTKA had shorter length of stay than NAVIO RATKA (5.0 days vs 5.4 days, p = 0.010) but trended towards a higher reoperation rate (4.1% vs 1.7%, p = .144, n.s). No differences were found in hemoglobin drop, readmission rate or overall incidence of adverse events, but CTKA showed more hematoma formation (1.6% vs 0%, p = .044) and higher incidence of periprosthetic joint infection (PJI) (1% vs 0%, p = n.s.), whilst NAVIO RATKA showed more periprosthetic fractures and persistent wound drainage (0.4% vs 2.2%, p = .038 and 0.6% vs 4.3%, p = .001, respectively). Surgical time remained significantly longer in NAVIO RATKA during all 230 cases (87 min vs 67.6 min) and showed a continuous downward trend. This study further validates the usage of NAVIO RATKA as a safe method to perform TKA, with comparable short term outcomes to CTKA in terms of early revisions and adverse events. Surgeons should be mindful of the differing adverse event profile in NAVIO RATKA and adjust their patient selection accordingly to ensure optimal outcomes. In addition, surgeons using NAVIO RATKA should expect a linear learning curve and a surgical time exceeding that of CTKA. Level III (therapeutic retrospective cohort study).

LONG-TERM SURVIVAL RATES ARE SIMILAR WITH OR WITHOUT PATELLAR RESURFACING AFTER TOTAL KNEE ARTHROPLASTY, HOWEVER, HIGHER REVISION RATE WITHOUT PATELLAR RESURFACING CAN BE PROSTHETIC-SPECIFIC: A NATIONAL JOINT REGISTRY ANALYSIS

AbstractIntroductionThe role of patellar resurfacing in total knee arthroplasty remains controversial. We questioned the effect of patellar resurfacing on the early and late revision rates after total knee arthroplasty.Materials and MethodsWe analysed the data of cumulative revisions of primary knee replacement from the NJR 19th Annual Report. NJR included secondary patellar resurfacing as a revision. We compared differences in the 3-year and 15-year revision rates between the patellar resurfacing and non-resurfacing for the different combinations of total knee replacements using a paired t-test. We performed subgroup analysis for the five combinations with the highest volumes.ResultsTwenty-seven implant combinations had the 15-year revision rates reported. Patellar resurfacing group had lower mean 3-year revision rate of 1.68 (SD 0.7) compared to 2.02 (SD 0.9) in non-resurfacing group (p=0.05). However, 15-year revision rate was similar between the two groups (mean 5.7, SD 2.1 vs. mean 5.7, SD 2.2; p = 0.46).High volume implants showed that two combinations (NexGen CR and PS) had similar revision rates at 3 and 15 years between resurfacing and non-resurfacing groups. Three combinations (PFC Sigma CR and PS and Genesis 2 CR) had higher revision rate in non-resurfacing group at 3 years (p=0.01) and the difference persisted at 15 years (p=0.05).ConclusionsAlthough revision rate in total knee arthroplasty was higher without patellar resurfacing at 3 years, at 15 years the difference was not significant. However, the higher revision without patellar resurfacing can be prosthetic combination specific which surgeons need to be aware of.

High-Level Competitive Athletes Who Undergo Hip Arthroscopy Demonstrate Durable 5-Year Outcomes and Lower Subjective Pain: A Propensity-Matched Analysis.

Hip arthroscopy (HA) has been proven to be an effective treatment for femoroacetabular impingement syndrome (FAIS) in both competitive athletes (CA) and non-CA at short-term follow-up. However, there is a paucity of literature investigating midterm outcomes comparing athletes with Controls. Athletes would have significant improvements at 5 years, with favorable outcomes compared with their control counterparts, and high return-to-sport (RTS) rate. Propensity-matched retrospective comparative cohort study. Level 3. CAs who underwent primary HA for FAIS from January 1, 2012 to April 30, 2017 were identified and propensity matched on a 1:4 basis to Controls by age, sex, and body mass index (BMI). Patient-reported outcomes (PROs) were collected preoperatively and at 5 years. Minimal clinically important differences (MCID) and patient acceptable symptom states (PASS) rates were calculated using previously published thresholds. Rate and duration of RTS were collected retrospectively. A total of 57 high-level CA (33 female, 24 male; age, 21.7 ± 4.2 years; BMI, 23.1 ± 2.8 kg/m2) were propensity matched to 228 Controls (132 female, 96 male; P > 0.99; age, 23.3 ± 5.8 years; P = 0.02; BMI, 23.8 ± 4.3 kg/m2, P = 0.24). Significant differences were observed in preoperative Hip Outcome Score Sports Specific and Activities of Daily Living (HOS-ADL) subscales (CA, 74.9 ± 13.7 vs Controls, 66.4 ± 18.4; P = 0.01) and modified Harris Hip Score (mHHS) (CA, 64.7 ± 12.9 vs Controls, 59.7 ± 14.3; P = 0.04). Both groups demonstrated significant postoperative improvements in all outcome scores measured (P ≤ 0.01). At 5 years postoperatively, there were significant differences between groups in Visual Analog Scale (VAS) Pain (CA, 17.3 ± 17.6 vs Controls, 24.7 ± 25.9; P = 0.02). There were no significant differences in achieving MCID or PASS. Athletes RTS at a median of 25.2 weeks (Q1 22.4-Q3 30.7) with an overall RTS rate of 90%. Similar rates of revision were seen between CA patients (n = 3; 5.3%) and Control patients (n = 9; 3.9%) (P = 0.66). CAs demonstrated significant and durable improvements in PROs as well as high MCID and PASS achievement rates after primary HA, which were comparable with those of Controls. Clinicians should be aware that CA patients demonstrate higher preoperative mHHS and HOS-ADL scores than Controls and achieve lower average self-reported pain at 5 years postoperatively. In addition, CA patients demonstrate high rates of RTS at a median of 25 weeks postoperatively. This study provides insight into CA versus Control PROs and rates of achieving MCID and PASS at a midterm follow-up of 5 years. Furthermore, this study offers perception into RTS rate, both in general as well as specified to individualized sports.

Similar revision rate after cemented and cementless femoral revisions for periprosthetic femoral fractures in total hip arthroplasty: analysis of 1,879 revision hip arthroplasties in the Dutch Arthroplasty Register

Periprosthetic femoral fracture (PPF) after total hip arthroplasty (THA) is a serious complication, as it often is followed by functional deficits and morbidity. There is no consensus regarding the optimal stem fixation method and whether additional cup replacement is beneficial. The aim of our study was to perform a direct comparison of reasons and risk of re-revision between cemented and uncemented revision THAs following PPF using registry data. 1,879 patients registered in the Dutch Arthroplasty Registry (LROI) who underwent a first-time revision for PPF between 2007 and 2021 (cemented stem: n = 555; uncemented stem: n = 1,324) were included. Competing risk survival analysis and multivariable Cox proportional hazard analyses were performed. 5- and 10-year crude cumulative incidence of re-revision following revision for PPF was similar between cemented (resp. 13%, 95% CI 10-16 and 18%, CI 13-24) and uncemented (resp. 11%, CI 10-13 and 13%, CI 11-16) revisions. Multivariable Cox regression analysis, adjusting for potential confounders, showed a similar risk of revision for uncemented and cemented revision stems. Finally, we found no difference in risk of re-revision between a total revision (HR 1.2, 0.6-2.1) compared with a stem revision. We found no difference in the risk of re-revision between cemented and uncemented revision stems after revision for PPF.

(489) Comparison of Penile Prostheses Outcomes in Veterans with Peyronie’s Disease: A Single-Center Analysis

Abstract Introduction Peyronie’s disease (PD) causes erectile dysfunction (ED) in at least 40% of cases. ED refractory to medical and injection therapy can be treated with implantable penile prosthesis, which may also address the penile deformities. However, prosthesis surgery has significant associated morbidity-including erosive disease and infection-and frequently requires explant or revision. Data for Veterans Affairs (VA) patients with PD is limited, especially with respect to penile prosthesis placement. More information is needed for proper counseling and perioperative planning in this high-risk population. Objective The aim of this study is to compare outcomes and revision rates in Veteran patients with and without PD after primary penile prosthesis implantation. Methods A retrospective cohort study of the xxx VA Medical Center Informatics and Computing Infrastructure database was performed. Veterans who underwent penile prosthesis surgery between January 2013 and February 2022 were identified and included in the study. Patient factors including age, race, procedure type, and relevant comorbidities were collected. Patients with and without history of PD were identified and separated into two cohorts and patient factors of these two groups were compared using chi-square and Fisher’s exact tests. Freedom from revision was analyzed using Cox regression and hazard ratios. Results A total of 229 patients underwent penile prosthesis placement with at least 4 months follow-up. 24 patients (10.48%) with history of PD were identified. The mean age at prosthesis placement of PD patients was younger than that of non-PD patients (61.3 vs 65.0 respectively, p=0.0358). Rear tip extender length was longer in the PD cohort than the non-PD cohort (3.02 cm vs 2.32 cm respectively, p=0.0313). Operative time was shorter in patients with PD than in patients without PD (91 minutes vs 111 minutes respectively, p=0.0409). Prosthesis type, hospital stay, and post-operative complication rates were not significantly different between groups. PD was not associated with significantly increased risk of prosthesis revision or removal (p&amp;gt;0.05). No patients in the PD cohort experienced infection or erosion; two explants were performed for component migration and supersonic transporter deformity respectively. Conclusions Veterans with PD undergoing prosthesis placement have similar revision rates and explant rates as compared to veterans without PD. Additionally, penile prosthesis implantation for men with PD is associated with low morbidity and similar complication rates compared to men without PD undergoing prosthesis placement for erectile dysfunction. Disclosure No

Graft subsidence and reoperation after lateral lumbar interbody fusion: a propensity score-matched and cost analysis of polyetheretherketone versus 3D-printed porous titanium interbodies.

Lumbar interbody cage subsidence has a multifactorial etiology. Cage material, although well studied after transforaminal lumbar interbody fusion, has not been investigated as a contributing factor to subsidence after lateral lumbar interbody fusion (LLIF). In this study the authors compared rates of subsidence and reoperation after LLIF between polyetheretherketone (PEEK) and 3D-printed porous titanium (pTi) in an institutional propensity score-matched and cost analysis. This is a retrospective observational cohort analysis of adult patients who underwent LLIF with pTi versus PEEK between 2016 and 2020. Demographic, clinical, and radiographic characteristics were collected. Propensity scores were calculated and 1:1 matching without replacement of surgically treated levels was performed. The primary outcome of interest was subsidence. The Marchi subsidence grade was determined at the time of last follow-up. Chi-square or Fisher's exact tests were used to compare subsidence and reoperation rates between lumbar levels treated with PEEK versus pTi. Modeling and cost analysis were performed using TreeAge Pro Healthcare. The authors identified a total of 192 patients; 137 underwent LLIF with PEEK (212 levels) and 55 had LLIF with pTi (97 levels). After propensity score matching, a total of 97 lumbar levels remained in each treatment group. After matching, there were no statistically significant differences between groups in baseline characteristics. Levels treated with pTi were significantly less likely to exhibit subsidence (any grade) compared to those treated with PEEK (8% vs 27%, p = 0.001). Five (5.2%) levels treated with PEEK required reoperation for subsidence, but only 1 (1.0%) level treated with pTi required reoperation for subsidence (p = 0.12). Given subsidence and revision rates experienced in the cohorts in this study, the pTi interbody device is economically superior to PEEK in a single-level LLIF as long as its cost is at least $1185.94 lower than that of PEEK. The pTi interbody device was associated with less subsidence, but statistically similar revision rates after LLIF. pTi is potentially a superior economic choice at this study's reported revision rate.

Total Hip Arthroplasty or Hemiarthroplasty for Displaced Femoral Neck Fractures?: Commentary on an article by Mina Tohidi, MD, FRCS(C), PhD, et al.: "Comparative Effectiveness of Total Hip Arthroplasty and Hemiarthroplasty for Femoral Neck Fracture. A Propensity-Score-Matched Cohort Study".

Commentary This Canadian study involves a subject of continued controversy1,2. It describes the outcomes of a large matched group of patients ≥60 years old with a displaced femoral neck fracture treated with total hip arthroplasty (THA) or hemiarthroplasty (HA). The 2 groups had similar revision and readmission rates, but those treated with THA had higher dislocation rates. Patients treated with HA had higher mortality rates, but they tended to be older and had higher rates of dementia and institutionalization. These findings are not new or unexpected, so what are surgeons to take away from this study? The major strength of this study is the use of a well-matched cohort with a large sample size (9,224). Most previous studies involved far fewer patients or performed meta-analyses of such studies3. Its major weakness is that surgeon and technical factors could not be taken into account. Who performs the surgery and how it is done are very important but were not captured in the data. In clinical practice, a femoral neck fracture is a devastating but common injury. Treatment should be based on shared decision-making involving the surgeon and the patient, family, or individual who has the power of attorney. These other individuals will ultimately rely heavily on the surgeon’s recommendations. The surgeon should clearly explain why a particular treatment is being recommended, along with the specific risks and benefits involved with each treatment. There are also many confounding factors that can influence the surgeon’s recommendation. These can include surgeon experience and comfort with the procedure, as well as institutional support for performing it at less than convenient hours (holidays, weekends). Age, comorbidities, anticipated life expectancy, approach, femoral component head size, use of a dual-mobility construct, bone quality, and use of cement all need to be taken into account. An institutionalized patient with Parkinson disease will be treated very differently from an active 70-year-old who lives at home. Some studies have not found significant differences between these 2 treatments, or have questioned the clinical importance of better quality-of-life scores after THA than after HA4. However, the pendulum is clearly swinging toward the use of THA for this injury5,6. This study provides further evidence that THA is a reasonable treatment for many displaced femoral neck fractures, but reinforces the need to consider factors that will reduce dislocation rates.

Supplemental oxygen is associated with increased complications and readmission following total shoulder arthroplasty

BackgroundChronic lung disease has a significant burden on surgical patients and in some instances can be so advanced that patients are dependent on home supplemental oxygen. Prior literature has shown that lower extremity total joint arthroplasty patients who are oxygen-dependent exhibit significantly increased rates of postoperative complications and readmission. However, there is a paucity of literature evaluating outcomes following total shoulder arthroplasty (TSA) in oxygen-dependent patients. The purpose of this study is to compare the rates of complications, readmission, revision, and mortality within 180 days of primary elective TSA in oxygen-dependent vs. oxygen-independent patients with comorbid chronic pulmonary disease. MethodsThe Nationwide Readmissions Database was queried from 2015 to 2019 to identify all patients that underwent primary elective TSA with comorbid chronic lung disease (n = 19,469). Patients were stratified into oxygen-dependent (n = 622) and oxygen-independent (n = 18,847) groups. Relevant demographic characteristics and postoperative complications were compared between the oxygen-dependent and oxygen-independent groups. One hundred eighty-day postoperative complication, readmission, revision, and mortality rates were also compared between the two groups. ResultsOxygen dependent patients were significantly more likely to have preoperative hypertension (81% vs. 74%; P < .001), congestive heart failure (20% vs. 7.2%; P < .001), chronic kidney disease (13% vs. 10%; P = .009), and increased Charlson-Deyo comorbidity index (2.4 vs. 2.0; P < .001). Oxygen-dependent patients exhibited higher rates of wound dehiscence (0.2% vs. 0.0%; P = .003), cardiovascular complications (0.6% vs. 0.2%; P = .014), acute renal failure (5.5% vs. 1.9%; P < .001), urinary tract infection (1.9% vs. 1.0%; P = .019), pneumonia (1.6% vs. 0.6%; P = .001), and acute respiratory distress syndrome (6.9% vs. 1.5%; P < .001). Oxygen-dependent patients exhibited higher rates of complications (16% vs. 7.1%; P < .001) and readmission (20% vs. 12%; P < .001) within 180 days of surgery, but no significant differences were observed in 180-day revision or mortality rates between groups. ConclusionOxygen-dependent TSA patients have higher 180-day complication and readmission rates while having similar revision and mortality rates as oxygen-independent patients. These findings should be considered by orthopedic surgeons when considering strategies for perioperative management of oxygen-dependent patients following TSA.

Comparison of temporal-to-frontal horn shunt and ventriculo-peritoneal shunt for treatment of trapped temporal horn: a retrospective cohort study.

As a localized hydrocephalus, trapped temporal horn (TTH) can be effectively resolved via cerebrospinal fluid shunting. In addition to conventional ventriculo-peritoneal shunt (VPS), temporal-to-frontal horn shunt (TFHS) has been described as a less complex and invasive procedure with promising results; however, there is limited data comparing VPS to TFHS regarding patient outcomes. This study aims to compare TFHS versus VPS for treatment of TTH. We conducted a comparative cohort study with patients undergoing TFHS or VPS for TTH after surgery of trigonal or peritrigonal tumors between 2012 and 2021. The primary outcome was revision rates at 30-day, 6-month, and 1-year. Secondary outcomes included operative duration, postoperative pain, hospital stay, overdrainage, and cost for shunt placement and revision. A total of 24 patients included, with 13 (54.2%) patients receiving TFHS and 11 (45.8%) receiving VPS. Both cohorts shared similar baseline characteristics. There were no significant differences between TFHS and VPS in 30-day (7.7% vs 9.1%, p > 0.99), 6-month (7.7% vs 18.2%, p = 0.576), or 1-year (8.3% vs 18.2%, p = 0.590) revision rates. There were no significant differences in terms of operative duration (93.5 ± 24.1 vs 90.5 ± 29.6min, p = 0.744), surgical site pain (0 vs 18.2%, p = 0.199), or postoperative length of stay (4.8 ± 2.6 vs 6.9 ± 4.0days, p = 0.157) between the two groups. For the TFHS cohort, no patient experienced shunt related overdrainage, and there was a trend towards fewer overdrainage (0% vs 27.3%, p = 0.082) compared with VPS. TFHS offered significant reduction in cost for initial shunt (¥20,417 vs ¥33,314, p = 0.030) and total costs for shunt and revision (¥21,602 vs ¥43,196, p = 0.006) compared to VPS. As a technique of valveless shunt and without abdominal incision, TFHS is cosmetic, cost-effective, and completely free of overdrainage with similar revision rates as compared with VPS.

International primary hip arthroplasty registry review: findings from current reports.

We present key information from international registries in relation to primary total hip arthroplasty. The specific questions of interest include which bearings are superior in total hip arthroplasty (THA), which fixation types are optimal, do any specific implants perform better than others, and what is the latest update in the hip fracture setting?This is a comprehensive review of the major English-speaking hip arthroplasty registries across the globe. Key trends and developments in implant performance are identified and presented in the current article.Key points from review of all registries confirm that ceramic-on-polyethylene and metal-on-polyethylene continue to be the commonest bearings. The use of cemented femoral stems is increasing across most regions. Hybrid fixation is now the commonest fixation method in the UK for the first time in registry history. Uncemented femoral stems have a higher early revision rate for periprosthetic fracture than cemented stems across most regions. Dual mobility (DM) bearings are increasing in use and show higher early revision rates than unipolar bearings-they tend to be used for more complex indications (fracture/tumor/revision) and show similar revision rates to unipolar bearings when used exclusively in primary elective THA for osteoarthritis.We present current trends in THA based on current registry data from across the globe. Clinical signals of concern are emerging for THA uncemented femoral stem fixation and DM bearings in specific clinical contexts. These signals should be monitored across the literature in order to reduce the overall revision burden.

PATIENT-REPORTED OUTCOMES AND REVISION RATES AFTER PRIMARY ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION WITHOUT CONCOMITANT KNEE INJURY: A COMPARISON OF QUADRICEPS, HAMSTRING, AND BONE-PATELLA-TENDON-BONE AUTOGRAFTS WITH MINIMUM TWO-YEAR FOLLOW-UP

Most previous studies investigating autograft options (quadriceps, hamstring, bone-patella-tendon-bone) in primary anterior cruciate ligament (ACL) reconstruction are confounded by concomitant knee injuries. This study aims to investigate the differences in patient reported outcome measures and revision rates for quadriceps tendon in comparison with hamstring tendon and bone-patella-tendon-bone autografts. We use a cohort of patients who have had primary ACL reconstruction without concomitant knee injuries.All patients from the New Zealand ACL Registry who underwent a primary arthroscopic ACL reconstruction with minimum 2 year follow-up were considered for the study. Patients who had associated ipsilateral knee injuries, previous knee surgery, or open procedures were excluded. The primary outcome was Knee Injury and Osteoarthritis Outcome Score (KOOS) and MARX scores at 2 years post-surgery. Secondary outcomes were all-cause revision and time to revision with a total follow-up period of 8 years (time since inception of the registry).2581 patients were included in the study; 1917 hamstring tendon, 557 bone-patella-tendon-bone, and 107 quadriceps tendon. At 2 years, no significant difference in MARX scores were found between the three groups (2y mean score; 7.36 hamstring, 7.85 bone-patella-tendon-bone, 8.05 quadriceps, P = 0.195). Further, no significant difference in KOOS scores were found between the three groups; with the exception of hamstring performing better than bone-patella-tendon-bone in the KOOS sports and recreation sub-score (2y mean score; 79.2 hamstring, 73.9 bone-patella-tendon-bone, P &lt; 0.001). Similar revision rates were reported between all autograft groups (mean revision rate per 100 component years; 1.05 hamstring, 0.80 bone-patella-tendon-bone, 1.68 quadriceps, P = 0.083). Autograft revision rates were independent of age and gender variables.Quadriceps tendon is a comparable autograft choice to the status quo for primary ACL reconstruction without concomitant knee injury. Further research is required to quantify the long-term outcomes for quadriceps tendon use.

A systematic review and meta-analysis on the outcomes of type I thyroplasty in the irradiated neck

BackgroundType I thyroplasty has been well-documented as a safe and effective treatment modality for vocal fold motion impairment, as well as other select cases of persistent glottic insufficiency. However, history of prior radiation to the neck has traditionally been viewed as a relative, if not formal contra-indication to this procedure. The objective of this systematic review was to analyze all available data in the literature on type I thyroplasty in previously irradiated patients and perform a meta-analysis assessing whether complications and revision rates are significantly different between radiated and non-irradiated patients. Secondary outcomes were to compare voice outcomes between these cohorts. MethodsSeveral databases were screened for relevant citations using the PICO process. The quality of studies and risk of bias were evaluated using the MINORS scoring system. Main endpoints for analysis in this study were complication rate and revision rate. Secondary endpoint was reported voice outcome. ResultsThree articles were included in the analysis. Zero major complications were reported, including no instances of implant extrusion or explantation. There was an 11.8 % rate of minor complications. There were similar rates of revision between radiation and control groups. There was no significant difference in voice outcomes between groups. The average MINORS score of the studies suggested a high risk of bias. ConclusionsBased on limited quality evidence, this review suggests that type I thyroplasty is safe and feasible in carefully selected irradiated patients, with comparable complication and success rates as their non-irradiated cohorts. Further large-scale studies are warranted.

Mid-term effect of total knee arthroplasty with and without tourniquet use on prosthesis survival, complications and functional outcome: A prospective cohort study of 511 total knee arthroplasties

BackgroundA tourniquet is often used to create a bloodless surgical field during total knee arthroplasty (TKA). It is still debated whether tourniquet use improves durability of cemented implant fixation and thereby prosthesis survival. Some studies showed tourniquet application has a negative impact on post-operative wound healing, pain and function, whilst other publications contradict this. However, no previous studies evaluated the effect of tourniquet use on prosthesis survival and mid-term functional outcome specifically. MethodsIn this longitudinal observational cohort study 115 patients (116 knees) undergoing TKA without tourniquet use were compared with 374 patients (395 knees) with a tourniquet. Prosthesis survival, revision risks and complications were analysed through chart review after ameanfollow-up period of5.3 years.Additionally, patient reported outcome measures regarding knee functionality and health status (PROMs; KOOS, OKS, EQ-5D, SF-12) werecollected prospectively. ResultsBoth groups had an equal overall re-operation rate of 4.3% and showed similar revision rates for aseptic loosening as well as for other causes. In the tourniquet group a higher complication rate (14.7% vs 10.3%) was observed. The majority was urinary retention requiring bladder catheterization. Both groups showed comparable, improved post-operative functional results compared to the pre-operative state for all PROMs atall timepoints. ConclusionsIn this study TKA without tourniquet use yielded similar mid-term results as TKA with tourniquet use with regard to prosthesis survival, reoperations, complications, knee functionality and health status.

Antibiotic Prophylaxis Is Not Necessary for Invasive Dental Procedures in Existing Total Knee Arthroplasty Implants.

Antibiotic prophylaxis before an invasive dental procedure (IDP) for patients with preexisting knee implants has been suggested, but its use has yet to reach consensus. Therefore, we sought to examine antibiotic prophylaxis before an IDP for patients who had undergone a total knee arthroplasty (TKA). We specifically assessed 90-day to 1-year (1) periprosthetic joint infection (PJI) and (2) revision. We queried a national, all-payer database for patients undergoing primary TKA between 2010 and 2020 (n=1,952,917). We identified IDP, as defined by any procedure that involves gingival manipulation, and stratified according to antibiotic prophylaxis. A control cohort of TKA recipients without subsequent IDP was then established. All 3 cohorts were matched according to demographic and health metrics (n=496). Chi-square testing generated the odds ratio (OR) with 95% CI for postoperative PJI and revision. The odds for PJI and revision at all time points were statistically similar between antibiotic prophylaxis and no antibiotic prophylaxis (PJI: OR, 0.62; 95% CI, 0.11-4.00; P≥.479; revision: OR, ≥0.33; 95% CI, 0.03-4.00; P≥.248). Additionally, both IDP cohorts and the control cohort had similar rates of postoperative PJI (P≥.367) and revision (P≥.173) at all time points. Antibiotic prophylaxis before an IDP for TKA recipients did not decrease the risk of PJI or revision up to 1 year after the index procedure. These results support the trend by dentists and orthopedic surgeons to refrain from antibiotic prophylaxis. However, it likely has utility in patients at high risk, as suggested by current guidelines. [Orthopedics. 2023;46(2):76-81.].

17. Seven-year outcomes of ACDF vs minimally invasive posterior cervical foraminotomy in the treatment of cervical radiculopathy

<h3>BACKGROUND CONTEXT</h3> Minimally invasive posterior cervical foraminotomy (MI-PCF) is a motion sparing technique that has been shown in several studies to be similarly effective as ACDF in treating cervical radiculopathy due to foraminal stenosis and other related degenerative pathologies. MI-PCF also has several advantages over ACDF as it is associated with fewer hardware complications, shortened hospital stay, reduced blood loss and cost. It has been hypothesized that preserving motion may reduce the risk of the development of adjacent segment disease (ASD) in MI-PCF vs ACDF. Recent studies have shown a similar revision rate between MI-PCF and ACDF at 2-year follow-up; however, long-term follow-up data comparing MI-PCF vs ACDF are scarce. <h3>PURPOSE</h3> The purpose of this study is to compare outcomes of MI-PCF and ACDF in the treatment of unilateral cervical radiculopathy over long-term (>7 years) follow-up. <h3>STUDY DESIGN/SETTING</h3> Retrospective comparative study. <h3>PATIENT SAMPLE</h3> A total of 177 consecutive patients at a single institution who underwent ACDF or MI-PCF between 2009-2013 with a minimum follow-up of 7 years. <h3>OUTCOME MEASURES</h3> (1) Patient demographics; (2) complication rate; (3) revision rate; (4) patient-reported outcome scores Neck Disability Index (NDI), Visual Analog Score for neck (VAS-n) and arm (VAS-a). <h3>METHODS</h3> A retrospective review was performed to identify all patients between 2009-2013 who underwent either ACDF or MI-PCF with a minimum follow-up of 7 years. Demographic data were recorded and compared between both cohorts. Revision rates and complication rates between ACDF and MI-PCF were also compared. Patient-reported outcome scores were assessed with NDI, VAS-n, and VAS-a measurements at follow-up visits. Standard binomial and categorical comparative analysis were performed. <h3>RESULTS</h3> A total of 177 consecutive patients were included–143 in the ACDF cohort and 34 in the MI-PCF cohort. There were 60 males and 83 females in the ACDF cohort compared to 29 males and 9 females in the MI-PCF cohort, a statistically significant difference (p <0.001). Mean follow-up of the ACDF and MI-PCF cohorts were 96.8 and 94.5 months, respectively. Complication rates were 4.9% and 2.9% for the ACDF and MI-PCF cohorts, respectively (p =1.0). The overall revision rates were 9.1% for the ACDF cohort and 11.8% for the MI-PCF cohort (p=0.745). All MI-PCF patients were revised to a fusion. Both cohorts experienced significant improvements in their functional outcome scores compared to their preoperative values; however, the magnitude of improvement was not statistically significant between the ACDF and MI-PCF cohorts. <h3>CONCLUSIONS</h3> MI-PCF is a safe and effective alternative to ACDF in the treatment of unilateral cervical radiculopathy without myelopathy, demonstrating benefit at a minimum of 7-year follow up. MI-PCF demonstrated similar improvements in functional outcome scores, without increased complication or revision rates. Further studies should consist of cost analysis to evaluate how utilizing MI-PCF would impact overall health care spending. <h3>FDA DEVICE/DRUG STATUS</h3> This abstract does not discuss or include any applicable devices or drugs.

A matched comparison of cementless unicompartmental and total knee replacement outcomes based on the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man.

Background and purposeThe main treatments for severe medial compartment knee arthritis are unicompartmental (UKR) and total knee replacement (TKR). UKRs have higher revision rates, particularly for aseptic loosening, therefore the cementless version was introduced. We compared the outcomes of matched cementless UKRs and TKRs.Patients and methodsThe National Joint Registry was linked to the English Hospital Episode Statistics and Patient Reported Outcome Measures (PROMs) databases. 10,552 cementless UKRs and 10,552 TKRs were propensity matched and regression analysis used to compare revision/reoperation risks. 6-month PROMs were compared. UKR results were stratified by surgeon caseload into low- (< 10 UKRs/year), medium- (10 to < 30 UKRs/year), and high-volume (≥ 30 UKRs/year).Results8-year cementless UKR revision survival for the 3 respective caseloads were 90% (95% CI 87–93), 93% (CI 91–95), and 96% (CI 94–97). 8-year reoperation survivals were 76% (CI 71–80), 81% (CI 78–85), and 84% (CI 82–86) respectively. For TKR the 8-year implant survivals for revision and reoperation were 96% (CI 95–97) and 81% (CI 80–83). The HRs for the 3 caseload groups compared with TKR for revision were 2.0 (CI 1.3–2.9), 2.0 (CI 1.6–2.7), and 1.0 (CI 0.8–1.3) and for reoperation were 1.2 (CI 1.0–1.4), 0.9 (CI 0.8–1.0), and 0.6 (CI 0.5–0.7). 6-month Oxford Knee Score (OKS) (39 vs. 37) and EQ-5D (0.80 vs. 0.77) were higher (p < 0.001) for the cementless UKR.InterpretationCementless UKRs have higher revision and reoperation rates than TKR for low-volume UKR surgeons, similar reoperation but higher revision rates for mid-volume surgeons, and lower reoperation and similar revision rates for high-volume surgeons. Cementless UKR also had better PROMs.