Knee Surgery Research Articles

La reparación aislada presenta mayor altura patelar postoperatoria según el índice de Insall-Salvati en comparación con la aumentación biológica en roturas agudas del tendón rotuliano

Background and objectivePatellar tendon ruptures (PTR) are rare but highly disabling injuries. Surgical treatment is the standard approach. Postoperative patellar height (PH) is used to determine the success of the intervention, with various indices described in the literature. The objective of the study was to determine if there are differences in PH according to the Insall-Salvati index in the immediate postoperative period and at 4 months, between two groups of patients operated on for acute PTR: The first group underwent isolated repair techniques (IR) and the second group had biological augmentation with autograft or allograft added to the repair (BAR). Our hypothesis was that the BAR group would have lower PH in the immediate postoperative period and at 4 months. Materials and methodsAll patients with acute PTR treated at our center between 2016 and 2022 were reviewed retrospectively. Patients with re-rupture of the operated tendon and those with non-biological augmentation were excluded. PH according to the Insall-Salvati index was measured in radiographs taken the day after surgery and at 4 months postoperatively by three orthopedic surgeons with a subspecialty in knee surgery, independently. A fourth blind evaluator analyzed the measurement results, determining the average PH and the intraclass correlation coefficient for absolute agreement among the three evaluators. The primary outcome was the difference in PH between both groups the day after surgery and at 4 months. The secondary outcome was the difference in PH between the immediate postoperative measurement and at 4 months in both groups. ResultsThis was a retrospective observational study. Thirty-one operated knees were included. IR was performed on 15 knees (48.38%), and biological augmentation was added in 16. The intraclass correlation coefficient between observer 1 and 2 was 0.88; between 2 and 3 it was 0.89; and between observers 1 and 3 it was 0.92, showing at least substantial agreement among observers. The average Insall-Salvati index the day after surgery and at 4 months was 1.15 and 1.21 for the IR group, and 0.97 and 1.07 for the BAR group, respectively. A statistically significant difference in the Insall-Salvati index was found between the two groups, both in the measurement taken the day after surgery (p<0.0001) and at 4 months (p=0.0002). Additionally, significant differences were observed indicating an increase in average PH when comparing the immediate postoperative measurement and at 4 months in each study group (for IR p=0.0016 and for BAR p<0.0001). ConclusionsThe Insall-Salvati index was significantly lower in BAR cases both the day after surgery and at 4 months postoperatively. Additionally, a significant increase in PH was observed at 4 months, regardless of the surgical technique used. Substantial inter-observer agreement was achieved for PH measurement in this cohort.

Artificial Intelligence-Driven Framework for Augmented Reality Markerless Navigation in Knee Surgery

Artificial Intelligence-Driven Framework for Augmented Reality Markerless Navigation in Knee Surgery

“The right advice”: A qualitative study examining enablers and barriers to recreational running following knee surgery

“The right advice”: A qualitative study examining enablers and barriers to recreational running following knee surgery

Academic impact of French Hip & Knee Surgery Society (SFHG): A bibliometric analysis

IntroductionThe French Hip & Knee Surgery Society (SFHG) brings together French-speaking hip and knee expert surgeons. There has been an exponential growth of orthopaedic surgical activity over the last decade and hip and knee surgery clinical research has had a similar growth. Despite this, the SFHG's contribution to the orthopaedic literature remains poorly known. To answer this question, we conducted a bibliometric study using data from the national SIGAPS database between 2013 and 2022 to determine: (1) the number of publications produced by SFHG members, (2) the proportion of articles produced by SFHG members in relation to French orthopaedic production, (3) impact markers for articles produced by SFHG member surgeons, (4) collaboration networks between SFHG member surgeons. HypothesisThe number of articles produced by SFHG member surgeons will represent a significant proportion of French scientific output in orthopaedics. Material and methodThe analysis was carried out by cross-referencing the SFHG membership list with the French database of the “Système d'interrogation, de gestion, d'analyse des publications scientifiques” (SIGAPS) and the InCites platform. Among the 189 SFHG members, we identified a list of 183 SIGAPS identifiers in the national database, corresponding to 127 distinct individuals with publications over the period 2013–2022. Several indicators were studied: number of publications; SIGAPS score for the different WoS categories; number and percentage of publications in the top1% and top10%. ResultsOf SFHG's 189 members, 127 have been identified by the SIGAPS database as “publishers”. Over the last decade, 2306 articles have been published by SFHG members. The number of publications has risen steadily, from 203 publications in 2013 to 261 publications in 2022. All SIGAPS categories were represented. Most articles were published in rank D (n = 719; 31.2%) C (n = 552; 23.9%) and B (n = 549; 23.8%) journals. Authors were in first (n = 624) or last position (n = 730) in 58.7% of publications. Orthopaedics (1,639; 71.1%), Surgery (1,124; 48.7%) and Sports surgery (335; 14.5%) were the most frequently observed topics. Orthopaedics & Traumatology: Surgery & Research is the most popular journal for SFHG members' articles, with 655/2306 articles published over the last decade, representing a 32.2% market share. Of the 2160 publications indexed on the Web of Science, 1807 (83.7%) had a French corresponding author. 31 articles (1.4%) were in the Top 1% of most-cited articles worldwide, and 310 were in the Top 10% of most-cited articles worldwide (14.5%). DiscussionSFHG is a major player in orthopaedic research in France. In 2022, it accounted for 19% of the annual volume of French scientific publications in the field of orthopaedics and traumatology. Level of evidenceIV; Retrospective study without control group.

Do altered biomechanics after knee surgery for a traumatic injury increase the risk of osteoarthritis? A systematic review of longitudinal studies

Do altered biomechanics after knee surgery for a traumatic injury increase the risk of osteoarthritis? A systematic review of longitudinal studies

How do runners run? Data from the TRAIL Cohort comparing runners with and without a history of knee surgery

How do runners run? Data from the TRAIL Cohort comparing runners with and without a history of knee surgery

Comparison of Ultrasound-Guided Genicular Pulse Radiofrequency and Fluoroscopy-Guided Intra-Articular Pulse Radiofrequency for Knee Osteoarthritis-Related Pain.

To compare two different algological intervention technique outcomes with ultrasound-guided genicular pulse radiofrequency (PRF) and fluoroscopy-guided intra-articular pulse radiofrequency for knee osteoarthritis-related pain. Observational study. Place and Duration of the Study: Izmir Bakircay University, Cigli Training and Research Hospital and Health Science University Tepecik, Training and Research Hospital, Izmir, Turkiye, between March 2022 and May 2023. Patients aged 60 years and above with stage 3 and 4 knee osteoarthritis, experiencing knee pain for more than six months, and non-responsive to conservative treatments were included. Patients with recent knee surgery or intra-articular injections and those ineligible for radiofrequency application were excluded. Ultrasound-guided genicular nerve PRF and fluoroscopy-guided intra-articular PRF were administered to the included patients. Pain and quality of life were evaluated using the visual analogue scale (VAS) and Western Ontario and McMaster Universities Index of Osteoarthritis (WOMAC) scores before and after the procedures. The study included 64 patients. Both ultrasound-guided genicular PRF and fluoroscopy-guided intra-articular PRF resulted in significant reductions in VAS and WOMAC scores at 1 and 3 months after the procedures. There was no significant difference in efficacy between the two techniques. Ultrasound-guided genicular PRF and fluoroscopy-guided intra-articular PRF are effective and safe options for managing knee osteoarthritis-related pain. Osteoarthritis, Pulse radiofrequency, Ultrasound, Fluoroscopy, Pain.

Ramp Lesions with ACL Injuries Between MRI and Arthroscopic Evaluation.

To compare the accuracy of arthroscopy with MRI in diagnosing ramp lesions associated with anterior cruciate ligament (ACL) injuries. Prospective observational study. Material and Methods: We included 100 patients with complete ACL tear. 1) Partial ACL tear, 2) ACL revision surgery or previous knee surgery, 3) Multi-ligamentous knee injury, 4) Extensive medial meniscus tear. Results: Nine patients were diagnosed with ACL-associated ramp lesions. All nine had magnetic resonance imaging (MRI) signs, but these were not statistically significant ( 2=1.884, FEp=0.348). Mean medial meniscal slope for patients with ramp lesions was 2.88 +- 0.46, without was 2.47 +- 0.55 (T=2.146, P=0.034), implying statistical significance as visualized by arthroscopy. Arthroscopy is superior in diagnosing ramp lesions. Arthroscopy is superior in diagnosing ramp lesions due to cost-effectiveness, direct visualization, and immediate treatment capability. The absence of specific MRI signs for ramp lesions further supports this conclusion.

Apprehension of future knee injury is associated with knee biomechanics in runners with a history of knee surgery: Data from the TRAIL cohort

Apprehension of future knee injury is associated with knee biomechanics in runners with a history of knee surgery: Data from the TRAIL cohort

Functional benefit of joint surgery in patients with non-vascular Ehlers-Danlos syndrome: results of a retrospective study

BackgroundEhlers-Danlos syndrome (EDS) is a hereditary disease characterised by joint hypermobility, skin hyperextensibility and tissue fragility. Hypermobile EDS (hEDS is the more frequent subtype. Joint surgery may benefit certain patients after failure of medical treatments, but there is no consensus on the optimal surgical management of patients with hEDS. The aims of this retrospective study were to chart the surgical management of patients with hEDS, to determine the role of arthroscopy and to evaluate the functional results of joint surgery, including the reintervention rates.ResultsA total of 69 patients with non-vascular EDS were evaluated (60 female; 87%). Mean (SD) age at first surgery was 25.6 ± 11.1 years. Among the 69 patients, first surgeries were carried out on the knee (n = 50; 39.4%), ankle (n = 28; 22.0%), shoulder (n = 22; 17.3%), wrist (n = 18; 14.2%) and elbow (n = 9; 7.1%). One-fifth of all first operations (20.8%) were carried out by arthroscopy, most often on the knee (36% of knee surgery cases). At the time of primary surgery, the surgeon was alerted to the diagnosis or suspicion of hEDS in only 33.9% of patients. The rate of reoperations (2 to ≥ 5) was 35.7% (10/28) for the ankle, 40.9% (9/22) for the shoulder, 44.4% (4/9) for the elbow, 50% (9/18) for the wrist and 60% (30/50) for the knee. Local or regional anaesthesia was badly tolerated or ineffective in 27.8%, 36.4% and 66.6% of operations on the wrist, shoulder and elbow, respectively. Overall, the majority of patients (> 70%) were satisfied or very satisfied with their surgery, particularly on the non-dominant side. The lowest satisfaction rate was for shoulder surgery on the dominant side (58.3% dissatisfied).ConclusionsSurgery for joint instability has a greater chance of success when it is carried out in patients with a known diagnosis of EDS before surgery. The majority of patients were satisfied with their surgery and, with the exception of the knee, there was a low rate of reoperations (≤ 50%). Arthroscopic procedures have an important role to play in these patients, particularly when surgery is performed on the knee.

Changes in Cardiopulmonary Capacity Parameters after Surgery: A Pilot Study Exploring the Link between Heart Function and Knee Surgery

Background: A knee injury in an athlete leads to periods of forced exercise interruption. Myocardial work (MW) assessed by echocardiographic and cardiopulmonary exercise testing (CPET) are two essential methods for evaluating athletes during the period following injury. However, compared to pre-surgery evaluations, the variations in cardiovascular parameters and functional capacity assessed by these methods after surgery remain unclear. Methods: We evaluated 22 non-professional athletes aged 18–52, involved in prevalently aerobic or alternate aerobic/anaerobic sports activities, who were affected by a knee pathology requiring surgical treatment. The evaluation was performed at rest using transthoracic echocardiography, including MW assessment, and during exercise using CPET. Each athlete underwent the following two evaluations: the first before surgery and the second after surgery (specifically at the end of the deconditioning period). Results: Resting heart rate (HR) increased significantly (from 63.3 ± 10.85 to 71.2 ± 12.52 beats per minute, p = 0.041), while resting diastolic and systolic blood pressure, forced vital capacity, and forced expiratory volume in the first second did not show significant changes. Regarding the echocardiographic data, global longitudinal strain decreased from −18.9 ± 1.8 to −19.3 ± 1.75; however, this reduction was not statistically significant (p = 0.161). However, the global work efficiency (GWE) increased significantly (from 93.0% ± 2.9 to 94.8% ± 2.6, p = 0.006) and global wasted work (GWW) reduced significantly (from 141.4 ± 74.07 to 98.0 ± 50.9, p = 0.007). Additionally, the patients were able to perform maximal CPET at both pre- and post-surgery evaluations, as demonstrated by the peak respiratory exchange ratio and HR. However, the improved myocardial contractility (increased GWE and decreased GWW) observed at rest did not translate into significant changes in exercise parameters, such as peak oxygen consumption and the mean ventilation/carbon dioxide slope. Conclusions: After surgery, the athletes were more deconditioned (as indicated by a higher resting HR) but exhibited better resting myocardial contractility (increased GWE and reduced GWW). Interestingly, no significant changes in exercise capacity parameters, as evaluated by CPET, were found after surgery, suggesting that the improved myocardial contractility was offset by a greater degree of muscular deconditioning.

Fall risk and incidence of delirium in hospitalized orthopedic patients

Introduction: The fall risk and fall-related injuries, as well as the risk of developing delirium, represent a constantly increasing public health problem, especially in societies with an aging population. Objective: This study aimed to assess the level of risk for falls in patients before hip or knee surgery and the frequency of delirium after hip or knee surgery. Materials &amp; Methods: The study was conducted as an observational, analytical cross-sectional study by surveying hospitalized patients at the Clinic for Orthopedic Surgery and Traumatology, Novi-Sad, Serbia, between the beginning of December 2022 and the end of January 2023. Results: From the total number of patients (N = 106), the majority (61.3%) were over 70 years of age, of which the largest number were female (female = 80 (75.5%)). The highest percentage of respondents had a level II fall risk (73.6%), while level I and level III risks had 14 respondents each (13.2%). The results of the 4AT score showed that the largest number of patients, N = 50 (47.2%), had delirium or cognitive impairment with low probability, with possible cognitive impairment in 40 patients (37.7%), while delirium was possible in 16 patients (15.1%). Conclusion: Orthopedic patients hospitalized at the University Clinical Center had level II fall risk, and the largest number of these patients had a low probability of cognitive impairment or postoperative delirium.

Long-Term Outcomes of Arthroscopically Verified Focal Cartilage Lesions in the Knee: A 19-Year Multicenter Follow-up with Patient-Reported Outcomes.

Focal cartilage lesions (FCLs) are frequently found during knee arthroscopies and may impair quality of life (QoL) significantly. Several treatment options with good short-term results are available, but the natural history without any treatment is largely unknown. The aim of this study was to evaluate patient-reported outcome measures (PROMs), the need for subsequent cartilage surgery, and the risk of treatment failure 20 years after diagnosis of an FCL in the knee. Patients undergoing any knee arthroscopy for an FCL between 1999 and 2012 in 6 major Norwegian hospitals were identified. Inclusion criteria were an arthroscopically classified FCL in the knee, patient age of ≥18 years at surgery, and any preoperative PROM. Exclusion criteria were lesions representing knee osteoarthritis or "kissing lesions" at surgery. Demographic data, later knee surgery, and PROMs were collected by questionnaire. Regression models were used to adjust for and evaluate the factors impacting the long-term PROMs and risk factors for treatment failure (defined as knee arthroplasty, osteotomy, or a Knee injury and Osteoarthritis Outcome Score-Quality of Life [KOOS QoL] subscore of <50). Of the 553 eligible patients, 322 evaluated patients (328 knees) were included and analyzed. The mean follow-up was 19.1 years, and the mean age at index FCL surgery was 36.8 years (95% confidence interval [CI], 35.6 to 38.0 years). The patients without knee arthroplasty or osteotomy had significantly better mean PROMs (pain, Lysholm, and KOOS) at the time of final follow-up than preoperatively. At the time of follow-up, 17.7% of the knees had undergone subsequent cartilage surgery. Nearly 50% of the patients had treatment failure, and the main risk factors were a body mass index of ≥25 kg/m2 (odds ratio [OR] for overweight patients, 2.0 [95% CI, 1.1 to 3.6]), >1 FCL (OR, 1.9 [CI, 1.1 to 3.3]), a full-thickness lesion (OR, 2.5 [95% CI, 1.3 to 5.0]), and a lower level of education (OR, 1.8 [95% Cl, 1.1 to 2.8]). Autologous chondrocyte implantation (ACI) was associated with significantly higher KOOS QoL, by 17.5 (95% CI, 3.2 to 31.7) points, and a lower risk of treatment failure compared with no cartilage treatment, microfracture, or mosaicplasty. After a mean follow-up of 19 years, patients with an FCL who did not require a subsequent knee arthroplasty had significantly higher PROM scores than preoperatively. Nonsurgical treatment of FCLs had results equal to those of the surgical FCL treatments except for ACI, which was associated with a better KOOS and lower risk of treatment failure. Full-thickness lesions, >1 FCL, a lower level of education, and a greater BMI were the main risk factors associated with poorer results. Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

A systematic review of crosswalks for converting patient-reported outcome measure scores in hip, knee, and shoulder replacement surgery.

We aimed to systematically review studies of crosswalks for converting patient-reported outcome measure (PROM) scores used in joint replacement, and develop a database of published crosswalks. 4 electronic databases were searched from January 2000 to May 2023 to identify studies reporting the development and/or validation of crosswalks to convert PROM scores in patients undergoing elective hip, knee, or shoulder replacement surgery. Data on study and sample characteristics, source and target PROMs, and crosswalk development and validation methods were extracted from eligible studies. Study reporting was evaluated using the Mapping onto Preference-based measures reporting Standards (MAPS) checklist. 17 studies describing 35 crosswalks were eligible for inclusion. Unidirectional crosswalks were available to convert hip-specific (Oxford Hip Score [OHS]) and knee-specific (Oxford Knee Score [OKS]) scores to the EQ-5D-3L/EQ-5D-5L. Similar crosswalks to convert disease-specific scores (WOMAC) to the EQ-5D-3L, EQ-5D-5L, and ICECAP-O Capability Index were identified. Bidirectional crosswalks for converting OHS and OKS to the HOOS-JR/HOOS-12 and KOOS-JR/KOOS-12, for converting WOMAC to the HOOS-JR/KOOS-JR, and for converting HOOS-Function/KOOS-Function to the PROMIS-Physical Function were also available. Additionally, crosswalks to convert generic PROM scores from the UCLA Activity Scale to the Lower Extremity Activity Scale in both directions were available. No crosswalks were identified for converting scores in shoulder replacement. Development methods varied with the type of target score; most studies used regression, item response theory, or equipercentile equating approaches. Reporting quality was variable, particularly for methods and results items, impacting crosswalk application. This is the first synthesis of published crosswalks for converting joint-specific (OHS, OKS, HOOS, KOOS), disease-specific (WOMAC), and generic PROMs scores (PROMIS-Physical Function, UCLA Activity Scale, Lower Extremity Activity Scale) used to assess joint replacement outcomes, providing a resource for data harmonization and pooled analysis. Crosswalks were developed using regression methods (9 studies), equipercentile equating methods (5 studies), a combination of equipercentile equating and item response theory methods (2 studies), and a combination of regression and equipercentile equating methods (1 study). A range of crosswalk validation approaches were adopted, including the use of external datasets, separate samples or subsets, follow-up data from additional time points, or bootstrapped samples. Efforts are needed to standardize crosswalk methodology and achieve consistent reporting.

Evolution and characteristics of nocturnal knee pain after knee arthroplasty.

Nocturnal knee pain and sleep disorders are two common but poorly studied issues contributing to dissatisfaction following knee arthroplasty. This study aims to evaluate the prevalence and associated factors of nocturnal pain and sleep disturbance in a population undergoing knee arthroplasty. We included in this prospective observational study 111 patients undergoing knee athroplasty (79 TKA and 32 UKA). Sleep quality, nocturnal knee pain (preoperatively, at day 3, at 3 and 6 weeks, at 3 months and one year after surgery), pain during mobilization and neuropathic pain were evaluated by scores. Painkillers and sleeping pills intake were recorded. Potentially predictive factors for postoperative nocturnal pain evolution were studied. Poor sleeping quality rate was 54% for the pre-operative patients and was still 53% at one year after surgery. The prevalence of nocturnal knee pain was 38,74% before surgery and 2,9% at one year after arthroplasty. This study has been performed at the University Hospital Saint Luc Brussels. Evolution and Characteristics of nocturnal knee pain after knee arthroplasty. Nocturnal pain after knee surgery was significantly associated with higher pain scores at rest during activity and at night. Nocturnal pain was significantly associated with a higher PSQI and DN4 scores and a higher consumption of painkillers or sleeping pills at W6. The multiple variable regression showed a statistically significant correlation between preoperative and postoperative nocturnal pain at D3 and W3. Compared to TKA, UKA patients reported significantly less nocturnal pain at W3 and W6. Bad sleeping quality is present in 54% of knee arthroplasty patients before and after surgery. Nocturnal pain is present in 39% of knee arthroplasty patients before surgery and this drops to 3% after one year. Nocturnal pain is associated with higher pain intensity, neuropathic symptoms, increased medication consumption and poor sleeping quality. Night pain disappeared faster after UKA than TKA, with a tipping point around 6 weeks postoperatively.

The Challenges and Strategies for Cleaning the Routinely Collected Data for Total Knee Replacements (TKR) and Total Hip Replacements (THR) in the Kingdom of Fife

Knee and hip replacement surgeries have revolutionised orthopaedic medicine by providing individuals with surgeries resulting in pain relief, improved mobility and a better quality of life. NHS Fife has been collecting routine data since 1998 on patient demographics, type of surgery, recovery time, follow-ups, revision, and outcomes, including complications. This work reports the challenges and strategies to clean the collected data. Data was available for 12,313 patients, totalising 14,524 THR and TKR surgeries performed in NHS Fife between 1998 and 2021. The original dataset consisted of 34 unique-structured files covering distinct periods and representing five categories: primary surgery, follow-up, infection, mortality, and revision. Data wrangling was done using the programming language R, transforming the raw data into a more functional form. The main elements of the data-cleaning procedure were combining variables representing the same information and converting void/corrupted/purposeless values into missing data, providing a standardisation for the collected information. Then, a rigorous data merging resulted in reshaping this complex collection of files into one single streamlined file for each of the five categories and type of surgery. Patients who had multiple surgeries were also cross-identifying, enabling the characterisation of the epidemiology of multiple lower limb joint replacements. The structured files can now be linked to studies across different datasets like social care, prescriptions, and primary care. It can also be used to develop future machine learning models to assess the risk of multiple primary and revision knee and hip replacements and their outcomes.

The vastus medialis oblique compensates in current patellar dislocation patients with the increased femoral anteversion

PurposeThe purpose of this study was to investigate whether the vastus medialis oblique (VMO) muscle compensates in patellar dislocation (PD) patients with the increased femoral anteversion angle (FAA).MethodsBetween 2021 and 2024, we included 60 patients with recurrent PD (RPD group). Inclusion criteria were at least two episodes of PD, as well as complete CT scans of the knee and hip. Exclusion criteria included traumatic or habitual dislocation, previous knee surgery, etc. Of these patients, 30 with excessive FAA (≥ 30°) were assigned to the A group, and 30 without excessive FAA (< 30°) to the B group. A control group of 120 patients without patellofemoral disorders was also included (C group). The cross-sectional areas of the VMO and vastus lateralis muscle (VLM) were measured 20 mm above the patella on CT scans, and the VMO/VLM area ratio was calculated. The correlation between FAA and the VMO/VLM ratio was analyzed.ResultsThe RPD group had a significantly larger FAA (15.0 ± 1.9° vs. 30.1 ± 9.6°, P = 0.040) and a smaller VMO/VLM ratio (4.2 ± 1.5 vs. 3.5 ± 1.0, P = 0.014) compared to the C group. Within the RPD group, the A group had a higher VMO/VLM ratio than the B group (4.0 ± 1.1 vs. 3.0 ± 0.7, P = 0.029). The B group’s VMO/VLM ratio was lower than that of the C group (3.0 ± 0.7 vs. 4.2 ± 1.5, P = 0.004). However, there was no significant difference in the VMO/VLM ratio between the A group and the C group. The VMO/VLM ratio showed a moderate positive correlation with FAA in the RPD group, with a correlation coefficient of r = 0.4 (P = 0.012), indicating a statistically significant relationship between the two.ConclusionPatients with recurrent PD showed a smaller VMO/VLM ratio compared to controls. Increased FAA was correlated with compensatory thickening of the VMO and a higher VMO/VLM ratio in PD patients. This suggests that increased FAA may drive biomechanical adaptations in the quadriceps, stabilizing the patella. Clinicians should consider changes in FAA when assessing and treating PD.Level of evidenceLevel III.

Arthroscopic surgery is not superior to conservative treatment in knee osteoarthritis: a systematic review and meta-analysis of randomized controlled trails

BackgroundStudies comparing the effectiveness of arthroscopic knee surgery and conservative treatment on knee osteoarthritis (OA) came up with inconsistent results. Systematic review on this topic still is still lacking. This systematic review and meta-analysis aimed to evaluate the effectiveness of arthroscopic knee surgery on knee OA, compared to conservative treatments.Materials and methodsLiterature searches were performed in PubMed, Embase, and Cochrane Library databases for randomized controlled trials (RCTs) published before on 1st July 2024. Studies comparing the effectiveness of arthroscopy and conservative treatments only on knee OA were included. Quality of included studies was evaluated by risk of bias 2 (ROB2). Long-term results in terms of pain relief, functional recovery and patients reported satisfaction were meta-analyzed to evaluate the therapeutic effectiveness.ResultsTen studies were included in this review, among which only 1 was considered as low risk of bias. Five studies were involved in meta-analyses and no difference was found in therapeutic effectiveness of arthroscopic surgery and conservative treatment on knee OA, in the evaluation of VAS (p = 0.63), WOMAC (p = 0.38), SF-36 (p = 0.74) and patient satisfaction (p = 0.07).ConclusionThe evidence does not support the effectiveness of arthroscopic knee surgery compared to conservative treatments in knee OA.

Kiteboarding Injuries: Epidemiology, Common Treatment Strategies, and Time to Return to Kiteboarding Following Injury.

To evaluate the prevalence and types of injuries incurred during kiteboarding (1), along with treatment approaches (2). In addition, the time to return to kiteboarding following injury (3) and factors associated with the rate and type of injury were analyzed (4). Recreational kiteboarding. Retrospective cohort. Three hundred twelve kiteboarders (280 men, 32 women, mean age 42.91 ± 13) were included in the study. Age, sex, experience, and the use of protective gear. Kiteboarding experience, injury location, type, incidence, nonsurgical and surgical treatment modalities, and return-to-kiteboarding data. The number of injuries calculated per 1000 sessions was a mean of 7.82 (4.83-10.81). Patients with less than 2 years of kiteboarding experience were at a greater risk of injury than more experienced kiters (P < 0.001). The knee (24.1%), ankle and foot (18.9%), ribs (12.7%), and shoulder (10.2%) were the body parts most frequently injured. Overall, 14.4% of kiters underwent surgical intervention, with knee surgery being the most common site of operation (41.9%) and the most frequently performed procedure being anterior cruciate ligament reconstruction. The pattern of reported injury was found to be different from that previously reported in the scientific literature among freeriding kiters, with knees, ribs, and shoulders being most frequently involved. Participants with <2 years of experience had a significantly greater risk of injury; therefore, proper technical and physical training is advisable.

Comparison of Subsequent Surgery After Repair in Bucket-Handle Meniscal Tears and Meniscectomy Analysis of a Large, Contained Cohort Study.

Bucket-handle meniscal tears are large longitudinal vertical meniscal tears that have an attached fragment flipped into the intercondylar notch. Meniscal repair attempts to restore the function of the meniscus and aims to preserve joint mechanics. Alternatively, meniscectomy results in quicker recovery but may lead to future degeneration. To evaluate the long-term risk of subsequent ipsilateral knee surgery in patients who underwent a bucket-handle meniscal repair (BHMR) versus meniscectomy/bucket-handle meniscal debridement (BHMD) and assess risk factors associated with subsequent knee surgical intervention. Cohort study; Level of evidence, 3. An electronic health records search for all patients who underwent arthroscopic knee meniscal surgery (repair and meniscectomy) between 2011 and 2018 was performed. Natural language processing was used to search for terms of interest in the long operative notes to determine whether these surgeries were performed for bucket-handle meniscal tears. These patients comprised our initial cohort. Study patients were followed for at least 1 year and for up to 5 years (until December 31, 2019), with censoring at death or membership disenrollment. Baseline patient characteristics and outcomes were evaluated via a database review. The primary outcome was subsequent ipsilateral knee surgeries and secondary outcomes included contralateral knee surgeries, deep surgical site infections, and venous thrombotic events. Multivariable logistic regression analyses were used to model for subsequent surgical treatment of the ipsilateral knee. A subset analysis for patients aged 30 to 50 years was then performed. The median follow-up time was 52.4 months (interquartile range [IQR], 33.5-60 months). A total of 1359 patients underwent BHMR and 1537 patients underwent BHMD. The median age was 24 years (IQR, 17-34 years) for the BHMR versus 38 years (IQR, 27-47 years) for the BHMD group (P < .001). Body mass index (BMI) was significantly lower in the BHMR group compared with the BHMD group (P < .001). BHMR was significantly more likely to be performed during a concomitant ipsilateral anterior cruciate ligament reconstruction (ACLR) than a BHMD (44.2% vs 30.1%, P < .001). During the follow-up period, a total of 656 subsequent ipsilateral procedures were performed in 393 (13.6%) patients. Patients who underwent initial BHMR were at a significantly higher risk of undergoing subsequent meniscal repair (4.3% vs 1%, P < .001), meniscectomy (12.1% vs 3.3%, P < .001), and ACLR (7.4% vs 2.9%, P < .001) compared with those who underwent BHMD. Multivariable analysis showed that BHMR, younger age, and lower BMI were risk factors for subsequent ipsilateral surgery. After adjusting for patient demographic and clinical characteristics, subset analysis showed that for patients aged 30 to 50 years, undergoing a BHMR versus a BHMD led to a 2.3-fold higher risk of subsequent surgery, a 5.3-fold higher risk of subsequent meniscal repair and a 3.2-fold higher risk of subsequent meniscectomy. BHMR was more often performed in younger patients with a lower BMI, especially during a concomitant ACLR. Patients treated with BHMR were more likely to undergo subsequent surgeries, with the likelihood decreasing with increasing age. Subset analyses showed increasing risk for subsequent surgeries with BHMR versus BHMD in the cohort consisting of patients aged 30 to 50 years.