Internal Fixation Of Fractures Research Articles

Outcomes of external versus internal fixation for traumatic lower limb fractures in low- and middle-income countries

AimsLower limb fractures are common in low- and middle-income countries (LMICs) and represent a significant burden to the existing orthopaedic surgical infrastructure. In high income country (HIC) settings, internal fixation is the standard of care due to its superior outcomes. In LMICs, external fixation is often the surgical treatment of choice due to limited supplies, cost considerations, and its perceived lower complication rate. The aim of this systematic review protocol is identifying differences in rates of infection, nonunion, and malunion of extra-articular femoral and tibial shaft fractures in LMICs treated with either internal or external fixation.MethodsThis systematic review protocol describes a broad search of multiple databases to identify eligible papers. Studies must be published after 2000, include at least five patients, patients must be aged > 16 years or treated as skeletally mature, and the paper must describe a fracture of interest and at least one of our primary outcomes of interest. We did not place restrictions on language or journal. All abstracts and full texts will be screened and extracted by two independent reviewers. Risk of bias and quality of evidence will be analyzed using standardized appraisal tools. A random-effects meta-analysis followed by a subgroup analysis will be performed, given the anticipated heterogeneity among studies, if sufficient data are available.ConclusionThe lack of easily accessible LMIC outcome data, combined with international clinical guidelines that are often developed by HIC surgeons for use in HIC environments, makes the clinical decision-making process infinitely more difficult for surgeons in LMICs. This protocol will guide research on surgical management, outcomes, and complications of lower limb shaft fractures in LMICs, and can help guide policy development for better surgical intervention delivery and improve global surgical care.Cite this article: Bone Jt Open 2024;5(11):1020–1026.

Multicenter Randomized Clinical Trial of Highly Cross-Linked Polyethylene Versus Conventional Polyethylene in 518 Primary TKAs at 10 Years

Background: Second-generation highly cross-linked polyethylene (HXLPE) has revolutionized total hip arthroplasty. However, the long-term risks and benefits of HXLPE in primary total knee arthroplasty (TKA) remain unknown. This randomized clinical trial evaluated implant survivorship, complications, radiographic results, and clinical outcomes of HXLPE and conventional ultra-high molecular weight polyethylene (UHMWPE) inserts in primary TKAs. Methods: We enrolled 518 patients (518 knees) who underwent primary TKA in 3 centers within 1 tertiary referral network. The mean age was 67 years, the mean body mass index was 32 kg/m2, and 58% of the patients were women. All of the patients underwent primary TKA with a cemented posterior-stabilized tibial insert and patellar resurfacing. Randomization proceeded via stratified dynamic allocation. The patients were blinded to their study group allocation: those in the control group (254 knees) underwent TKA with an UHMWPE insert (N2Vac; Stryker); those in the treatment group (264 knees) received an HXLPE insert (X3; Stryker). Kaplan-Meier survivorship, radiographic results, and clinical outcomes were assessed. This trial was registered with ClinicalTrials.gov. The mean follow-up was 11 years. Results: The 10-year overall survivorship free from any revision and from any reoperation was 96% and 94%, respectively. There were no differences in the risk of revision or reoperation between the groups (p > 0.05). There were a total of 19 revisions. Revision indications included periprosthetic joint infection (14 knees), instability (4 knees), and open reduction and internal fixation (ORIF) for a patellar fracture due to osteolysis around a UHMWPE insert (1 knee). There were no revisions due to polyethylene wear, osteolysis, or fracture of the post in the HXLPE group. The radiographic results and clinical outcomes were otherwise similar. Conclusions: Notably, no wear-related failures were identified in the HXLPE group, but there was 1 case of osteolysis in the UHMWPE group. Level of Evidence: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.

Incidence and Risk Factors of Infection After Fracture Fixation: A Multicenter Cohort Study.

Infection after fracture fixation (IAFF) is a severe complication. There are few multicenter studies targeting IAFF. This paper identifies independent risk factors associated with IAFF by analyzing multicenter clinical data. Appropriate interventions should be implemented to reduce the risk of IAFF. This is a multicenter retrospective cohort study. This study screened medical records of patients who underwent internal fixation for fractures at participating medical institutions from January 1, 2011, to December 31, 2020. Data extraction included demographic characteristics, disease features, surgical variables, and laboratory indicators. Logistic regression analysis was employed to identify the relationship between relevant risk factors and IAFF. Research data were sourced from the hospital's electronic medical record system and self-constructed databases. In our study, 202 patients who underwent internal fixation for fractures experienced postoperative infections, which corresponds to an overall incidence rate of approximately 1.7%. The predominant pathogen identified in these infections was Staphylococcus aureus. A multifactorial analysis indicated that several factors were independently associated with the occurrence of IAFF. These factors included BMI ranges of 24.0-27.9 and 28.0-31.9, smoking, a high ASA score, high-energy trauma, diabetes, open fracture, seasonal timing of the surgery (summer), bone grafting, drainage duration, surgical duration ≥ 180 min, and A/G ratio < 1.2. We strongly recommend that orthopedic surgeons perform comprehensive preoperative assessments on fracture patients to identify factors that may increase the risk of infection. Through the implementation of targeted interventions and beneficial modifications to these modifiable risk factors, it is possible to lower the incidence of IAFF. Additionally, proactive screening, risk stratification, and thorough patient education should be prioritized for patients with high risk but nonmodifiable factors.

Comparison of elective implant removal and complication rates between mini and small fragment implants for lateral malleolar fixation

IntroductionImplant removal after open reduction and internal fixation (ORIF) of ankle fractures is common. Mini-fragment implants have gained popularity for their smaller size, with studies showing similar load to failure to small-fragment implants. We hypothesized mini-fragment implant use for ORIF of the distal fibula is associated with a lower implant removal rate and without an increase in implant failure. MethodsIn this retrospective review study at two level-one trauma centers, adult patients (>18 years) with a lateral malleolar or bimalleolar fracture were included. Chart review was performed to determine if patients received ORIF of the distal fibula with mini-fragment implants or small-fragment implants. The primary outcome was elective implant removal of the fibular plate. Secondary outcomes included complications requiring reoperation. ResultsFive-hundred and five patients were included with a mean age of 50.6 ± 17.8 years old with a mean follow-up of was 75.7 ± 61.0 weeks. Sixty patients (11.9 %) received mini-fragment fixation. The rate of elective distal fibula implant removal for the mini-fragment group was 8.3 % (5 of 60) compared to 10.8 % (48 of 445) in the small-fragment group (p = .66). The complication rate was 6.7 % (4 of 60) for the mini fragment group versus 6.5 % (29 of 445) for the small fragment group (p = 1.00). Logistic regression demonstrated that each additional week of follow-up increased the implant removal rate with the observed odd ratio (OR) of 1.007 (95 % CI 1.002–1.012). ConclusionElective implant removal rates and complications requiring reoperation were similar between mini-fragment and small-fragment fixation of distal fibula fractures. The hypothetical benefit of low-profile mini-fragment implants should be balanced with the higher implant cost.

Development of a Surgical Difficulty Score for Open Reduction Internal Fixation of Pilon Fractures.

To identify characteristics that contribute to surgical complexity in pilon fractures and to develop a machine learning (ML) Pilon Surgical Difficulty Score (PSDS) based on these factors. Retrospective cohort study. Academic Level I trauma center. Pilon fractures (OTA/AO Type 43) in adult patients treated with open reduction internal fixation. Various patient, injury, and radiological characteristics were assessed. Surgical difficulty was measured using 2 outcomes: (1) operative time and (2) perceived difficulty. Perceived difficulty was determined using the opinion of 16 fellowship-trained orthopaedic traumatologists on a 10-point scale. Significant predictors of difficulty were determined using univariate analyses. ML models were used to develop a PSDS for both operative time and surgical difficulty. One hundred operatively fixed pilon fractures were included. Predictors of operative time were age, OTA/AO classification, articular comminution, articular impaction, bone loss, delay to surgery, poor quality reduction, number of approaches, and number of articular fragments. Predictors of perceived difficulty included OTA/AO classification and delay to surgery. Operative time PSDS had a mean absolute error of 64 minutes and a 60-minute buffer accuracy of 59%. Perceived difficulty PSDS had a mean absolute error of 1.7 points and a 2-point buffer accuracy of 63%. ML was used to generate accurate PSDSs for operative time and difficulty for pilon fractures. Future work should aim to clinically validate these PSDSs, so they may improve patient outcomes. Level III Diagnostic.

Open Reduction and Internal Fixation of Mandibular Condyle Fractures Using AUTOFIX 2.0® Cannulated Compression Screw System: A Technical Innovation with Intraoperative CT-Scan

Condylar process fractures remain a matter of ongoing controversy in maxillofacial surgery because of variety of opinions and proposed treatment modalities offered in the literature. The trend is toward open reduction and internal fixation (ORIF) whenever there is displacement or dislocation combined with unstable occlusal conditions. The fundamental treatment goals are anatomical fixation and early return to function. However, ORIF of a fractured condyle carries significant risks, including facial nerve damage, and presents challenges in reducing and stabilizing the fractured segment in an area of limited access. We present here an innovative technique for ORIF of condylar head fractures. It consists in fracture reduction and stabilization with two Kirschner wires followed by osteosynthesis with two cannulated headless compression screws using the AUTOFIX 2.0® system (Stryker, Kalamazoo, USA). This new technique, combined with intraoperative CT scan, ensures satisfactory reduction and stabilization of the dislocated joint segment, thereby restoring the condyle to its physiologically normal position.

Single-Stage Conversion of External Fixation into Internal Fixation for Compound Fractures in War-Wounded Patients: A Cohort Study in Iraq

Background: War-induced. Compound fractures cause considerable damage to the limbs, affecting mobility and quality of life; surgeons consider managing compound fractures to be a difficulty. Although multi-stage conversion from external to internal fixation is still common, multiple studies worldwide are promoting single-stage conversion. Objective: To assess the efficacy and safety of a single-stage conversion from external to internal fixation using the functional results of many Iraqi war wounded patients who were initially treated with external fixation. Methods: A retrospective cohort study analyzed the data of 40 war-wounded patients (39 males and 1 female) ranging in age from 18 to 50 years. All patients came with war-related complex fractures, which were stabilized and referred for external fixation. Following a single-stage conversion to internal fixation, the patients were followed up to assess the functional outcomes of this approach using Ketenjian's functional criteria. Results: A study of 40 patients (45 limbs), mostly male (97.8%), demonstrated a statistically significant link between non-union and time to convert from external to internal fixation. However, fracture type, Gustilo categorization, fixation method, and complication rates had no significant impact on Ketenjian's score results. Conclusions: The single-staged external to internal fixation conversion is regarded as a safe and reliable procedure with good overall functional outcomes; it could be performed by experienced surgeons instead of two-staged conversions, taking into account the patient's general health and the state of the local soft tissue.

Key-risk factors for fracture-related infection after ankle surgery: a retrospective study

Background: Fracture-related infection (FRI) is a serious complication following ankle fracture surgery, with significant implications for patient outcomes. This study aimed to identify the key risk factors associated with FRI in a cohort of patients undergoing surgical fixation of ankle fractures. Methods: A retrospective analysis was conducted on 261 patients who underwent open reduction and internal fixation (ORIF) for ankle fractures between 2019 and 2021. Patient demographics, comorbidities, and surgical details were extracted from medical records. The primary outcome was the development of FRI within one year postoperatively. Logistic regression analysis was used to identify independent predictors of infection. Results: The mean age of the patients was 61.8 years (SD=16.5), with 69.3% being female. The overall infection rate was 8%. Significant predictors of FRI included smoking (OR=13.643, p=0.002), peripheral vascular disease (OR=17.684, p&lt;0.001), and diabetes mellitus (OR=11.309, p=0.002). Gender, congestive heart failure, obesity, and age were not statistically significant predictors of infection. Conclusion: This study identifies smoking, peripheral vascular disease, and diabetes mellitus as significant risk factors for FRI following ankle fracture surgery. These findings underscore the importance of targeted interventions to manage these comorbidities in high-risk patients to reduce the incidence of postoperative infections. Further research is needed to explore the role of other potential factors and to develop effective prevention strategies.

Association of elevated exosomal miR-21 levels with nonunion in clavicular fractures post-ORIF: A prospective analysis

BackgroundThis study investigates the relationship between plasma exosomal miRNAs and nonunion risk following open reduction and internal fixation (ORIF) of clavicle fractures, aiming to identify predictive molecule to enhance patient management and personalized orthopedic care. MethodsConducted as a prospective cohort study at Taian City Central Hospital, participants included individuals with unilateral, closed clavicle fractures who underwent ORIF (n = 763, 546 males and 217 females). Plasma samples were collected preoperatively for exosome isolation and miRNA extraction, specifically analyzing miR-100, miR-124, miR-125b, and miR-21 using quantitative polymerase chain reaction (qPCR). Patients were classified into union and nonunion groups based on follow-up outcomes at a minimum of three months post-surgery. ResultsOut of 763 patients, 720 achieved union while 43 developed nonunion. Notably, the nonunion group exhibited significantly elevated exosomal miR-21 expression levels. Univariate analysis demonstrated a significant association between high miR-21 expression and nonunion occurrence (Relative Risk [RR] = 1.82, P = 0.0004). Multivariate logistic regression analysis corroborated this association (RR > 1.8, P < 0.05), adjusting for covariates. High miR-21 levels (3.12 to 7.89) were robustly associated with nonunion outcomes (RR > 4), independent of other factors. Receiver operating characteristic (ROC) curve analysis indicated certain clinical diagnostic value of miR-21 for predicting nonunion (Area Under the Curve [AUC] = 0.7885). ConclusionsThe elevated preoperative levels of exosomal miR-21 were significantly associated with an increased risk of bone nonunion at three months ORIF in patients with clavicle fractures, indicating that miR-21 holds potential as a non-specific predictive molecule.

Hip joint rice body bursitis combined with hip dysplasia and pelvic fracture: a case report

BackgroundRice body formation is an uncommon, nonspecific inflammatory process. Certain clinical features, such as chronic synovitis associated with rheumatoid arthritis, tuberculous arthritis, and osteoarthritis, can induce a non-specific response that may lead to the development of rice bodies. Currently, the etiological and prognostic significance of rice bodies remains unknown. Magnetic resonance imaging (MRI) is the preferred diagnostic imaging modality for evaluating rice body formation.Case presentationThe patient, a 44-year-old female, presented with bursitis of the hip joint and the presence of numerous rice bodies. This case is exceptionally rare and unusual as it involves a combination of hip dysplasia and pelvic fracture. The patient underwent a one-stage resection of the rice body, internal fixation of the acetabular fracture, and two-stage total hip arthroplasty, resulting in an immediate improvement in her symptoms. We reviewed the relevant literature and observed that the majority of rice bodies were predominantly found within the capsules of the shoulder and knee joints, while instances of hip joint rice body bursitis were relatively infrequent. To our knowledge, there have been no previous reports documenting a case of hip joint rice body bursitis in conjunction with hip dysplasia and pelvic fracture.ConclusionThis paper presents the rare case of hip joint rice body bursitis combined with hip dysplasia and pelvic fracture, and is one of the highlights.

Hip arthroplasty following failure of internal fixation in intertrochanteric femoral fractures: classification decision-making for femoral stem selection and clinical validation

AimsFollowing Failed Internal Fixation of Intertrochanteric Fractures (FIF-ITF), the choice of treatment remains a clinical challenge. This study introduces a novel classification system to guide the selection of femoral prostheses in hip arthroplasty (HA) and validates its clinical efficacy.MethodsRetrospectively, we analyzed 108 cases from three university-affiliated hospitals between December 2012 and February 2023 involving patients who underwent hip arthroplasty due to Failed Internal Fixation of Intertrochanteric Fractures (FIF-ITF). Patients were classified into three categories based on fracture healing, proximal femoral support, and the severity of femoral cortical defects, with subtypes identified. Surgical outcomes and complication rates were compared between the Classification-based Decision Group and the Non-classification Decision Group.ResultsThe Classification-based Decision Group did not differ significantly from the Non-classification Decision Group in operation time, blood loss, or the use of cemented stems. However, the classification system markedly reduced the risk of periprosthetic fractures intraoperatively from 22.5 to 4.4% and postoperatively from 10 to 1.4%. The Classification-based Decision Group also demonstrated higher postoperative Harris Hip Score (HHS) and Visual Analog Scale (VAS) scores.ConclusionThe proposed classification system serves as an innovative clinical tool for femoral prosthesis selection in hip arthroplasty post-FIF-ITF, effectively reducing complications and enhancing hip function in the Classification-based Decision Group, underscoring its significant clinical utility.

Open surgical approach to fractures of the mandibular condyle: surgical technique and associated complications.

This study evaluates anatomical reduction and rigid internal fixation of mandibular condyle fractures using the preauricular retroparotid approach. It also discusses advantages, deficiencies, and associated complications of the technique. This retrospective study reviewed the medical records of a total of 52 mandibular condyle fractures from 42 patients who were treated with open surgery using the preauricular retroparotid approach between January 2019 and January 2024. Preoperative and postoperative assessments included measurements of mouth opening (maximum interincisal distance), vertical mandibular movement, and facial paralysis. Moreover, the Vancouver Scar Scale (VSS) was used to evaluate scar quality at the surgical site. Descriptive statistics were used to summarize patient demographics, preoperative findings, and postoperative outcomes. Anterior open bite was the most common finding, detected in 83% of the patients before surgery. The mean mouth opening of the patients increased significantly from 29 ± 4.94 mm to 37.76 ± 2.12 mm. Vertical mandibular movement exceeding 4 cm was a finding in more than half (52.3%) of the patients. The mean VSS score, indicating scar quality, was 1.64 ± 0.70, suggesting overall good cosmetic outcomes. Plate breakage in two patients was noted as a complication during follow-up. Several surgical techniques have been described for mandibular condyle fractures, each with its own benefits and limitations.

A clinical study on the effect of axillary approach in the treatment of Ideberg type II scapular glenoid fractures

BackgroundDue to its deep position and complex surrounding anatomy, the scapular glenoid fracture was relatively difficult to deal with especially in cases of severe fracture displacement. Improper treatment may lead to failure of internal fixation and poor fracture reduction, severely affecting the function of the shoulder joint. Inferior scapular glenoid fracture was Ideberg type II fracture, and posterior approach was commonly used to deal with inferior scapular glenoid fracture. However, there are shortcomings of above surgical approach for inferior scapular glenoid fracture, such as insufficient exposure of the operative field, significant trauma, and limited screw fixation direction. This study adopts the axillary approach for surgery, which has certain advantages.MethodsThe clinical data of 13 patients with Ideberg type II scapular glenoid fractures treated from December 2018 to January 2024 were retrospectively analyzed. There were 8 males and 5 females, with an age range of 19 to 58 years and an average age of 38 years. The causes of injury were falls from heights in 7 cases and car accidents in 6 cases. There were 5 cases on the left side and 8 cases on the right side. The time from injury to surgery was 2 to 11 days, with an average of 5.5 days. All cases underwent open reduction and internal fixation through the axillary approach. Postoperative X-ray and CT three-dimensional reconstruction were performed on the next day to evaluate the fracture reduction and the position of internal fixation. During the follow-up period, follow-up examinations were performed every two months in the first half of the year and every three months in the second half. CT scans were performed during the examinations to assess the glenohumeral joint congruence, fracture healing, and position of internal fixation. The shoulder joint function was evaluated at 6 months postoperatively according to the Constant-Murley value score.ResultsThe patients all achieved primary wound healing after surgery, without any complications such as infection or nerve injury. Re-examination on the second day after operation, all fractures obtained excellent reduction, and the internal fixation was in excellent position, and no screw was found to enter the joint cavity. All patients in this group were followed up for 6 to 25 months, with an average follow-up time of 11.7 months. All fractures were bony unioned, and the healing time ranged from 4 to 6 months, with an average healing time of 4.8 months. At 6-month follow-up, according to the Constant-Murley score, 11 cases were excellent and 2 case was good.ConclusionOpen reduction and internal fixation through the axillary approach is an feasible and safe surgical method for the treatment in scapular Ideberg type II glenoid fractures with less stripping of soft tissue, minimal surgical trauma, and the incision is concealed and beautiful. It can provide a strong internal fixation for fractures, so patients can perform functional exercise early after operation, and the clinical results is satisfactory.

Screw and absorbable suture tension band technique for geriatric weber type A lateral malleolus fractures

PurposeThe optimal method of internal fixation for ankle fractures in geriatric patients remains debated. This study aims to assess the efficacy of the screw and absorbable suture self-compression tension band technique in treating Weber Type A lateral malleolus fractures in geriatric patients. MethodsClinical data were analyzed from 31 geriatric patients with Weber Type A lateral malleolus fractures treated between March 2018 and June 2022. All patients underwent fixation with two screws combined with an absorbable suture self-compression tension band. The cohort comprised 18 males and 13 females, with a mean age of 65.6 ± 7.3 years. The study recorded operative time, intraoperative blood loss, fracture healing time, and postoperative complications. Outcomes were evaluated using the American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot score, visual analogue scale (VAS) for pain, and ankle range of motion (ROM). ResultsOf the 31 patients, 30 achieved primary wound healing. Follow-up periods ranged from 12 to 36 months (mean: 19.5 months). The average operative time was 44.7 ± 13.6 min, with slightly longer times for patients with additional injuries. Fracture healing time ranged from 8 to 16 weeks (mean: 12.1 weeks), with no cases of delayed healing or non-union, and no instances of fixation loosening or failure. Postoperative complications included one cases of superficial infection, one case of numbness, one case of foreign body sensation, and one case of prolonged pain. At the final follow-up, the mean AOFAS score was 89.8 ± 6.2, with VAS scores of 0 in 18 cases, 1 in 11 cases, and 2 in 2 cases. The average ROM was 65.4° ± 4.3°, resulting in a clinical satisfaction rate of 87.1 %. ConclusionThe use of screws combined with an absorbable suture self-compression tension band for treating Weber Type A lateral malleolus fractures in geriatric patients is straightforward, effective, and warrants broader adoption.

Arthroscopic reduction internal fixation for glenoid fractures: a systematic review of the outcomes and complications.

With the advanced arthroscopic technique, arthroscopic-assisted reduction and internal fixation (ARIF) is gaining popularity for Glenoid fractures with and without scapular involvement. ARIF offers a complete view of the articular surfaces and diagnoses and treats other associated injuries. ARIF provides less soft tissue trauma than open reduction internal fixation (ORIF). The aim of this systemic review is to look at the functional outcomes and complications of ARIF. A systematic review of the PubMed, Embase, and Scopus databases was performed. The search terms included "glenoid fracture" OR "scapula fracture" AND "arthroscopic fixation" OR "arthroscopy" OR "arthroscopic-assisted reduction and internal fixation". Studies were limited to English publications with reported functional outcome measures and complications. Patient demographic characteristics, clinical outcomes including range of motion, outcome performance scores including ROWE score, visual analogue scale and American shoulder and elbow surgeons score and complications were extracted. Five studies met the inclusion criteria. The participants ranged in age from 41 to 48, and the mean length of follow-up ranged from 12 to 41months postoperatively. The mean ROWE scores for the ARIF group were significantly better postoperatively. ARIF allows accurate diagnosis of the fracture pattern and associated injuries, in addition to representing a safe option to treat glenoid fractures with or without scapular fractures with fewer complications compared to ORIF. Level of Evidence: Level IV, Systematic review.

A Perioperative Prospective Study of WALANT in Open Reduction Internal Fixation of Ankle Fractures: A Malaysian Experience

A Perioperative Prospective Study of WALANT in Open Reduction Internal Fixation of Ankle Fractures: A Malaysian Experience

The Effects and Risk Factors of Femoral Neck Shortening after Internal Fixation of Femoral Neck Fractures.

Internal fixation has been established as a treatment of choice in relatively young patients with femoral neck fractures. Due to the characteristics of femoral neck anatomy and blood supply, complications such as malunion, nonunion, avascular necrosis, and femoral neck shortening can occur after internal fixation of femoral neck fractures. Unlike other complications such as avascular necrosis or nonunion, femoral neck shortening has not been relatively well studied. This study aimed to investigate the risk factors and clinical outcomes of femoral neck shortening after internal fixation of femoral neck fractures. From June 2012 to July 2022, among 102 patients who underwent internal fixation of femoral neck fractures, 94 patients who met inclusion and exclusion criteria were retrospectively analyzed. Internal fixation of the femoral neck was done with cannulated compression screws or a femoral neck system. Patients were divided into 2 groups; femoral neck shortening (≥ 5 mm) and no shortening (< 5 mm) according to measurement on follow-up hip anteroposterior (AP) simple radiographs compared with postoperative hip AP simple radiographs. Demographic and radiographic data were compared between the 2 groups. The modified Harris Hip Score (mHHS) and a visual analog scale (VAS) were used to evaluate the clinical outcomes. Among 94 patients, femoral neck shortening was observed in 33 (35.1%). In chi-square test, Pauwels angle, Garden type III or IV (displacement), and cortical comminution were significantly correlated with neck shortening (p < 0.05). In the multifactorial logistic regression test, cortical comminution was significantly correlated with femoral neck shortening (p < 0.01). The shortening group showed significantly lower clinical scores in terms of mHHS and VAS (p < 0.01). The femoral neck shortening group showed significantly lower clinical scores of mHHS and VAS than the no-shortening group. The presence of cortical comminution in preoperative hip computed tomography is a risk factor of femoral neck shortening after internal fixation of femoral neck fractures.

Clinical and radiographic results of internal fixation of quadrilateral plate fractures of acetabulum.

Quadrilateral plate (QLP) is a relatively thin bony structure located below the pelvic brim proximal to the hip joint, so management of its fractures is challenging. Evaluation of the functional and radiological outcomes of internal fixation of quadrilateral plate acetabular fractures; comparison of two methods of fracture fixation. A prospective multicentric study including 30 patients who underwent open reduction and internal fixation of QLP fractures through modified Stoppa approach. Patients were divided into two groups according to the method of fixation (anatomical QLP plate vs suprapectineal and infrapectineal plates). Post-operative quality of reduction was evaluated using Matta score. Radiographical assessment according Matta's grading criteria and clinical outcome assessment using the Harris Hip Score (HHS) were repeated at follow-up and at one year to assess displacement. Mean age of patients was 34.9 ± 12.1years. After one year follow-up, clinically mean HHS was 88. ± 5.74. Radiologically post-operative reduction quality was anatomical in 21 (70%) patients, satisfactory in eight (26.7%) patients and unsatisfactory in one (3.3%) patient. Matta's grading at the last follow-up was excellent in 21 (70%) patients, good in six (20%), fair in two (6.7%) patients and poor in one (3.3%) patient. No significant difference was recorded between the two groups in terms of radiographical and clinical results and rate of complications. Accurate reduction of quadrilateral plate fracture with secure fixation through modified Stoppa approach provides good and reproducible outcomes with few complications regardless the type of the implant.

Use of Dual Mobility Cups Reduce Dislocation Risk After Internal Fixation for Acetabular Fracture Concomitant With Total Hip Arthroplasty in Patients Who are Over 60 Years Old

Treatment of complex acetabular fractures in patients over 60 remains challenging. Functional treatments for these fractures have yielded disappointing outcomes. Internal fixation may fail facing this porotic bone, and postoperative non weight bearing may expose the patient to decubitus complications. Our hypothesis was that use of a dual mobility cup (DMC) reduces dislocation risk after concomitant internal fixation and total hip arthroplasty (THA) for acetabular fracture in patients who are over 60 years old. A retrospective, observational non comparative and continuous study was conducted from January 2015 to September 2022. Patients aged over 60 years who had displaced acetabular fractures, treated surgically via concomitant internal fixation and THA, utilizing a DMC exclusively through the Kocher-Langenbeck approach and a minimum follow-up was of one year, were included. There were 45 patients (45 hips) who had an average age of 71 (range, 60 to 88) who were included (75.5% men). The main mechanisms of injury were the motor vehicle accidents (in 21 cases (46,7%)). Bi-column fractures were prevalent (46.6%). The analysis of complications included intraoperatively nerve palsy, postoperatively dislocations, deep infections, periprosthetic fractures and loosening. Clinical assessment included the Harris hip score (HHS) and the level of return to previous activities. Radiological evaluation assessed fracture union, periprosthetic osteolysis, graft integration, the presence of leg length discrepancy (LLD) and heterotopic ossification. There was one case of dislocation (2.2%) requiring reoperation for replacement of the prosthetic neck, and one patient (2.2%) experienced early THA infection, successfully treated with surgical lavage and antibiotics. Functional outcomes showed a mean HHS of 88 (range, 69 to 99) and 84% of patients resumed their previous activities. Radiological follow-up revealed no loosening. This study has shown that the use of DMC in concomitant THA with Open Reduction and Internal Fixation (ORIF) for acetabular facture in patient over age 60 years achieved a low dislocation rate with favorable clinical and radiological outcomes and a low complication rate.

Fix or Replace? Comparable Outcomes with Internal Fixation and Distal Femoral Replacement for Periprosthetic Fractures above Total Knee Arthroplasty

IntroductionThe optimal treatment for periprosthetic fracture (PPfx) around total knee arthroplasty (TKA) remains a topic of debate. Due to its low incidence, comparative studies analyzing arthroplasty and fixation are lacking in the literature. The purpose of this study was to compare the outcomes of distal femoral replacement (DFR) and open reduction and internal fixation (ORIF) for distal femur PPfx. MethodsWe reviewed a consecutive series of 99 patients who underwent DFR (n = 54) or ORIF (n = 45) for distal femur PPfx. The indications for DFR were reviewed. Fractures were classified based on their relation to the implant using the Su classification. The primary outcome was re-revision, while secondary endpoints included inpatient complications, mortality within the first year, and mechanical complications such as loosening and non-union. ResultsType 2 fractures were the most prevalent type in both groups (DFR 37 versus ORIF 48.9%), while Type 1 fractures were more commonly treated with ORIF (35.6 versus 16.7%) and Type 3 with DFR (46.3 versus 15.6%) (P = 0.003). The preferred techniques in the ORIF group were plate osteosynthesis (66.7%) and retrograde nailing (31.1%). At a mean follow-up of 4.2 years (range, 1 to 14.1), DFR and ORIF did not demonstrate any difference in revision rates (13 versus 24.4%, P = 0.140) or mortality (3.7 versus 4.4%, P = 0.887). However, more mechanical complications were noted in the ORIF group (22.2 versus 7.4%, P = 0.035). ConclusionBoth distal femoral replacement and open reduction and internal fixation have comparable revision rates, complications, and clinical outcomes when used in supracondylar periprosthetic distal femur fractures. Longer-term studies are needed to assess DFR survivorship as well as outcomes of newer trauma techniques such as nail-plate combinations.