Predicting Instability Risk Following Hemiarthroplasty for Femoral Neck Hip Fractures in Geriatric Patients.

BACKGROUND: Although a rare complication, dislocation following hemiarthroplasty (HA) for a femoral neck hip fracture is associated with increased mortality, readmission, and possible revision surgery. To date many of the specific risk factors have been difficult to demonstrate. Patient factors, surgical factors, as well as morphological factors need to be assessed. Therefore, the purpose of this study was to elucidate the risk factors for dislocation of HA following femoral neck hip fractures in the geriatric population. METHODS: This was a retrospective review of 270 patients who had hip fractures. Medical records between the years 2016 and 2022 informed binomial regression predictive models. The discriminative ability of variables in the final model and acetabular anteversion to predict dislocation was assessed with area under the curve (AUC) estimates. RESULTS: Center edge angle (odds ratio 1.23), abduction angle (odds ratio 1.17), and depth width ratio (2.96e-11) were significant predictors of dislocation (P = .003, .028, and <.001, respectively). Center edge angle and depth width ratio (<44.1 ° and .298), respectively, were cut scores for risk. Dementia had a high discriminative of ability, as did men (AUC = 0.617, 0.558, respectively). Acetabular anteversion was not predictive of dislocation (P = .259) and theorized anteversion safe zones had poor discriminative ability with AUCs of 0.510 and 0.503, respectively. CONCLUSIONS: Morphological factors related to hip dysplasia and a shallow acetabulum, which can be assessed with a radiograph alone, were found to be predictors of instability following HA in the elderly. Hemiarthroplasty implant design and manufacturer, and also acetabular version did not contribute to instability risk.

Progression From Steroid Injection to Surgery in Carpal Tunnel Syndrome Patients With Concurrent Ulnar Nerve Compression: A Retrospective Analysis.

BACKGROUND: Steroid injections are a common treatment option in the management of carpal tunnel syndrome (CTS). This study assesses various prognostic factors for progression to carpal tunnel release (CTR) after a first-time steroid injection for CTS with specific focus on concomitant ulnar nerve compression (UNC). METHODS: This is a retrospective study of 426 hands with CTS treated with a first-time steroid injection in the Long Island region of New York. The main predictor variable was UNC measured in two analytical models of positive UNC and location of UNC (wrist or elbow). Multivariate logistic regression analyses adjusted for demographic, medical, and CTS-related variables for 2 study outcomes occurring within 1 year: (1) CTR; and (2) steroid reinjection. RESULTS: Overall progression to CTR within 1 year of steroid injection was 23.0%. Ulnar nerve compression was present in 16.7% of patients and was significantly associated with increased odds for CTR but not with steroid reinjection. These results were further localized to be specific for UNC at the elbow. A moderate or severe result on electrodiagnostic studies was associated with increased odds for CTR. Increased age was associated with slightly increased odds of steroid reinjection while a history of distal radius fracture was associated with decreased odds of steroid reinjection. CONCLUSIONS: Carpal tunnel syndrome patients with UNC may benefit from earlier definitive treatment with CTR rather than attempting steroid injections, as they are more likely to seek reintervention within 1 year of their initial injection.

To Reconstruct or Not: A Case of Acute Reconstruction of the Forearm Interosseous Membrane with CMC Mini Tight Rope.

Introduction: Essex Lopresti fractures are rare injuries of the forearm. Extent of damage to the interosseous membrane (IOM) in this setting is variable and can lead to disabling sequelae when not recognized and managed appropriately. While chronic reconstruction for longitudinal radioulnar dissociation is well studied, acute reconstruction of the membrane is infrequently documented and surgical techniques vary. There are only five documented cases of acute IOM reconstruction for Essex Lopresti injuries (ELIs). This is the first described case using a mini suture-button construct in conjunction with a radial head replacement and distal radioulnar joint (DRUJ) pinning, while also providing long-term radiographic and functional follow-up of 2 years. Case Report: We present a case of a 40-year-old male who sustained an Essex Lopresti fracture that was acutely recognized and surgically managed with a radial head replacement, DRUJ pinning, and acute reconstruction of the IOM with a Mini TightRope suture button construct. We also provide a post-operative rehabilitation protocol with early range of motion and pin removal. At our final 2-year postoperative follow-up, the patient demonstrated excellent functional outcomes. Conclusion: This case illustrates that a CMC Mini TightRope can be used for acute reconstruction of the IOM in the setting of ELIs which allows for early range of motion and DRUJ pin removal due to the maintenance of longitudinal radioulnar reduction.

Atraumatic Posterior Thigh Compartment Syndrome Presenting as an Acute Sciatic Nerve Palsy.A Case Report.

Atraumatic posterior thigh compartment syndrome is a rare but serious condition. We document a case of atraumatic posterior thigh compartment syndrome that presented as an acute sciatic nerve palsy and required emergent fasciotomy. Based on this case, one should keep in mind the diagnosis of posterior thigh compartment syndrome when encountering a patient presenting with an acute sciatic nerve palsy.

An Evaluation of the Source and Content of Kienböck's Disease Information on the Internet.

Introduction The use of the internet for health-related information continues to increase. Because of its decentralized structure, information contained within the World Wide Web is not regulated. The purpose of the present study is to evaluate the type and quality of information on the internet regarding Kienböck's disease. We hypothesized that the information available on the World Wide Web would be of good informational value. Materials and Methods The search phrase "Kienböck's disease" was entered into the five most commonly used internet search engines. The top 49 nonsponsored Web sites identified by each search engine were collected. Each unique Web site was evaluated for authorship and content, and an informational score ranging from 0 to 100 points was assigned. Each site was reviewed by two fellowship-trained hand surgeons. Results The informational mean score for the sites was 45.5 out of a maximum of 100 points. Thirty-one (63%) of the Web sites evaluated were authored by an academic institution or a physician. Twelve (24%) of the sites were commercial sites or sold commercial products. The remaining 6 Web sites (12%) were noninformational, provided unconventional information, or had lay authorship. The average informational score on the academic or physician authored Web sites was 54 out of 100 points, compared with 38 out of 100 for the remainder of the sites. This difference was statistically significant. Conclusion While the majority of the Web sites evaluated were authored by academic institutions or physicians, the informational value contained within is of limited completeness. More than one quarter of the Web sites were commercial in nature. There remains significant room for improvement in the completeness of information available for common hand conditions in the internet.