Background and purposeThe aim of short-stem total hip arthroplasty is to preserve proximal bone stock for future revisions, to improve biomechanical reconstruction, and to make minimally invasive approaches easier. It is therefore being increasingly considered to be a sound alternative to conventional total hip arthroplasty, especially for young and active patients. However, it is still unknown whether survival rates of short-stem hips match current standards. We made a systematic summary of reported overall survival after short-stem total hip arthroplasty.Materials and methodsWe conducted a systematic review of English, French, German, and Dutch literature. 2 assessors independently identified clinical studies on short-stem hip arthroplasty. After recalculating reported revision rates, we determined whether each implant had a projected revision rate of 10% or less at 10 years of follow-up or a revision rate per 100 observed component years of 1 or less. Stems were classified as “collum”, “partial collum”, or “trochanter-sparing”.Results and InterpretationWe found 49 studies, or 51 cohorts, involving 19 different stems. There was a large increase in recent publications. The majority of studies included had a follow-up of less than 5 years. We found a large number of observational studies on “partial collum” and “trochanter-sparing” stems, demonstrating adequate survival rates at medium-term follow-up. Clinical evidence from “collum stem” studies was limited to a small number of studies with a medium-term follow-up period. These studies did not show a satisfactory overall survival rate.
Background The purpose of this study was to assess whether there is a threshold Disability of Arm, Shoulder and Hand (DASH) score among patients with common hand diagnoses that corresponds with an estimated diagnosis of clinical depression. Methods Two hundred sixty-nine patients with one of five common upper extremity disorders completed a measure of upper extremity-specific disability (QuickDASH or DASH) and a questionnaire assessing depressive symptoms (Patient Health Questionnaire (PHQ) or Center for Epidemiologic Studies Depression scale (CES-D). A receiver operating characteristic (ROC) analysis of the discriminatory value of a threshold DASH score for an estimated diagnosis of clinical depression was assessed. The threshold DASH score with the highest positive predictive value for an estimated diagnosis of clinical depression was selected. In bivariate analysis, the association between demographic factors, disease factors, and an estimated diagnosis of clinical depression was examined. Results The area under the ROC curve for a threshold DASH value diagnostic of an estimated diagnosis of clinical depression was 0.75, indicating clinical usefulness for a threshold DASH score as a screening test for depression. The highest positive predictive value of 72 % occurred at a threshold QuickDASH/DASH score of 55. In bivariate analysis, only diagnosis and years of education were significantly different between patients with and without an estimated diagnosis of clinical depression. Conclusion A DASH score of 55 or greater in patients with common upper extremity disorders has an acceptable area under the curve and positive predictive value for an estimated diagnosis of clinical depression. Level of Evidence: Level 3, diagnostic study
BackgroundFracture-dislocations of the proximal interphalangeal joint are vexing because subluxation and articular damage can lead to arthrosis and the treatments are imperfect. Ideally, a surgeon could advise a patient, based on radiographs, when the risk of problems merits operative intervention, but it is unclear if middle phalanx base fracture characteristics are sufficiently reliable to be useful for surgical decision making. Questions/purposesWe evaluated (1) the degree of interobserver agreement as a function of fracture characteristics, (2) the differences in interobserver agreement between experienced and less-experienced hand surgeons, and (3) what fracture characteristics and surgeon characteristics were associated with the decision for operative treatment. Methods Ninety-nine (33%) of 296 hand surgeons evaluated 21 intraarticular middle phalanx base fractures on lateral radiographs. Eighty-one surgeons (82%) were in academic practice and 57 (58%) had less than 10 years experience. Participants assessed six fracture characteristics and recommended treatment (nonoperative or operative: One of the authors (DR) certifies that he, or a member of his immediate family, has or may receive payments or benefits, during the study period, an amount less than USD 10,000 from Wright Medical (Memphis, TN, USA); an amount less than USD 10,000 from Skeletal Dynamics (Miami, FL, USA); an amount less than USD 10,000 from Biomet (Warsaw, IN, USA); an amount less than USD 10,000 from AO North America (Paoli, PA, USA); and an amount less than USD 10,000 from AO International (Dubendorf, Switzerland). All ICMJE Conflict of Interest Forms for authors and Clinical Orthopaedics and Related Research 1 editors and board members are on file with the publication and can be viewed on request. Clinical Orthopaedics and Related Research 1 neither advocates nor endorses the use of any treatment, drug, or device. Readers are encouraged to always seek additional information, including FDAapproval status, of any drug or device prior to clinical use. Each author certifies that his or her institution approved the human protocol for this investigation, that all investigations were conducted in conformity with ethical principles of research, and that informed consent for participation in the study was obtained. Results With all surgeons pooled together, the interobserver agreement for fracture characteristics was substantial for assessment of a 2-mm articular step or gap (kappa, 0.73; 95% CI, 0.60-0.86; p \ 0.001), subluxation or dislocation (kappa, 0.72; 95% CI, 0.58-0.86; p \ 0.001), and percentage of articular surface involved (intraclass correlation coefficient [ICC], 0.67; 95% CI, 0.54-0.81; p \ 0.001); moderate for comminution (kappa, 0.55; 95% CI, 0.39-0.70; p \ 0.001) and stability (kappa, 0.54; 95% CI, 0.39-0.69; p \ 0.001); and fair for the number of fracture fragments (ICC, 0.39; 95% CI, 0.27-0.57; p \ 0.001). When recommending treatment, interobserver agreement was substantial (kappa, 0.69; 95% CI, 0.50-0.88; p \ 0.001)...
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