Correlation of magnetic resonance arthrography with revision hip arthroscopy.

Background: Arthroscopic approaches for the diagnosis and treatment of hip disorders are well established; however, there are limited data regarding revision hip arthroscopy. There have been several studies evaluating the findings of MR arthrography with primary hip arthroscopy, but to our knowledge, no study has evaluated the diagnostic value of MR arthrography before revision hip arthroscopy.

Questions/purposes: We obtained sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of MR arthrography to detect labral lesions, chondral lesions and loose bodies before revision hip arthroscopy.

Technical pearls for hip arthroscopy in the management of synovial chondromatosis.

Synovial chondromatosis of the hip is often underdiagnosed. A high index of suspicion and good quality imaging studies are therefore essential. A wide array of long and curved instrumentation is needed at surgery.

Blood, bugs, and motion - what do we really know in regard to total joint arthroplasty?

In total joint arthroplasty, it is often necessary to formulate decisions that are not clearly evidence-based. This review presents some current controversial topics in total joint arthroplasty, including preoperative autologous blood donation versus erythropoietin (EPO) usage, preoperative screening and treatment for methicillin resistant Staphylococcus aureus (MRSA), and the use of continuous passive motion (CPM) following total knee arthroplasty, providing an evidence-based guide for the treating orthopaedic surgeon. Our review shows that preoperative autologous blood donation is over utilized, with EPO being under utilized.

Failure of proximal femoral locking compression plate: a case series.

Objectives: The treatment of fractures of the proximal femur has evolved significantly over recent years. The most recent advance is the proximal femoral locking compression plate (PF-LCP; Synthes, West Chester, PA). We present seven failures of the PF-LCP in an attempt to elicit reasons for the failures so that these pitfalls can be avoided in the future.

Obturator dislocation of total hip arthroplasty--a case report.

This study consists of a single case report of a patient who had an irreducible obturator dislocation of a total hip arthroplasty after a motor vehicle accident, not previously described in the English literature. In particular, the focus will be on offering an educated opinion on the risk factors for dislocation and difficulties encountered with this type of dislocation. The aim is to offer valuable insight based on the operative experience with this patient and to supplement the literature with the management of such a complication following total hip arthroplasty.

High-altitude illness and muscle physiology.

High-altitude illness is a growing concern in sports medicine that affects persons shortly after they have climbed to a new high-altitude level to which their body is not acclimatized. With the increasing popularity of extreme sports, such as high-altitude mountaineering, skiing, and snowboarding, the incidence of complications arising from sports activities at high altitudes is increasing. High-altitude pulmonary edema and high-altitude cerebral edema are potentially fatal conditions.