Posterior shoulder instability, although relatively rare in the general population, is more commonly seen in athletes, especially those in contact sports. Although nonoperative treatment has been associated with satisfactory results in the setting of posterior shoulder instability, conservative management may ultimately fail and lead to recurrence particularly in young, male patients. Both arth...

Traumatic posterior instability may occasionally cause a large osteochondral lesion when the anterior humeral head is compressed against the posterior glenoid rim. This is termed a reverse Hill–Sachs lesion. Such osteochondral defects may be very large in the case of chronic locked dislocations. Even in acute posterior disclocations, closed reduction may be difficult when the humeral head is lo...

The surgical treatment of recurrent posterior shoulder instability via a posterior approach has had a variable degree of success reported in the literature with recurrence rates ranging between 8% and 45%. The purpose of this study was to review the results of posterior capsulorrhaphy in a consecutive series of patients with recurrent posterior instability. Seventeen consecutive patients underw...

CONTEXT Posterior shoulder instability is a commonly misdiagnosed disorder in many competitive athletes. TYPE OF STUDY Clinical review. EVIDENCE ACQUISITION Relevant studies on posterior shoulder instability from 1950 to 2010 in PubMed and Cochrane databases were reviewed. RESULTS A total of 107 studies were reviewed. CONCLUSION Patients who have undergone at least 6 months of physical ...

This study evaluates primary hip replacement performed using a modified posterior approach through a limited posterior trochanteric osteotomy bone block that includes the insertions of the posterior capsule and short external rotators--as this may enhance secure reattachment of the posterior soft-tissue envelope and protect against postoperative instability. Sixty-eight consecutive primary hip ...

Tibiofemoral instability is a common complication after total knee arthroplasty (TKA), accounting for up to 22% of all revision procedures. Instability is the second most common cause of revision in the first 5 years after primary TKA. In this study, 13 knees with tibiofemoral instability after TKA were identified among 693 consecutive primary TKA procedures. Patient demographics, body mass ind...

The "floating" posterior inferior glenohumeral ligament (floating PIGHL) is an uncommon cause of posterior shoulder instability. This pathologic lesion, defined as detachment of both the origin of the PIGHL (posterior Bankart lesion) and insertion of the of the PIGHL from its humeral head insertion site, often results in significant and persistent shoulder instability symptoms. An effective sur...

background: tibial avulsion fractures of the posterior cruciate ligament are not infrequent. however, controversies exist between the fixation of the fragments and their reconstruction in the cases with small bony fragments. this prospective study was undertaken to study the results after fixation of the fragments by the malleolar screw and the pull through suture techniques.   methods: from ju...