Facet joint violation after open and percutaneous posterior instrumentation: a comparative study.

Purpose: Posterior instrumentation is the state-of-the-art surgical treatment for fractures of the thoracic and lumbar spine. Options for pedicle screw placement comprise open or minimally invasive techniques. Open instrumentation causes large approach related muscle detachment, which minimally invasive techniques aim to reduce.

Conservative treatment of acute traumatic posterior shoulder dislocations (Type A) is a viable option especially in patients with centred joint, low gamma angle, and middle or old age.

Purpose: Purpose of this study was to evaluate the mid- to long-term outcome after conservatively treated first-time posterior shoulder dislocations and to determine structural defects associated with failure.

Methods: In this multi-centric retrospective study, 29 shoulders in 28 patients with first-time acute posterior shoulder dislocation (Type A1 or A2 according to the ABC classification) and available cross-sectional imaging were included. Outcome scores as well as radiological and magnetic resonance imaging were obtained at a mean follow-up of 8.

The acetabular roof reinforcement plate for the treatment of displaced acetabular fractures in the elderly: results in 59 patients.

Introduction: Open reduction and internal fixation is considered the gold standard of treatment for displaced acetabular fractures in younger patients. For elderly patients with osteoporotic bone quality, however, primary total hip arthroplasty (THA) with the advantage of immediate postoperative mobilization might be an option. The purpose of this study was to evaluate the clinical and radiological outcomes of surgical treatment of displaced osteoporotic acetabular fractures using the acetabular roof reinforcement plate (ARRP) combined with THA.

Muscle volume imbalance may be associated with static posterior humeral head subluxation.

Background: The transverse force couple (TFC) of the rotator cuff (subscapularis vs. infraspinatus and teres minor muscle) is an important dynamic stabilizer of the shoulder joint in the anterior-posterior direction. In patients with posterior static subluxation of the humeral head (PSSH), decentration of the humeral head posteriorly occurs, which is associated with premature arthritis.

Return to sports after glenoid reconstruction using an implant-free iliac crest bone graft.

Purpose: The purpose of this study was to evaluate sports ability and the rate of return to sports after implant-free iliac bone graft for recurrent, anterior shoulder instability and anterior glenoid bone loss. Subgroups of younger and older patients and patients who had previous arthroscopic Bankart surgery and those who did not have such surgery before implant-free iliac bone graft were formed and compared.

Methods: We retrospectively analyzed 34 patients; 14 patients had previous arthroscopic Bankart surgery, and 20 patients did not have the surgery; The median age at the time of iliac bone graft was 35.

Correction to: Sleep improvement after hip arthroplasty: a study on short-stem prosthesis.

Authors first and last names have been interchanged. The correct presentation is given above.

Sleep improvement after hip arthroplasty: a study on short-stem prosthesis.

Purpose: The purpose of this study was to evaluate sleep disturbance prospectively before and after short-stem hip arthroplasty.

Methods: A prospective study on 25 patients undergoing a primary unilateral total short-stem hip replacement was conducted. Patients were observed for six months.

Long-Term Outcome After Pectoralis Major Transfer for Irreparable Anterosuperior Rotator Cuff Tears.

Background: Promising short-term outcomes after pectoralis major tendon transfer for the treatment of an irreparable anterosuperior rotator cuff tear have been reported. The purpose of this study was to evaluate the long-term outcome.

Methods: Twenty-seven consecutive patients with irreparable anterosuperior rotator cuff tears without advanced cuff arthropathy or advanced humeral head migration were treated with a partial subcoracoid pectoralis major tendon transfer between 2004 and 2005.