Introduction Rotator cuff tears are common shoulder injuries that cause significant pain and often require surgical intervention and physical therapy. Reestablishment of normal shoulder kinematics is often difficult and relies on balancing the active muscle forces and passive contact forces between the glenoid and the humeral head. Previous studies have determined that damage to the rotator cuf...

BACKGROUND Articular surfaces reconstruction is essential in total shoulder arthroplasty. Because of the limited glenoid bone support, thin glenoid component could improve anatomical reconstruction, but adverse mechanical effects might appear. METHODS With a numerical musculoskeletal shoulder model, we analysed and compared three values of thickness of a typical all-polyethylene glenoid compo...

Glenoid component failure is the most common complication of total shoulder arthroplasty. Glenoid components fail as a result of their inability to replicate essential properties of the normal glenoid articular surface to achieve durable fixation to the underlying bone, to withstand repeated eccentric loads and glenohumeral translation, and to resist wear and deformation. The possibility of gle...

UNLABELLED Anterior glenohumeral instability complicated by bone loss is a challenging problem and, when severe, may require surgical treatment with bone grafting. We review our institution's experience with humeral head and glenoid bone grafting for large Hill-Sachs lesions and glenoid defects. MATERIALS AND METHODS Patients who underwent intra-articular bone reconstruction for Hill-Sachs an...

STATEMENT OF THE PROBLEM Finding a significant relationship between temporomandibular joint (TMJ) morphology and the incidence of temporomandibular dysfunction (TMD) may help early prediction and prevention of these problems. PURPOSE The purpose of the present study was to determine the morphology of mandibular fossa and the articular eminence inclination in patients with TMD and in control g...

BACKGROUND Multiple bone-grafting procedures have been described for patients with glenoid bone loss and shoulder instability. The purpose of this study was to investigate the alterations in glenohumeral contact pressure associated with the placement and orientation of Latarjet or iliac crest bone graft augmentation and to compare the amount of glenoid bone reconstruction with two coracoid face...

background:chronic synovitis is one of the most important complications in haemophilic patients. rifampin is anantibiotic which its intra-articular injecion leads to destruction of the synovial membrane of haemophilic patientsmedically.materials and methods: between september 2003 and november 2005, we administered intra-articular rifampinin ١۶ haemophilic joints of ٨ haemophilic patients.resul...

Lesions of the glenoid labrum are a common cause of shoulder instability and a frequent finding in patients with shoulder pain. Management of these patients typically involves an attempt to avoid surgery through conservative treatment. However, there is currently a dearth of conservative options that promote labral healing. Regenerative injection therapies, including prolotherapy, have shown pr...

The goal of this study was to compare the accuracy of abduction-external rotation magnetic resonance arthrography (ABERMRA) with standard MRA in the diagnosis of intra-articular shoulder pathology.One hundred three consecutive patients undergoing preoperative direct MRA and subsequent arthroscopic examination were included in the study. Seventy-eight patients underwent standard MRA and 25 under...

INTRODUCTION:
 The most common dislocation presenting to emergency department is anterior shoulder dislocation. Posterior dislocations and inferior are rare. Dislocations of the mostly occur with position arm abducted externally rotated. This results in injury humeral head, labrum, capsuloligamentous structures glenoid. Such patients experience severe pain, therefore prompt reduction neces...