Shoulder instability after a posterior glenoid rim fracture is rare and potentially difficult pathology to treat. Operative techniques often involve a large dissection to view the fragments resulting in local soft tissue injury. Internal fixation is often achieved with interfragmentary screws; however, this may not be possible with small or multifragmentary fracture patterns. We describe an art...

The accuracy of measuring angulation of stable proximal humerus fractures using the axillary lateral projection was investigated. A closing wedge osteotomy with apex anterior angulation was performed on two cadaveric humeri to simulate a stable surgical neck fracture. One specimen was fixed at 30 degrees angulation and the other at 55 degrees. Axillary radiographs were taken with each specimen ...

Head-splitting fractures occur as a result of violent compression of the head against the glenoid; the head splits and the tuberosities may remain attached to the fragments or split and separate. Isolated humeral head-splitting fractures are rare injuries. Favorable results with osteosynthesis can be difficult to achieve because of the very proximal location of the head fracture and associated ...

Temporomandibular joint ankylosis is inability to open mouth due to either a fibrous or bony union between the head of the condyle and the glenoid fossa. It is most commonly associated with trauma, local or systemic infection, tumors or systemic disease such as ankylosing spondylitis, rheumatoid arthritis, or psoriasis. Odontogenic keratocyst as defined by World Health Organization are known fo...

INTRODUCTION: The stability of the glenohumeral joint (GHJ) is dependent upon passive stabilizing mechanisms such as the glenoid labrum and long head of the biceps (LHB) tendon. The labrum improves GHJ stability by increasing the glenoid concavity, and the contiguous structure of the labrum and LHB tendon may increase tension on the labrum during superior humeral translations which may contribu...

We performed an RSA (Anatomical Shoulder (TM) Inverse/Reverse; Zimmer) on a 73-year-old, right-handed man who had radiographic evidence of an irreparable rotator cuff tear and early rotator cuff arthropathy. The patient was immobilized in a sling for 6 weeks postoperatively. The sling was removed 3 times daily for shoulder exercises. At 4 weeks postoperatively, the patient reported good pain re...

The Neer and Hawkins impingement signs are commonly used to diagnose subacromial pathology, but the anatomy of these maneuvers has not been well elucidated in vivo. This 3-dimensional open magnetic resonance imaging study characterized shoulder anatomy and rotator cuff impingement in 8 normal volunteers placed in the Neer and Hawkins positions. Subacromial and intraarticular contact of the rota...

BACKGROUND Glenoid component survival is critical to good long-term outcomes in total shoulder arthroplasty. Optimizing the fixation environment is paramount. The purpose of this study was to compare two glenoid cementing techniques for fixation in total shoulder arthroplasty. METHODS Sixteen cadaveric specimens were randomized to receive peg-only cementation (CPEG) or full back-side cementat...

Background Recurrent shoulder dislocation and anterior instability are most commonly attributed to pathology of the capsulolabral complex with the presence of bony loss at the humeral and glenoid surfaces. Unassessed bone loss has been a cause of failure of primary soft tissue procedures or recurrence of symptoms, despite adequate address of soft tissue pathology. Purpose To study the anthrop...