A distinctive and consistent pattern of degenerative change was seen in 560 acromioclavicular joints from dry bone skeletons of subjects over 40 years of age. An appreciation of this characteristic configuration is helpful at operation or when introducing a needle into the joint.

A 53-year old man presented with chronic left shoulder pain, unresponsive to anti-inflammatory treatment. There was no history of injury or chronic overuse. Radiography showed degenerative changes of the acromioclavicular joint, an acromion type 1, and the presence of coracoclavicular joint. CT scan confirmed the presence of a joint between the clavicle and the coracoid process with degenerativ...

Massive acromioclavicular joint (ACJ) cysts are an extremely rare cause of shoulder impairment and with limited consensus in its management. We present the first published case report of a patient with a massive ACJ cyst treated with a reverse total shoulder replacement with minimal ACJ excision arthroplasty.

Background: This study was conducted to evaluate the clinical outcomes of acromioclavicular joint (ACJ) fixation with hook plate (HP) and continuous loop double endobutton fixation (CLDE) in treatment of the acute acromioclavicular joint (ACJ) dislocation. Methods: In this retrospective study, 8 patients with HP and 9 patients with CLDE fixations were compared for acute ACJ dislocations. ...

A survey regarding upper-extremity steroid injection practices was distributed to all active members of the American Society for Surgery of the Hand (ASSH) and American Shoulder and Elbow Surgeons (ASES) using SurveyMonkey. Response rates for the ASSH and ASES were 26% and 24%, respectively. The potency-adjusted dose of steroid injected for common hand and wrist injections ranged from 0.375 to ...

BACKGROUND Joint injections and aspirations are used to reduce joint pain and decrease inflammation. The efficacy of these injections is diminished when they are placed inadvertently in the wrong location or compartment. The purpose of this study was to determine whether the use of varying sites or imaging techniques affects the rate of accurate needle placement in aspiration and injection in t...