Arthroscopic "Wallow" Procedure for Resection of Symptomatic Os Acromiale Pseudoarthrosis.

Os acromiale is a relatively common anatomic variant that can occasionally be associated with shoulder pain. Several surgical options to address a symptomatic os acromiale that has failed nonoperative treatment have been described. Published techniques, however, are often very invasive, technically challenging, and carry the risk of potential complications that can be difficult to manage. The technique presented here describes a relatively simple arthroscopic alternative, coined by the authors as the "Wallow technique" due to the fact that the arthroscopic shaver is used to rotate within and resect the os site, that results in complete resection of the os acromiale pseudoarthrosis and avoids the need for an open approach or the use of implants.

"Double-Row Rip-Stop" Technique for Arthroscopic Rotator Cuff Repair.

Rotator cuff repair depends on both the fixation strength of the chosen repair construct and the local healing response of the repaired tissue. Among a growing discussion surrounding the superiority of one surgical technique over another, the surgeon's ability to complete a rotator cuff repair with technical acuity in a timely manner remains paramount. Double-row repairs as well as rip-stop configurations have been proposed to limit failures found after arthroscopic rotator cuff repairs. Implementation of both techniques during arthroscopic shoulder surgery may represent a technical challenge for the average orthopaedist. The purpose of this article is to give simple instructions for reproduction of an arthroscopic double-row rip-stop repair for rotator cuff fixation.

Arthroscopic Management of Posterior Instability due to "Floating" Posterior Inferior Glenohumeral Ligament Lesions.

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 surgical technique for arthroscopic repair of a floating PIGHL lesion is described and demonstrated.