Disorders of the acromioclavicular (AC) joint quite often necessitate distal clavicle resection (DCR). Arthroscopic DCR is favored because of it is mini-invasive and convenient to treat concomitant intraarticular or subacromial lesions. In previous reports, arthroscopic DCR was performed through the anterior portal with the patient in beach chair position. However, when the patient is in the lateral decubitus position, it is inconvenient to perform DCR through the anterior portal. Thus, we introduce a special DCR technique through the supraspinatus fossa (SSF) portal. The critical point of this technique is viewing the acromioclavicular joint through the routine posterior portal, creating the SSF portal at the anterior edge of the scapular spine and the same medial-to-lateral level to the AC joint, and enough removal of the posterior edge of the distal clavicle. We believe the introduction of this technique will provide a special technical option when DCR is needed.
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