Article Document Academic Article Information Content Entity Continuant Continuant Journal Article Entity Entity Generically Dependent Continuant 2025-05-07T15:16:19 RDF description of Scapular spine dimensions and suitability as a glenoid bone graft donor site - http://repository.healthpartners.com/individual/document-rn13877 2022-02-21T22:48:57.408-06:00 Bones Shoulder Orthopedics public 23646 <p>BACKGROUND: Current structural bone graft options used for glenoid augmentation in glenohumeral instability have known drawbacks. The scapular spine may be a possible alternative graft choice, but its dimensions and anatomy are not fully reported. HYPOTHESIS: The scapular spine's harvestable graft dimensions will be similar to harvestable dimensions of the coracoid and iliac crest. STUDY DESIGN: Descriptive laboratory study. METHODS: The scapular spine, coracoid, and iliac crest dimensions were recorded and compared bilaterally in 50 patients with 3-dimensional computed tomography imaging. The portion of the scapular spine with the largest harvestable dimensions was quantified and its location defined. Measurements were independently taken by 2 investigators and averaged for the final result. RESULTS: The scapular spine has 81.5 mm of harvestable length and a "flare" located approximately 49.6 mm lateral to the medial scapular border, where the widest harvestable cross section is located (mean harvestable dimensions: 10.9-mm height, 11.5-mm width). Mean coracoid dimensions were 24-mm length, 14.2-mm height, and 10.6-mm width. Mean iliac crest width was 14.7 mm. In sum, 96% of scapular spines, 85% of coracoids, and 100% of iliac crests exceeded minimum dimensions of 8 mm x 8 mm x 20 mm. The coronal radius of curvature of the glenoid was significantly different from the corresponding plane of all measured structures. CONCLUSION/CLINICAL RELEVANCE: The scapular spine has dimensions similar to the coracoid and iliac crest in the majority of patients and is therefore appropriate for further investigation as a potential graft choice in glenohumeral instability. A harvest location 49.6 mm lateral to the medial scapular border will provide the largest cross-sectional graft while avoiding the acromial base.<p> Radiography Retrospective Studies American Journal of Sports Medicine Surgery Sports document-rn13877 10.1177/0363546519861965 Transplantation Scapular spine dimensions and suitability as a glenoid bone graft donor site 47 14533 10