Radiographic and Geometric Anatomy of the Scapula

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Abstract
In an effort to study anatomic parameters of the scapula that may be of clinical importance, scapulae were harvested from cadavers and stripped of their soft tissues. For each scapula, three roentgenograms then were obtained: a Y-scapular view, an axillary lateral view, and a glenoid fossa (or true anteroposterior) view. Computed tomographic pneumoarthrograms and randomly selected anteroposterior chest roentgenograms of skeletally mature adults were studied also to measure further roentgenographic parameters of the normal scapula. The geometric anatomy of the scapula is of fundamental importance in the pathomechanics of rotator cuff disease, total shoulder arthroplasty, and recurrent shoulder dislocation. This study presents in detail the exact geometry of scapula anatomy, giving precise figures for distances, angles, and radii of curvature of the scapula. All results then are discussed in terms of their clinical relevance to the above problems.

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