Vega-Gutiérrez AE, Gómez-Pérez MG

Language: Spanish
References: 23
Page: 136-142
PDF size: 801.66 Kb.

ABSTRACT

Background: lesion of the upper posterolateral part of the humeral head due to compressive fracture is known as Hill-Sachs lesion; it occurs when the humeral head luxates and impacts on the anterior glenoid edge. This lesion is important because it may contribute to recurrent anterior luxations of the shoulder.
Objective: to evaluate the characteristics of the Hill-Sachs lesion by magnetic resonance imaging and the incidence of associated lesions.
Material and method: a retrospective observational study. Magnetic resonance studies performed at Hospital Ángeles del Pedregal in the period from February 2012 through August 2013 were reviewed. Only cases described with Hill-Sachs lesion in the final report were included.
Results: 16 patients were included, 15 men and 1 woman, between 17 and 65 years of age (mean 32.6 years). Fifteen patients (93.7%) had associated lesion of the anterior labrum, 10 (62.5%) lesion of a rotator cuff muscle, 4 (25%) lesion of the middle glenohumeral ligament, and 3 (18%) another kind of associated fracture.
Discussion: luxation of the shoulder is the most common luxation in the body on account of its wide range and combinations of motion. It is difficult to determine the clinical importance of Hill-Sachs lesion, but our primary aim was to determine if the lesion is a cause of subsequent glenohumeral instability. Use of the T2 sequence with fatty saturation is very helpful to detect bone edema in acute lesions and the T1 sequence to evaluate bone lesions.
Conclusion: Hill-Sachs lesion is a predisposing factor for glenohumeral instability. Magnetic resonance allows it to be studied with high structural detail, which in turn favors evaluation of lesions of the capsulolabral and ligamentary complex.

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