Reconstrucción de labrum acetabular bilateral en hipoplasia labral con aloinjerto cadavérico
Abstract
The acetabular labrum is a fibrocartilaginous structure analogous to the menisci, glenoid labrum, or triangular fibrocartilage. It fulfills different biomechanical functions, such as: joint sealing, joint stability, resistance to translation, pressure distribution, etc. In 2003 it was described that femoroacetabular impingement and labral injury is one of the causes of hip osteoarthritis. There are multiple classifications for labral lesions, however the MAHORN classification includes the hypoplastic labrum in its type II. The literature defines a hypoplastic acetabular labrum when its width is ≤5 mm, and it can be primary (anatomical variant) or secondary (iatrogenic due to previous debridement).
There is a wide spectrum in the treatment of labral lesions, which mainly depends on the size of the labrum, the pattern of the lesion, the characteristics of the tissue and the affected area; from debridement to labral reconstruction in order to preserve the normal biomechanical function of the hip and avoid the development of osteoarthritis in the long term.
The case of a 28-year-old male patient is described below, with a history of bilateral mixed-type femoroacetabular impingement and bilateral hypoplastic acetabular labrum, who underwent primary reconstruction of the right labrum with peroneus longus cadaveric allograft and left labrum with Achilles tendon cadaveric allograft, obtaining a favorable clinical and functional outcome.
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