endobutton

Endobutton + Interference screw +/- staple or post

Advantage

- endobutton simple yet strong fixation

- endobutton eliminates problem if blow out back wall

Epidemiology

Dominant arm of middle aged men

- between 40 and 60

Aetiology

Sudden dramatic event

- sporting / weightlifting injury

- resisting heavy extension load

Pathology

Degenerative changes seen on histology

Types

Complete

- retracted / rupture of lacertus fibrosis

- minimally retracted