[Rupture in the palm of a flexor tendon in a young man with osteogenesis imperfecta].

Flexor tendon rupture in the palm of the hand is very infrequent. It usually occurs in association with an underlying pathological condition. We report a case of hand tendon rupture in a patient with osteogenesis imperfecta (OI). This disease is typically characterised by brittle bones but other tissues rich in collagen, such as tendons, may also be involved. The ruptured tendon was diagnosed one month post-injury and was treated by tendon graft. Six months later, tenolysis was performed and one year post-injury flexion was still limited at the distal interphalangeal joint. Few cases of tendon lesions and OI have been reported in the literature. Rupture occurs at the bony insertion and the outcome is good the poor outcome in our case could be due to alteration of the collagen tissue of the tendon.