Abstract
Posterolateral instability is the most frequent form of both acute and chronic elbow instability. Joint incongruity due to posterolateral unlocking leads to shear and compression stress of the internal aspect of the humeroulnar joint. We carried out long-term analysis of patients with posterolateral elbow instability in order to determine whether, in addition to improving their symptoms, reconstruction of the lateral collateral ligament complex may play a protective role against the development of post-traumatic osteoarthritis. We hypothesized that ligament reconstruction according to the technique of O'Driscoll stabilizes the elbow and also limits the development of osteoarthritis in the long term. Patients with symptomatic posterolateral instability of the elbow and who underwent ligament reconstruction according to the technique of O'Driscoll from January 1995 to December 2010 were identified and retrospectively included for 2 follow-up evaluations at a mean of 5 and 14years. Fourteen elbows in 14 patients were included. All had a negative lateral pivot shift test and none reported a new episode of instability. Two patients (14%) had osteoarthritis. The 2 radiographic evaluations showed no progression of osteoarthritis. Osteoarthritis developed in 33% of patients with intra-articular fracture. In simple dislocations, pre-existing osteoarthritic lesions were stabilized and there were no new cases of osteoarthritis. Elbow ligament reconstruction according to the technique of O'Driscoll gives effective posterolateral stabilization and appears to protect against progression to osteoarthritic degeneration in the long term. In the absence of associated lesions, it prevents the development of osteoarthritis or the worsening of pre-existing osteoarthritis.
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