Functional Outcome of Modified Weaver Dunn Technique for Acromioclavicular Joint Dislocation

BACKGROUND: The debate about the ideal surgical procedure for acromioclavicular joint (ACJ) dislocation is still unresolved and newer techniques are being evolved continuously. The present study evaluates functional outcome of ACJ reconstruction using the modified Weaver Dunn procedure. MATERIALS AND METHODS: 35 patients (26 males, 9 females) with ACJ dislocation, between the age group of 18–48 years (mean age 31 years), were operated using modified Weaver Dunn procedure at our center from May 2005 to June 2010. The dominant side was involved in 25 patients (22 right, 13 left). The mean period from the time of injury to the surgery was 14 days (range 4–26 days). All the patients were assessed with Oxford shoulder score and the time required to return to preinjury level was recorded. RESULTS: At the mean followup of 95 months (range 72–120 months), the mean Oxford Shoulder Score improved from 25 ± 7.2 to 43 ± 6.9. 85% (30 out of 35) patients had satisfactory results, while 15% (5 out of 35) had mild shoulder dysfunction using this scoring system. Five patients had radiological evidence of Grade 2 ACJ subluxation. Out of these five patients, two developed ossification around the coracoclavicular ligament. Three patients had intermittent mild pain without any functional disability, and one had a moderate restriction of shoulder movements. CONCLUSION: ACJ reconstruction, using the modified Weaver Dunn procedure in ACJ dislocation, is a reproducible procedure and provides a good functional outcome.