JOURNAL ARTICLE

Displaced Neer Type IIB distal-third clavicle fractures-Long-term clinical outcome after plate fixation and additional screw augmentation for coracoclavicular instability

Thomas M Tiefenboeck, Sandra Boesmueller, Harald Binder, Adam Bukaty, Michael M Tiefenboeck, Julian Joestl, Marcus Hofbauer, Roman C Ostermann
BMC Musculoskeletal Disorders 2017 January 23, 18 (1): 30
28114982

BACKGROUND: Unstable Neer Type IIB fractures require meticulous surgical treatment. Thus, the aim of this study was to present long-term outcomes after plate fixation and minimally invasive coracoclavicular (CC) stabilization using screw fixation.

METHODS: A consecutive series of patients with unstable Neer Type IIB displaced clavicle fractures, treated by open reduction and internal fixation (ORIF) with a plate and additional screw fixation for coracoclavicular ligament instability, was reviewed in order to determine long-term clinical and radiological outcome.

RESULTS: Seven patients, six males and one female, with a mean age of 37 ± 8 years (median: 36 years; range, 28-51 years), were evaluated. At latest follow-up, after a mean of 67 months (range, 11-117 months), patients presented with the following mean scores: DASH: 0.57, ASES: 98.81, UCLA: 34.29, VAS: 0.43, Simple Shoulder Test: 11.57. However, two complications were observed: one case of implant loosening and one non-union. There were no differences observed between the CC distances comparing postoperative X-rays to those in final follow-up. In 25% of our patients early postoperative complications occurred. In all patients reoperation was necessary to remove the implanted screw.

CONCLUSION: The results of the present study indicate that the treatment of Neer Type IIB lateral clavicle fractures with ORIF using a plate and additional CC screw fixation, leads to satisfying clinical and radiological outcomes in the long-term. However, considering an early postoperative complication rate of 25% and a 100% rate of secondary surgery due to removal of the CC screw does not seem to justify this technique anymore.

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