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Trauma

OUTCOME OF OPEN REDUCTION AND INTERNAL FIXATION OF VANCOUVER TYPE B FRACTURES AROUND A CEMENTED TAPERED POLISHED STEM

Scottish Committee for Orthopaedics and Trauma (SCOT)



Abstract

Vancouver B fractures around a cemented polished tapered stem (CTPS) are often treated with revision arthroplasty. Results of osteosynthesis in these fractures are poor as per current literature. However, the available literature does not distinguish between fractures around CTPS from those around other stems.

The aim of our study was to assess the clinical and radiological outcome of open reduction and internal fixation in Vancouver B fractures around CTPS using a broad non-locking plate.

Patients treated with osteosynthesis between January 1997 and July 2011 were retrospectively reviewed. All underwent direct reduction and stabilisation using cerclage wires before definitive fixation with a broad DCP. Bicortical screw fixation was obtained in the proximal and distal fragments. We defined failure of treatment as revision for any cause.

101 patients (42 men and 59 women, mean age 79) were included. 70 had minimum follow-up of 6 months. 63 of these went on to clinical and radiological union. Three developed infected non-union. 7 had failure of fixation. Lack of anatomical reduction was the commonest predictor of failure followed by inadequate proximal fragment fixation and infection. 14 patients dropped at least 1 mobility grade from their preoperative status.

This is the largest series of a very specific group of periprosthetic fractures treated with osteosynthesis. Patients who develop these fractures are often frail and “high risk” for major revision surgery. We recommend osteosynthesis for patients with Vancouver B periprosthetic fractures around CTPS provided these fractures can be anatomically reduced and adequately fixed.