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PERCUTANEOUS, MINIMAL INVASIVE STABLE FIXATION OF METATARSAL V AVULSION AND JONES FRACTURES



Abstract

The avulsion fracture of the V-th metatarsal and Jones fractures often show delayed and non-union. The tension belt osteosynthesis shows often soft tissue problems due to the thin soft tisshe covering. A new minimal invasive method with the 3,5mm XXS nail and the clinical results are presented.

Percutaneously the fracture is reduced with a K-wire as a joy stick. This or if the direction needed is different a second K-wire as guide is introduced and with a canulated 3,5 mm drill the place for the nail is prepared. Proximal and distal to the fracture one threaded wire locking and fracture compression through the nail (proximal longitudinal holes) are performed.

77 patients with a XXS nail fixation of MT V fractures were treated from July 1999 to Jan.2006. Clinical and radiological re-examination at 1 to 6 years were performed. The AOFAS was 22 pre- and 96 postoperatively. No pseudarthrosis but in 53 patients implant removal was done in part due to local discomfort. This was strictly correlated to the length of the threaded wires to the bone surface. 95% reached pretrauma activity levels. Satisfaction was 9 from 10 points

The XXS nails allows a percutaneous stable fixation of the avulsion and Jones fractures of the V-th metatarsus. The complication rate is low.

Correspondence should be addressed to: EFORT Central Office, Technoparkstrasse 1, CH – 8005 Zürich, Switzerland. Email: office@efort.org