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PERCUTANEOUS REMOVAL OF METALWORK AROUND ANKLE: OUR EXPERIENCE WITH FIRST 12 CASES



Abstract

Up to 75% of patients develop metalwork related problems following ankle fracture fixation and require further open surgery to remove them. This second procedure can lead to significant morbidity. To minimise these complications, we developed a technique, for removing the metalwork percutaneously. This technique was used in 12 patients with metalwork problems related to malleolar implants. The majority of problems occurred with the distal fibular plate and the screws.

One stab incision was placed mid way between every two screws so that two screws could be removed though one incision. The plate was stripped from the distal fibula using a narrow osteotome and extracted through the distal or proximal stab wound. Lag screws were also removed through an anterolateral stab incision. When we were unable to palpate the screw head, we used a guide wire under image intensifier to locate the screw head and railroaded a cannulated screwdriver over the wire to lock into the head of the screw. Medial malleolar screws were removed in a similar fashion. The technique was undertaken as day case surgery. No complications were encountered. All patients remained symptom-free postoperatively.

We conclude that percutaneous removal of metalwork around ankle joint is a safe and effective technique, allowing the patient to quickly regain their preoperative level of activity.

The abstracts were prepared by Mr J. L. Barrie. Correspondence should be addressed to Mr J. L. Barrie, BOFSS Editor, Department of Orthopaedic Surgery, Blackburn Royal Infirmary, Blackburn, Lancashire BB2 3LR.