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SUTURE-ENDOBUTTON FIXATION OF DISTAL TIBIO-FIBULAR DIASTASIS: EARLY FUNCTIONAL RESULTS



Abstract

Between October 2006 and September 2007, eight consecutive patients with syndesmotic diastasis of the ankle had Tight Rope suture –endobutton fixation. We present our early results following this fixation. There were 3 males and 5 females with a mean age of 42 years (range 21 – 67). All were followed up for a mean of 7 months. Five patients had right side involvement. Majority were twisting injuries. These patients were compared with a cohort group (10 patients) who had diastasis screw fixation for similar fractures during the same period.

Results: The mean post operative Olerud & Molander ankle subjective score was 86 points. The tourniquet time was significantly less in endobutton group compared to the diastasis screw group(mean of 56 minutes vs. 72 minutes). There was some difference in time to mobilisation between the two groups (mean of 10 days). The endobutton group patients were able to return to work and leisure activities earlier (mean of 4 weeks) compared to the diastasis group. Range of motion was similar in both groups. There were fewer complications in both groups with superficial infection and stiffness being the most common. Both groups were satisfied with the fixation.

Advantages of Tight rope fixation: The tourniquet time was reduced; there was no need for 2nd operation with its attendant risks. Earlier mobilisation was possible leading to early return to work and leisure activities.

We recommend the use of this new suture endobutton fixation for ankle diastasis with promising early functional results. Further prospective studies are needed to evaluate this new type of fixation device.

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