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J Foot Ankle Surg. 2009 Nov-Dec;48(6):620-30. doi: 10.1053/j.jfas.2009.07.013. Epub 2009 Sep 15.

Transosseous fixation of the distal tibiofibular syndesmosis: comparison of an interosseous suture and endobutton to traditional screw fixation in 50 cases.

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Sarasota Orthopedic Associates, 2750 Bahia Vista, Sarasota, FL 34239, USA.


In this prospective cohort study, we compared screw fixation to interosseous suture with endobutton repair of the syndesmosis. Outcomes of interest included preoperative and postoperative modified American Orthopedic Foot and Ankle Society (AOFAS) hindfoot and ankle scores, and Short Form-12 health status scores, as well as radiographic measurements and the time to full weight bearing. Mean averages and ranges were calculated for numeric variables, and outcomes for each fixation group were compared statistically with Student t test. The cohort consisted of 50 patients; 25 in the screw fixation group and 25 in the interosseous wire with endobuttons group. The mean patient age was 34.68 (15 to 55) years in the interosseous suture endobutton group and 36.68 (17 to 74) years in the screw group, and the mean follow-up was 10.78 (range 6 to 12) months in the interosseous suture endobutton group, and 8.20 (range 4 to 24) months in the screw group. No statistically significant differences (P < or = .05) were noted in regard to age, follow-up duration, time to postoperative weight bearing, or subjective outcome scores between the fixation groups; although statistically significant improvements were noted in the subjective scores for each fixation group between the preoperative and postoperative measurements. The results of this study indicate that the interosseous suture with endobuttons is a reasonable option for repair of ankle syndesmotic injuries, and may be as effective as traditional internal screw fixation.



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