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Effect of minimally invasive removal of syndesmotic screw on mortise clear space after ankle fracture ;surgery
Author(s): 
Pages: 820-824
Year: Issue:  12
Journal: New Chinese Medicine

Keyword:  Syndesmotic screwRemovalAnkle mortise clear spaceAnkle;
Abstract: Objective To evaluate the effect of minimally invasive removal of syndesmotic screw up-on ankle mortise clear space and ankle joint stability after ankle fracture surgery. Methods Forty patients who underwent body surface landmark-assisted minimally invasive removal of syndesmotic screw and were well healed after ankle fracture surgery were recruited in this study. Body surface landmark-assisted minimally inva-sive removal of syndesmotic screw was performed at 8 to 12 weeks after ankle fracture surgery and the effect up-on mortise clear space was assessed in 40 cases. Results Stage I wound healing was achieved in 40 patients without postoperative complications of infection,breakage or slip of screw or difficulty of screw removal and syndesmotic recurrences. The time of full weight-bearing walk was 7 to 14 d after surgery. Forty patients were followed up for 8 to 26 months. The severity of pain was significantly alleviated at postoperative 1 month in all cases. The tibiofibular overlap distance (F=0.626,P=0.599),the tibiofibularclear space (F=1.023,P=0.385)and the medial clear space (F=1.983,P=0.132)did not significantly differ among before surgery, at postoperative 1 month,at the time of removal of fixation plate and the final follow-up. The mean visual ana-logue scale (VAS)score was 4.5 ±0.1 before surgery,significantly decreased to 1.0 ±0.1 at the final follow-up (P<0.008). American Orthopedic Foot and Ankle Society Score (AOFAS)was 69.6 ±0.9 before surger-y,significantly increased to 87.5 ±0.6 at the final follow-up (P<0.008). Conclusion At 8 to 12 weeks af-ter ankle fracture surgery,minimally invasive removal of syndesmotic screw exerts mild effect upon mortise clear space and ankle joint stability.
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