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  • Indirect fixation of the third tarsometatarsal joint for high-energy Lisfranc injury

    ObjectiveTo evaluate the effectiveness of indirect fixation of the 3rd tarsometatarsal joint in the treatment of high-energy Lisfranc injury.MethodsBetween February 2015 and February 2019, 15 patients with high-energy Lisfranc injury were treated. There were 12 males and 3 females with an average age of 44.8 years (range, 29-73 years). The average time from injury to admission was 8.8 hours (range, 2-28 hours). According to Myerson classification, there were 6 cases of type A, 4 cases of type B2, 1 case of type C1, and 4 cases of type C2; 8 cases were open injury. The 3rd tarsometatarsal joint was injured in all patients, including intact intermetatarsal ligament in 7 cases, the 2nd-3rd intermetatarsal ligament injury in 6 cases, the 3rd-4th intermetatarsal ligament injury in 1 case, and the 2nd-3rd-4th intermetatarsal ligament injury in 1 case. Among them, the 3rd tarsometatarsal joint was not fixed directly and indirectly fixed by stabilized the 2nd and 4th tarsometatarsal joints in 13 cases. The 3rd tarsometatarsal joint was fixed with Kirschner wire in 2 cases for 1 patient had complete injury of the intermetatarsal ligament and the other 1 had comminuted fracture of the base of the 3rd metatarsal. The reduction of fracture and dislocation was evaluated by X-ray films, focusing on the re-displacement of the 3rd tarsometatarsal joint. The effectiveness was evaluated by American Orthopaedic Foot and Ankle Society (AOFAS) score and visual analogue scale (VAS) score.ResultsThirteen of the 15 patients were followed up 12-26 months, with an average of 15.6 months. One case had superficial infection of the incision and healed after symptomatic treatment; the other incisions healed by first intention. At last follow-up, the VAS score was 0-3 (mean, 1.1) and the AOFAS score was 70-99 (mean, 87.5). Twelve patients achieved anatomical reduction and 1 patient had increased talar-first metatarsal angle and the mild forefoot abduction. During the follow-up, no loss of reduction of the 3rd tarsometatarsal joint was found, while the spontaneous fusion of the joint was observed in 2 patients.ConclusionIn high-energy Lisfranc injury, as long as the intermetatarsal ligament is not completely destroyed and the bony structure of the tarsometatarsal joint is intact, the 3rd tarsometatarsal joint does not need to be fixed routinely, the stability of the joint can be obtained indirectly by fixing the adjacent tarsometatarsal joint.

    Release date:2021-04-27 09:12 Export PDF Favorites Scan
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