![]() The tarsometatarsal joint is a multi-articular system composed of metatarsal bone, cuneiform bone, cuboid bone and the ligaments attached to them, which is essential for the function and stability of the mid-foot. Tightrope system in the treatment of purely ligamentous Lisfranc injuries can stabilize the tarsometatarsal joint and achieve satisfactory effect. No complications occurred during the operation. The Tightrope system was not removed and the foot obtained better biomechanical stability. There was statistically significant difference in the distance between the first and second metatarsal joint and VAS score at 3 months, 6 months, and the last follow-up when compared with preoperative values ( P < 0.05).Mean of postoperative AOFAS mid-foot scale and Maryland foot score were 92.4 ± 4.3, 94.1 ± 3.5, respectively. The average follow-up time was 20.5 months (range, 17–24). American orthopedic foot & ankle society (AOFAS) and Maryland foot score were recorded at the last follow-up. X-ray was performed regularly after operation to measure the distance between the first and second metatarsal joint and the visual analogue scale (VAS) score was used to evaluate pain relief. We retrospectively analyzed 11 cases with purely ligamentous Lisfranc injuries treated with the Tightrope system from 2016 to 2019, including 8 male and 3 female. This study evaluated the effect of using the Tightrope system to reconstruct the Lisfranc ligament for elastic fixation. There are several operative techniques for rigid fixation to solve this problem clinically. Purely ligamentous Lisfranc injuries are mainly caused by low energy damage and often require surgical treatment.
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