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Efficacy and Reliability of Percutaneous Gigli Saw Osteotomy in Midfoot Surgery: A Cadaver Study
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Background: Midfoot osteotomy is often used in the surgical treatment of foot deformities. The percutaneous Gigli saw osteotomy (PGSO) technique has many advantages compared with known osteotomy techniques. We aimed to show the efficacy and reliability of the PGSO technique in the midfoot of fresh frozen cadavers without using an image intensifier.
Methods: Four mini-incisions were performed on the dorsomedial, dorsolateral, plantar medial, and plantar lateral regions of the midfoot. Subperiosteal tunnels were then opened with a thin bone elevator, and the four incisions were combined with each other. The Gigli saw was tied to suture material and passed through the tunnels. The PGSO was performed in the midfoot of 12 feet of the cadaver specimens without using an image intensifier. Cadaver specimens were dissected, and injured structures were noted.
Results: The mean ± SD (range) cadaver age was 81.16 ± 10.38 years (65–93 years) and weight was 60.86 ± 12.39 kg (49.8–81.6 kg). All of the osteotomies were adequate as planned in the cuboid-cuneiform level and all of them were complete osteotomy .Incomplete osteotomy was not observed in any cadaver specimens. In one specimen, a complete injury of the peroneal tendons (peroneus longus and brevis) was detected. In another specimen, an incomplete tibialis anterior tendon injury was detected. There was no iatrogenic neurovascular injury in the specimens.
Conclusions: The PGSO technique is recommended for use even by inexperienced surgeons owing to its minimal risk of soft-tissue injury, provision of a complete osteotomy line, and easy application with limited incisions.
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