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  • Title: Effectiveness of Headless Bioabsorbable Screws for Fixation of the Scarf Osteotomy.
    Author: Kim JS, Cho HK, Young KW, Lee SY, Kim JS, Lee K.
    Journal: Foot Ankle Int; 2016 Nov; 37(11):1189-1196. PubMed ID: 27672017.
    Abstract:
    BACKGROUND: Scarf osteotomy has been used in hallux valgus surgery due to its large fixation surface for screws and low postoperative complications. However, screws may cause skin irritation from their head, which may require an additional surgical procedure to remove. METHODS: This study included 115 patients (106 females and 9 males, 115 feet) who underwent hallux valgus correction with a scarf osteotomy using bioabsorbable screws between September 2010 and September 2012. Preoperative and postoperative 1-month and 1-year radiographic measurements, including intermetatarsal angle (IMA), hallux valgus angle (HVA), distal metatarsal articular angle (DMAA), proximal phalangeal articular angle (PPAA), and lateral translational distance (LTD), were obtained. American Orthopaedic Foot & Ankle Society (AOFAS) hallux/forefoot scores were used for patient satisfaction. RESULTS: Preoperative mean values of HVA, IMA, and PPA of 32.8 degrees, 14.6 degrees, and 7.52 degrees, respectively, improved to 10.7 degrees, 6.0 degrees, and 4.6 degrees, respectively at 1-year follow up (P < .05). The difference in LTD between the 1-month and 1-year follow-up was not statistically significant. AOFAS hallux/forefoot score improved from 69.1 to 96.1 at the 1-year follow up (P < .001). Complete screw absorption was not seen radiographically. Sixteen feet had complications reported. One patient complained of skin irritation over a small protrusion of the screw, and another patient had a foreign body reaction. There were 3 patients with neurologic injury from a popliteal block and 3 patients with dorsal cutaneous nerve symptoms. Four feet had metatarsal fracture during surgery. CONCLUSION: We found the scarf osteotomy using bioabsorbable screws to have satisfactory clinical and radiographic results with a low complication rate. LEVEL OF EVIDENCE: Level IV, case series.
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