Modified osteodesis procedure using the mini TightRope system for the correction of hallux valgus with full weight-bearing protocol: our experience with an historical report

Background: Hallux valgus is a common pathology in the orthopedic daily practice. More than 100 techniques of surgical correction are currently described in the literature, mostly focused on osteotomies. Procedures based on soft tissues balancing are actually less described. Materials and methods: Between May and October 2019, 20 patients, 16 females and 4 males, underwent surgery using mini TightRope® system. All were addressed to preoperative radiological and clinical assessment through the AOFAS-hallux scale and radiographs. Follow-up was performed postoperatively with weight-bearing radiographs and AOFAS-hallux score at 5 weeks, 3 months and 6 months. All patients were postoperatively allowed to immediately full weight-bear wearing a stiff sole orthopedic shoe (Donjoy, Podalux™). Results: The results showed an improvement in the functional score (average AOFAS from 53.5 to 87 at 6 months) and a decrease in IMA and HVA in the direct postoperative with 9.2° and 28.3°, respectively. The reductions were maintained through 6 months and compared with the preoperative condition a reduction of 6.0° and 7.3°, respectively, were observed. Conclusions: Correction of hallux valgus with the modified osteodesis procedure with the mini TightRope system with Full Weight-Bearing can be considered effective, safe and reliable.