The Functional Outcome of Hallux Metatarsophalangeal Joint Arthrodesis Using Hallux Intramedullary Fusion Device

Functional outcome of first metatarsophalangeal joint (MTPJ) arthrodesis using intramedullary implant was reviewed in retrospective series of 12 patients who had MTPJ arthritis. The outcome measures were improvements seen in VAS for pain and AOFAS scores recorded pre-operatively and post-operatively at the time of achieving complete union. VAS for pain improved from mean of 7.5 pre-operative to 1.8 post-operative (p < 0.001). AOFAS Score improved from mean of 35.58 pre-operative to 80.91 post-operative (p < 0.001). The fusion rate was 100 percent and mean time needed for fusion was 9.6 weeks. Only one patient had malunion which was acceptable to patient and was not revised. The fusion using intramedullary intra-osseous Hallux Fusion implant is a promising technique with good functional outcome and low complications.