Abstract
Background: Arthroplasty is gaining more and more popularity in the treatment of osteoarthritis (OA) of the metatarsophalangeal I joint (MTP1). The aim of our study was to evaluate the early and long-term objective clinical and radiographic results, as well as the subjective results, of MTP1 arthroplasty in comparison to MTP1 arthrodesis among patients with OA and a valgus deformity of their MTP 1 joint. Methods: Patients with OA MTP1 were examined before surgery and in the 5-year period after surgery. The inclusion criteria for the study were OA of the MTP1 joint and a non-axial position of the toe in valgus between 20 and 40 degrees. Prostheses were created for the patients with higher demands for mobility of their MTP 1 joint and arthrodesis was carried out for those with lower expectations. The treatment outcomes were assessed by clinical examination, radiography, the AOFAS scale, the SEFAS scale, and using patient-related outcome measures (PROM). Results: A total of 39 people, 37 women and 2 men, aged 55 to 67 years old (average, 61 years old) participated in the study. During the follow-up period, there were no complications in the form of infection or a loosening of the implant after both arthroplasty and arthrodesis. The follow-up examination 60 months after the surgery showed an improvement in scores (>20 points) on both the AOFAS and SEFAS scales. All patients, after surgery, reported reduced pain. Conclusions: The use of a silicone prosthesis in the surgical treatment of degenerative changes in the MTPI joint, with appropriate indications and excluding cases with large hallux valgus, gives better results than arthrodesis.
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