Overview
It is a randomized, prospective, single-blind study of two treatment techniques for rhizarthrosis. The patients are divided into two groups: one in which a Maia trapeziometacarpal prosthesis is implanted, and the other in which the standard technique of trapeziectomy and tenosuspension plasty is performed according to the Burton-Pellegrini technique.The follow-up of the patients is one year, and functionality (measured with the Quick Dash test) and pain (measured with the VAS scale) are compared throughout this period.This study has a sample size of 62 patients, 31 per group. Other secondary variables are also evaluated, such as strength and mobility of the thumb trapeziometacarpal joint (measured with the Kapandji index).
Eligibility
Inclusion Criteria:
- Rizarthrosis grade I, II, III
Exclusion Criteria:
- Rizarthrosis grade IV
- Severe osteoporosis
- Metals allergy
- Previous surgical interventions related
- Malformations in the articular zones that difficult the implant placement