gms | German Medical Science

Objective: To evaluate the pain, strength and mobility arches in the trapeziometacarpal joint in patients undergoing MAIA Prosthesis (Group Lepine, France) placement by the same hand surgeon from January 1, 2015 to June 30, 2018

Methods: A retrospective study of case reports was carried out, taking all the cases opered by the same hand surgeon in which trapeziometacarpal MAIA prostheses (Group Lepine, France) were placed.

The patients were evaluated before the surgery with the VAS scale and the grip strength with a pulse dynamometer, after the surgery and with a follow-up of up to 3 years we evaluated the result again and compared it with the same measures of the contralateral hand.

Results: Four patients were operated performing the arthroplasty, all with grade III rhizarthrosis according to the Eaton-Glickel classification, all cases underwent total arthroplasty with ball and socket type prostheses with dorsal joint approach. All cases were a dominant hand.

The 4 patients improved their strength achieving 80% of the grip strength in relation to the contralateral side, the mobility arcs compared to the non-operated side reached 90% in all of them, all patients reported pain relief. No complications were reported.

Conclusion: the MAIA prosthesis (Lepin Group, France) is an adequate surgical option for the treatment of Rizarthrosis in patients with grade III classification that achieves adequate pain relief and functional mobility.