Review of Dual Mobility Trapeziometacarpal Prosthesis in Patients with Rhizarthrosis: Our Experience in a Study of 66 Cases. Low Risk of Dislocation and Few Complications

Abstract

Introduction Trapeziometacarpal prosthesis implantation occurs for more than 50 years. Its disadvantage includes potential osteolysis, loosening, or dislocation. The development of dual mobility trapeziometacarpal prosthesis aimed to reduce the dislocation risk.

Material and Methods We analyzed 66 cases of dual mobility trapeziometacarpal prostheses implantation from 2019 to 2022, evaluating functionality, mobility, pain, and complication results.

Results The sample included 76.7% women, and the mean age of our patients was 62.4 years. Pain measured per the visual analog scale (VAS) scale decreased from 8.1 points preoperatively to 1.5 postoperatively. In 92.6% of the patients, the Kapandji index one month after surgery ranged from 9 to 10. In addition, the Quick Disabilities of the Arm, Shoulder, and Hand (DASH) score decreased from 46.2 to 9.8 points. There were two cases of cup loosening and one trapezium fracture in the first month after surgery. From one month to one year, we had one case of stem loosening. These complications required revision surgery. We did not observe any cases of dislocation.

Conclusions The dual mobility trapeziometacarpal prosthesis is a surgical option with good functional, mobility, and survival outcomes for patients with rhizarthrosis amenable to surgery.

Keywords

osteoarthritis - trapeziometacarpal prosthesis - dual mobility - thumb - dislocation

Ethical Responsibilities

Protection of people and animals

The authors declare the procedures followed the ethical standards of the pertinent human experimentation committee, the World Medical Association, and the Declaration of Helsinki.

Data Confidentiality

The authors declare that they have followed their institutional protocols regarding the publication of patient data.

Right to Privacy and Informed Consent

The authors have obtained informed consent from the patients, subjects, or both referred to in the article.

This document is in the possession of the corresponding author.

Publication History

Received: 15 July 2023

Accepted: 09 October 2023

Article published online:
05 December 2023

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