Wrist arthroplasty with the trispherical total wrist prosthesis

Area of Science:

• Orthopedic Surgery
• Biomaterials Science

Background:

• Inflammatory arthritis significantly impacts wrist function and quality of life.
• Total wrist arthroplasty is a surgical option for managing severe wrist arthritis.

Purpose of the Study:

• To evaluate the clinical outcomes and long-term implant survival of the Trispherical total wrist prosthesis.
• To assess patient satisfaction following Trispherical total wrist arthroplasty.

Main Methods:

• Retrospective evaluation of 35 Trispherical total wrist arthroplasties in patients with inflammatory arthritis.
• Clinical assessment using the Hospital for Special Surgery (HSS) wrist scoring system.
• Analysis of implant survival rates in 67 consecutive Trispherical total wrist arthroplasties.

Main Results:

• Excellent or good clinical results were observed in 28 out of 35 arthroplasties (80%) at an average 9-year follow-up.
• Cumulative implant survival rates were 97% at 5 years and 93% at 10-12 years postoperatively.
• Patient satisfaction with the Trispherical prosthesis was reported as excellent.

Conclusions:

• The Trispherical total wrist prosthesis provides favorable long-term clinical results and implant survival in patients with inflammatory arthritis.
• The prosthesis design, enabling accurate restoration of the wrist's center of rotation, is attributed to the successful outcomes.
• Trispherical total wrist arthroplasty is a viable treatment option for inflammatory arthritis affecting the wrist.