A case of an atraumatic implant failure after primary rotating-hinge total knee arthroplasty.

Rotating-hinge knee implants are fully constrained knee prostheses commonly used for revision total knee arthroplasty. Nevertheless, rotating-hinge devices have been increasingly utilized in primary setting. Complications are inevitable in orthopedic surgery, however, implant breakage after RHK arthroplasty has been rarely described in medical literature. We present a rare case of 70-year-old Caucasian, male patient who suffered an atraumatic femoral stem breakage in a primary NexGen ® Rotating Hinge Knee (Zimmer-Biomet ® , Warsaw, IN, USA).

Short-term outcome trapeziectomy with ligament reconstruction and tendon interposition versus trapeziometacarpal prosthesis : a literature review.

Trapeziectomy with ligament reconstruction and tendon interposition and trapeziometacarpal prosthesis are two commonly used procedures for first carpometacarpal joint osteoarthritis. The purpose of this study is to compare the short-term outcome of trapeziectomy with ligament reconstruction and tendon interposition to trapeziometacarpal prosthesis. Pubmed, Cochrane library and science direct database were searched with adequate search terms. Used parameters were force, pain, mobility, functionality and complication. All papers describing short-term outcome of ligament reconstruction and tendon interposition or trapeziometacarpal prosthesis were included in this review. Trapeziometacarpal prostheses showed faster pain relief compared with trapeziectomy and ligament reconstruction and tendon interposition. Overall, there was a better strength in the trapeziometacarpal prosthesis group. A lack of information was found about the short- term functionality. The mobility recovers faster in the prosthesis group, although different scoring scales were used for measurement. We could confirm the faster pain relief in the prosthesis group and generally a faster recovery of strength and mobility. In the prosthesis group were more short-term complications. More studies are required to evaluate the short-term recovery of strength, the mobility, functionality and satisfaction.