VLAD VERINGA, WILHELM FRIEDL, NORIN FORNA, ANDREI IVAN, NINA FILIP, BOGDAN PUHA CONSTRAINED ROTATING HINGE PROSTHESES IN SEVERE HAEMOPHILIC KNEE OSTEOARTHRITIS The purpose of this experimental study is to present the design and biomechanical characteristics of cemented total knee prostheses type rotating-hinge RT-PLUSŪ (Smith&Nephew), as well as to evaluate their use in severe haemophilic knee arthropathy with major bone damage, ligamentous lesions, axial deviations and muscle retractions. We retrospectively evaluated 5 patients with severe haemophilic arthropathy with an average age of 48.5years. The functional results are good, with a significant improvement of range of motion (ROM) and pain relief resulting in a much better life quality. We did not have any stem loosening or any other complications except 2 wound healing problems which were treated successfully. The authors recommend this type of arthroplasty in severe haemophilic knee arthropathy or in any primary knee osteoarthritis with severe bone loss or any kind of ligamentous lesions.
Keywords: haemophilic arthropathy, rotating-hinge prostheses, knee arthroplasty, major bone damage, range of motion