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The Journal of Bone and Joint Surgery (American) 62:513-519 (2008)
© 2008 The Journal of Bone and Joint Surgery, Inc.

Hinged Total Knee Arthroplasty*

Frank C. Hui, M.D.{dagger} and Robert H. Fitzgerald, JR., M.D.{dagger}

From the Mayo Clinic and Mayo Foundation, Rochester

Analysis of an on-going prospective study of seventy-seven hinged total knee arthroplasties in sixty-seven patients revealed that most patients had improvement in function, although major complications occurred in eighteen knees (23.4 per cent). These complications included sepsis, loosening, patellar tendon rupture, peroneal palsy, and patellar subluxation. Eight of nine knees with deep sepsis required removal of the prosthesis, and three of sixteen knees with patellar pain required realignment of the quadriceps. When prosthetic failure occurred, salvage of a functional extremity was difficult. Hinged total knee arthroplasty is not without its problems, and a cautious approach to its use is indicated. Whenever possible, a moderately constrained replacement arthroplasty should be considered.


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