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Comparison of two total knee prostheses on the incidence of patella clunk syndrome. International Orthopaedics (SICOT) 26, 48–51 (2002). https://doi.org/10.1007/s00264-001-0316-2
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Comparison of two total knee prostheses on the incidence of patella clunk syndrome
Ip, D., Wu, W. & Tsang, W.Knee
The patella clunk syndrome is not an uncommon complication, particularly after posterior-stabilized (PS) total knee arthroplasty. The present study was a consecutive unselected series comparing the incidence of the patella clunk syndrome amongst two comparable groups of elderly patients with knee arthritis implanted with the Insall-Burstein (IB II) total knee system and the newer NexGen Legacy total knee prosthesis. While 7.5% of patients in the PS IB II group developed patella clunk syndrome, none occurred in the NexGen group (P=0.05). We believe the difference is due mainly to a change in the design of the prosthesis, especially the more posterior intercondylar box and femoral cam of the NexGen femoral component.
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