The cruciate ligaments in total knee arthroplasty: a kinematic analysis of 2 total knee arthroplasties

• Published in: The Journal of arthroplasty Vol. 15; no. 5; pp. 545 - 550
• Main Authors: Stiehl, J B, Komistek, R D, Cloutier, J M, Dennis, D A
• Format: Journal Article
• Language: English
• Published: United States 01.08.2000
• Subjects: Anterior Cruciate Ligament - surgery; Arthroplasty, Replacement, Knee - methods; Biomechanical Phenomena; Fluoroscopy; Follow-Up Studies; Humans; Image Processing, Computer-Assisted; Knee Joint - physiology; Knee Joint - surgery; Knee Prosthesis; Movement; Posterior Cruciate Ligament; Prosthesis Design; Weight-Bearing
• ISSN: 0883-5403
• DOI: 10.1054/arth.2000.4638

In vivo weight-bearing fluoroscopic kinematic analysis using an interactive model fitting technique with 3-dimensional computer-aided design solid models was done using 16 anterior and posterior (bicruciate)-sparing and 6 posterior cruciate-sparing total knee arthroplasties (TKAs). All patients had a satisfactory clinical result with a minimum of 12 months' follow-up. The femorotibial contact position of TKAs started posterior to the midline in extension. Bicruciate TKAs revealed gradual posterior femoral rollback and limited anterior-posterior translation but remained posterior to the sagittal plane midline in all positions. Posterior cruciate-sparing TKAs began significantly posterior in extension, demonstrated progressive anterior translation with flexion, and had exaggerated medial condyle translation on deep knee bend. The posterior cruciate-retaining TKAs of this study had the most abnormal kinematic performance.