The effect of component malalignment on the clinical and radiological outcome of the Kinemax total knee replacement

• Published in: The knee Vol. 10; no. 1; pp. 55 - 60
• Main Authors: Bankes, M.J.K., Back, D.L., Cannon, S.R., Briggs, T.W.R.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.03.2003; Elsevier Limited
• Subjects: Aged; Aged, 80 and over; Alignment; Arthroplasty, Replacement, Knee - adverse effects; Arthroplasty, Replacement, Knee - methods; Bone Malalignment; Extramedullary; Female; Femoral; Follow-Up Studies; Humans; Intramedullary; Joint surgery; Knee; Knee Prosthesis; Male; Middle Aged; Osteoarthritis, Knee - diagnostic imaging; Osteoarthritis, Knee - surgery; Postoperative Period; Preoperative Care; Probability; Prostheses; Prosthesis Design; Prosthesis Fitting; Radiography; Registries; Retrospective Studies; Surgeon grade; Surgery; Tibial; Total knee replacement; Treatment Outcome; Alignment; Total knee replacement; Intramedullary; Tibial; Femoral; Extramedullary; Surgeon grade
• ISSN: 0968-0160; 1873-5800
• DOI: 10.1016/S0968-0160(02)00050-9

Component angles of 198 Kinemax total knee replacements were measured from standard short leg radiographs. An ideal tibio-femoral angle of between 4 and 10° of valgus was achieved in 64.6% of patients. After an average follow-up of 6.5 years (range 4.5 to 9.5), there was no significant difference between knees in acceptable and suboptimal alignment in terms of pre- and post-operative knee and function scores and prevalence of radiolucent lines. Varus placement of the tibial component was significantly more common by trainee surgeons ( P<0.001).