The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement

T. Matsumoto; R. Kuroda; S. Kubo; H. Muratsu; K. Mizuno; M. Kurosaka

doi:10.1302/0301-620X.91B4.21862

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Knee

The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement

T. Matsumoto
R. Kuroda
S. Kubo
H. Muratsu
K. Mizuno
M. Kurosaka

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The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement

Matsumoto T, Kuroda R, Kubo S, Muratsu H, Mizuno K, Kurosaka M. The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement. J Bone Joint Surg Br. 2009;91-B(4):475-480. doi:10.1302/0301-620X.91B4.21862

Matsumoto, T., et al. “The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement.” The Journal of Bone & Joint Surgery British Volume, vol. 91-B, no. 4, 2009, pp. 475-480., https://doi.org/10.1302/0301-620X.91B4.21862

Matsumoto, T., Kuroda, R., Kubo, S., Muratsu, H., Mizuno, K., & Kurosaka, M. (2009). The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement. The Journal of Bone & Joint Surgery British Volume, 91-B(4), 475-480. https://doi.org/10.1302/0301-620X.91B4.21862

Matsumoto, T., Kuroda, R., Kubo, S., Muratsu, H., Mizuno, K. and Kurosaka, M. (2009) “The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement.” The Journal of Bone & Joint Surgery British Volume, 91-B(4), pp. 475-480. Available at: https://doi.org/10.1302/0301-620X.91B4.21862

Matsumoto, T., R. Kuroda, S. Kubo, H. Muratsu, K. Mizuno, and M. Kurosaka. “The intra-operative joint gap in cruciate-retaining compared with posterior-stabilised total knee replacement.” The Journal of Bone & Joint Surgery British Volume 91-B, no. 4 (2009): 475-480. https://doi.org/10.1302/0301-620X.91B4.21862

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Abstract

We have developed a new tensor for total knee replacements which is designed to assist with soft-tissue balancing throughout the full range of movement with a reduced patellofemoral joint. Using this tensor in 40 patients with osteoarthritis we compared the intra-operative joint gap in cruciate-retaining and posterior-stabilised total knee replacements at 0°, 10°, 45°, 90° and 135° of flexion, with the patella both everted and reduced.

While the measurement of the joint gap with a reduced patella in posterior-stabilised knees increased from extension to flexion, it remained constant for cruciate-retaining joints throughout a full range of movement. The joint gaps at deep knee flexion were significantly smaller for both types of prosthetic knee when the patellofemoral joint was reduced (p < 0.05).

Correspondence should be sent to Dr T. Matsumoto; e-mail: mastun@m4.dion.ne.jp

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