Large variation found in 3-D UKA alignment analysis for femoral, tibial components

Recently published results showed large variation in the rotational plane for both femoral and tibial components during 3-D unicompartmental knee arthroplasty component alignment analysis in the standing position, suggesting the importance of component positioning.

Recently published results showed large variation in the rotational plane for both femoral and tibial components during 3-D unicompartmental knee arthroplasty component alignment analysis in the standing position, suggesting the importance of component positioning.

Researchers used a biplanar X-ray imaging acquisition system to image 77 metal-backed fixed-bearing medial unicompartmental knee arthroplasties (UKAs; Zimmer) in 68 consecutive patients in the standing position. To determine component position and contact location, researchers imported the UKA models into a virtual imaging environment and registered the models with a component silhouette on an X-ray image. Researchers digitized anatomic bony landmarks of the lower limb for quantification of the bone alignment.

Source: Healio

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