Patellar malalignment treatment in total knee arthroplasty

Gasparini, Giorgio and Familiari, Filippo and Ranuccio, Francesco (2013) Patellar malalignment treatment in total knee arthroplasty. Joints, 1 (1). pp. 10-17. ISSN 2282-4324

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Abstract

The patella, with or without resurfacing, plays a fundamental role in the success of a total knee arthroplasty (TKA). Patellofemoral joint complications are due to problems related to the patient, to the surgical technique, or to the design of the components. Patellar tracking is influenced by several factors: a severe preoperative valgus, the presence of pre-existing patellofemoral dysplasia, the design of the femoral component, the surgical approach, the Q angle, the mechanical alignment of the limb, the tightness of the lateral retinaculum, the positioning of the patellar component in the proximal-distal and medial-lateral directions, the patella height, the patella (native or resurfaced) thickness, the size of the femoral and the tibial components, and the alignment and rotation of the components. Several factors are crucial to prevent patellar maltracking in TKA: the use of an anatomical femoral component, a meticulous surgical technique, careful dynamic intraoperative assessment of patellar tracking, and, if necessary, the achievement of an adequate lateral release.

Item Type:	Article
Uncontrolled Keywords:	patellofemoral joint, total knee arthroplasty, alignment
Subjects:	600 Tecnologia - Scienze applicate > 610 Medicina e salute (Classificare qui la tecnologia dei servizi medici) > 617 Rami vari della medicina; Chirurgia > 617.5 Medicina regionale; Chirurgia regionale
Depositing User:	Chiara D'Arpa
Date Deposited:	04 Nov 2014 17:27
Last Modified:	04 Nov 2014 17:27
URI:	http://eprints.bice.rm.cnr.it/id/eprint/10058

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