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Charles Rivière, Stefan Lazic, Loïc Villet, Yann Wiart, Sarah Muirhead Allwood, and Justin Cobb

more evenly sharing the loading between medial and lateral tibial plateaus. 1 All of these things aim to optimize long-term implant survivorship. Also, it aligns the extensor mechanism, which reduces the risk of patella instability. 2 , 3 Fig

E. Carlos Rodríguez-Merchán, Hortensia De la Corte-Rodríguez, Carlos A. Encinas-Ullán, and Primitivo Gómez-Cardero

. Possible autografts to be used are the hamstring (gracilis and semitendinosus) tendon, bone-patella tendon-bone (BPTB), and quadriceps tendon (with or without a distal bone block). These grafts can be obtained from the injured knee or from the contralateral

Ignacio Rodriguez, Matías Sepúlveda, Estefanía Birrer, and María Jesús Tuca

the position of the patella, since a high position would indicate a potential tibial tuberosity fracture ( Fig. 8 ). In a previous article, Pandya et al recommended the use of computer tomography (CT) for the preoperative evaluation of this type of

Jan Victor

ligament. One can argue whether it is wise to use a damaged structure as a reference for implant positioning. In most systems, the patella is dislocated at the time of using the technique of tensioned gaps. This dislocated patella certainly affects the

Michele Boffano, Stefano Mortera, and Raimondo Piana

Traumatol Arthrosc 1999 ; 7 : 192 - 196 . 16 Petrera M , Patella V , Patella S , Theodoropoulos J . A meta-analysis of open versus arthroscopic Bankart repair using suture anchors . Knee Surg Sports Traumatol

Sohail Nisar, Jeya Palan, Charles Rivière, Mark Emerton, and Hemant Pandit

-epicondylar or cylindrical axis) in the femur, about which the tibia flexes and extends; the transverse axis in the femur, about which the patella flexes and extends; and the longitudinal axis in the tibia, about which the tibia internally and externally rotates

Maurilio Marcacci, Luca Andriolo, Elizaveta Kon, Nogah Shabshin, and Giuseppe Filardo

Typical contusions related to spontaneously reduced lateral patellar dislocation. On axial fluid-sensitive sequence (T2 fat suppression) there is oedema in the medial patella (arrow), and in the anterior aspect of the lateral femoral condyle (dotted arrows

Theofilos Karachalios and George A. Komnos

relative relationship of the femur, the patella and the tibia at any flexion angle without the application of force to the knee joint. If you achieve this, at least in principle, there is a reduction of the incidence of stiffness and instability, which

Lucy C. Walker, Nick D. Clement, Kanishka M. Ghosh, and David J. Deehan

-extension gap without medial-lateral tightness or laxity. A well-tracking patella during full motion. Maximal flexion occurring with the patella reduced and without excessive rollback of the femur on the tibia. Correct rotational balance

Charles Rivière, Stefan Lazic, Oliver Boughton, Yann Wiart, Loic Vïllet, and Justin Cobb

patient-specific knee joint anatomy. This has been described as ‘biomechanically-friendly’. In order to optimize implant survivorship by reducing the risk of accelerated polyethylene wear, early implant loosening and patella instability, the recommended