TY - JOUR
T1 - Lateral unicondylar knee arthroplasty (UKA)
T2 - Contemporary indications, surgical technique, and results
AU - Ollivier, Matthieu
AU - Abdel, Matthew P.
AU - Parratte, Sébastien
AU - Argenson, Jean Noël
PY - 2014/2
Y1 - 2014/2
N2 - Unicompartmental femoro-tibial osteoarthritis usually affects the medial compartment of the knee, but in 10 %, the lateral compartment is primarily involved. Femoral osteotomy is attractive to avoid TKA in younger patients with low-grade unicompartmental osteoarthritis and a valgus deformity. However, only limited functional results can be expected for patients with Ahlback grade 2 or greater osteoarthritis. Moreover, because of previous skin incisions and hardware removal, TKA after femoral osteotomy remains a complex procedure with poor functional results. Unicompartmental knee arthroplasty for both the medial and the lateral compartments has been performed since the 1970s. In a patient with involvement of only one compartment, a medial or a lateral UKA can provide a quicker recovery and enhanced function when compared to TKA. In addition, it preserves bone stock and can be "easily" revised by a TKA. Technical improvements, combined with strict patient selection, have resulted in ten year survivorships greater than 90 %. However, lateral UKA is technically more challenging than medial UKA due to the lower number of indications, as well as the functional anatomy of the lateral compartment. The goals of this article are to present up-to-date information concerning indications, patients' selection, surgical technique and results of lateral compartment UKA.
AB - Unicompartmental femoro-tibial osteoarthritis usually affects the medial compartment of the knee, but in 10 %, the lateral compartment is primarily involved. Femoral osteotomy is attractive to avoid TKA in younger patients with low-grade unicompartmental osteoarthritis and a valgus deformity. However, only limited functional results can be expected for patients with Ahlback grade 2 or greater osteoarthritis. Moreover, because of previous skin incisions and hardware removal, TKA after femoral osteotomy remains a complex procedure with poor functional results. Unicompartmental knee arthroplasty for both the medial and the lateral compartments has been performed since the 1970s. In a patient with involvement of only one compartment, a medial or a lateral UKA can provide a quicker recovery and enhanced function when compared to TKA. In addition, it preserves bone stock and can be "easily" revised by a TKA. Technical improvements, combined with strict patient selection, have resulted in ten year survivorships greater than 90 %. However, lateral UKA is technically more challenging than medial UKA due to the lower number of indications, as well as the functional anatomy of the lateral compartment. The goals of this article are to present up-to-date information concerning indications, patients' selection, surgical technique and results of lateral compartment UKA.
KW - Indication
KW - Lateral
KW - Results
KW - Technique
KW - Unicompartimental knee arthroplasty
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U2 - 10.1007/s00264-013-2222-9
DO - 10.1007/s00264-013-2222-9
M3 - Article
C2 - 24337799
AN - SCOPUS:84894574650
SN - 0341-2695
VL - 38
SP - 449
EP - 455
JO - International Orthopaedics
JF - International Orthopaedics
IS - 2
ER -