Posterior-Stabilized TKA in Patients With Severe Genu Recurvatum Achieves Good Clinical and Radiological Results at 5-year Minimum Follow-Up: A Case-Controlled Study
| Autor: | Guillaume Mesnard, Axel Schmidt, Sébastien Lustig, Cécile Batailler, Camdon Fary, Elvire Servien |
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| Rok vydání: | 2020 |
| Předmět: |
musculoskeletal diseases
Genu recurvatum medicine.medical_specialty Knee Joint Total knee arthroplasty Knee deformity 03 medical and health sciences 0302 clinical medicine Medicine Humans Orthopedics and Sports Medicine In patient Range of Motion Articular Arthroplasty Replacement Knee 030222 orthopedics Tibia business.industry Case-control study Posterior stabilized Osteoarthritis Knee musculoskeletal system medicine.disease Surgery Radiological weapon Complication business Knee Prosthesis |
| Zdroj: | The Journal of arthroplasty. 36(9) |
| ISSN: | 1532-8406 |
| Popis: | Background Genu recurvatum is a rare knee deformity. Total knee arthroplasty (TKA) in severe preoperative recurvatum requires surgical adjustments. Few studies have assessed the clinical and radiological results of TKA in recurvatum. The aim was to compare the clinical and radiological outcomes, complications, and revision rates after posterior-stabilized TKA in severe recurvatum with those without recurvatum. Methods Between 1987 and 2015, 32 primary posterior-stabilized TKA were performed with a preoperative genu recurvatum greater than 10° and minimum follow-up of 60 months. In severe genu recurvatum, the extension gap needs to be decreased compared with flexion gap. To achieve this, the distal femoral cut is distalized, whereas the posterior femoral and tibial cuts are performed as usual. They were compared with 64 matched posterior-stabilized TKAs without recurvatum. The demographic data were similar between groups. The clinical and radiological outcomes, complications, and revision rates were assessed at the last follow-up. Results At a mean follow-up of 7.4 years ± 1.9, there was no significant difference in International Knee Score functional score (77.5 vs. 73.4; P = .50) and knee score (86.6 vs. 89.5; P = .37) between the recurvatum group and the control group, respectively. 6 patients had a postoperative recurvatum equal or superior to 10° in the recurvatum group (18.8%). There was no difference between both groups in radiological outcomes, complication, or revision rates. No instability was found in the recurvatum group. Conclusion Posterior-stabilized TKA with controlled distalization of the femoral component in the setting of severe preoperative genu recurvatum achieves good clinical and radiological outcomes at a minimum follow-up of 5 years and similar to TKA without preoperative recurvatum. Level of Evidence III. |
| Databáze: | OpenAIRE |
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