Total knee arthroplasty using trochlear groove as guide for position of femoral component in severe knee osteoarthritis
Autor: | Yibing Wei, Jingsheng Shi, Jun Xia, Gangyong Huang, Siqun Wang, Jianguo Wu, Feiyan Chen, Jie Chen |
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Rok vydání: | 2016 |
Předmět: |
Adult
Male musculoskeletal diseases medicine.medical_specialty medicine.medical_treatment Total knee arthroplasty Patellar tracking Prosthesis Osteoarthritis Trochlear groove Osteotomy Condyle Cohort Studies Young Adult 03 medical and health sciences 0302 clinical medicine medicine Humans Femur Femoral component Arthroplasty Replacement Knee Aged Aged 80 and over 030222 orthopedics business.industry Patella 030229 sport sciences General Medicine Middle Aged Osteoarthritis Knee Sulcus musculoskeletal system medicine.disease eye diseases Surgery medicine.anatomical_structure Female Knee osteoarthritis Knee Prosthesis Tomography X-Ray Computed business Research Article |
Zdroj: | BMC Surgery |
ISSN: | 1471-2482 |
Popis: | Background Apart from transepicondylar axis, the native femoral sulcus was also reported to be used as a guide for the femoral component position in total knee arthroplasty (TKA). However, it was not shown in patients with severe knee osteoarthritis. This study was conducted to compare the position of trochlear groove in patients with and without osteoarthritis, and to assess whether trochlear groove could be used as a guide for position of femoral component in TKA for severe knee osteoarthritis. Methods Total 50 severe knee osteoarthritis patients (Kellgren Lawrence grade 3 or 4) who underwent TKA were included. Meanwhile, 50 patients who underwent arthroscopic surgery without osteoarthritis were included as control. The distance from trochlear groove to the midpoint of a virtual anterior condyle osteotomy line (parallel to the posterior condyle line) (a–b) was recorded by radiological and surgical measurements. Midpoint of transepicondylar axis and trochlear groove were used as guide for placing prosthesis model in TKA, respectively. No-thumb test was performed to assess the patellar tracking. The position of femoral component was finally performed using trochlear groove as guide in TKA. Results Value of “a–b” was significantly different between osteoarthritic and control knees (P = 0.008). During the placement of prosthesis model, similar patellar tracking was detected between using midpoint of transepicondylar axis and trochlear groove as guide (P > 0.05). After placing femoral component using trochlear groove as guide, most patients obtained good patellofemoral congruence with pneumatic tourniquet inflated (n = 43) or deflated (n = 5), and good patellofemoral congruence was also obtained by lateral patellar retinaculum release in two patients. Conclusion Despite the shifting of trochlear groove caused by severe knee osteoarthritis, trochlear groove can be used as a guide for position of femoral component, with equivalent patellar tracking compared with transepicondylar axis. |
Databáze: | OpenAIRE |
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