We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Total knee arthroplasty using trochlear groove as guide for position of femoral component in severe knee osteoarthritis.
- Authors
Gangyong Huang; Jun Xia; Siqun Wang; Yibing Wei; Jianguo Wu; Feiyan Chen; Jie Chen; Jingsheng Shi; Huang, Gangyong; Xia, Jun; Wang, Siqun; Wei, Yibing; Wu, Jianguo; Chen, Feiyan; Chen, Jie; Shi, Jingsheng
- Abstract
<bold>Background: </bold>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. <bold>Methods: </bold>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. <bold>Results: </bold>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. <bold>Conclusion: </bold>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.
- Subjects
TOTAL knee replacement; FEMORAL artery; OSTEOARTHRITIS treatment; PNEUMATICS; TOURNIQUETS; SURGERY; FEMUR surgery; PATELLA; FEMUR; ARTIFICIAL joints; COMPUTED tomography; KNEE diseases; LONGITUDINAL method; OSTEOARTHRITIS; OSTEOTOMY; ANATOMY
- Publication
BMC Surgery, 2016, Vol 16, p1
- ISSN
1471-2482
- Publication type
journal article
- DOI
10.1186/s12893-016-0148-z