TY - JOUR
T1 - Total knee replacement in patients with significant femoral bowing in the coronal plane
T2 - A comparison of conventional and computer-assisted surgery in an asian population
AU - Huang, T. W.
AU - Hsu, W. H.
AU - Peng, K. T.
AU - Hsu, R. W.W.
PY - 2011/3
Y1 - 2011/3
N2 - We conducted a retrospective study to investigate the effect of femoral bowing on the placement of components in total knee replacement (TKR), with regard to its effect on re-establishing the correct mechanical axis, as we hypothesised that computer-assisted total knee replacement (CAS-TKR) would produce more accurate alignment than conventional TKR. Between January 2006 and December 2009, 212 patients (306 knees) underwent TKR. The conventional TKR was compared with CAS-TKR for accuracy of placement of the components and post-operative alignment, as determined by five radiological measurements. There were significant differences in the reconstructed mechanical axes between the bowed and the non-bowed group after conventional TKR (176.2° (SD 3.4) vs 179.3° (SD 2.1), p < 0.001). For patients with significant femoral bowing, the reconstructed mechanical axes were significantly closer to normal in the CAS group than in the conventional group (179.2° (SD 1.9) vs 176.2° (SD 3.4), p < 0.001). Femoral bowing resulted in inaccuracy when a conventional technique was used. CAS-TKR provides an effective method of restoring the mechanical axis in the presence of significant femoral bowing.
AB - We conducted a retrospective study to investigate the effect of femoral bowing on the placement of components in total knee replacement (TKR), with regard to its effect on re-establishing the correct mechanical axis, as we hypothesised that computer-assisted total knee replacement (CAS-TKR) would produce more accurate alignment than conventional TKR. Between January 2006 and December 2009, 212 patients (306 knees) underwent TKR. The conventional TKR was compared with CAS-TKR for accuracy of placement of the components and post-operative alignment, as determined by five radiological measurements. There were significant differences in the reconstructed mechanical axes between the bowed and the non-bowed group after conventional TKR (176.2° (SD 3.4) vs 179.3° (SD 2.1), p < 0.001). For patients with significant femoral bowing, the reconstructed mechanical axes were significantly closer to normal in the CAS group than in the conventional group (179.2° (SD 1.9) vs 176.2° (SD 3.4), p < 0.001). Femoral bowing resulted in inaccuracy when a conventional technique was used. CAS-TKR provides an effective method of restoring the mechanical axis in the presence of significant femoral bowing.
UR - http://www.scopus.com/inward/record.url?scp=79952260405&partnerID=8YFLogxK
U2 - 10.1302/0301-620X.93B3.25990
DO - 10.1302/0301-620X.93B3.25990
M3 - 文章
C2 - 21357956
AN - SCOPUS:79952260405
SN - 0301-620X
VL - 93 B
SP - 345
EP - 350
JO - Journal of Bone and Joint Surgery - Series B
JF - Journal of Bone and Joint Surgery - Series B
IS - 3
ER -