TY - JOUR
T1 - Hybrid Total Knee Arthroplasty: A3-to 6-Year Outcome Analysis
AU - Hsu, Robert Wen-Wei
AU - Tsai, Yao-Haung
AU - Huang, Tsung-Jen
AU - 張, 娟娟
PY - 1998
Y1 - 1998
N2 - We retrospectively analyzed the outcomes of hybrid total knee
arthroplasty (TKA) with Miller Galante I (MG I) prostheses in 113
consecutive patients (140 knees). The mean follow-up period was 4.8 years
(range 3.2-6.6). There were 135 cases of osteoarthritis and five of
rheumatoid arthritis. The average age of patients at the time of surgery
was 62.6 years. The Hospital for Special Surgery knee score along with
radiographs were used to evaluate preoperative and postoperative knee
status, and the Cybex isokinetic test was used to assess muscle strength
at the final follow-up. The average knee score improved from 64 points
preoperatively to 90 points postoperatively (p<0.05). The mean motion arc
of the knee improved from 108° preoperatively to 116° at the final
evaluation, A total of 122 knees were pain free on walking and 130 knees
were completely pain free at rest. A total of 134 knees achieved good to
excellent clinical results, The radiographic results showed that the
mechanical axis of the lower extremity was realigned from a mean of 12
° varus preoperatively to a mean of 1° varus postoperatively. No
obvious radiolucent zones were found on the lateral view of the femoral
components in 60.7% of the knees, or on the anteroposterior or lateral
views around the tibial components in 49.3% and 82.9% of knees,
respectively. The Cybex isokinetic test at the final follow-up
examination revealed that the hamstring/quadriceps peak torque ratio was
0.8 at a speed of 60° per second and 0.96 at 180° per second, indicating
that quadriceps muscle strength did not recover to within the range of
healthy subjects. There were 23 (16.4%) complications, including
polyethylene wear of patellar components (14), patellofemoral
maltracking (4), septic loosening (2), aseptic loosening (2), and
superficial infection (1). Revision surgery improved the functional
outcomes in all of these knees, Based on our experience, we do not
recommend the use of the MG I prosthesis in total knee arthroplasty (TKA)
because of the high rate of patellar complications. Strengthening of the
quadriceps must be emphasized in postoperative rehabilitation. Hybrid
fixation might be a useful alternative fixation mode in TKA procedures.
AB - We retrospectively analyzed the outcomes of hybrid total knee
arthroplasty (TKA) with Miller Galante I (MG I) prostheses in 113
consecutive patients (140 knees). The mean follow-up period was 4.8 years
(range 3.2-6.6). There were 135 cases of osteoarthritis and five of
rheumatoid arthritis. The average age of patients at the time of surgery
was 62.6 years. The Hospital for Special Surgery knee score along with
radiographs were used to evaluate preoperative and postoperative knee
status, and the Cybex isokinetic test was used to assess muscle strength
at the final follow-up. The average knee score improved from 64 points
preoperatively to 90 points postoperatively (p<0.05). The mean motion arc
of the knee improved from 108° preoperatively to 116° at the final
evaluation, A total of 122 knees were pain free on walking and 130 knees
were completely pain free at rest. A total of 134 knees achieved good to
excellent clinical results, The radiographic results showed that the
mechanical axis of the lower extremity was realigned from a mean of 12
° varus preoperatively to a mean of 1° varus postoperatively. No
obvious radiolucent zones were found on the lateral view of the femoral
components in 60.7% of the knees, or on the anteroposterior or lateral
views around the tibial components in 49.3% and 82.9% of knees,
respectively. The Cybex isokinetic test at the final follow-up
examination revealed that the hamstring/quadriceps peak torque ratio was
0.8 at a speed of 60° per second and 0.96 at 180° per second, indicating
that quadriceps muscle strength did not recover to within the range of
healthy subjects. There were 23 (16.4%) complications, including
polyethylene wear of patellar components (14), patellofemoral
maltracking (4), septic loosening (2), aseptic loosening (2), and
superficial infection (1). Revision surgery improved the functional
outcomes in all of these knees, Based on our experience, we do not
recommend the use of the MG I prosthesis in total knee arthroplasty (TKA)
because of the high rate of patellar complications. Strengthening of the
quadriceps must be emphasized in postoperative rehabilitation. Hybrid
fixation might be a useful alternative fixation mode in TKA procedures.
KW - 混合式全膝關節成形術
M3 - Journal Article
SN - 0929-6646
VL - 97
SP - 410
EP - 415
JO - Journal of the Formosan Medical Association
JF - Journal of the Formosan Medical Association
IS - 6
ER -