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Table 3 Comparison of clinical and patient-reported outcomes between SV and MV subgroups in more and less osteophytes groups. Varus defined by FTA

From: Predicting clinical outcomes after total knee arthroplasty from preoperative radiographic factors of the knee osteoarthritis

  More osteophytes (n = 47)Less osteophytes (n = 63)
  SV (n = 23)MV (n = 24)p-valueSV (n = 16)MV (n = 47)p-value
ROMpreoperative (degree)97.0 ± 22.9107.3 ± 20.00.11114.1 ± 20.2115.5 ± 19.50.8
 postoperative (degree)120.7 ± 15.8122.5 ± 10.90.65123.4 ± 11.1122.0 ± 12.90.67
 angle difference (degree)23.7 ± 20.114.8 ± 15.90.19.4 ± 13.96.0 ± 20.10.46
KSpreoperative37.4 ± 15.443 ± 12.00.1843.5 ± 13.651.4 ± 13.90.08
 postoperative96.3 ± 6.097.0 ± 4.10.6197.7 ± 3.296.2 ± 5.20.19
 improvement rate (%)94.3 ± 9.694.9 ± 6.660.8195.7 ± 4.7787.9 ± 22.00.03*
FSpreoperative39.1 ± 18.140.9 ± 18.10.7440.4 ± 14.843.7 ± 19.80.52
 postoperative79.6 ± 13.273.3 ± 22.30.2579.4 ± 16.276.2 ± 17.70.49
 improvement rate (%)67.8 ± 19.958.1 ± 28.00.1970.7 ± 24.153.9 ± 33.50.05
KOOS-preoperative42.5 ± 22.047.4 ± 18.70.4246.6 ± 21.248.6 ± 16.60.75
Symptompostoperative83.8 ± 14.778.1 ± 15.40.2183.8 ± 11.679.0 ± 17.00.23
 improvement rate (%)72.3 ± 21.457.1 ± 32.60.0767.7 ± 19.253.9 ± 36.60.07
KOOS-preoperative42.4 ± 19.343.4 ± 18.80.8542.7 ± 18.139.1 ± 17.80.52
Painpostoperative89.2 ± 12.085.8 ± 15.70.4192.3 ± 7.283.8 ± 14.00.003*
 improvement rate (%)81.3 ± 18.276.6 ± 27.70.5184.7 ± 14.770.3 ± 25.60.01*
KOOS-preoperative60.3 ± 14.659.3 ± 18.60.8461.3 ± 13.259.2 ± 19.20.64
ADLpostoperative89.8 ± 9.981.9 ± 16.30.0690.4 ± 7.184.8 ± 12.20.03*
 improvement rate (%)75.4 ± 22.054.3 ± 34.10.02*75.5 ± 13.257.4 ± 34.90.005*
KOOS-preoperative24.9 ± 14.026.9 ± 17.00.6721.4 ± 12.928.1 ± 14.90.11
QOLpostoperative74.0 ± 20.358.4 ± 25.20.03*67.4 ± 18.964.1 ± 21.00.56
 improvement rate (%)66.4 ± 25.045.7 ± 28.10.01*61.6 ± 20.848.1 ± 28.80.06
  1. SV Severe varus. FTA > 185; MV: mild varus. FTA < 185; FTA Femorotibial angle, ROM Range of motion, KS Knee score, FS Function score, KOOS Knee injury and osteoarthritis outcome score. *Significantly different, p < 0.05