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Table 5 Comparison of clinical and patient-reported outcomes between SV and MV subgroups in more and less osteophytes groups. Varus defined by LDFA

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 = 18)MV (n = 29)p-valueSV (n = 22)MV  41)p-value
ROMpreoperative (degree)99.4 ± 20.9104.0 ± 22.70.49113.9 ± 20.0115.9 ± 19.50.71
 postoperative (degree)123.1 ± 13.6120.7 ± 13.50.56122.7 ± 12.8122.2 ± 12.40.87
 angle difference (degree)23.1 ± 19.316.8 ± 17.80.278.9 ± 16.15.7 ± 20.00.5
KSpreoperative39.7 ± 11.940.5 ± 15.30.8548.5 ± 13.950.3 ± 14.40.65
 postoperative95.4 ± 6.897.5 ± 3.50.2597.6 ± 3.496 ± 5.40.17
 improvement rate (%)92.5 ± 10.896.0 ± 5.780.2395.7 ± 5.386.3 ± 23.80.03*
FSpreoperative31.8 ± 21.545.2 ± 13.20.03*45.1 ± 19.341.6 ± 18.40.5
 postoperative70.8 ± 23.380 ± 13.70.1481.4 ± 18.174.3 ± 16.40.14
 improvement rate (%)59.0 ± 26.365.5 ± 23.40.4172.3 ± 26.149.4 ± 32.70.005*
KOOS-preoperative45.4 ± 18.744.8 ± 21.70.9248.7 ± 21.847.7 ± 15.10.86
Symptompostoperative81.1 ± 15.480.9 ± 15.30.9884.5 ± 11.277.9 ± 17.60.07
 improvement rate (%)63.4 ± 28.965.3 ± 27.00.8363.1 ± 31.253.9 ± 35.10.31
KOOS-preoperative45.4 ± 15.941.3 ± 20.70.4540.5 ± 18.839.7 ± 17.50.89
Painpostoperative86.2 ± 17.488.4 ± 11.50.6490.6 ± 8.283.3 ± 14.60.01*
 improvement rate (%)76.9 ± 29.580.3 ± 18.70.6781.8 ± 18.069.3 ± 26.00.03*
KOOS-preoperative59.8 ± 18.259.7 ± 15.70.9863.9 ± 19.357.3 ± 16.90.2
ADLpostoperative83 ± 18.487.7 ± 10.10.3390.1 ± 8.384.1 ± 12.20.02*
 improvement rate (%)59.4 ± 36.168.1 ± 26.20.3972.2 ± 29.355.9 ± 32.40.06
KOOS-preoperative25.9 ± 19.525.9 ± 12.40.9926.8 ± 15.226.4 ± 14.50.92
QOLpostoperative66.5 ± 26.766 ± 22.60.9574.9 ± 18.559.5 ± 19.40.004*
 improvement rate (%)57.6 ± 29.054.6 ± 28.40.7463.5 ± 28.944.6 ± 24.80.02*
  1. SV Strong varus. LDFA> 82; MV Mild varus. LDFA< 82; LDFA Lateral distal femoral angle, ROM Range of motion, KS Knee score, FS Function score, KOOS Knee injury and osteoarthritis outcome score. *Significantly different, p < 0.05