Is standard total knee arthroplasty with lateral femoral overhanging a cause of anterior knee pain? A randomized controlled trial

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Table 1

Baseline patient characteristics.

Variables	Gp1: Gender-specific knee prosthesis (n = 30 knees)	Gp2: unisex knee prosthesis (n = 30 knees)	p-value
Age (years)^*	68.85 ± 6.53 (56–77)	66.73 ± 6.24 (55–78)	0.64
Site (left/right)	26/4	27/4	0.73
BMI (kg/m²)^*	26.16 ± 4.02 (20–41.62)	25.92 ± 3.74 (21.40–42.22)	0.51
Varus deformity(°)^*	8.4 ± 3.02 (0–20)	8.2 ± 3.24 (0–20)	0.43
Flexion contracture (°)^*	12 ± 3.67 (5–30)	10 ± 3.67 (5–25)	0.35
Genu recurvatum (°)^*	0.41 ± 2.32 (5–15)	0.44 ± 2.46 (5–20)	0.81
KSS (point)^*	38 ± 2.45 (28–52)	39.77 ± 2.32 (28–52)	0.23
ROM (°)^*	120 ± 12.21 (90–120)	122 ± 12.87 (90–120)	0.73
Incidence of AKP (%)	83.33% (25/30)	80% (24/30)	0.76
VAS for AKP (point)^*	2.13 ± 1.90 (0–6)	2.21 ± 2.01 (0–8)	0.35
Patellar tilt (°)^*	2.65 ± 2.73 (0–8)	2.78 ± 2.81 (0–8)	0.31
Patellar shift (mm)^*	1.86 ± 1.47 (0–6)	1.74 ± 1.51 (0–7)	0.36

KSS: knee society score; ROM: range of motion; BMI: body mass index; AKP: anterior knee pain; VAS: visual analog scale.

Value are expressed as a mean ± SD, with ranges in parentheses.

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