Comparison of Clinical and Radiological Outcomes between Calibratable Patient-Specific Instrumentation and Conventional Operation for Medial Open-Wedge High Tibial Osteotomy: A Randomized Controlled Trial

Table 1

Demographic characteristics of the two groups.

	PSI group; ()	CO group; ()	value
Age and years			0.074
Sex (male : female)	6 : 10	10 : 13	0.752
Side (right : left)	10 : 6	7 : 16	0.059
BMI (kg/m^2)			0.823
Kellgren–Lawrence grade (I:II:III)	1 : 4 : 11	5 : 3 : 15	—
WBL (weight-bearing line) ratio (%)			0.598
HKA (hip-knee-ankle angle) (°)			0.321
MPTA (medial proximal tibial angle) (°)			0.468
PTSA (posterior tibial slope angle) (°)			0.062
Insall–Salvati index			0.109

(PSI: patient-specific instrumentation. CO: conventional operation. BMI: body mass index).