Patient-Specific CT-Based Instrumentation versus Conventional Instrumentation in Total Knee Arthroplasty: A Prospective Randomized Controlled Study on Clinical Outcomes and In-Hospital Data

Table 1

Patient demographics and preoperative limb deformities: a between-group comparison.

	PSI group; (Group I)	CI group; (Group II)	value
Gender: male/female	16/33	13/33	0.66
Operated side: left/right	21/28	20/26	0.99
Age [years]^#	66.1 ± 8.4	68.6 ± 9.9	0.33
Weight [kg]^#	82.0 ± 14.5	80.0 ± 15.1	0.52
Height [m]^#	1.7 ± 0.1	1.6 ± 0.1	0.87
BMI [kg/m²]^#	30.0 ± 4.6	29.6 ± 5.6	0.45
HKA	188.2 ± 7.0	188.9 ± 7.1	0.29

PSI: patient-specific instrumentation, CI: conventional instrumentation, SD: standard deviation, BMI: body mass index, and HKA: hip-knee-ankle angle.
^#Data presented as mean ± SD; positive values indicate varus alignment.