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 3

Comparison of clinical outcomes.

		PSI group; ()	CO group; ()	value
Operative duration (min)				0.014
Radiation exposures (n)				<0.001
Intraoperative blood loss (mL)				0.003
With and without BMP use/; Bone grafting ()		10 : 6	11 : 12	0.516
Neural injury ()		0	0	—
Lateral hinge fracture ()		0	2	—
Infection ()		0	0	—
Incisional exudation ()		1	0	—
American Knee Society Score (AKSS)
Clinical; AKSS	Preop			0.616
	Postop (3 months)			0.042
	Postop (6 months)			0.040
	Last follow-up			0.654
Functional; AKSS	Preop			0.870
	Postop (3 months)			0.034
	Postop (6 months)			0.625
	Last follow-up			0.835

(PSI: patient-specific instrumentation. CO: conventional operation. Preop: preoperative. Postop: postoperative).