3D-Printed Patient-Specific Instrumentation Technique Vs. Conventional Technique in Medial Open Wedge High Tibial Osteotomy: A Prospective Comparative Study

Table 5

Clinical outcomes.

	3D-printed PSI	Conventional	value
Feasibility
Operation time of osteotomy (min)
Radiation exposures ()
Hospitalization (d)			n.s
Bone graft			n.s
Complications ()
Displaced (>2 mm) lateral hinge fracture	0	0	—
Undisplaced (<2 mm) lateral hinge fracture	0	2	—
Deep vein thrombosis	1	3	—
Infection	1	1	—
Hardware failure	0	0	—

Abbreviations: VAS: visual analogue score; n.s: not significant; 3D: three-dimensional; PSI: patient-specific instrumentation.