Table 2.

Postoperative data

	Group A (34 knees) (UKR)	Group B (34 knees) (CA-TKR)	T-test P value
Surgical time	51.5 min (range: 36–75) SD 9.5	108.8 min (range: 80–132) SD 13.5
Hospital stay	5.1 days (range: 3–7) SD 1.08	8.2 days (range: 4–16) SD 2.85
Postoperative deformity (HKA angle)	177.4° varus (range: 175–182) SD 2.0	179.3° varus (range: 177–182) SD 1.2
Postoperative KS score	80.58 (range: 70–100) SD 4.9	78.9 (range: 70–87) SD 4.59	0.06
Postoperative functional score	83.5 (range: 73–100) SD 9.0	78.79 (range: 59–90) SD 7.6	0.01
Postoperative GIUM score	78 (range: 67–89) SD 4.77	73.02 mo (range: 65–85) SD 4.74	0.02
GIUM results distribution	26 normal (76.4%) 8 almost normal (23.6%)	24 normal (70.5%) 10 almost normal (19.5%)

UKR: unicompartmental knee replacement; CA-TKR: computer-assisted total knee replacement; HKA angle: hip-knee-ankle angle; SD: standard deviation; KS score: Knee Society score; GIUM score: Italian UKR Users Group