Table II.

Complications types and frequency in robotic-assisted versus conventional manual unicompartmental knee arthroplasty.

Complication	R-UKA, n (%)	C-UKA, n (%)
Aseptic loosening	4 (19)	9 (23.1)
Postop knee pain with/without stiffness or swelling	9 (42.9)	3 (7.7)
Limb malalignment	0 (0)	10 (25.6)
Myocardial infarction	0 (0)	9 (23.1)
Implant failure	4 (19)	4 (10.3)
Deep haematoma	1 (4.8)	1 (2.6)
Infection	1 (4.8)	1 (2.6)
Postop cellulitis	1 (4.8)	1 (2.6)
Acute urinary retention	1 (4.8)	0 (0)
Perforated peptic ulcer	0 (0)	1 (2.6)
Total	21 (100)	39 (100)

C-UKA, conventional manual unicompartmental knee arthroplasty; R-UKA, robotic-assisted unicompartmental knee arthroplasty.