Arthroscopy combined with unicondylar knee arthroplasty for treatment of isolated unicompartmental knee arthritis: A long-term comparison

Table 1 Comparison of the patients' data between groups A and B

Characteristic	Group A	Group B	t/Z/X2	P
Number of UKA	60	58	0.416	0.519
Bilateral surgeries	6	7
Age (yr)	61.2 ± 8.4	63.0 ± 8.1	1.169	0.245
Gender (Male/Female)	12/48	19/39	2.478	0.115
Side (Left/Right)	21/39	27/31	1.631	0.212
Height (cm)	160 (156-163)	160 (156-167)	1.190	0.234
Weight (kg)	69.0 (63.0-75.8)	70.0 (64.5-78.3)	0.989	0.323
Body mass index (kg/m²)	27.1 ± 3.2	27.2 ± 3.5	0.167	0.868
Etiology (OA/Post-traumatic arthritis)	57/3	55/3	0.142	0.766
Follow-up period (yr)	7.08 (6.42-7.83)	7.08 (6.42-7.83)	0.100	0.921

UKA: Unicondylar knee arthroplasty; OA: Osteoarthritis.