Table 2.

Patient demographics

	N (percentage)	Mean ± SD (Range)
Age, years		71 ± 8.8 (49–93)
BMI		32.0 ± 5.7 (19–48.2)
Sex
Male	128 (43%)
Female	170 (57%)
ASA
1	17 (5.7%)
2	219 (73.5%)
3	61 (20.5%)
4	1 (0.3%)
Type of implant
Cemented	233 (78.2%)
Uncemented	65 (21.8%)
Modified Charnley class (at mid-term review)
A (Unilateral TKA)	26 (11.6%)
B (Bilateral TKA or unilateral TKA with contralateral knee arthritis)	122 (54.5%)
C (TKA with remote arthritis and/or medical condition that affected their ability to ambulate)	76 (33.9%)