Table 1: Patient characteristics.

Parameter Mean ± S.D.
Knees / Patients 130 / 116
Male (# of knees)/ Female (# of knees) 13 (14) / 103 (116)
Mean age (years); [range] 71 ± 8; [39–88]
BMI 26 ± 4
Pre-op. HSS Score 43 ± 11
Osteoarthritis Grade* IV: 130
LBR<50% / 50% ≤ LBR 123 / 7

Pre-op: pre-operation; S.D.: standard deviation; HSS: Hospital for Special Surgery; LBR: Load Bearing Ratio.
* Osteoarthritis grade was evaluated using the Kellgren and Lawrence radiographic grading scale [8].