Table 1.
Patient characteristics of the study group
| Preoperatively | 1 year postoperatively | |||||
|---|---|---|---|---|---|---|
| All | Men | Women | All | Men | Women | |
| n = 182 | n = 123 | n = 59 | n = 156 | n = 103 | n = 53 | |
| Age year | ||||||
| mean | 52.8 | 53.7 | 51 | 53.2 | 54.1 | 51.5 |
| range | 34-69 | 36-69 | 34-63 | 35-69 | 36-69 | 35-63 |
| BMI kg/m2 | ||||||
| Mean | 28.9 | 28.8 | 29.3 | 29 | 28.7 | 29.6 |
| Range | 17.9-39.7 | 23-39 | 17.9-39.7 | 21-39.7 | 23-39 | 21-39.7 |
| Ahlbäck OA grade *(n)# | ||||||
| OA grade 1 | 30 | 18 | 12 | 26 | 16 | 10 |
| OA grade 2 | 60 | 40 | 20 | 50 | 32 | 18 |
| OA grade 3 | 71 | 50 | 21 | 66 | 45 | 21 |
| OA grade 4 | 13 | 9 | 4 | 9 | 7 | 2 |
| OA grade 5 | 5 | 1 | 0 | 1 | 1 | 0 |
| Preop HKA-angle | ||||||
| Degrees | ||||||
| Mean | 170.4 | 169.9 | 171.3 | 170.5 | 169.9 | 171.7 |
| range | 153-178 | 153-178 | 159-178 | 157-178 | 157-178 | 161-178 |
| KOOS Pain | ||||||
| Mean | 42 | 47 | 38 | 42 | 45 | 37 |
| Range | 3-86 | 3-86 | 3-67 | 3-81 | 3-81 | 3-67 |
*Ahlbäck classification [8]
# missing data 7 patients
BMI = Body Mass Index
Pre op HKA angle = preoperativ HKA-angle
(<180 degree = varus)