Outcome scores in medial parapatellar and lateral parapatellar approach patients with valgus preoperative alignment up to 1 year postoperative
| Outcome | Group; mean ± SD | p value | |
|---|---|---|---|
| MPA | LPA | ||
| SF-12 MCS, 1 yr postop | 46.5 ± 17.7 | 43.0 ± 7.1 | 0.73 |
| SF-12 PCS, 1 yr postop | 53.0 ± 7.1 | 34.5 ± 3.7 | 0.011 |
| WOMAC pain, 1 yr postop | 92.5 ± 3.5 | 71.7 ± 10.4 | 0.08 |
| WOMAC stiffness, 1 yr postop | 62.5 ± 17.7 | 66.3 ± 7.5 | 0.81 |
| WOMAC function, 1 yr postop | 89.0 ± 9.9 | 61.7 ± 4.5 | 0.022 |
| WOMAC total, 1 yr postop | 85.0 ± 5.7 | 67.0 ± 6.6 | 0.05 |
| Extension, °, 1 yr postop | 1.7 ± 2.9 | 2.5 ± 2.9 | 0.72 |
| Flexion, °, 1 yr postop | 123.3 ± 5.8 | 110.0 ± 11.5 | 0.11 |
| KSS function, 1 yr postop | 93.3 ± 11.5 | 43.8 ± 54.4 | 0.17 |
| KSS knee, 1 yr postop | 98.3 ± 2.1 | 95.3 ± 2.5 | 0.15 |
| KSS total, 1 yr postop | 191.7 ± 10.2 | 139.0 ± 56.1 | 0.16 |
KSS = Knee Society Score; LPA = lateral parapatellar approach; MPA = medial parapatellar approach; SF-12 MCS = Short-Form 12 Mental Composite Score; SF-12 PCS = Short-Form 12 Physical Composite Score; WOMAC = Western Ontario and MacMaster Universities Osteoarthritis Index.