Table 6.
Comparisons between the PAONK and Control groups concerning the preoperative, surgical, and post-operative factors. Continuous variables are shown as “mean (standard deviation)”
| Factors | PAONK group | Control group | Comparison |
|---|---|---|---|
| Age | 67.5 (5.9) | 68.0 (7.3) | N.S.* |
| Sex | M: 2, F: 8 | M: 2, F: 8 | N.S.** |
| Body weight | 60.9 (8.5) | 61.9 (14.3) | N.S.* |
| BMI (kg/m2) | 25.9 (4.4) | 24.9 (4.7) | N.S.* |
| OA grade | G0: 1, G1: 2, G2: 7 | G1: 3, G2: 6, G3: 1 | N.S.*** |
| FTA | 176.2 (3.4) | 176.4 (2.3) | N.S.* |
| Period for preoperative conservative treatment | 12.5 wks (10.2) | 14.6 wks (10.7) | N.S.* |
| Diagnosis | MMT: 10, CM@MFC: 10 | MMT: 10, CM@MFC: 10 | N.S.*** |
| CM@MTP: 8 | CM@MTP: 8 | ||
| Type of MM tear | PRT: 5, RT: 5 | RT: 5, HT: 5 | P = 0.0016** |
| Surgery done | PMM: 10, PLM: 2, LMR: 1 | PMM: 10, PLM: 4 | N.S.*** |
| Resected width of MM | Subtotal: 8, Half: 2 | Subtotal: 0, Half: 10 | P = 0.0007** |
| Period from the surgery to the postoperative MRI | 12.1 wks (7.9) | 16.6 wks (14.3) | N.S.* |
F Female, M Male, R Right, L Left, BME Bone marrow edema, MMT Medial meniscus tear, LMT Lateral meniscus tear, CM Chondromalacia, MFC Medial femoral condyle, MTP Medial tibial plateau, LTP Lateral tibial plateau, OA osteoarthritis, FTA Femorotibial angle. * Mann-Whitney U test. ** Fisher’s exact test. *** Chi-square test for trend