Table 2.
Limbs’ characteristics at baseline evaluation.
| Limbs’ Characteristics | Idiopathic (N = 151) | MO a (N = 33) | p-Value * | |
|---|---|---|---|---|
| Affected side, n (%) | 0.85 | |||
| Left | 75 (50) | 17 (52) | ||
| Right | 76 (50) | 16 (48) | ||
| Radiographic Parameters | ||||
| MAD b, mm | Mean (SD) | 8.8 (10.6) | 17.9 (10.0) | <0.001 |
| MAD, % | Mean (SD) | 11.8 (13.7) | 27.7 (17.1) | <0.001 |
| aLDFA c, degree (°) | Mean (SD) | 79.7 (2.8) | 80.5 (4.4) | 0.047 |
| mLDFA d, degree (°) | Mean (SD) | 85.3 (2.5) | 85.8 (3.4)) | 0.27 |
| MPTA e, degree (°) | Mean (SD) | 90.2 (2.8) | 95.1 (4.7) | <0.001 |
| HKA f, degree (°) | Mean (SD) | 3.4 (3.1) | 8.0 (4.1) | <0.001 |
| x-Ray femur, cm | Mean (SD) | 48.3 (4.5) | 41.4 (4.5) | <0.001 |
| x-Ray tibia, cm | Mean (SD) | 38.8 (3.7) | 32.3 (3.8) | <0.001 |
| x-Ray fibula, cm | Mean (SD) | 38.5 (3.6) | 30.8 (3.8) | <0.001 |
| Tibia/fibula ratio | Mean (SD) | 1.01 (0.01) | 1.05 (0. 04) | <0.001 |
| Femur/tibia ratio | Mean (SD) | 1.24 (0.04) | 1.28 (0.06) | <0.001 |
| Surgical Variables | ||||
| Site of stapling, n (%) | <0.001 | |||
| Distal femur | 120 (79.2) | 8 (24.2) | ||
| Proximal tibia | 20 (13.2) | 21 (63.6) | ||
| Distal femur and proximal tibia | 8 (5.3) | 2 (6.1) | ||
| Other g | 3 (2) | 2 (6.1) | ||
| Duration of correction, month | Mean (SD) | 14.3 (5.5) | 24.7 (9.2) | <0.001 |
a MO: multiple osteochondromas; b MAD: mechanical axis deviation; c aLDFA: anatomical lateral distal femoral angle; d mLDFA: mechanical lateral distal femoral angle; e MPTA: medial proximal tibial angle; f HKA: hip–knee–ankle angle; g Other cases included the association of tibial medial hemiepiphysiodesis and femoral distal epiphysiodesis (two limbs) and tibial proximal epiphysiodesis and femoral medial hemiepiphysiodesis (three limbs); * p-values: Mann–Whitney U test (Wilcoxon) for continuous variables, χ2 or exact Fisher test for categorical variables.