Table 1.
Characteristics and Radiographic Parameters a
| Knees, Mean (Range) | ||||
|---|---|---|---|---|
| Total (N = 139) | Miniaci Method (n = 47) | LMLR Method (n = 92) | P Value | |
| Age, y | 54.4 (33 to 65) | 53.66 (33 to 64) | 54.78 (36 to 65) | .378 |
| Male:female b | 48:91 | 13:34 | 35:57 | .223 |
| MA on standing XR, deg c | ||||
| Preoperative | –8.46 (–5.0 to –18.8) | –7.83 (–5.1 to –12.7) | –8.78 (–5.0 to –18.8) | .071 |
| 6-mo postoperative | 3.97 (–1.5 to 10.4) | 4.87 (–1.5 to 9.8) | 3.51 (–1.1 to 10.4) | .001 |
| JLCA, deg c | ||||
| On standing-leg XR | –3.52 (–12.8 to 1.1) | –3.24 (–8.4 to –0.2) | –3.67 (–12.8 to 1.1) | .255 |
| On valgus stress XR | 1.13 (–2.2 to 7.6) | 1.19 (–1.5 to 5.7) | 1.10 (–2.2 to 7.6) | .768 |
| On varus stress XR | –5.18 (–12.1 to –0.9) | –4.88 (–8.7 to –0.9) | –5.34 (–12.1 to –1.0) | .162 |
| ΔJLCAvalgus, deg c | 4.66 (0.8 to 16.8) | 4.44 (0.8 to 10.1) | 4.78 (1.2 to 16.8) | .428 |
| ΔJLCAvarus, deg c | –1.67 (–4.4 to 0.7) | –1.63 (–3.3 to –0.3) | –1.68 (–4.4 to 0.7) | .809 |
| RCA, deg | 9.94 (6.0 to 20.0) | 10.23 (6.0 to 16.0) | 9.79 (6.0 to 20.0) | .338 |
| TCA, deg | 11.46 (8.0 to 21.80) | 10.83 (8.1 to 15.7) | 11.78 (8.0 to 21.8) | .071 |
a Bold P value indicates statistically significant difference between methods (P < .05). JLCA, joint-line convergence angle; ΔJLCA, difference in JLCA between standing and valgus stress radiograph; LMLR, latent medial laxity reduction; MA, mechanical axis; RCA, real correction angle; TCA target correction angle; XR, radiograph.
b No. of knees.
c Positive values denote valgus alignment, and negative values denote varus alignment.