Table 1.
Baseline characteristics
| Characteristics | High tibial osteotomy | Knee joint distraction | |
|---|---|---|---|
| Mean (±SEM) | (n = 45) | (n = 22) | p value |
| Male gender (n) | 27/45 (60 %) | 16/22 (73 %) | n.s. |
| Height (cm) | 177 ± 2 | 178 ± 2 | n.s. |
| Weight (kg) | 85.2 ± 2.1 | 87.2 ± 2.8 | n.s. |
| Body mass index (kg/m2) | 27.2 ± 0.5 | 27.5 ± 0.7 | n.s. |
| Affected knee (left) | 20/45 (44 %) | 10/22 (45 %) | n.s. |
| Age at surgery (year) | 49.4 ± 1.0 | 51.2 ± 1.1 | n.s. |
| Kellgren and Lawrence (median) | 3 | 3 | n.s. |
| Grade 0 (n) | 1 (2 %) | 0 (0 %) | |
| Grade 1 (n) | 5 (11 %) | 6 (27 %) | |
| Grade 2 (n) | 12 (27 %) | 4 (18 %) | |
| Grade 3 (n) | 23 (51 %) | 11 (50 %) | |
| Grade 4 (n) | 4 (9 %) | 1 (5 %) | |
| Tibiofemoral axis (°) | 6.2 ± 0.3 | 5.8 ± 0.6 | n.s. |
| Previous surgery | |||
| Operation (number) | |||
| ACL reconstruction (n) | 4 | 2 | |
| High tibial osteotomy (n) | 2 | 0 | |
| Arthroscopy | 31 | 16 | |
| Partial meniscectomy (n) | 18 | 12 | |
| Arthroscopic joint lavage (n) | 13 | 4 | |
| Open medial meniscectomy (n) | 3 | 1 | |
| Tibial crest transposition (n) | 1 | 0 | |
| Fixation osteochondritis dissecans lesion (n) | 1 | 0 |