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Table 4.
Comparison of patient criteria in different studies.
| Ziebarth et al. (2009) | Slongo et al. (2010) | Huber et al. (2011) | Masse et al. (2012) | Sankar et al. (2013) | Novais et al. (2015) | Cosma et al. (2016) | Current study | ||
|---|---|---|---|---|---|---|---|---|---|
| No. of pts. | 40 (40 hips) | 23 (23 hips) | 28 (30 hips) | 19 (20 hips) | 27 (27 hips) | 15 (15 hips) | 7 (7 hips) | 30 (32 hips) | |
| Age at operation | Range | 16-Sep. | 17-Jul. | 9.4–16.6 | 19-Sep. | 9.7–16.0 | 17-Dec. | 12–13 | 18-Oct. |
| Mean | 12.5 | 12 | 12.2 | 14.2 | 12.6 | 14 | 13 | 14 | |
| Sex | Male | 17 (42.5%) | 14 (60.9%) | 11 (39.3%) | – | 17 (63%) | 11 (73%) | 7 (100%) | 22 (73.3%) |
| Female | 23 (57.5%) | 9 (39.1%) | 17 (60.7%) | – | 10 (37%) | 4 (27%) | 0 | 8 (26.7%) | |
| Side | Rt | 12 (30%) | 9 (39.13%) | – | – | 9 (33%) | 9 (60%) | 3 (42.9%) | 17 (56.7%) |
| Lt | 28 (70%) | 14 (60.8%) | – | – | 18 (66.6%) | 6 (40%) | 4 (57.1%) | 11 (36.7%) | |
| Bilateral | – | 2 (6.6%) | |||||||
| Duration of symptoms | Range | 1 day–3 years | 2 days–224 day | – | – | 6–184 h) | – | 3.5–5.5 weeks | 1–10 months |
| Mean | 4 months | 35 day | – | – | 35.9 h | – | 5 weeks | 4.5 months | |
| Follow-up (months) | Range | 23–62 | 15–102 | 24-Jun. | Dec.-48 | 12–60 | 8.5–23 | Jun.-36 | |
| Mean | 42 | 24 | 51.6 | 10.65 | 22.3 | 28.8 | 12 | 17.3 | |
| Fahey classification | Acute | 13 (32.5%) | – | 3 (10%) | 2 (10%) | 27 (100%) | 0 | 2 (28.6%) | 0 |
| Acute on chronic | 0 | 14 (60.9%) | 0 | 0 | 1 (14.3) | 1 (3%) | |||
| Chronic | 27 (67.5%) | 9 (39.1%) | 27 (90%) | 18 (90%) | 0 | 15 (100%) | 4 (57%) | 31 (97%) | |
| Loder classification | Stable | 27 (67.5%) | 20 (87%) | 27 (90%) | 18 (90%) | 0 | 15 (100%) | 6 (85.7%) | 32 (100%) |
| Unstable | 13 (32.5%) | 3 (13%) | 3 (10%) | 2 (10%) | 27 (100%) | – | 1 (14.3%) | – | |
| Southwick classification | Mild | 5 (12.5%) | 6 (23%) | 3 (10%) | – | – | 0 | 2 (6.25%) | |
| Moderate | 23 (57.5%) | 8 (35%) | 17 (57%) | – | – | 0 | 10 (31.25%) | ||
| Severe | 12 (30%) | 9 (42%) | 10 (33%) | 20 (100%) | – | 15 (100%) | 7 (100%) | 20 (62.5%) | |
| Pre op Slip angle | Range | 34–70° | 39–57° | 19–77° | – | 54–81° | 64–71.5° | 23–82.1° | |
| Mean | 45.6 | 47.6 | 44.9 | 50.65 | – | 650 | 680 | 52.5 | |
| Postoperative slip angle | Range | 1° to 20° | 3.5° to 6° | −430 | 2 to 11° | 6 to 23° | 7.5 to 13.5° | −12.2 to 28° | |
| Mean | 8.6 | 4.6 | 5.2 | 9.45 | 60 | 160 | 90 | 5.6 | |
| Mean correction | 370 | 430 | 39.7 | – | – | – | 46.85 | ||
| Pre op alpha angle | Range | – | – | – | – | – | 93–120° | – | 75–146.3° |
| Mean | – | – | 1110 | – | 97.85 | ||||
| Postoperative alpha angle | Range | 27°–60° | 24°–53° | 27°–77° | – | – | 40–51° | – | 45–64° |
| Mean | 40.6 | 380 | 41.4 | 43.11 | – | 440 | – | 51.15° | |
| Mean correction | – | – | – | – | – | 46.7 |
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