Open Access
Table 1
Characteristics of cases 2–4.
| Case no. | 2 | 3 | 4 | |||
|---|---|---|---|---|---|---|
| Side | Right | Left | Right | Left | Right | Left |
| Age (years) | 17 | 22 | 28 | |||
| Gender | Male | Male | Male | |||
| Diagnosis | AS with stiff spine and bilateral fused (fibrous ankylosis) hips | AS without spinal involvement and with bilateral fused (fibrous ankylosis) hips | AS without spinal involvement and with bilateral fused (fibrous ankylosis) hips | |||
| Preoperative fusion position | 30° flexion, neutral rotation | 30° flexion, 15° abduction, 10° external rotation | 10° flexion, 10° external rotation | 10° flexion, 10° external rotation | 10° flexion, 10° abduction, 15° external rotation | 15° flexion, 15° external rotation |
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