Fig. 1From: Unexpected dislocation following accurate total hip arthroplasty caused by excessive hip joint laxity during myasthenic crisis: a case reportAnteroposterior radiograph of both hips (a) and T1-weighted magnetic resonance coronal image of both hips (b) showing bilateral osteonecrosis of the femoral head; stage 3A/3A, type C1/C2Back to article page