Fig. 3
From: Sustained hip flexion contracture after femoral lengthening in patients with achondroplasia
Radiographs of a 10-year-old boy with achondroplasia exhibiting sustained hip flexion contracture after femoral lengthening. a Initial radiograph of the patient. The patient underwent simultaneous bilateral femoral lengthening to gain 11 cm (lengthening percentage of 42.9%). b Postoperative radiograph showing an aggravation of the horizontal sacrum with lumbosacral hyperlordosis