Fig. 3From: Guided growth in the correction of knee deformity in patients with congenital insensitivity to paina Case 2, a 9-year-old male with HSAN type IV lip and tongue bites and loss of multiple teeth. However, this patient did not show self-mutilating behavior. b Clinical photograph at presentation, with severe bilateral swelling of the knees, and genu valga. c Standing AP radiograph, showing genu valgum. A previous femoral fracture was fixed with a plate. d Standing anteroposterior radiograph 2 years postoperative, showing improved lower limb alignment. The patellae seem dislocated on both radiographs. However, this patient has severe rotational malalignment of the lower limbs, with “apparent” patellar dislocation due to tangential X-ray projectionBack to article page