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Surgery helped normalize preoperative apices in adolescents with Scheuermann’s kyphosis

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MINNEAPOLIS — More than two-thirds of adolescents who underwent surgery for Scheuermann’s kyphosis experienced postoperative migration of thoracic and lumbar apices closer to the gravity line, a presenter said at the Scoliosis Research Society Annual Meeting, here.

Baron S. Lonner, MD, explained that operative treatment seemed to improve outcomes in what he said was the largest prospective study of operative care for patients with Scheuermann’s kyphosis (SK).

“We did find a normalization of apex translation with our procedures,” Lonner said.

Lonner and colleagues included 96 patients undergoing surgery for SK. Mean improvement in maximum kyphosis and maximum lumbar lordosis were noted. Following surgery, the maximum kyphosis improved from 74.4° to 46.1° (P < .0001) and lumbar lordosis was reduced 10° (P < .0001), according to Lonner.

Proximal junctional kyphosis occurred in 25% of patients at follow-up, although none of the patients developed distal junctional kyphosis, he said.

The thoracic and lumbar apices migrated closer to the gravity lines in these patients, from -10.06 mm to -4.87 mm for the thoracic apex and from 2.28 mm to 2.1 mm for the lumbar apex. More than 66% of patients in the study had preoperative apices caudal to T8 that normalized and they showed improved postoperative function.

Furthermore, all health-related quality of life outcomes also improved in these, according to Lonner. – by Robert Linnehan

Reference:

Lonner BS, et al. Paper #117. Presented at: Scoliosis Research Society Annual Meeting; Sept. 30-Oct. 3, 2015; Minneapolis.

Disclosure: Lonner reports he received grants and/or research support from AOSpine, he is a consultant to, member of the speakers bureau, member of the advisory board or panel, or receives grants and/or research support and other financial or material support from DePuy Synthes. He reports he is a member of the K2M speakers bureau for and reports he receives other financial or material support from Paradigm Spine and SpineSearch.