Single institution, prospective cohort study of 21 patients who underwent single-or bilevel cervical disc arthroplasty for radiculopathy.
Objective. check details To evaluate the long-term outcome of cervical disc arthroplasty.
Summary of Background Data. There is an increasing trend in the use of cervical
arthroplasty; however, no long-term outcome studies exist to verify their safety, functionality, and durability.
Methods. A total of 21 patients underwent 27 total disc arthroplasties using the Bryan cervical disc (Medtronic Sofamor Danek Inc, Memphis, TN) after anterior cervical discectomy. Clinical and radiological data were obtained from the 8-year postoperative review.
Results. Nineteen of twenty-one patients were able to perform daily activities without limitation. Twenty of twenty-one patients reported fair to excellent outcome according to Odom criteria and 21 of 27 (78%) operated segments were mobile. Functional prostheses moved an average of 10.6 degrees, which was similar to the range of movement of the adjacent nonoperated segments of
the cervical spine. Heterotopic ossification was evident in 13 of the 27 (48%) operated segments and restricted movement of the prosthesis in nine cases. Five of the six patients who received bilevel arthroplasties developed heterotopic ossification. There was one case of posterior migration of the prosthesis, which SYN-117 ic50 did not have any clinical repercussion. No other case showed evidence of migration, subsidence, loosening, or wear. Radiological evidence of adjacent segment degeneration was observed in four patients (19%); however, each of these patients had pre-existing degenerative disc disease at these find more levels on preoperative imaging.
Conclusion. At 8-year follow-up, the Bryan cervical disc arthroplasty maintains favorable clinical and radiological
results, with preservation of movement and satisfactory clinical outcome in the majority of cases. However, the incidence of heterotopic ossification causing restricted range of movement of the prosthesis appears to increase with time, especially in bilevel procedures.”
“This study was performed to evaluate the cerebral protein synthesis rate of language brain regions in children with developmental delay with and without pervasive developmental disorder. The authors performed L-[1-C-11]-leucine positron emission tomography (PET) on 8 developmental delay children with pervasive developmental disorder (mean age, 76.25 months) and 8 developmental delay children without pervasive developmental disorder (mean age, 77.63 months). They found a higher protein synthesis rate in developmental delay children with pervasive developmental disorder in the left posterior middle temporal region (P = .014). There was a significant correlation of the Gilliam Autism Rating Scale autism index score with the protein synthesis rate of the left posterior middle temporal region (r = .496, P = .05).