European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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The purpose of this cross-sectional, observational study was to establish the relationship between standing lumbar lordosis (LL) and lateral decubitus LL. ⋯ Standing LL was strongly correlated to lateral decubitus LL, although subjects lost an average of 11.9° from the standing to the lateral decubitus position. This has important implications for fusion in the lateral position.
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As the number of instrumented fusions increases, so does the utilization of bone substitutes. However, controversies persist regarding the effectiveness of ceramics in promoting solid fusion. Few histological studies have been conducted on patients to address this issue. To contribute insights into this topic, we assessed bony fusion both intraoperatively and histologically in patients who underwent posterolateral instrumented fusions enhanced with a biphasic ceramic compound. ⋯ The utilization of biphasic ceramics proved ineffective in attaining a proper fusion mass between the intertransverse space. Both surgical inspection and histological studies confirmed the absence of integration. Prudence should be exercised regarding the use of ceramics. While no clear instability was observed, neither was there any integration.
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The type of atlantodental space tissue in patients with atlantoaxial dislocation (AAD) can help doctors understand the possibility of reduction before surgery. However, relevant research on this topic is lacking. In this study, we aimed to summarise the atlantodental space classification of patients with AAD using magnetic resonance imaging (MRI) and explore their clinical characteristics. ⋯ Novel MRI signs exhibited high inter- and intra-observer consistency and were associated with patient age, abnormal spinal cord signals, reducibility, range of motion of ADI, and symptoms.