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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This study systematically assesses the learning curve of Unilateral Biportal Endoscopic (UBE) techniques across various spinal surgeries, focusing on its influence on operative efficiency and complication rates to guide optimized training and practice. ⋯ This systematic review confirms a learning curve in UBE surgery, with improvements in operative time and complications. Procedure-specific cutoff points provide guidance for training and future research.
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This study was performed to assess the impact of cervical kyphosis on the locations of average center of rotation (COR) of each level preoperatively and to investigate whether uncorrected cervical kyphosis increases the incidence of symptomatic adjacent segment degeneration (ASD) after anterior cervical decompression and fusion (ACDF). ⋯ Cervical kyphosis can impact the locations of COR and increase the incidence of symptomatic ASD. Kyphosis correction is needed during ACDF in patients with cervical kyphosis.
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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.
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Lumbar disc herniation (LDH) with radiculopathy is associated with greater pain, disability, healthcare use, and costs compared with nonspecific low back pain. Reliable information about its incidence and risk factors were lacking. ⋯ Incidence of LDH varies in different populations and according to case definition. Risk factors include individual, behavioural, and work-related variables. Our findings support the need to develop standardised case definitions that validly classify the clinical spectrum of LDH and for future low risk of bias studies examining causal relationships for LDH with radiculopathy in adults.
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Multicenter Study
Is MAGEC X better than earlier designs of magnetically controlled growing rod: an explant study.
Determine the performance of MAGEC X rods through retrieval analysis and comparison with clinical data. ⋯ Despite the substantial design changes with MAGEC X tissue metallosis was seen in most cases; most explanted MAGEC X rods had lengthened only partially and produced no force output. While the previous issue of locking pin fracture appears to have been mitigated with MAGEC X, there are multiple other and new failure modes, such as endcap separation. Overall MAGEC X appears to give little improvement over earlier iterations of the rod.