Spine
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This study is a series of thoracic and lumbar spine fracture cases to assess the reliability of thoracolumbar injury classification and severity score (TLICS) in simulated clinical scenarios. ⋯ TLICS is a reliable system for assessing fractures of the thoracic and lumbar spine when used by experts. Similar to previous studies, the posterior ligamentous complex subcomponent score was the least reliable component. Reliability assessment using a generalizability coefficient is a robust method for validating fracture classifications.
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Prospective retrieval analysis of Prodisc-C cervical total disc replacements (CTDRs) from 24 explanting surgeons during a 6-year period. ⋯ Early clinical failures of Prodisc-C CTDRs display surface damage evidence of metal endplate-endplate impingement, most commonly posteriorly. Backside wear was not evident; however, third-body wear was found. Future studies will determine the clinical impact of these predominant modes of wear on long-term metal-on-polyethylene semiconstrained CTDR performance.
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We retrospectively analyzed prognostic factors for survival in patients with prostate cancer operated for metastatic spinal cord compression. ⋯ We present a new prognostic score for predicting survival of patients with prostate cancer after surgery for metastatic spinal cord compression. The score is easy to apply in clinical practice and may be used as additional support when making decision about treatment.
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An in vitro biomechanical study. ⋯ In the setting of total sacrectomy, the double-rod double iliac screw method provided the most rigid fixation, followed by DIS fixation, single-rod single screw, and the MGT. In spinopelvic reconstruction, the use of double iliac screws is recommended compared with single iliac screw fixation techniques when treating unstable conditions caused by total sacrectomy.
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Observational anatomic study. ⋯ Medial branches of the cervical dorsal rami were discernible in cervical posterior approach laminoplasty and were frequently found adjacent to C4 and C5 spinous processes. The medial branches sometimes supplied motor fibers to the semispinalis capitis muscle. Knowledge of the course of these branches might be helpful for avoiding injury during laminoplasty.