Spine
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Multicenter Study
Surgical results and related factors for ossification of posterior longitudinal ligament of the thoracic spine: a multi-institutional retrospective study.
Retrospective multi-institutional study ⋯ The factors significantly associated with favorable surgical results were maximum ossification located at the upper thoracic spine and use of instrumentation. T-OPLL at the nonkyphotic upper thoracic spine can be treated by laminoplasty that is relatively a safe surgical procedure for neural elements. The use of instrumentation allows correction of kyphosis or prevention of progression of kyphosis, thereby, enhancing and maintaining decompression effect, and its use should be considered with posterior decompression.
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A prospective, cohort evaluation of 262 consecutive patients who underwent transforaminal endoscopic excision for recurrent lumbar disc herniation, after previous discectomy. ⋯ ETD for recurrent disc herniation seems to be an effective method with few complications and a high patient satisfaction.
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Cross-cultural adaptation of an outcome questionnaire. ⋯ The NPAD-D is a reliable and valid patient-orientated instrument for use in future studies of neck pain and disability in German speaking patients.
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Case control study including 2 groups of patients with low back pain (LBP, inflammatory and noninflammatory) and a pain-free community control group. ⋯ Organic pain beliefs are associated with increased catastrophizing in patients with chronic LBP, and addressing these beliefs may help patients to manage their pain and disability. Meanings attributed to inflammatory and noninflammatory diagnostic labels may contribute to the different pain beliefs held by different patient groups.
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In vivo experiments using a rat model of painful facet joint distraction. ⋯ Results suggest ligament tension may be required to produce pain from facet joint loading. Further studies of other cellular responses are needed to define the mechanisms of painful facet joint injury.