Spine
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A retrospective review (phase 1) and prospective clinical study (phase 2). ⋯ This study identified diabetes and preoperative irradiation to be independent risk factors for SSI in patients with spinal metastasis. PGE1 administration was found to significantly decrease the incidence of SSI in patients with spinal metastasis who underwent preoperative irradiation.
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A reliability and validity study of a translated, culturally adapted questionnaire. ⋯ The results of our study show that QDS as a functional status questionnaire has been translated into Turkish without losing the psychometric properties of the original version. The Turkish version of the QDS has good comprehensibility, internal consistency, and validity and is an adequate and useful instrument for the evaluation of disability in patients with LBP.
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Prospective validation study of a cross-cultural adaptation of the Scoliosis Research Society (SRS) Outcomes Questionnaire. ⋯ The SRS-22-fv showed satisfactory reliability, factorial, concurrent, and discriminant validity. This study provides scores in a significant group of healthy adolescents and demonstrates a clear gradient in response between subjects with AIS, NCSS, and controls.
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Randomized Controlled Trial Comparative Study
Cervical disc replacement in patients with and without previous adjacent level fusion surgery: a prospective study.
Prospective 6-center study. OBJECTIVE.: To evaluate outcomes of cervical disc replacement performed adjacent to a prior cervical fusion. ⋯ Although the level adjacent to a prior cervical fusion is subject to increased biomechanical forces, potentially leading to a higher risk of failure, the PCM disc was well tolerated in the short term. The early clinical results of disc replacement adjacent to a prior fusion are good and comparable to the outcomes after primary disc replacement surgery. However, in view of the small study population and short-term follow-up, continued study is mandatory.
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Comparative Study Clinical Trial
Significantly improved outcomes with a less invasive posterior lumbar interbody fusion incorporating total facetectomy.
Original study. ⋯ Clinical outcomes were significantly improved after both ST-PLIF and LI-PLIF. However, outcomes were significantly better after LI-PLIF than after ST-PLIF. Significantly shortened hospital stay with LI-PLIF probably reflected the "less invasive" technique per se. Significantly better clinical outcomes with fewer complications after LI-PLIF, however, potentially reflected maneuvers singular to LI-PLIF: (1) preservation of posterior elements, (2) avoidance of far lateral dissection over the transverse processes, (3) bilateral total facetectomy, (4) fewer neurologic complications, and (5) avoidance of iliac crest autograft. LI-PLIF is therefore recommended over ST-PLIF.