Spine
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Multicenter Study Comparative Study
Construct validity of the physical function scale of the Swiss Spinal Stenosis Questionnaire for the measurement of walking capacity.
Measurement (validity) study using data from a prospective longitudinal study of lumbar spinal stenosis. ⋯ Results support construct validity of the Physical Function Scale for the measurement of walking in an lumbar spinal stenosis population. However, it cannot be ascertained from the current study that the construct being measured is, indeed, walking capacity. Further research is warranted to investigate criterion validity evidence for the use of the Physical Function Scale in the measurement of walking capacity in lumbar spinal stenosis, by examining the relationships between self-report and observational measures of walking.
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Multicenter Study Comparative Study
A pedicle screw construct gives an enhanced posterior correction of adolescent idiopathic scoliosis when compared with other constructs: myth or reality.
Tricenter retrospective cohort study of 72 patients who underwent posterior correction of Lenke 1 adolescent idiopathic scoliosis (AIS). Each center represented a single surgeon using only one type of construct. ⋯ The Group 3 (pedicle screw only) construct did not give an enhanced correction of Lenke 1 AIS, when the preoperative flexibility of the curve was considered. Also, contrary to popular belief, the pedicle screw construct has a lordosing effect on the thoracic spine. Therefore, we think that there is no significant advantage in using a relatively expensive pedicle screw construct in the correction of Lenke 1 AIS.
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Multicenter Study
Predictors of change in postoperative pulmonary function in adolescent idiopathic scoliosis: a prospective study of 254 patients.
A multicenter study of prospectively collected pulmonary function testing and radiographic measures in patients surgically treated for adolescent idiopathic scoliosis (AIS). ⋯ Aside from preoperative PFT values, open anterior approaches predict the largest percent of variance in 2-year PFT. Additionally, a clinically significant reduction in the predicted 2-year pulmonary function is more likely when performing a thoracoplasty. The magnitude of the effects for both these variables, however, is modest. This may facilitate the decision-making process as regards to operative intervention.
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Comparative Study
Psychiatric comorbidity in chronic disabling occupational spinal disorders has minimal impact on functional restoration socioeconomic outcomes.
A prospective study conducted at a tertiary functional restoration center for patients with chronic disabling occupational spinal disorders (CDOSDs), comparing treatment outcome status 1-year posttreatment of patients with specific diagnosed psychiatric disorders to those without. ⋯ Despite intensive management of psychiatric disorders during interdisciplinary functional restoration for CDOSD, several disorders were found to be associated with less successful outcomes. Poorer work outcomes were more common with specific (and comorbid) Axis I psychiatric disorders. Opioid dependence was the single disorder associated most often with less successful outcomes. Despite these findings, the large majority of patients demonstrated successful outcomes. Depression did not independently link to less successful outcomes.
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Comparative Study
The incidence of donor site pain after bone graft harvesting from the posterior iliac crest may be overestimated: a study on spine fracture patients.
A retrospective cohort study on patients with traumatic vertebral fractures who underwent fusion with iliac crest bone. ⋯ Patients probably cannot differentiate between donor site pain and residual low back pain. The reported incidence of pain related to posterior iliac crest bone graft harvesting may therefore be overestimated.