Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004396590> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W2004396590 endingPage "2303" @default.
- W2004396590 startingPage "2299" @default.
- W2004396590 abstract "The effect of intraoperative hip position on maintenance of lumbar lordosis was evaluated radiographically in 13 anesthetized patients and 14 unanesthetized volunteers positioned on a Wilson frame (MDT Corp., Torrance, CA).To evaluate the effect of hip position on total and segmental lumbar lordosis in patients and volunteers in standardized positions: standing and with hips extended and flexed on a Wilson frame.Preservation of lordosis during instrumented lumbar fusion is critical for maintenance of normal sagittal alignment. It is customary to extend the hips on certain positioning devices to maximize lordosis maintenance. However, little information exists concerning the degree to which this actually affects lumbar lordosis. Further, the question of how individuals are specifically affected intraoperatively by differences of position on the same device remains unanswered.Preoperative standing and intraoperative lateral lumbar spine radiographs with patients' hips in standardized flexed and extended positions were obtained (n = 13). Similar radiographs were obtained of asymptomatic volunteers (n = 14). Lumbar lordosis (L1-S1) and intervertebral body angles at each level were measured. Data were analyzed for changes in total and segmental lordosis between standing and intraoperative positions for all subjects.In the patient group, 95% of preoperative standing lordosis was maintained with the patients' hips extended. With hips flexed from 19 degrees to 48 degrees (mean, 33 degrees), 74% of lordosis was maintained. In the volunteer group, 98% of standing lordosis was maintained with volunteers' hips extended; with their hips flexed 20 degrees to 36 degrees (mean, 28 degrees), 86% of lordosis was maintained.Hip flexion was associated with a significant decrease in lordosis in patients and volunteers. Positioning in maximal hip extension optimizes lordosis preservation. While other devices have been shown to have specific effects on lordosis, the Wilson frame can permit easy adjustment of the lumbar sagittal contour to facilitate either preservation or reduction in lordosis." @default.
- W2004396590 created "2016-06-24" @default.
- W2004396590 creator A5035539150 @default.
- W2004396590 creator A5038826063 @default.
- W2004396590 date "1997-10-01" @default.
- W2004396590 modified "2023-09-23" @default.
- W2004396590 title "The Effect of Intraoperative Hip Position on Maintenance of Lumbar Lordosis" @default.
- W2004396590 cites W2058062223 @default.
- W2004396590 cites W2064147774 @default.
- W2004396590 cites W2139522905 @default.
- W2004396590 cites W4230402520 @default.
- W2004396590 doi "https://doi.org/10.1097/00007632-199710010-00021" @default.
- W2004396590 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/9346152" @default.
- W2004396590 hasPublicationYear "1997" @default.
- W2004396590 type Work @default.
- W2004396590 sameAs 2004396590 @default.
- W2004396590 citedByCount "41" @default.
- W2004396590 countsByYear W20043965902012 @default.
- W2004396590 countsByYear W20043965902013 @default.
- W2004396590 countsByYear W20043965902015 @default.
- W2004396590 countsByYear W20043965902016 @default.
- W2004396590 countsByYear W20043965902017 @default.
- W2004396590 countsByYear W20043965902018 @default.
- W2004396590 countsByYear W20043965902019 @default.
- W2004396590 countsByYear W20043965902020 @default.
- W2004396590 countsByYear W20043965902021 @default.
- W2004396590 countsByYear W20043965902022 @default.
- W2004396590 crossrefType "journal-article" @default.
- W2004396590 hasAuthorship W2004396590A5035539150 @default.
- W2004396590 hasAuthorship W2004396590A5038826063 @default.
- W2004396590 hasConcept C105702510 @default.
- W2004396590 hasConcept C141071460 @default.
- W2004396590 hasConcept C178910020 @default.
- W2004396590 hasConcept C2777910003 @default.
- W2004396590 hasConcept C2780901121 @default.
- W2004396590 hasConcept C2908684587 @default.
- W2004396590 hasConcept C36454342 @default.
- W2004396590 hasConcept C44575665 @default.
- W2004396590 hasConcept C71924100 @default.
- W2004396590 hasConceptScore W2004396590C105702510 @default.
- W2004396590 hasConceptScore W2004396590C141071460 @default.
- W2004396590 hasConceptScore W2004396590C178910020 @default.
- W2004396590 hasConceptScore W2004396590C2777910003 @default.
- W2004396590 hasConceptScore W2004396590C2780901121 @default.
- W2004396590 hasConceptScore W2004396590C2908684587 @default.
- W2004396590 hasConceptScore W2004396590C36454342 @default.
- W2004396590 hasConceptScore W2004396590C44575665 @default.
- W2004396590 hasConceptScore W2004396590C71924100 @default.
- W2004396590 hasIssue "19" @default.
- W2004396590 hasLocation W20043965901 @default.
- W2004396590 hasLocation W20043965902 @default.
- W2004396590 hasOpenAccess W2004396590 @default.
- W2004396590 hasPrimaryLocation W20043965901 @default.
- W2004396590 hasRelatedWork W1996448696 @default.
- W2004396590 hasRelatedWork W2013682364 @default.
- W2004396590 hasRelatedWork W2065261875 @default.
- W2004396590 hasRelatedWork W2066500046 @default.
- W2004396590 hasRelatedWork W2073612444 @default.
- W2004396590 hasRelatedWork W2110599081 @default.
- W2004396590 hasRelatedWork W2316278183 @default.
- W2004396590 hasRelatedWork W2566891461 @default.
- W2004396590 hasRelatedWork W4231593697 @default.
- W2004396590 hasRelatedWork W4292679482 @default.
- W2004396590 hasVolume "22" @default.
- W2004396590 isParatext "false" @default.
- W2004396590 isRetracted "false" @default.
- W2004396590 magId "2004396590" @default.
- W2004396590 workType "article" @default.