Matches in SemOpenAlex for { <https://semopenalex.org/work/W2076243759> ?p ?o ?g. }
- W2076243759 endingPage "742" @default.
- W2076243759 startingPage "735" @default.
- W2076243759 abstract "Prospective comparative randomized clinical and radiologic study.This study was conducted to compare the short-term effects of rigid versus semirigid and dynamic instrumentation on the global and segmental lumbar spine profile, subjective evaluation of the result, and the associated complications.Lumbar spine fusion with rigid instrumentation for degenerative spinal disorders seems to increase the fusion rate. However, rigid instrumentation may be associated with some undesirable effects, such as increased low back pain following decrease of lumbar lordosis, fracture of the vertebral body and pedicle, pedicle screw loosening, and adjacent segment degeneration. The use of semirigid and dynamic devices has been advocated to reduce such adverse effects of the rigid instrumentation and thus to achieve a more physiologic bony fusion.This study compared 3 equal groups of 45 adult patients, who underwent primary decompression and stabilization for symptomatic degenerative lumbar spinal stenosis. The patients of each group were randomly selected and received either the rigid (Group A), or semirigid (Group B), or dynamic (Group C) spinal instrumentation with formal decompression and fusion. The mean ages of the patients who received rigid, semirigid, and dynamic instrumentation were 65 +/- 9, 59 +/- 16, and 62 +/- 10 years, respectively. All patients had detailed roentgenographic study including computed tomography scan and magnetic resonance imaging before surgery to the latest follow-up observation. The following roentgenographic parameters were measured and compared in all spines: lumbar lordosis (L1-S1), total lumbar lordosis (T12-S1), sacral tilt, distal lordosis (L4-S1), segmental lordosis, vertebral inclination, and disc index. The SF-36 health survey and Visual Analogue Scale was used before surgery to the latest evaluation.All patients were evaluated after a mean follow-up of 47 +/- 14 months. Both lumbar and total lordosis correction did not correlate with the number of the levels instrumented in any group. Total lordosis was slightly decreased after surgery (3%, P < 0.05) in Group C. The segmentallordosis L2-L3 was increased after surgery by 8.5% (P < 0.05) in Group C, whereas the segmentallordosis L4-L5 was significantly decreased in Group Aand C by 9.8% (P = 0.01) and 16.2% (P < 0.01), respectively. The disc index L2-L3 was decreased after surgery in Group A and C by 17% (P < 0.05) and 23.5% (P < 0.05), respectively. The disc index L3-L4 was increased in Group C by 18.74% (P < 0.01). The disc index L4-L5 was after surgery decreased in all 3 groups: Group A by 21% (P = 0.01), Group B by 13% (P < 0.05), and Group C by 13.23% (P < 0.05). The disc index L5-S1 was significantly decreased in Group B by 13% (P < 0.05). The mean preoperative scores of the SF-36 before surgery were 11, 14, and 13 for Groups C, B, and A, respectively. In the first year after surgery, there was a significant increase of the preoperative SF-36 scores to 65, 61, and 61 for Groups C, B, and A, respectively, that represents an improvement of 83%, 77%, and 79%, respectively. In the second year after surgery and thereafter, there was a further increase of SF-36 scores of 19%, 23%, and 21% for Groups C, B, and A, respectively. The mean preoperative scores of Visual Analogue Scale for low back pain for Groups C, B, and A were 5, 4.5, and 4.3, respectively, and decreased after surgery to 1.9, 1.5, and 1.6, respectively. The mean preoperative scores of the Visual Analogue Scale for leg pain for Groups C, B, and A were 7.6, 7.1, and 6.9, respectively, and decreased after surgery to 2.5, 2.5, and 2.7, respectively. All fusions healed radiologically within the expected time in all three groups without pseudarthrosis or malunion. Delayed hardware failure (1 screw and 2 rod breakages) 1 year and 18 months after surgery without radiologic pseudarthrosis was observed in 2 patients in Group C. Asymptomatic radiolucent areas were shown around pedicle screws in the pedd pedicle screws in the pedicles L5 and S1 in 2, 3, and 4 cases in Group C, A, and B, respectively. There was no adjacent segment degeneration in any spine until the last evaluation.This comparative study showed that all three instrumentations applied over a short area for symptomatic degenerative spinal stenosis almost equally after surgery maintained the preoperative global and segmental sagittal profile of the lumbosacral spine and was followed by similarly significant improvement of both self-assessment and pain scores. Hardware failure occurred at a low rate following dynamic instrumentation solely without radiologically visible pseudarthrosis or loss of correction. Because of the similar clinical and radiologic data in all three groups and the relative small number of patients that were included in each group, it is difficult for the authors to make any recommendation in favor of any instrumentation." @default.
- W2076243759 created "2016-06-24" @default.
- W2076243759 creator A5022509741 @default.
- W2076243759 creator A5037515770 @default.
- W2076243759 creator A5071269913 @default.
- W2076243759 creator A5090472809 @default.
- W2076243759 date "2004-04-01" @default.
- W2076243759 modified "2023-09-25" @default.
- W2076243759 title "Rigid, Semirigid Versus Dynamic Instrumentation for Degenerative Lumbar Spinal Stenosis" @default.
- W2076243759 cites W1965062981 @default.
- W2076243759 cites W1966512624 @default.
- W2076243759 cites W1966935626 @default.
- W2076243759 cites W1972755837 @default.
- W2076243759 cites W1980045201 @default.
- W2076243759 cites W2003912805 @default.
- W2076243759 cites W2004396590 @default.
- W2076243759 cites W2013818208 @default.
- W2076243759 cites W2014556005 @default.
- W2076243759 cites W2017382592 @default.
- W2076243759 cites W2018229691 @default.
- W2076243759 cites W2034510574 @default.
- W2076243759 cites W2035846620 @default.
- W2076243759 cites W2040691890 @default.
- W2076243759 cites W2045021204 @default.
- W2076243759 cites W2053563436 @default.
- W2076243759 cites W2053844518 @default.
- W2076243759 cites W2058985629 @default.
- W2076243759 cites W2064147774 @default.
- W2076243759 cites W2070191212 @default.
- W2076243759 cites W2070604339 @default.
- W2076243759 cites W2072216466 @default.
- W2076243759 cites W2077876708 @default.
- W2076243759 cites W2081538797 @default.
- W2076243759 cites W2086648373 @default.
- W2076243759 cites W2171410937 @default.
- W2076243759 cites W2216120214 @default.
- W2076243759 cites W2262742104 @default.
- W2076243759 cites W2317842306 @default.
- W2076243759 cites W2418144775 @default.
- W2076243759 cites W36068048 @default.
- W2076243759 doi "https://doi.org/10.1097/01.brs.0000112072.83196.0f" @default.
- W2076243759 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15087795" @default.
- W2076243759 hasPublicationYear "2004" @default.
- W2076243759 type Work @default.
- W2076243759 sameAs 2076243759 @default.
- W2076243759 citedByCount "117" @default.
- W2076243759 countsByYear W20762437592012 @default.
- W2076243759 countsByYear W20762437592013 @default.
- W2076243759 countsByYear W20762437592014 @default.
- W2076243759 countsByYear W20762437592015 @default.
- W2076243759 countsByYear W20762437592016 @default.
- W2076243759 countsByYear W20762437592017 @default.
- W2076243759 countsByYear W20762437592018 @default.
- W2076243759 countsByYear W20762437592019 @default.
- W2076243759 countsByYear W20762437592020 @default.
- W2076243759 countsByYear W20762437592021 @default.
- W2076243759 countsByYear W20762437592022 @default.
- W2076243759 countsByYear W20762437592023 @default.
- W2076243759 crossrefType "journal-article" @default.
- W2076243759 hasAuthorship W2076243759A5022509741 @default.
- W2076243759 hasAuthorship W2076243759A5037515770 @default.
- W2076243759 hasAuthorship W2076243759A5071269913 @default.
- W2076243759 hasAuthorship W2076243759A5090472809 @default.
- W2076243759 hasConcept C126838900 @default.
- W2076243759 hasConcept C141071460 @default.
- W2076243759 hasConcept C142724271 @default.
- W2076243759 hasConcept C143409427 @default.
- W2076243759 hasConcept C204787440 @default.
- W2076243759 hasConcept C2779480328 @default.
- W2076243759 hasConcept C2779631646 @default.
- W2076243759 hasConcept C2780175798 @default.
- W2076243759 hasConcept C2780375110 @default.
- W2076243759 hasConcept C2780901121 @default.
- W2076243759 hasConcept C2780907711 @default.
- W2076243759 hasConcept C2908684587 @default.
- W2076243759 hasConcept C36454342 @default.
- W2076243759 hasConcept C44575665 @default.
- W2076243759 hasConcept C71924100 @default.
- W2076243759 hasConceptScore W2076243759C126838900 @default.
- W2076243759 hasConceptScore W2076243759C141071460 @default.
- W2076243759 hasConceptScore W2076243759C142724271 @default.
- W2076243759 hasConceptScore W2076243759C143409427 @default.
- W2076243759 hasConceptScore W2076243759C204787440 @default.
- W2076243759 hasConceptScore W2076243759C2779480328 @default.
- W2076243759 hasConceptScore W2076243759C2779631646 @default.
- W2076243759 hasConceptScore W2076243759C2780175798 @default.
- W2076243759 hasConceptScore W2076243759C2780375110 @default.
- W2076243759 hasConceptScore W2076243759C2780901121 @default.
- W2076243759 hasConceptScore W2076243759C2780907711 @default.
- W2076243759 hasConceptScore W2076243759C2908684587 @default.
- W2076243759 hasConceptScore W2076243759C36454342 @default.
- W2076243759 hasConceptScore W2076243759C44575665 @default.
- W2076243759 hasConceptScore W2076243759C71924100 @default.
- W2076243759 hasIssue "7" @default.
- W2076243759 hasLocation W20762437591 @default.
- W2076243759 hasLocation W20762437592 @default.
- W2076243759 hasOpenAccess W2076243759 @default.
- W2076243759 hasPrimaryLocation W20762437591 @default.