Adolescent Idiopathic Scoliosis Treated With Open Instrumented Anterior Spinal Fusion: Five-Year Follow-up

A multicenter prospective database was queried for patients who underwent open instrumented anterior spinal fusion (OASF) for treatment of primary thoracic (Lenke 1) adolescent idiopathic scoliosis (AIS). To present the intermediate radiographic and pulmonary function testing (PFT) data from patient...

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Veröffentlicht in:Spine (Philadelphia, Pa. 1976) Pa. 1976), 2010, Vol.35 (1), p.64-70
Hauptverfasser: TIS, John E, O'BRIEN, Michael F, NEWTON, Peter O, LENKE, Lawrence G, CLEMENTS, David H, HARMS, Jürgen, BETZ, Randal R
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container_start_page 64
container_title Spine (Philadelphia, Pa. 1976)
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creator TIS, John E
O'BRIEN, Michael F
NEWTON, Peter O
LENKE, Lawrence G
CLEMENTS, David H
HARMS, Jürgen
BETZ, Randal R
description A multicenter prospective database was queried for patients who underwent open instrumented anterior spinal fusion (OASF) for treatment of primary thoracic (Lenke 1) adolescent idiopathic scoliosis (AIS). To present the intermediate radiographic and pulmonary function testing (PFT) data from patients who underwent OASF using modern, rigid instrumentation. Anterior spinal fusion is an excellent method to correct the 3-dimensional deformity produced by AIS. Modern instrumentation consisting of stronger metals, unthreaded rods, and dual rod systems should theoretically decrease the incidence of rod breakage, pseudarthrosis, and loss of correction seen in earlier OASF studies. The paucity of intermediate and long-term data prevents surgeons and patients from making an informed decision regarding the true incidence of these complications. Of 101 potential patients who underwent OASF with a minimum 5-year follow-up, 85 (85%) were studied. Standing radiographs were analyzed before surgery and at first standing erect, 2-year, and 5-year follow-up. PFT data were collected before surgery and at 5 years after surgery. Complete 5-year follow-up was obtained in 85 patients. Five years after surgery, the mean coronal correction was 26 degrees (51%; P < 0.05) and the thoracolumbar/lumbar curve improved 16 degrees (51%). There was a 9-degree (P < 0.001) increase in kyphosis, and there were 9 patients (11%) in whom the C7 plumb line translated >2 cm. There was a 6.7% decrease in predicted FEV1 over the 5-year period, from 75.5% +/- 13% before surgery to 68.8% +/- 2% at 5-year follow-up (P = 0.007); however, there was no significant change in FVC. There were 3 significant adverse events: 1 implant breakage requiring reoperation and 2 cases of progression of the main thoracic curve requiring reoperation. OASF is a reproducible and safe method to treat thoracic AIS. It provides good coronal and sagittal correction of the main thoracic and compensatory thoracolumbar/lumbar curves that is maintained with intermediate term follow-up. In skeletally immature children, this technique can cause an increase in kyphosis beyond normal values, and less correction of kyphosis should be considered during instrumentation. As with any procedure that employs a thoracotomy, pulmonary function is mildly decreased at final follow-up.
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To present the intermediate radiographic and pulmonary function testing (PFT) data from patients who underwent OASF using modern, rigid instrumentation. Anterior spinal fusion is an excellent method to correct the 3-dimensional deformity produced by AIS. Modern instrumentation consisting of stronger metals, unthreaded rods, and dual rod systems should theoretically decrease the incidence of rod breakage, pseudarthrosis, and loss of correction seen in earlier OASF studies. The paucity of intermediate and long-term data prevents surgeons and patients from making an informed decision regarding the true incidence of these complications. Of 101 potential patients who underwent OASF with a minimum 5-year follow-up, 85 (85%) were studied. Standing radiographs were analyzed before surgery and at first standing erect, 2-year, and 5-year follow-up. PFT data were collected before surgery and at 5 years after surgery. Complete 5-year follow-up was obtained in 85 patients. Five years after surgery, the mean coronal correction was 26 degrees (51%; P &lt; 0.05) and the thoracolumbar/lumbar curve improved 16 degrees (51%). There was a 9-degree (P &lt; 0.001) increase in kyphosis, and there were 9 patients (11%) in whom the C7 plumb line translated &gt;2 cm. There was a 6.7% decrease in predicted FEV1 over the 5-year period, from 75.5% +/- 13% before surgery to 68.8% +/- 2% at 5-year follow-up (P = 0.007); however, there was no significant change in FVC. There were 3 significant adverse events: 1 implant breakage requiring reoperation and 2 cases of progression of the main thoracic curve requiring reoperation. OASF is a reproducible and safe method to treat thoracic AIS. It provides good coronal and sagittal correction of the main thoracic and compensatory thoracolumbar/lumbar curves that is maintained with intermediate term follow-up. 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Diseases due to physical agents ; Lumbar Vertebrae - diagnostic imaging ; Lumbar Vertebrae - surgery ; Male ; Medical sciences ; Nervous system (semeiology, syndromes) ; Neurology ; Prospective Studies ; Prosthesis Failure ; Radiography ; Reoperation ; Scoliosis - diagnostic imaging ; Scoliosis - surgery ; Spinal Fusion - adverse effects ; Spinal Fusion - methods ; Spine - diagnostic imaging ; Spine - surgery ; Thoracic Vertebrae - diagnostic imaging ; Thoracic Vertebrae - surgery ; Traumas. 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To present the intermediate radiographic and pulmonary function testing (PFT) data from patients who underwent OASF using modern, rigid instrumentation. Anterior spinal fusion is an excellent method to correct the 3-dimensional deformity produced by AIS. Modern instrumentation consisting of stronger metals, unthreaded rods, and dual rod systems should theoretically decrease the incidence of rod breakage, pseudarthrosis, and loss of correction seen in earlier OASF studies. The paucity of intermediate and long-term data prevents surgeons and patients from making an informed decision regarding the true incidence of these complications. Of 101 potential patients who underwent OASF with a minimum 5-year follow-up, 85 (85%) were studied. Standing radiographs were analyzed before surgery and at first standing erect, 2-year, and 5-year follow-up. PFT data were collected before surgery and at 5 years after surgery. Complete 5-year follow-up was obtained in 85 patients. Five years after surgery, the mean coronal correction was 26 degrees (51%; P &lt; 0.05) and the thoracolumbar/lumbar curve improved 16 degrees (51%). There was a 9-degree (P &lt; 0.001) increase in kyphosis, and there were 9 patients (11%) in whom the C7 plumb line translated &gt;2 cm. There was a 6.7% decrease in predicted FEV1 over the 5-year period, from 75.5% +/- 13% before surgery to 68.8% +/- 2% at 5-year follow-up (P = 0.007); however, there was no significant change in FVC. There were 3 significant adverse events: 1 implant breakage requiring reoperation and 2 cases of progression of the main thoracic curve requiring reoperation. OASF is a reproducible and safe method to treat thoracic AIS. It provides good coronal and sagittal correction of the main thoracic and compensatory thoracolumbar/lumbar curves that is maintained with intermediate term follow-up. 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Diseases due to physical agents</subject><subject>Lumbar Vertebrae - diagnostic imaging</subject><subject>Lumbar Vertebrae - surgery</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Nervous system (semeiology, syndromes)</subject><subject>Neurology</subject><subject>Prospective Studies</subject><subject>Prosthesis Failure</subject><subject>Radiography</subject><subject>Reoperation</subject><subject>Scoliosis - diagnostic imaging</subject><subject>Scoliosis - surgery</subject><subject>Spinal Fusion - adverse effects</subject><subject>Spinal Fusion - methods</subject><subject>Spine - diagnostic imaging</subject><subject>Spine - surgery</subject><subject>Thoracic Vertebrae - diagnostic imaging</subject><subject>Thoracic Vertebrae - surgery</subject><subject>Traumas. Diseases due to physical agents</subject><subject>Treatment Outcome</subject><issn>0362-2436</issn><issn>1528-1159</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpdkN9rFDEQx4Mo7Vn7H0jJi_i0NZPJ_urbtXh6UCh4LeLTkk1maUpus012Ff97U3pW8CUThs93hvkw9h7EOYi2_nT5bXcuegFICA0YpYdSvmIrKGVTAJTta7YSWMlCKqyO2duUHoQQFUJ7xI6lEEq2Zb1iD2sbPCVD48y31oVJz_fO8J0J3oXkEr-NpGey_Lub7_nNRCPfjmmOyz4ncnud3-hC5LvJjdrzzZJcGC_4xv2k4gfpyDfB-_CrWKZ37M2gfaLTQz1hd5vPt1dfi-ubL9ur9XVhENRc4GAHq0g1RpOyphXU1soKhVC1QvZQgyprwkZVWPWl0MpCS_k_lA1I7BFP2MfnuVMMjwuludu7fKD3eqSwpK5GJaGRqDKpnkkTQ0qRhm6Kbq_j7w5E9yS5y5K7_yXn2NlhwdLvyb6E_lrNwIcDoJPRfoh6NC794yRiVcoK_wDapoYf</recordid><startdate>2010</startdate><enddate>2010</enddate><creator>TIS, John E</creator><creator>O'BRIEN, Michael F</creator><creator>NEWTON, Peter O</creator><creator>LENKE, Lawrence G</creator><creator>CLEMENTS, David H</creator><creator>HARMS, Jürgen</creator><creator>BETZ, Randal R</creator><general>Lippincott Williams &amp; Wilkins</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>2010</creationdate><title>Adolescent Idiopathic Scoliosis Treated With Open Instrumented Anterior Spinal Fusion: Five-Year Follow-up</title><author>TIS, John E ; O'BRIEN, Michael F ; NEWTON, Peter O ; LENKE, Lawrence G ; CLEMENTS, David H ; HARMS, Jürgen ; BETZ, Randal R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c314t-3fdfd4e48cae4dc90e974d04316902b171457e384636b50a4d19e636f58123b33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adolescent</topic><topic>Analysis of Variance</topic><topic>Biological and medical sciences</topic><topic>Bone Nails - adverse effects</topic><topic>Cerebrospinal fluid. Meninges. Spinal cord</topic><topic>Child</topic><topic>Databases, Factual</topic><topic>Disease Progression</topic><topic>Female</topic><topic>Follow-Up Studies</topic><topic>Humans</topic><topic>Injuries of the nervous system and the skull. Diseases due to physical agents</topic><topic>Lumbar Vertebrae - diagnostic imaging</topic><topic>Lumbar Vertebrae - surgery</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Nervous system (semeiology, syndromes)</topic><topic>Neurology</topic><topic>Prospective Studies</topic><topic>Prosthesis Failure</topic><topic>Radiography</topic><topic>Reoperation</topic><topic>Scoliosis - diagnostic imaging</topic><topic>Scoliosis - surgery</topic><topic>Spinal Fusion - adverse effects</topic><topic>Spinal Fusion - methods</topic><topic>Spine - diagnostic imaging</topic><topic>Spine - surgery</topic><topic>Thoracic Vertebrae - diagnostic imaging</topic><topic>Thoracic Vertebrae - surgery</topic><topic>Traumas. Diseases due to physical agents</topic><topic>Treatment Outcome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>TIS, John E</creatorcontrib><creatorcontrib>O'BRIEN, Michael F</creatorcontrib><creatorcontrib>NEWTON, Peter O</creatorcontrib><creatorcontrib>LENKE, Lawrence G</creatorcontrib><creatorcontrib>CLEMENTS, David H</creatorcontrib><creatorcontrib>HARMS, Jürgen</creatorcontrib><creatorcontrib>BETZ, Randal R</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Spine (Philadelphia, Pa. 1976)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>TIS, John E</au><au>O'BRIEN, Michael F</au><au>NEWTON, Peter O</au><au>LENKE, Lawrence G</au><au>CLEMENTS, David H</au><au>HARMS, Jürgen</au><au>BETZ, Randal R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adolescent Idiopathic Scoliosis Treated With Open Instrumented Anterior Spinal Fusion: Five-Year Follow-up</atitle><jtitle>Spine (Philadelphia, Pa. 1976)</jtitle><addtitle>Spine (Phila Pa 1976)</addtitle><date>2010</date><risdate>2010</risdate><volume>35</volume><issue>1</issue><spage>64</spage><epage>70</epage><pages>64-70</pages><issn>0362-2436</issn><eissn>1528-1159</eissn><coden>SPINDD</coden><abstract>A multicenter prospective database was queried for patients who underwent open instrumented anterior spinal fusion (OASF) for treatment of primary thoracic (Lenke 1) adolescent idiopathic scoliosis (AIS). To present the intermediate radiographic and pulmonary function testing (PFT) data from patients who underwent OASF using modern, rigid instrumentation. Anterior spinal fusion is an excellent method to correct the 3-dimensional deformity produced by AIS. Modern instrumentation consisting of stronger metals, unthreaded rods, and dual rod systems should theoretically decrease the incidence of rod breakage, pseudarthrosis, and loss of correction seen in earlier OASF studies. The paucity of intermediate and long-term data prevents surgeons and patients from making an informed decision regarding the true incidence of these complications. Of 101 potential patients who underwent OASF with a minimum 5-year follow-up, 85 (85%) were studied. Standing radiographs were analyzed before surgery and at first standing erect, 2-year, and 5-year follow-up. PFT data were collected before surgery and at 5 years after surgery. Complete 5-year follow-up was obtained in 85 patients. Five years after surgery, the mean coronal correction was 26 degrees (51%; P &lt; 0.05) and the thoracolumbar/lumbar curve improved 16 degrees (51%). There was a 9-degree (P &lt; 0.001) increase in kyphosis, and there were 9 patients (11%) in whom the C7 plumb line translated &gt;2 cm. There was a 6.7% decrease in predicted FEV1 over the 5-year period, from 75.5% +/- 13% before surgery to 68.8% +/- 2% at 5-year follow-up (P = 0.007); however, there was no significant change in FVC. There were 3 significant adverse events: 1 implant breakage requiring reoperation and 2 cases of progression of the main thoracic curve requiring reoperation. OASF is a reproducible and safe method to treat thoracic AIS. It provides good coronal and sagittal correction of the main thoracic and compensatory thoracolumbar/lumbar curves that is maintained with intermediate term follow-up. In skeletally immature children, this technique can cause an increase in kyphosis beyond normal values, and less correction of kyphosis should be considered during instrumentation. As with any procedure that employs a thoracotomy, pulmonary function is mildly decreased at final follow-up.</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams &amp; Wilkins</pub><pmid>20042957</pmid><doi>10.1097/BRS.0b013e3181c4af52</doi><tpages>7</tpages></addata></record>
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subjects Adolescent
Analysis of Variance
Biological and medical sciences
Bone Nails - adverse effects
Cerebrospinal fluid. Meninges. Spinal cord
Child
Databases, Factual
Disease Progression
Female
Follow-Up Studies
Humans
Injuries of the nervous system and the skull. Diseases due to physical agents
Lumbar Vertebrae - diagnostic imaging
Lumbar Vertebrae - surgery
Male
Medical sciences
Nervous system (semeiology, syndromes)
Neurology
Prospective Studies
Prosthesis Failure
Radiography
Reoperation
Scoliosis - diagnostic imaging
Scoliosis - surgery
Spinal Fusion - adverse effects
Spinal Fusion - methods
Spine - diagnostic imaging
Spine - surgery
Thoracic Vertebrae - diagnostic imaging
Thoracic Vertebrae - surgery
Traumas. Diseases due to physical agents
Treatment Outcome
title Adolescent Idiopathic Scoliosis Treated With Open Instrumented Anterior Spinal Fusion: Five-Year Follow-up
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