Revision Strategies for Harrington Rod Instrumentation : Radiographic Outcomes and Complications
STUDY DESIGN: Retrospective case series.
OBJECTIVE: The purpose of this study is to evaluate the clinical and radiographic outcomes following revision surgery following Harrington rod instrumentation.
METHODS: Patients who underwent revision surgery with a minimum of 1-year follow-up for flatback syndrome following Harrington rod instrumentation for adolescent idiopathic scoliosis were identified from a multicenter dataset. Baseline demographics and intraoperative information were obtained. Preoperative, initial postoperative, and most recent spinopelvic parameters were compared. Postoperative complications and reoperations were subsequently evaluated.
RESULTS: A total of 41 patients met the inclusion criteria with an average follow-up of 27.7 months. Overall, 14 patients (34.1%) underwent a combined anterior-posterior fusion, and 27 (65.9%) underwent an osteotomy for correction. Preoperatively, the most common lower instrumented vertebra (LIV) was at L3 and L4 (61%), whereas 85% had a LIV to the pelvis after revision. The mean preoperative pelvic incidence-lumbar lordosis mismatch and C7 sagittal vertical axis were 23.7° and 89.6 mm. This was corrected to 8.1° and 28.9 mm and maintained to 9.04° and 34.4 mm at latest follow-up. Complications included deep wound infection (12.2%), durotomy (14.6%), implant related failures (14.6%), and temporary neurologic deficits (22.0%). Eight patients underwent further revision surgery at an average of 7.4 months after initial revision.
CONCLUSIONS: There are multiple surgical techniques to address symptomatic flatback syndrome in patients with previous Harrington rod instrumentation for adolescent idiopathic scoliosis. At an average of 27.7 months follow-up, pelvic incidence-lumbar lordosis mismatch and C7 sagittal vertical axis can be successfully corrected and maintained. However, complication and reoperation rates remain high.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2022 |
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Erschienen: |
2022 |
Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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Enthalten in: |
Global spine journal - 12(2022), 4 vom: 16. Mai, Seite 654-662 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Louie, Philip K [VerfasserIn] |
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Links: |
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Themen: |
Adjacent segment degeneration |
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Anmerkungen: |
Date Revised 16.07.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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doi: |
10.1177/2192568220960759 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM315711396 |
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500 | |a Citation Status PubMed-not-MEDLINE | ||
520 | |a STUDY DESIGN: Retrospective case series | ||
520 | |a OBJECTIVE: The purpose of this study is to evaluate the clinical and radiographic outcomes following revision surgery following Harrington rod instrumentation | ||
520 | |a METHODS: Patients who underwent revision surgery with a minimum of 1-year follow-up for flatback syndrome following Harrington rod instrumentation for adolescent idiopathic scoliosis were identified from a multicenter dataset. Baseline demographics and intraoperative information were obtained. Preoperative, initial postoperative, and most recent spinopelvic parameters were compared. Postoperative complications and reoperations were subsequently evaluated | ||
520 | |a RESULTS: A total of 41 patients met the inclusion criteria with an average follow-up of 27.7 months. Overall, 14 patients (34.1%) underwent a combined anterior-posterior fusion, and 27 (65.9%) underwent an osteotomy for correction. Preoperatively, the most common lower instrumented vertebra (LIV) was at L3 and L4 (61%), whereas 85% had a LIV to the pelvis after revision. The mean preoperative pelvic incidence-lumbar lordosis mismatch and C7 sagittal vertical axis were 23.7° and 89.6 mm. This was corrected to 8.1° and 28.9 mm and maintained to 9.04° and 34.4 mm at latest follow-up. Complications included deep wound infection (12.2%), durotomy (14.6%), implant related failures (14.6%), and temporary neurologic deficits (22.0%). Eight patients underwent further revision surgery at an average of 7.4 months after initial revision | ||
520 | |a CONCLUSIONS: There are multiple surgical techniques to address symptomatic flatback syndrome in patients with previous Harrington rod instrumentation for adolescent idiopathic scoliosis. At an average of 27.7 months follow-up, pelvic incidence-lumbar lordosis mismatch and C7 sagittal vertical axis can be successfully corrected and maintained. However, complication and reoperation rates remain high | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a adjacent segment degeneration | |
650 | 4 | |a adult spinal deformity | |
650 | 4 | |a harrington rod instrumentation | |
650 | 4 | |a revision surgery | |
700 | 1 | |a Iyer, Sravisht |e verfasserin |4 aut | |
700 | 1 | |a Khanna, Krishn |e verfasserin |4 aut | |
700 | 1 | |a Harada, Garrett K |e verfasserin |4 aut | |
700 | 1 | |a Khalid, Alina |e verfasserin |4 aut | |
700 | 1 | |a Gupta, Munish |e verfasserin |4 aut | |
700 | 1 | |a Burton, Douglas |e verfasserin |4 aut | |
700 | 1 | |a Shaffrey, Christopher |e verfasserin |4 aut | |
700 | 1 | |a Lafage, Renaud |e verfasserin |4 aut | |
700 | 1 | |a Lafage, Virginie |e verfasserin |4 aut | |
700 | 1 | |a Dewald, Christopher J |e verfasserin |4 aut | |
700 | 1 | |a Schwab, Frank J |e verfasserin |4 aut | |
700 | 1 | |a Kim, Han Jo |e verfasserin |4 aut | |
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