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European Spine Journal

, Volume 16, Issue 3, pp 381–391 | Cite as

Minimum 10 years follow-up surgical results of adolescent idiopathic scoliosis patients treated with TSRH instrumentation

  • İ. Teoman BenliEmail author
  • Bülent Ates
  • Serdar Akalin
  • Mehmet Citak
  • Alper Kaya
  • Ahmet Alanay
Original Article

Abstract

Last two decades witnessed great advances in the surgical treatment of idiopathic scoliosis. However, the number of studies evaluating the long-term results of these treatment methods is relatively low. During recent years, besides radiological and clinical studies, questionnaires like SRS-22 assessing subjective functional and mental status and life-quality of patients have gained importance for the evaluation of these results. In this study, surgical outcome and Turkish SRS-22 questionnaire results of 109 late-onset adolescent idiopathic scoliosis patients surgically treated with third-generation instrumentation [Texas Scottish Rite Hospital (TSRH) System] and followed for a minimum of 10 years were evaluated. The balance was analyzed clinically and radiologically by the measurement of the lateral trunk shift (LT), shift of head (SH), and shift of stable vertebra (SS). Mean age of the patients was 14.4±1.9 and mean follow-up period was 136.9±12.7 months. When all the patients were included, the preoperative mean Cobb angle of major curves in the frontal plane was 60.8°±17.5°. Major curves that were corrected by 38.7±22.1% in the bending radiograms, postoperatively achieved a correction of 64.0±15.8%. At the last follow-up visit, 10.3°±10.8° of correction loss was recorded in major curves in the frontal plane with 50.5±23.1% final correction rate. Also, the mean postoperative and final kyphosis angles and lumbar lordosis angles were 37.7°±7.4°, 37.0°±8.4°, 37.5°±8.7°, and 36.3°±8.5°, respectively. A statistically significant correction was obtained at the sagittal plane; mean postoperative changes compared to preoperative values were 7.9° and 12.9° for thoracic and lumbar regions, respectively. On the other hand, normal physiological thoracic and lumbar sagittal contours were achieved in 83.5% and 67.9% of the patients, respectively. Postoperatively, a statistically significant correction was obtained in LT, SH, and SS values (P<0.05). Although, none of the patients had completely balanced curves preoperatively, in 95.4% of the patients the curves were found to be completely balanced or clinically well balanced postoperatively. This rate was maintained at the last follow-up visit. Overall, four patients (3.7%) had implant failure. Early superficial infection was observed in three (2.8%) patients. Radiologically presence of significant consolidation, absence of implant failure, and correction loss, and clinical relief of pain were considered as the proof of a posterior solid fusion mass. About ten (9.2%) patients were considered to have pseudoarthrosis: four patients with implant failure and six patients with correction loss over 15° at the frontal plane. About four (3.7%) patients among the first 20 patients had neurological deficit only wake-up test was used for neurological monitoring of these patients. No neurological deficit was observed in the 89 patients for whom intraoperative neurological monitoring with SSEP and TkMMEP was performed. Overall, average scores of SRS-22 questionnaire for general self-image, function, mental status, pain, and satisfaction from treatment were 3.8±0.7, 3.6±0.7, 4.0±0.8, 3.6±0.8, and 4.6±0.3, respectively at the last follow-up visit. Results of about 10 years of follow-up these patients treated with TSRH instrumentation suggest that the method is efficient for the correction of frontal and sagittal plane deformities and trunk balance. In addition, it results in a better life-quality.

Keywords

Idiopathic scoliosis Surgical treatment Instrumentation Long-term follow-up SRS-22 questionnaire 

Notes

Acknowledgments

The authors thank John A. Herring M.D. for helpful review and Joanna Husouski and Nur Sozudogru for professional editing of our manuscript.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • İ. Teoman Benli
    • 1
    Email author
  • Bülent Ates
    • 2
  • Serdar Akalin
    • 2
  • Mehmet Citak
    • 2
  • Alper Kaya
    • 1
  • Ahmet Alanay
    • 3
  1. 1.Department of Orthopedics and Traumatology, Faculty of MedicineUFUK UniversityAnkaraTurkey
  2. 2.Department of Orthopedics and TraumatologySB Ankara Diskapi Yildirim Beyazit HospitalAnkaraTurkey
  3. 3.Department of Orthopedics and TraumatologyHacettepe University Medical FacultyAnkaraTurkey

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