Providence nighttime bracing is effective in treatment for adolescent idiopathic scoliosis even in curves larger than 35°

Ane Simony*, Inge Beuschau, Lena Quisth, Stig Mindedahl Jespersen, Leah Yaccat Carreon, Mikkel Osterheden Andersen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review


Summary of Background Data: Since 2006, the Providence nighttime brace has been used for a conservative treatment for scoliosis. Previous studies comparing the outcomes after full-time bracing and nighttime bracing have reported a comparable outcome with curves < 35°. The aim of this study was to report the outcome after treatment in a cohort of adolescent idiopathic scoliosis patients, with curves between 20° and 45°. Methods: One hundred and twenty-four patients with adolescent idiopathic scoliosis were included in this study with Cobb > 20°, remaining growth potential and no previous scoliosis treatment. Providence nighttime treatment, 8 h nightly, was initiated. Treatment was continued until 2 years post-menarcheal for females and until 6-month growth arrest for males. The patients were evaluated using standing radiographs during treatment and 6 and 12 months after termination of bracing. Results: One hundred and twenty-four patients were included; 80 patients terminated brace treatment and were available for follow-up. Mean in-brace correction was 82%, and curve progression was observed in 9 patients. Brace treatment was success full in 89% of the patients, 88% of the patients braced with curves 20°–29°, 93% of the patients braced with 30°–39° and 77% of the patients braced with curves 40°–45°. Five of the 80 AIS patients were referred to surgery: 4 due to progression and 1 due to cosmetic concerns. Conclusions: Providence nighttime braces are an effective treatment for adolescent idiopathic scoliosis patients. This study reports a success rate of 89%, and the results are comparable to full-time treatment with the Boston brace. In-brace correction is crucial in part-time bracing, and we recommend at least 70% curve correction, if part-time bracing should be considered. Graphical abstract: These slides can be retrieved under Electronic Supplementary Material.[Figure not available: see fulltext.].

Original languageEnglish
JournalEuropean Spine Journal
Issue number9
Pages (from-to)2020-2024
Publication statusPublished - Sept 2019


  • Adolescent idiopathic scoliosis
  • Conservative treatment
  • In-brace correction
  • Outcome
  • Providence nighttime bracing
  • Follow-Up Studies
  • Humans
  • Male
  • Treatment Outcome
  • Disease Progression
  • Radiography
  • Conservative Treatment/instrumentation
  • Braces
  • Adolescent
  • Female
  • Orthopedic Procedures/instrumentation
  • Child
  • Scoliosis/diagnostic imaging


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