Predictive factors of Osaka Medical College (OMC) brace treatment in patients with adolescent idiopathic scoliosis

Scoliosis

Naoya Tajima¹  Etsuo Chosa³  Kiyoshi Higa³  Hideaki Hamanaka³  Naoki Inomata³  Hiroshi Kuroki² 

[1] Department of Orthopaedic Surgery, Nozaki Higashi Hospital, Miyazaki, Japan;Department of Orthopaedic Surgery, National Hospital Organization Miyazaki Higashi Hospital, 4374-1 Tayoshi Ooaza, Miyazaki 880-0911, Japan;Department of Orthopaedic Surgery, University of Miyazaki Faculty of Medicine, Miyazaki, Japan

关键词: Scoliosis Research Society (SRS);    Standardized inclusion and assessment criteria;    Predictive factor;    Conservative treatment;    Osaka Medical College (OMC) brace;    Adolescent idiopathic scoliosis (AIS);   

Others  :  1174917
DOI  :  10.1186/s13013-015-0038-7

 received in 2015-01-20, accepted in 2015-03-31,  发布年份 2015

【 摘 要 】

Background

Factors influencing clinical course of brace treatment apply to adolescent idiopathic scoliosis (AIS) patients remain unclear. By making clear them, we may select suitable patients for brace treatment and alleviate overtreatment. The purpose of this study was to explore predictive factors of Osaka Medical College (OMC) brace treatment for AIS patients in accordance with the modified standardized criteria proposed by the Scoliosis Research Society (SRS) committee on bracing and non-operative management.

Methods

From 1999 through 2010, 31 consecutive patients with AIS who were newly prescribed the OMC brace and met the modified SRS criteria were studied. The study included 2 boys and 29 girls with a mean age of 12 years and 0 month. We investigated the clinical course and evaluated the impacts of compliance, initial brace correction rate, curve flexibility, curve pattern, Cobb angle, chronological age, and Risser stage to clinical outcomes. The clinical course of the brace treatment was considered progression if ≥6° curvature increase occurred and improvement if ≥6° curvature decrease occurred according to SRS judgment criteria.

Results

The curve progressed in 10 cases, the curve improved in 6 cases, and the curve remained unchanged in 15 cases (success rate: 67.7%). The success rate was statistically higher in the patient group whose instruction adherence rate was greater than 50% as compared with in those 50% or less. Initial brace correction rate, curve flexibility, curve pattern, the magnitude of Cobb angle, chronological age, and Risser stage did not have any significant effect for clinical courses. However, success rate was insignificantly higher in the cases whose Cobb angle in brace was smaller than that in hanging position.

Conclusions

OMC brace treatment could alter the natural history of AIS, however, that was significantly affected by compliance of brace wear.

【 授权许可】

   
2015 Kuroki et al.; licensee BioMed Central.

【 图 表 】

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

【 参考文献 】

• [1]Nachemson AL, Peterson LE: Effectiveness of treatment with a brace in girls who have adolescent idiopathic scoliosis. J Bone Joint Surg 1995, 77A:815-22.
• [2]Rowe DE, Bernstein SM, Riddick MF, Adler F, Emans JB, Gardner-Bonneau D: A meta-analysis of the efficacy of non-operative treatments for idiopathic scoliosis. J Bone Joint Surg 1997, 79A:664-74.
• [3]Lange JE, Steen H, Brox JI: Long-term results after Boston brace treatment in adolescent idiopathic scoliosis. Scoliosis 2009, 4:17. BioMed Central Full Text
• [4]Goldberg CJ, Moore DP, Fogarty EE, Dowling FE: Adolescent idiopathic scoliosis: the effect of brace treatment on the incidence of surgery. Spine 2001, 26:42-7.
• [5]Dolan LA, Weinstein SL: Surgical rates after observation and bracing for adolescent idiopathic scoliosis. Spine 2007, 32:S91-100.
• [6]Lou E, Hill D, Raso J: Brace treatment for adolescent idiopathic scoliosis. Stud Health Technol Inform 2008, 135:265-73.
• [7]Heary RF, Bono CM, Kumar S: Bracing for scoliosis. Neurosurgery 2008, 63:A125-30.
• [8]Richards BS, Bernstein RM, D’Amato CR, Thompson GH: Standardization of criteria for adolescent idiopathic scoliosis brace studies: SRS Committee on Bracing and Nonoperative Management. Spine 2005, 30:2068-75.
• [9]Kuroki H, Inomata N, Hamanaka H, Higa K, Chosa E, Tajima N. Efficacy of the Osaka Medical College (OMC) brace in the treatment of adolescent idiopathic scoliosis following Scoliosis Research Society brace studies criteria. Scoliosis, in press.
• [10]Endo O, Onomura T, Yamamoto S, Yamaguchi R, Kato M, Watanabe H, et al.: Scoliosis treatment with the Osaka Medical College type brace (OMC-brace). In Seikeigeka Mook 18. Edited by Itami Y, Nishio A. Kanehara syuppan Inc, Tokyo, Japan; 1981:134-49. in Japanese, the title is literally translated
• [11]Kuroki H, Inomata N, Hamanaka H, Chosa E, Tajima N: Significance of hanging total spine x-ray to estimate the indicative correction angle by brace wearing in idiopathic scoliosis patients. Scoliosis 2012, 7:8. BioMed Central Full Text
• [12]Carragee EJ, Lehman RA Jr: Spinal bracing in adolescent idiopathic scoliosis. N Engl J Med 2013, 369:1558-60.
• [13]Vijvermans V, Fabry G, Nijs J: Factors determining the final outcome of brace treatment of idiopathic scoliosis with the Boston brace: a longitudinal study. J Pediatr Orthop 2007, 13B:143-9.
• [14]Weinstein SL, Dolan LA, Wright JG, Dobbs MB: Design of the bracing in adolescent idiopathic trial (BrAIST). Spine 2013, 38:1832-41.
• [15]Negrini S, Atanasio S, Fusco C, Zaina F: Effectiveness of complete conservative treatment for adolescent idiopathic scoliosis (bracing and exercises) based on SOSORT management criteria: results according to the SRS criteria for bracing studies - SOSORT award 2009 winner. Scoliosis 2009, 4:19. BioMed Central Full Text
• [16]Lee CS, Hwang CJ, Kim DJ, Kim JH, Kim YT, Lee MY, et al.: Effectiveness of the Charleston night-time bending brace in the treatment of adolescent idiopathic scoliosis. J Pediatr Orthop 2012, 32:368-72.
• [17]Weinstein SL, Dolan LA, Wright JG, Dobbs MB: Effects of bracing in adolescents with idiopathic scoliosis. N Engl J Med 2013, 369:1512-21.
• [18]Sun X, Wang B, Qiu Y, Zhu ZZ, Zhu F, Yu Y, et al.: Outcomes and predictors of brace treatment for girls with adolescent idiopathic scoliosis. Orthop Surg 2010, 2:285-90.
• [19]Lonstein JE, Carlson JM: The prediction of curve progression in untreated idiopathic scoliosis during growth. J Bone Joint Surg 1984, 66A:1061-71.
• [20]Soucacos PN, Zacharis K, Soultanis K, Galalis J, Xenakis T, Beris A: Risk factors for idiopathic scoliosis: review of a 6-year prospective study. Orthopaedics 2000, 23:833-8.
• [21]Ylikoski M: Growth and progression of adolescent idiopathic scoliosis in girls. J Pediatr Orthop 2005, 14B:320-4.
• [22]O’Neill PJ, Karol LA, Shindle MK, Elerson EE, BrintzenhofeSzoc KM, Katz DE, et al.: Decreased orthotic effectiveness in overweight patients with adolescent idiopathic scoliosis. J Bone Joint Surg 2005, 87A:1069-74.
• [23]Rahman T, Bowen JR, Takemitsu M, Scott C: The association between brace compliance and outcome for patients with idiopathic scoliosis. J Pediatr Orthop 2005, 25:420-2.
• [24]Katz DE, Herring JA, Browne RH, Kelly DM, Birch JG: Brace wear control of curve progression in adolescent idiopathic scoliosis. J Bone Joint Surg 2010, 92A:1343-52.
• [25]Karol LA: Effectiveness of bracing in male patients with idiopathic scoliosis. Spine 2001, 26:2001-5.
• [26]Kuroki H, Kubo S, Chosa E, Tajima N: Compliance of brace treatment for patients with idiopathic scoliosis. J Jpn Scoliosis Soc 2007, 22:42-6. (in Japanese)
• [27]Sponseller PD: Bracing for adolescent idiopathic scoliosis in practice today. J Pediatr Orthop 2011, 31:S53-60.
• [28]Ward K, Ogilvie JW, Singleton MV, Chettier R, Engler G, Nelson LM: Validation of DNA-based prognostic testing to predict spinal curve progression in adolescent idiopathic scoliosis. Spine 2010, 35:E1455-64.
• [29]Bohl DD, Telles CJ, Ruiz FK, Badrinath R, DeLuca PA, GrauerJN. A genetic test predicts Providence brace success for adolescent idiopathic scoliosis when failure is defined as progression to greater than 45 degrees. J Spinal Disord Tech. 2014 Mar 24 [Epub ahead of print].