title: SCHEUERMANN'S KYPHOSIS: COMPARISON BETWEEN THE POSTERIOR APPROACH ASSOCIATED WITH SMITH-PETERSEN OSTEOTOMY AND COMBINED ANTERIOR-POSTERIOR FUSION.
abstract: OBJECTIVE
  Surgical treatment of Scheuermann's kyphosis (SK) remains a subject under discussion. In view of the controversy over the best form of surgical tr otomy.
  
  
  METHODS
  This was a descriptive case-control study with cross-sectional analysis. Twenty-eight patients, split into two groups conducted at different times, were evaluated.
  
  
  RESULTS
  The first group comprised patients treated using the double approach, with an average age of 19 years, preoperative kyphosis of 77.6°, postoperative kyphosis of 35.8° and average correction of 53.2%. The second group comprised patients treated using the posterior route associated with Smith-Petersen osteotomy, with a mean age of 27.3 years, preoperative kyphosis of 72.9°, postoperative kyphosis of 44.3° and average correction of 39.3%. Analysis between the two groups showed statistically significant differences in the following variables: age (p = 0.02), postoperative kyphosis (p = 0.04) and degree and percentage of kyphosis correction (p = 0.001). There was no difference concerning preoperative kyphosis (p = 0.33). In the assessment of postoperative pain (VAS), the first group presented an average of 0.6, versus 0.5 in the second group. There were only minor complications: seven in the first group and two in the second.
  
  
  CONCLUSIONS
  The two surgical techniques studied proved to be adequate for treating SK. In the present study, the deformity correction was greater in the first group, while the pain VAS results were better in the second group, with lower incidence of complications.
authors.affiliation: Third-year Orthopedics and Traumatology Resident at the Professor Matta Machado Clinic of Hospital Baleia/Fundação Benjamin Guimarães - Belo Horizonte, MG, Brazil.
authors.forename: Eduardo Frois
authors.initials: EF
authors.lastname: Temponi
authors.affiliation: Coordinator of the Spine Group of Instituto de Previdência dos Servidores de Minas Gerais - IPSEMG. Preceptor of the Spine Group of the Professor Matta Machado Clinic of Hospital da Baleia/Fundação Benjamin Guimarães; Master's Degree in Nuclear Sciences and Techniques from the Department of Nuclear Engineering of Universidade Federal de Minas Gerais - UFMG - Belo Horizonte, MG, Brazil.
authors.forename: Rodrigo D'Alessandro
authors.initials: RD
authors.lastname: de Macedo
authors.affiliation: Coordinator of the Spine Group of Professor Matta Machado's Service at Hospital da Baleia/Benjamin Guimarães Foundation, Belo Horizonte, MG, Brazil.
authors.forename: Luiz Olímpio Garcia
authors.initials: LO
authors.lastname: Pedrosa
authors.affiliation: Preceptor of the Spine Group of the Professor Matta Machado Clinic of Hospital da Baleia/Fundação Benjamin Guimarães - Belo Horizonte, MG, Brazil.
authors.forename: Bruno Pinto Coelho
authors.initials: BP
authors.lastname: Fontes
keywords: Kyphosis; Osteotomy; Scheuermann Disease; Spinal Fusion; Spine