Julio Urrutia1, Pablo Besa2, Felipe Narvaez2, Arturo Meissner-Haecker2, Clemente Rios2, Cristobal Piza2. 1. Department of Orthopaedic Surgery, School of Medicine, Pontificia Universidad Catolica de Chile, Diagonal Paraguay 362, Santiago, Chile. jurrutia@med.puc.cl. 2. Department of Orthopaedic Surgery, School of Medicine, Pontificia Universidad Catolica de Chile, Diagonal Paraguay 362, Santiago, Chile.
Abstract
INTRODUCTION: There is conflicting data on how thoracic kyphosis changes throughout adulthood. We evaluated mid and lower thoracic kyphosis (MTK) in various age groups and the influence of age, sex and coronal curve (CC) on MTK. MATERIAL AND METHODS: We studied 1323 patients 15-80 years-old (54.4% females) previously evaluated with chest radiographs. We established three groups: patients 15-40 (group 1); 41-60 (group 2) and 61-80 years old (group 3). MTK (T5-T12) and CC were measured using Cobb's method. We established differences in MTK between groups using ANOVA with Bonferroni correction. We performed a correlation analysis of MTK with age and CC, and a linear regression analysis to determine if age, sex and CC independently predicted MTK. RESULTS: MTK increased with older age: mean MTK group 1 = 23.4°; group 2 = 27.9° and group 3 = 34.4°, p < 0.01. The increase in MTK was observed in both genders. Scoliosis was more common in females (15.4%) than in males (6.7%), p < 0.01. MTK was correlated with age (r = 0.4; p < 0.01) and slightly correlated with CC (r = 0.07, p < 0.01). MTK was larger in females than in males (29.1° vs. 27.6°, p < 0.01). Age (ß-coefficient = 0.26) and CC (ß-coefficient = 0.14), but not sex, independently influenced MTK in the regression analysis. CONCLUSION: MTK increases with advancing age during adulthood in both genders; CC, but not sex, was an independent predictor of MTK.
INTRODUCTION: There is conflicting data on how thoracic kyphosis changes throughout adulthood. We evaluated mid and lower thoracic kyphosis (MTK) in various age groups and the influence of age, sex and coronal curve (CC) on MTK. MATERIAL AND METHODS: We studied 1323 patients 15-80 years-old (54.4% females) previously evaluated with chest radiographs. We established three groups: patients 15-40 (group 1); 41-60 (group 2) and 61-80 years old (group 3). MTK (T5-T12) and CC were measured using Cobb's method. We established differences in MTK between groups using ANOVA with Bonferroni correction. We performed a correlation analysis of MTK with age and CC, and a linear regression analysis to determine if age, sex and CC independently predicted MTK. RESULTS: MTK increased with older age: mean MTK group 1 = 23.4°; group 2 = 27.9° and group 3 = 34.4°, p < 0.01. The increase in MTK was observed in both genders. Scoliosis was more common in females (15.4%) than in males (6.7%), p < 0.01. MTK was correlated with age (r = 0.4; p < 0.01) and slightly correlated with CC (r = 0.07, p < 0.01). MTK was larger in females than in males (29.1° vs. 27.6°, p < 0.01). Age (ß-coefficient = 0.26) and CC (ß-coefficient = 0.14), but not sex, independently influenced MTK in the regression analysis. CONCLUSION: MTK increases with advancing age during adulthood in both genders; CC, but not sex, was an independent predictor of MTK.
Authors: Walter S Bartynski; Matthew T Heller; Stephen Z Grahovac; William E Rothfus; Marcia Kurs-Lasky Journal: AJNR Am J Neuroradiol Date: 2005-09 Impact factor: 3.825
Authors: Deborah M Kado; Mei-Hua Huang; Arun S Karlamangla; Peggy Cawthon; Wendy Katzman; Teresa A Hillier; Kristine Ensrud; Steven R Cummings Journal: J Bone Miner Res Date: 2013-01 Impact factor: 6.741
Authors: Klaus John Schnake; Thomas R Blattert; Patrick Hahn; Alexander Franck; Frank Hartmann; Bernhard Ullrich; Akhil Verheyden; Sven Mörk; Volker Zimmermann; Oliver Gonschorek; Michael Müller; Sebastian Katscher; Andre El Saman; Gholam Pajenda; Robert Morrison; Christian Schinkel; Stefan Piltz; Axel Partenheimer; Christian W Müller; Erol Gercek; Michael Scherer; Nabila Bouzraki; Frank Kandziora Journal: Global Spine J Date: 2018-09-07