Hideyuki Arima1,2,3, John R Dimar4,5, Steven D Glassman4,5, Yu Yamato6, Yukihiro Matsuyama6, Jean-Marc Mac-Thiong7,8,9, Pierre Roussouly10, Brandon Cook11, Leah Y Carreon4. 1. Norton Leatherman Spine Center, 210 East Gray Street, Suite 900, Louisville, KY, 40202, USA. arihidee@gmail.com. 2. Department of Orthopedic Surgery, University of Louisville School of Medicine, 550 S. Jackson Street, 1st Floor ACB, Louisville, KY, 40202, USA. arihidee@gmail.com. 3. Department of Orthopedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan. arihidee@gmail.com. 4. Norton Leatherman Spine Center, 210 East Gray Street, Suite 900, Louisville, KY, 40202, USA. 5. Department of Orthopedic Surgery, University of Louisville School of Medicine, 550 S. Jackson Street, 1st Floor ACB, Louisville, KY, 40202, USA. 6. Department of Orthopedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan. 7. Department of Surgery, Faculty of Medicine, University of Montreal, Montreal, QC, Canada. 8. Department of Surgery, CHU Sainte-Justine, Montreal, QC, Canada. 9. Department of Surgery, Hôpital du Sacré-Coeur de Montréal, Montreal, QC, Canada. 10. Department of Orthopedic Surgery, Centre Médico-Chirurgical de Réadaptation des Massues, Lyon, France. 11. Department of Orthopedic Surgery, Ochsner Medical Center, New Orleans, LA, USA.
Abstract
PURPOSE: Ethnic differences in spino-pelvic parameters among a healthy population are poorly defined in the literature. The purpose of this study was to document sagittal spino-pelvic parameters in a sample of African Americans and to compare them with previously reported data for Caucasians and Asians. METHODS: African American individuals without spine pathology who had standing lateral radiographs were identified. Radiographs were measured to determine the following parameters: lumbar lordosis (LL), pelvic incidence (PI), pelvic tilt (PT) and sacral slope (SS). Data of adult subjects were compared with those previously published for Caucasians (n = 709) and Asians (n = 312). RESULTS: These measurements (LL, PI, PT, and SS) obtained for the 36 African American subjects aged 18 years or older [15 men and 21 women; mean age 26.6 ± 8.7 range (18-53)] The mean LL, PI, PT and SS values were 57.2°, 57.7°, 15.9° and 41.4°, respectively. A comparative analysis showed the means values for PI was greater in the African American than in Caucasian (57.7° vs. 52.6°, p = 0.007), and than in Asian (57.7° vs. 48.7°, p < 0.001). The linear regression model for the LL as a function of PI were "predict LL = 0.41 × PI + 33.7" in African American, "predict LL = 0.58 × PI + 24.3" in Caucasian, and "predict LL = 0.54 × PI + 22.0" in Asian, respectively. CONCLUSION: Significant differences in sagittal spino-pelvic parameters among races were seen. These differences should be considered when planning surgical reconstruction for spinal surgery. These slides can be retrieved under Electronic Supplementary Material.
PURPOSE: Ethnic differences in spino-pelvic parameters among a healthy population are poorly defined in the literature. The purpose of this study was to document sagittal spino-pelvic parameters in a sample of African Americans and to compare them with previously reported data for Caucasians and Asians. METHODS: African American individuals without spine pathology who had standing lateral radiographs were identified. Radiographs were measured to determine the following parameters: lumbar lordosis (LL), pelvic incidence (PI), pelvic tilt (PT) and sacral slope (SS). Data of adult subjects were compared with those previously published for Caucasians (n = 709) and Asians (n = 312). RESULTS: These measurements (LL, PI, PT, and SS) obtained for the 36 African American subjects aged 18 years or older [15 men and 21 women; mean age 26.6 ± 8.7 range (18-53)] The mean LL, PI, PT and SS values were 57.2°, 57.7°, 15.9° and 41.4°, respectively. A comparative analysis showed the means values for PI was greater in the African American than in Caucasian (57.7° vs. 52.6°, p = 0.007), and than in Asian (57.7° vs. 48.7°, p < 0.001). The linear regression model for the LL as a function of PI were "predict LL = 0.41 × PI + 33.7" in African American, "predict LL = 0.58 × PI + 24.3" in Caucasian, and "predict LL = 0.54 × PI + 22.0" in Asian, respectively. CONCLUSION: Significant differences in sagittal spino-pelvic parameters among races were seen. These differences should be considered when planning surgical reconstruction for spinal surgery. These slides can be retrieved under Electronic Supplementary Material.
Authors: Jean-Marc Mac-Thiong; Eric Berthonnaud; John R Dimar; Randal R Betz; Hubert Labelle Journal: Spine (Phila Pa 1976) Date: 2004-08-01 Impact factor: 3.468
Authors: Tomaž Vrtovec; Michiel M A Janssen; Boštjan Likar; René M Castelein; Max A Viergever; Franjo Pernuš Journal: Spine J Date: 2012-04-04 Impact factor: 4.166
Authors: Fouad Zakharia; Analabha Basu; Devin Absher; Themistocles L Assimes; Alan S Go; Mark A Hlatky; Carlos Iribarren; Joshua W Knowles; Jun Li; Balasubramanian Narasimhan; Steven Sidney; Audrey Southwick; Richard M Myers; Thomas Quertermous; Neil Risch; Hua Tang Journal: Genome Biol Date: 2009-12-22 Impact factor: 13.583