Changes in Sagittal Spinopelvic Parameters according to Pelvic Incidence in Asymptomatic Old Korean Men (고령의 무증상의 한국인들에서 골반 입사각에 따른 시상면상 척추-골반 지표들의 변화)

강규복; Youngbae B. Kim (김영배); Young Joon Ahn (안영준); Yongjung J Kim (김용정); 박성철

Changes in Sagittal Spinopelvic Parameters according to Pelvic Incidence in Asymptomatic Old Korean Men

Journal of Korean Society of Spine Surgery
Abbr : J Kor Spine Sur
2011, 18(4), pp.223-229
Publisher : Korean Society Of Spine Surgery
Research Area : Medicine and Pharmacy > Orthopedic Surgery

강규복 ¹, Youngbae B. Kim ¹, Young Joon Ahn ², Yongjung J Kim ³, 박성철 ¹

¹서울보훈병원
²국립경찰병원
³Columbia University Medical Center

Accredited

ABSTRACT

Study Design: A radiographic study of normal subjects. Objectives: To analyze sagittal spinal parameters according to the size of pelvic incidence (PI). Summary of Literature Review: There has been no previous study about the classification of spinopelvic parameters that has used a large cohort of asymptomatic older men with the same ethnic background as those in the current study. Materials and Methods: We examined 160 males aged over 50 without disease, trauma, or history of operation on spine or lower extremities. Sagittal standing radiographs of the whole spine on 36-inch film were taken. Group 1 (n=30) had a PI of less than 40°. Group 2 (n=71) had PI between 40° and 50°, and group 3 (n=59) had a PI greater than 50°. Thoracic kyphosis, thoracolumbar kyphosis, lumbar lordosis, the vertebral slope of T12, sacral slope, and pelvic incidence were measured. The distances from the plumb line of C7, T12, and the lumbar apex to the posterosuperior corner of the sacrum were also measured. Results: Subjects’ average age was 64.1(53~83).Lumbar lordosis, sacral slope and pelvic tilt were all significantly increased in group 3. Thoracic kyphosis and the vertebral slope of T12 were not different between groups. The distances from the plumb line of C7, T12, and the lumbar apex to the posterosuperior corner of the sacrum were significantly translated anteriorly in group 3. Conclusions: Group 3, who had the largest PI, demonstrated the largest lumbar lordosis and the most forward transition of trunk. However there were no differences in thoracic kyphosis and the vertebral slope of T12 among the three groups.

KEYWORDS

Old age, Sagittal, Pelvis, Lumbar, Classification

Citation status

* References for papers published after 2023 are currently being built.

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