Characteristic of Cross-sectional Area of Lumbar Paraspinal Muscle in Patients of Acute and Chronic LBP

20대와 40대의 급성 및 만성요통환자의 척추주위 근육에 관한 횡단면의 비교

  • 김대훈 (굿스파인병원 척추관절건강연구소) ;
  • 박진규 (굿스파인병원 신경외과) ;
  • 박윤진 (카톨릭대학교 서울성모병원 물리치료실) ;
  • 정대인 (광주보건대학 물리치료학) ;
  • 김성수 (광주보건대학 물리치료학)
  • Received : 2011.03.17
  • Accepted : 2011.04.11
  • Published : 2011.06.28


The purpose of this study was to compare acute and chronic LBP patient in twenties and forties, respectively by size measure paraspinal muscle (cross-sectional area; CSA). CSA of paraspinal muscle (psoas, multifidus, erector muscle) size was measured by free-handling technique of the picture archiving and communication system(PACS) using MRI at the level(lower end-plate of L4) in twenties(9 males, 10 females) and forties(9 males, 8 females) in acute and chronic LBP patient. The results of this study showed no significantly difference between acute and chronic LBP (p>0.05) in twenties patients. However, there was significant difference between acute and chronic LBP (p<0.05) in forties patients. Also, there was significant difference in paraspinal muscle CSA between chronic LBP patients in twenties and chronic LBP patients in forties (p<0.05). This study showed that paraspinal muscle atrophy was observed in forties with various cause, but Not chronic LBP patients in twenties. Accordingly it is required for chronic LBP patients in forties to minimize trunk muscle atrophy through immediate back muscle dynamic exercise and early functional activity.


Muscular Atrophy;Muscle Cross-sectional Area;Paraspinal Muscle;Low Back Pain


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