Technical Improvement for Spine Radiography by Comparing Scoliotic and Lordotic Angle with Different Positioning Methods

촬영자세별 척추측만각과 척추전만각의 비교 분석에 따른 개선 방안

  • Jung, Jae-Yeon (Department of Radiology, Asan Medical Center) ;
  • Son, Soon-Yong (Department of Radiology, Asan Medical Center) ;
  • Lee, Jong-Seok (Department of Radiotechnology, Wonkwang Health Science University) ;
  • Yoo, Beong-Gyu (Department of Radiotechnology, Wonkwang Health Science University)
  • 정재연 (서울아산병원 영상의학과) ;
  • 손순룡 (서울아산병원 영상의학과) ;
  • 이종석 (원광보건대학교 방사선과) ;
  • 유병규 (원광보건대학교 방사선과)
  • Received : 2011.10.31
  • Accepted : 2011.12.02
  • Published : 2011.12.30

Abstract

Since the spine radiography were explained differently at every several hospitals and textbooks. the technique has not been accurately defined and interfered each other. We would like to define the most appropriate positioning for clinical cases, and reference books, by comparing scoliotic angle and lordotic angle. From Mar 2009 to Sep 2011, 85 patient cases were studied, who had not been undergone surgical treatment among spondylopathy patients. Scoliotic angle and lordotic angle were measured, using Cobb's method. We analyzed statistically using t-test(SPSS 18), and evaluated spine general radiography position. Moreover, we researched on the actual condition at 10 university hospitals in Seoul. The results of scoliotic angle measurement, the value at erect position showed 20.98% higher than supine position, and it has statistical significance (p<.01). In lordotic angle measurement, the value at neutral holding position represented 29.3% higher than supine position, and it also has statistical significance(p<.01). The results of clinical survey, supine posine(70.0%) took much higher possession than erect position(30.0%). In conclusion, compare to supine position, erect position shows increased scoliotic and lordotic angle. It was agreed with the importance of clinical erect position radiography, which gravity affects. So clinical radiologist must recognize the difference, and conduct an accurate study.

척추촬영법은 의료기관별로 상이하고 각종 대학 및 국가시험을 위한 교재 등에 상이하게 기술되어 혼선을 빚고 있는 실정이다. 이에 동일한 환자의 선자세와 누운자세에서 촬영한 영상을 바탕으로 각 자세에서 척추측만각과 척추전만각의 차이를 비교함으로써 임상 및 관련기관, 참고서적에 가장 적절한 촬영 자세를 정립하여 제시하고자 하였다. 2009년 3월부터 2011년 9월까지 척추질환 환자 중 수술적 치료를 받지 않은 85명을 대상으로 Cobb's method를 이용하여 척추전만각(lordortic angle) 및 척추측만각(scoliotic angle)을 측정하였다. 각각의 측정자료는 t-test(SPSS 18)를 이용하여 유의성을 분석하였으며, 임상의 실태 파악을 위해 서울소재 10곳의 대학병원을 대상으로 척추촬영의 자세와 시행근거를 설문으로 조사하였다. 척추측만각의 측정 결과, 선자세가 바로누운자세보다 평균 20.98% 증가하였으며, 통계적으로 매우 유의한 차이를 보였다(p<.01). 척추전만각은 지지대잡은자세가 측와위자세보다 29.3% 증가하였으며, 통계적으로 매우 유의하였다(p<.01). 의료기관의 실태 결과, 누운자세촬영이 70.0%로 선자세촬영의 30.0%보다 월등하게 나타났다. 결론적으로 선자세촬영은 누운자세촬영보다 척추측만각 및 척추전만각이 증가하여 임상적 진단과 치료에서 중력이 가해진 선자세 촬영의 중요성과 일치하였으므로 임상의 검사자는 그 차이를 인식하여 필히 정확한 선자세에서 촬영이 요구된다.

Keywords

References

  1. Weon Wook Park, Jung Sub Lee, Ja Gyung Ku, Young Jun Choi, The Change of Cobb Angle According To Position in Adolescent Idiopathic Scoliosis, Journal of Korean Spine Surg, Vol.10, No.3, pp.255-260, 2003 https://doi.org/10.4184/jkss.2003.10.3.255
  2. Chang-Hoon Jeon, Yong-Chan Kim, Nam-Su Chung, Nam-Hyun Kim, Jin-Yeol Yi, The Changes of Sagittal Alignment after Anterior Interbody Fusion with Posterior Fixation in Spondylolisthesis of the Lumbar Spine, Journal of Korean Spine Surg, Vol.11, No.3, pp.131-140, 2004 https://doi.org/10.4184/jkss.2004.11.3.131
  3. Morrissy RT, Goldsmith GS, Hall EC, Kehl D, CowieG H, Measurment of the Cobb angle on radiographs of patients who have scoliosis, J Bone Joint Surg, 72-A, pp.320-327, 1990
  4. Duval BG, Threshold values for supine and standing Cobb angles and rib hump measurements : prognostic factors for scoliosis, Eur Spine J, Vol.5, pp.79-84, 1996 https://doi.org/10.1007/BF00298385
  5. Min-Seok Kim, Seok-Won Chung, Changju Hwang, Choon-Ki Lee, Bong-Soon Chang, A Radiographic Analysis of Sagittal Spinal Alignment for the Standardization of Standing Lateral Position, J Korean Orthop Assoc, 40, pp.861-7, 2005 https://doi.org/10.4055/jkoa.2005.40.7.861
  6. Jackson RP, Hales C, Congruent spinopelvic alignment on standing lateral radiographs of adult volunteers, Spine(Phila Pa 1976), 25(21), pp.2808-15, 2000 https://doi.org/10.1097/00007632-200011010-00014
  7. Marks MC, Stanford CF, Mahar AT, Newton PO, Standing lateral radiographic positioning does not represent customary standing balance, Spine(Phila Pa 1976), 28(11), pp.1176-82. 2003
  8. Vedantam R, Lenke LG, Bridwell KH, Linville DL, Blanke K, The effect of variation in arm position on sagittal spinal alignment, Spine (Phila Pa 1976). 25(17), pp.2204-9, 2000 https://doi.org/10.1097/00007632-200009010-00011
  9. Torell G, Nachemson A, Haderspeck GK, Schultz A, Standing and supine Cobb measures in girls with idiopathic scoliosis, Spine, 10, pp.425-427, 1985 https://doi.org/10.1097/00007632-198506000-00004
  10. Zetterberg C, Hansson T, Lindstrom J, Irstam L, Andersson GB, Postural and time-dependent effects on body height and scoliosis angle in adolescent idiopathic scoliosis, Acta Orthop Scand, 54, pp.836-840, 1983 https://doi.org/10.3109/17453678308992918
  11. Yazici M, Acaroglu ER, Alanay A, Deviren V, Cila A, Surat A, Measurement of vertebral rotation in standing versus supine position in adolescent idiopathic scoliosis, J Ped Orthop, 21, pp.252-256, 2001
  12. Bernhardt M, Bridwell KH, Segmental analysis of the sagittal plane alignment of the normal thoracic and lumbar spines and thoracolumbar junction, Spine(Phila Pa 1976), 14(7), pp.717-21, 1989 https://doi.org/10.1097/00007632-198907000-00012
  13. Chong Suh Lee, Won Hwan Oh, Sung Soo Chung, Saeng Guk Lee, Jong Yoon Lee, Analysis of the Sagittal Alignment of Normal Spines, J Korean Orthop Assoc, 34(5), pp.949-954, 1999
  14. Suzuki H, Endo K, Mizuochi J, Kobayashi H, Tanaka H, Yamamoto K, Clasped position for measurement of sagittal spinal alignment, Eur Spine J, 19(5), 782-6, 2010 https://doi.org/10.1007/s00586-010-1352-7
  15. Aota Y, Saito T, Uesugi M, Kato S, Kuniya H, Koh R, Optimal arm position for evaluation of spinal sagittal balance, J Spinal Disord Tech, 24(2), pp.105-9, 2011 https://doi.org/10.1097/BSD.0b013e3181da36c4