Clinical Usefulness of Chest Wall Ultrasonography for Detecting Fractures of Costal Cartilage due to Minor Blunt Chest Trauma

경미한 둔상에 의하여 야기되는 늑연골 골절 진단에 있어서 흉벽 초음파 검사의 임상적 유용성

  • Lee, Woo-Surng (Department of Thoracic and Cardiovascular Surgery, School of Medicine, Konkuk University) ;
  • Kim, Yo-Han (Department of Thoracic and Cardiovascular Surgery, School of Medicine, Konkuk University) ;
  • Chee, Hyun-Keun (Department of Thoracic and Cardiovascular Surgery, School of Medicine, Konkuk University) ;
  • Hwang, Jae-Joon (Department of Thoracic and Cardiovascular Surgery, School of Medicine, Konkuk University) ;
  • Lee, Song-Am (Department of Thoracic and Cardiovascular Surgery, School of Medicine, Konkuk University) ;
  • Jung, Ho-Sung (Department of Emergency Medicine, Chungju Hospital, School of Medicine, Konkuk University) ;
  • Shin, Hyun-Joon (Department of Diagnostic Radiology, Chungju Hospital, School of Medicine, Konkuk University) ;
  • Choi, Young-Chill (Department of Diagnostic Radiology, Chungju Hospital, School of Medicine, Konkuk University)
  • 이우성 (건국대학교 의학전문대학원 흉부외과학교실) ;
  • 김요한 (건국대학교 의학전문대학원 흉부외과학교실) ;
  • 지현근 (건국대학교 의학전문대학원 흉부외과학교실) ;
  • 황재준 (건국대학교 의학전문대학원 흉부외과학교실) ;
  • 이송암 (건국대학교 의학전문대학원 흉부외과학교실) ;
  • 정호성 (건국대학교 의학전문대학원 충주병원 응급의학교실) ;
  • 신현준 (건국대학교 의학전문대학원 충주병원 영상의학교실) ;
  • 최영칠 (건국대학교 의학전문대학원 충주병원 영상의학교실)
  • Published : 2009.08.05

Abstract

Background: Rib fractures are the most common injuries that are caused by blunt chest trauma. However, fractures of the costal cartilage generally go unnoticed on chest X-rays unless they involve a calcified cartilage. For this reason, the sensitivity of conventional radiography for detecting rib fractures is low, and especially those involving the cartilaginous part of the rib. Thus, we have evaluated the usefulness of ultrasonography for detecting fractures of the costal cartilage that were overlooked on the conventional radiographs of patients who suffered minor blunt chest traumas. Material and Method: A total of 45 patients who suffered minor blunt chest trauma and who had no evidence of rib fractures or other major fractures on conventional radiographs were admitted for ultrasonography between April 2008 and March 2009. There were 24 women and 21 men, and the mean age of the patients was 50.4$\pm$15.91 years (range: 17$\sim$76 years). They were examined for the detection of fractures of the costal cartilage by performing ultrasonography with a 7.5-MHz linear transducer. Result: A total of 30 patients (67%) had fractures of the costal cartilage, whereas 15 patients (33%) had no evidence of chondral rib fractures. The mean number of fracture sites of the fractured costal cartilage was 1.6$\pm$0.81 (range: 1$\sim$4 sites) in 30 patients. Periosteal hematoma was the most common finding associated with fractures of the costal cartilage (n=7, 17%), followed by sternum fracture (n=5, 12%). However, periosteal hematoma was noticed in 1 patient (2%) who was without fracture of the costal cartilage, and sternum fracture was noticed in 1 patient (2%) who was without fractures of the costal cartilage. Conclusion: The results of this study suggest that ultrasonography may be a useful imaging modality for detecting fractures of the costal cartilage that are overlooked on the conventional radiographs of patients who suffer minor blunt chest trauma.

배경: 늑골 골절은 흥부 외상 중에 둔상으로 인한 손상 중 가장 흔한 질환이다. 하지만 늑연골 골절은 연골 부위의 석회화가 동반되지 않는 한 고전적인 흉부 방사선 검사에서 잘 관찰되지 않으며, 이러한 이유로 고전적인 흉부 방사선 검사로는 늑연골 골절의 진단에 한계가 있다 이에 저자들은 고전적인 흉부 방사선 검사에서 간과 되었던 늑연골 늑골 골절의 진단을 위하여 경미한 흉부 둔상 환자에게 흉벽 초음파 검사를 시행하였다. 대상 및 방법: 2008년 4월부터 2009년 3월까지 본원을 내원한 환자를 대상으로 하였고, 고전적 방사선 검사에서 이상 소견이 없었으며 중증 손상을 의심할 만한 병변이 없는 총 45명의 환자를 대상으로 하였다. 이들 중 여성은 24명, 남성은 21명이었으며, 평균 연령은 50.4$\pm$15.91세(17$\sim$76)였다. 상기 대상자들은 7.5-MHz 직선 탐촉자를 지닌 초음파 기기를 이용하여 흉벽 초음파 검사를 시행하였다 결과: 대상이 된 45명의 환자들 중 30예(67%)에서 늑연골 골절을 관찰할 수 있었고, 15예(33%)에서는 특별한 이상 소견이 관찰되지 않았다. 골절을 지닌 30명의 평균적인 골절 개수는 1.6$\pm$0.81 부위(1$\sim$4)였다. 늑연골 골절의 가장 흔한 동반 소견은 골막 주위 혈종으로 7예(17%)에서는 골절 소견과 동반되어 관찰되었고 1예(2%)에서는 골절 소견 없이 관찰되었다. 두 번째 흔한 동반 소견은 흉골 골절이었고, 5예(12%)에서는 연골 부위 늑골 골절과 동반되어 관찰되었고, 1예(2%)에서는 흉골 골절만 관찰되었다. 결론: 흉벽 초음파 검사는 경미한 흉부 외상 환자에게서 간과되었던 늑연골 골절의 진단에 유용한 방법으로 사료된다.

Keywords

References

  1. Groskin SA. Selected topics in chest trauma. Semin Ultrasound CT MR 1996;17:119-141 https://doi.org/10.1016/S0887-2171(96)90012-8
  2. Mayberry JC, Trunkey DD. The fractured rib in chest wall trauma. Chest Surg Clin N Am 1997;7:239-261
  3. Barnea Y, Kashtan H, Skornick Y, et al. Isolated rib fractures in elderly patients: mortality and morbidity. Can J Surg 2002;45:43-46
  4. Bansidhar BJ, Lagares-Garcia JA, Miller SL. Clinical rib fractures: are follow-up chest X-rays a waste of resources? Am sugr 2002;68:449-453
  5. Griffith JF, Rainer TH, Ching ASC, Law KL, Cocks RA, Metreweli C. Ultrasonography compared with radiography in revealing acute rib fracture. AJR Am J Roentgenol 1999; 173:1603-1609 https://doi.org/10.2214/ajr.173.6.10584808
  6. Murat K, Erkan D, Haydar HE, Ilknur S, Simay AK. Disclosure of unnoticed rib fractures with the use of ultrasonography in minor blunt chest trauma. Eur J Cardiothorac Surg 2003;24:608-613 https://doi.org/10.1016/S1010-7940(03)00383-X
  7. Battistella F, Benfield JR. Blunt and penetrating injuries of chest wall. General thoracic surgery. 4th ed. 1994;767-783
  8. Mayberry JC, Trunkey DD. The fractured rib in chest wall trauma. Chest Surg Clin N Am 1997;7:239-261
  9. Danher J, Eyes BE, Kumar K. Oblique rib views after blunt chest trauma: an unnecessary routine? Br Med J 1984; 289:1271 https://doi.org/10.1136/bmj.289.6454.1271
  10. Cameron P, Dziukas L, Hadj A, Clark P, Hooper S. Rib fractures in major trauma. Aust NJ J Surg 1996;66:530-534
  11. Malghem J, Vande Berg BC, Lecouvet FE, Maldegue BE. Costal cartilage fractures as revealed on CT and ultrasonography. AJR Am J Roentgenol 2001;176:429-432 https://doi.org/10.2214/ajr.176.2.1760429
  12. Maja EH, Geoff FK, Samuel H. Is ultrasound really helpful in the detection of rib fractures? Injury, Int J Care Injured 2004;35:562-566 https://doi.org/10.1016/S0020-1383(03)00263-8
  13. Martino G, Laforgia R, Rizzo A, et al. Sonographic detection of rib fractures. Radiol Med 1997;94:166-169
  14. Kim YH, Hwang EG, Lee SA, et al. Disclosure of unnoticed rib fractures with the use of ultrasonography in minor blunt chest trauma. J Korean Soc Traumatol 2004; 17:74-80
  15. Choi YC, Hwang EG, Kim YH, et al. Effectiveness of chest wall sonography in detecting rib fractures. Ultrasound in Medicine & Biology, Supplement 1 2006;32:130
  16. Boyd AD. Chest wall trauma. In: Hood RM, Boyd AD, Culliford AT. Thoracic trauma. Philadelphia: W. B. Saunders; 1989;101-132
  17. Koh DM, Burke S, Davies N, Padley SP. Transthoracic US of the chest wall: clinical uses and applications. Radiographics 2002;22:e1 https://doi.org/10.1148/radiographics.22.1.g02jae1e1