Radiological Projection for Diagnosis of Shoulder Subluxation in Patients with Post-Stroke Hemiplegia

편마비 환자에서의 견관절 아탈구 진단에 유용한 촬영법

  • Cho, Kwang-Ho (Catholic University of Daegu, Department of Radiological science) ;
  • Kang, Yeong-Han (Department of Radiology, Daegu Catholic University Hospital)
  • 조광호 (대구가톨릭대학교 방사선학과) ;
  • 강영한 (대구가톨릭대학병원 영상의학과)
  • Published : 2009.09.30

Abstract

Purpose : The purpose of this study was to find out useful radiological projection of shoulder subluxation in patients with post-stroke hemiplegia. Methods : A total of 33 patients with post-stroke hemiplegia were included(20 men and 13 women, mean age 62.3 years) and having the subluxed shoulder over one finger breath. The shoulder subluxation was determined as the ratio of the radiographic vertical and horizontal distance. The vertical distance was determined by measuring the distance between the most inferolateral point of the acromion and the central point of the humeral head. The horizontal distance was determined by measuring the distance between the central point of the glenoid fossa and the central point of the humeral head. To measure of the shoulder subluxation, the shoulder AP, axial and transthoracic lateral projections were taken on both affected and unaffected shoulders. We analyzed the difference of subluxation distance by t-test. Results : When patients was in sitting position, the average time of being shoulder subluxation was 123 second. There was significant difference between supine($49.90{\pm}13.6\;mm$) and sitting position($60.72{\pm}16.3\;mm$) in the vertical distance of shoulder anterior-posterior projection. Also, there was significant difference on transthoracic lateral projections, Affected $35.92{\pm}6.2\;mm$, Unaffected $28.76{\pm}5.4\;mm$. But in case of shoulder axial projection(supine position), there was no significant difference (Unaffected and affected was $23.01{\pm}9.0\;mm$, $22.45{\pm}8.2\;mm$ each). Conclusion : Radiological projection of shoulder subluxation has diagnostic value when it goes after check out the process of subluxation through finger breadth test. For this, patients must be in sitting and shoulder neutral position about 2 minutes. In addition, Shoulder anterior-posterior and transthoracic projection were significant to diagnose subluxation. But in axial projection, there wasn't meaningful differences.

연구목적 : 편마비 환자에 있어 견부 아탈구 진단에 유용한 촬영법을 알아보고, 편마비 상태를 고려한 촬영방법을 알아보고자 하였다. 연구방법 : 뇌졸중으로 인한 편마비 환자 중 마비측 견관절 부위의 견봉 끝과 상완골두 사이가 1 수지폭 이상인 33명의 환자를 대상으로 견관절 전후방향촬영은 누운 자세와 앉은 자세의 영상을 비교하였고, 흉곽을 통한 상완골 측방향 촬영은 앉은 자세에서 건측과 환측의 영상을 비교하였다. 축방향 촬영은 누운 자세에서 건측과 환측을 비교하였고, 상완골두의 중심, 관절와의 중심, 견봉의 최하외측단의 3가지 기준점으로 거리를 측정하여 평균비교 분석(t-test)을 시행하였다. 연구결과 : 대상자를 누운 자세에서 앉히고 견관절 자연지위를 취한 후 견관절 아탈구가 되기까지의 시간은 평균 123초였다. 견관절 전후 방향 촬영에서 상완골두의 중앙점과 견봉의 최하외점과의 거리가 누운 자세에서는 평균 $49.90{\pm}13.6\;mm$이었고, 앉은 자세에서는 $60.72{\pm}16.3\;mm$이로 유의한 차이가 있었다. 흉곽을 통한 측방향 촬영에서는 환측 $35.92{\pm}6.2\;mm$, 건측 $28.76{\pm}5.4\;mm$으로 유의한 차이가 있었다. 누운 자세의 견관절 축방향 촬영에서는 건측과 환측 각각 $23.01{\pm}9.0\;mm$, $22.45{\pm}8.2\;mm$로 유의한 차이가 없었다. 결론 : 견관절 아탈구 진단을 위한 견관절 촬영은 촬영 전 수지폭 검사를 통해 아탈구가 진행됨을 확인한 후 촬영을 하여야 진단적 가치가 있다. 이를 위해 앉은 자세에서 견관절 자연지위로 120초 지난 후 촬영을 하여야 한다. 또한 견관절 전후방향 영상과 흉곽을 통한 측방향 촬영은 아탈구를 평가하는데 유효하였고, 견관절 축방향에서는 아탈구의 차이가 없으므로 진단적 가치가 떨어진다고 볼 수 있다.

Keywords

References

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