中国组织工程研究与临床康复
中國組織工程研究與臨床康複
중국조직공정연구여림상강복
JOURNAL OF CLINICAL REHABILITATIVE TISSUE ENGINEERING RESEARCH
2010年
9期
1581-1585
,共5页
杜学军%廖威明%傅明%何爱珊%杨子波%康焱%邬培慧%张浩%张紫机
杜學軍%廖威明%傅明%何愛珊%楊子波%康焱%鄔培慧%張浩%張紫機
두학군%료위명%부명%하애산%양자파%강염%오배혜%장호%장자궤
骨盆%体位%髋臼假体%前倾角%髋关节假体
骨盆%體位%髖臼假體%前傾角%髖關節假體
골분%체위%관구가체%전경각%관관절가체
背景:利用骨盆正位片测量髋臼假体放置角度是目前常用的评估人工髋关节置换效果的方法,骨盆体位的非标准化影响测量结果的准确性并使得相互比较较为困难.目的:试图了解骨盆体位变化时,髋臼假体前倾角测量的相应变化情况,以提高临床评价的准确性和比较研究的可比性.方法:自制系列前倾角模拟髋臼假体模型,分别代表0°,10°,20°,30°,40°前倾角.按35°,40°,45°,50°,55°外展角分别放置于6具防腐骨盆标本髋臼窝内,使骨盆标本沿冠状轴、矢状轴在±30°的范围内按5°/次分别旋转,保持X射线投照中心点始终与标准骨盆正位片投照中心点一致.摄X射线平片并进行前倾角测量.结果与结论:骨盆沿冠状轴或矢状轴每旋转1°,髋臼假体前倾角测量值变化为0.61°～0.73°,其中沿冠状轴向前旋转和沿矢状轴远离放射源时前倾角呈减小趋势,沿冠状轴向后旋转和沿矢状轴接近放射源时前倾角呈增加趋势,临床评价时应充分考虑骨盆体位因素对测量结果的影响.
揹景:利用骨盆正位片測量髖臼假體放置角度是目前常用的評估人工髖關節置換效果的方法,骨盆體位的非標準化影響測量結果的準確性併使得相互比較較為睏難.目的:試圖瞭解骨盆體位變化時,髖臼假體前傾角測量的相應變化情況,以提高臨床評價的準確性和比較研究的可比性.方法:自製繫列前傾角模擬髖臼假體模型,分彆代錶0°,10°,20°,30°,40°前傾角.按35°,40°,45°,50°,55°外展角分彆放置于6具防腐骨盆標本髖臼窩內,使骨盆標本沿冠狀軸、矢狀軸在±30°的範圍內按5°/次分彆鏇轉,保持X射線投照中心點始終與標準骨盆正位片投照中心點一緻.攝X射線平片併進行前傾角測量.結果與結論:骨盆沿冠狀軸或矢狀軸每鏇轉1°,髖臼假體前傾角測量值變化為0.61°～0.73°,其中沿冠狀軸嚮前鏇轉和沿矢狀軸遠離放射源時前傾角呈減小趨勢,沿冠狀軸嚮後鏇轉和沿矢狀軸接近放射源時前傾角呈增加趨勢,臨床評價時應充分攷慮骨盆體位因素對測量結果的影響.
배경:이용골분정위편측량관구가체방치각도시목전상용적평고인공관관절치환효과적방법,골분체위적비표준화영향측량결과적준학성병사득상호비교교위곤난.목적:시도료해골분체위변화시,관구가체전경각측량적상응변화정황,이제고림상평개적준학성화비교연구적가비성.방법:자제계렬전경각모의관구가체모형,분별대표0°,10°,20°,30°,40°전경각.안35°,40°,45°,50°,55°외전각분별방치우6구방부골분표본관구와내,사골분표본연관상축、시상축재±30°적범위내안5°/차분별선전,보지X사선투조중심점시종여표준골분정위편투조중심점일치.섭X사선평편병진행전경각측량.결과여결론:골분연관상축혹시상축매선전1°,관구가체전경각측량치변화위0.61°～0.73°,기중연관상축향전선전화연시상축원리방사원시전경각정감소추세,연관상축향후선전화연시상축접근방사원시전경각정증가추세,림상평개시응충분고필골분체위인소대측량결과적영향.
BACKGROUND: Acetabular cup orientation using a standard radiograph of the pelvis is quite common method to assess artificial hip replacement nowadays. Non-standardization of pelvic orientation affected accuracy of measurement results, and it is difficult to compare. OBJECTIVE: To make sure how pelvis tilting affect the anteveration of the cup and to elevate clinical accuracy and compare study comparability. METHODS: Designed a simulated acetabular cup with serial concentric circles which pass through the same polars and represent anteveration of 0°, 10°, 20°, 30°, 40°, Loaded the simulated acetabular cup at an inclination of 35°, 40°, 45°, 50°, 55° to6 cadaver pelves, Made the pelves tilt around the frontal axis and sagittal axis with 5° each time in a scope of+30°. Takestandard radiograph of the pelvis accordingly. Radiograph was photographed end frontal angle of dip was measured. RESULTS AND CONCLUSION: Pelvic tilt of about 1° causes measuring errors of anteveration 0. 61 °-0. 73°. The anteveration decreased at both acetabular cups when pelvic posterior tilt and at the acetabular cup that near the X-ray source as pelvic lateral tilt. The anteveration rose at both acetabular cups when pelvic anterior tilt and at the acetabular cup that away from the X-ray source as pelvic lateral tilt. During clinical evaluation, pelvic orientation effects on measurement results should be considered.
