中华创伤骨科杂志
中華創傷骨科雜誌
중화창상골과잡지
CHINESE JOURNAL OF ORTHOPAEDIC TRAUMA
2008年
9期
817-821
,共5页
放射摄影术%X线片%下肢%关节成形术
放射攝影術%X線片%下肢%關節成形術
방사섭영술%X선편%하지%관절성형술
Radiography%X-ray film%Lower extremity%Arthroplaaty
目的 介绍躯体X线测量板的制作方法 ,探讨其有效性、重复性,为临床X线测量提供一套精确、实用、经济的方法 和工具.方法 设计和制作躯体X线测量板.使用下肢模拟板9块作为金标准,比较躯体X线测量板测量值与金标准值之间的差别.评价测量板的有效性、准确性.选择膝骨性关节炎患者21侧下肢,采用躯体X线测量板测量下肢的长度和角度,比较同一观察者在不同时间对同一患者肢体测量结果 ,评价观察者内重复性;比较不同观察者采用测量板所测结果 ,评价观察者间重复性.结果 测量板上的标志物可清晰地投照在X线片上.模拟板测量的角度与金标准相比差异很小,平均绝对差为0.10°～0.21°,错误比为0.12%～3.15%,r均接近1.与金标准相比长度的差异也很小,平均绝对差为O.05～O.16 cm,错误比为0.12%～O.28%,r均接近1.同一观察者在不同时间采用测量板所测的长度和角度值有很好的相关性,,接近1(P<0.01).平均绝对差分别为0.1～0.37 cm和0.55°,错误比0.31%～0.97%.不同观察者采用测量板所测的长度和角度值有很好的相关性,r接近1(P<0.01),平均绝对差分别为0.05～0.13 cm和0.39°,错误比0.16%～0.35%.结论 躯体X线测量板可测量肢体的长度和角度,其测量结果 与实际值有很好的一致性,测量精确、可靠,实用、经济,容易操作,重复性好,是进行X线测量的理想方法 和工具.
目的 介紹軀體X線測量闆的製作方法 ,探討其有效性、重複性,為臨床X線測量提供一套精確、實用、經濟的方法 和工具.方法 設計和製作軀體X線測量闆.使用下肢模擬闆9塊作為金標準,比較軀體X線測量闆測量值與金標準值之間的差彆.評價測量闆的有效性、準確性.選擇膝骨性關節炎患者21側下肢,採用軀體X線測量闆測量下肢的長度和角度,比較同一觀察者在不同時間對同一患者肢體測量結果 ,評價觀察者內重複性;比較不同觀察者採用測量闆所測結果 ,評價觀察者間重複性.結果 測量闆上的標誌物可清晰地投照在X線片上.模擬闆測量的角度與金標準相比差異很小,平均絕對差為0.10°～0.21°,錯誤比為0.12%～3.15%,r均接近1.與金標準相比長度的差異也很小,平均絕對差為O.05～O.16 cm,錯誤比為0.12%～O.28%,r均接近1.同一觀察者在不同時間採用測量闆所測的長度和角度值有很好的相關性,,接近1(P<0.01).平均絕對差分彆為0.1～0.37 cm和0.55°,錯誤比0.31%～0.97%.不同觀察者採用測量闆所測的長度和角度值有很好的相關性,r接近1(P<0.01),平均絕對差分彆為0.05～0.13 cm和0.39°,錯誤比0.16%～0.35%.結論 軀體X線測量闆可測量肢體的長度和角度,其測量結果 與實際值有很好的一緻性,測量精確、可靠,實用、經濟,容易操作,重複性好,是進行X線測量的理想方法 和工具.
목적 개소구체X선측량판적제작방법 ,탐토기유효성、중복성,위림상X선측량제공일투정학、실용、경제적방법 화공구.방법 설계화제작구체X선측량판.사용하지모의판9괴작위금표준,비교구체X선측량판측량치여금표준치지간적차별.평개측량판적유효성、준학성.선택슬골성관절염환자21측하지,채용구체X선측량판측량하지적장도화각도,비교동일관찰자재불동시간대동일환자지체측량결과 ,평개관찰자내중복성;비교불동관찰자채용측량판소측결과 ,평개관찰자간중복성.결과 측량판상적표지물가청석지투조재X선편상.모의판측량적각도여금표준상비차이흔소,평균절대차위0.10°～0.21°,착오비위0.12%～3.15%,r균접근1.여금표준상비장도적차이야흔소,평균절대차위O.05～O.16 cm,착오비위0.12%～O.28%,r균접근1.동일관찰자재불동시간채용측량판소측적장도화각도치유흔호적상관성,,접근1(P<0.01).평균절대차분별위0.1～0.37 cm화0.55°,착오비0.31%～0.97%.불동관찰자채용측량판소측적장도화각도치유흔호적상관성,r접근1(P<0.01),평균절대차분별위0.05～0.13 cm화0.39°,착오비0.16%～0.35%.결론 구체X선측량판가측량지체적장도화각도,기측량결과 여실제치유흔호적일치성,측량정학、가고,실용、경제,용역조작,중복성호,시진행X선측량적이상방법 화공구.
Objective To study the efficacy and repeatability of the Limb X Film Measuring Plate (LXMP)in clinical x film measurement of lengths and angles of limbs.Methods The LXMP was de- signed and manufactured for testing.Three known points in 9 templates were taken as golden standards.which were to be compared with measuring results of these projected points on the X film for testing efficacy of LXMP.Twenty-one patients with knees osteoarthritis were selected.The lengths and angles of their lower limbs were measured twice with the help of LXMP by an observer at different time intervals for testing in. Tra-observer repeatability.Two observers measured once on films at the same time for testing inter-observer repeatability.The correlation coefficients,mean absolute difierences between the repeated measurements,and error rate were calculated. Results The points on LXMP could be seen clearly on X film.Validation tests showed the differences in angle measurement between golden standards and measuring results for those pro- jeted points on the X film were insignificant.with mean absolute difference being O.10.-0.21,error rate being 0.12%-3.15%and r being close to 1.The differences in length measurement were insignificant ei- ther,with mean absolute differenee being 0.05 cm-0.16 cm.error rate being 0.12%-o.28%and r being close to 1.The intra-observer repeatability test for beth angles and lengths showed that r was close to I.mean absolute diffefences 0.55.and 0.1-0.37cm and error rate 0.3l%-O.97%.while the inter-observer re- peatability test showed that r was close to 1.mean absolute difierences o.39.and0.05-0.13cm and error rate O.16%-O.35%. Conclusion The Limb X Film Measuring Plate Can be used for accurately mcasuring limb lengths and angles with good efficacy and repeatability.
