【摘要】：目的:探究膝關(guān)節(jié)J形征在復(fù)發(fā)性髕骨脫位患者中的發(fā)病率、分度及放射學(xué)特征。方法:對(duì)59例連續(xù)的復(fù)發(fā)性髕骨脫位患者進(jìn)行回顧性分析,根據(jù)患者在清醒狀態(tài)下膝關(guān)節(jié)近伸直位時(shí)的髕骨外側(cè)位移程度,將J形征分為陰性(-)、一度陽性(輕度,1+)、二度陽性(明顯,2+)三組。采用膝關(guān)節(jié)0°位CT量化髕骨外移和外傾程度,參數(shù)包括:髕骨平分指數(shù)、髕骨滑車距離、髕骨外傾角。結(jié)果:入選的59例患者中:72.9%(43/59)存在J形征陽性,其中27.1%(16/59)一度陽性(1+),45.8%(27/59)二度陽性(2+)。3個(gè)CT參數(shù)均隨J形征分度的增加而增大(P0.05)。結(jié)論:在59例連續(xù)的復(fù)發(fā)性髕骨脫位病例中,J形征陽性率為72.9%,J形征的嚴(yán)重程度與髕骨外移和外傾程度呈正相關(guān)性。
[Abstract]:Objective: to investigate the incidence, grading and radiologic features of J shape sign of knee joint in patients with recurrent patellar dislocation. Methods: 59 consecutive patients with recurrent patellar dislocation were retrospectively analyzed. According to the degree of lateral displacement of patella in the proximal extension of knee joint in awake state, J sign was classified as negative (-) and once positive (mild, 1). Two degree positive (obvious, 2) three groups. The degree of patellar outward displacement and extroversion was measured by CT at 0 擄position of knee joint. The parameters included patellar equalization index, patellar trochlear distance and patellar external inclination angle. Results: among the 59 patients enrolled, 72.9% (43 / 59) had J positive, of which 27.1% (16 / 59) were once positive (1). 45.8% (27 / 59) second-degree positive (2). The three CT parameters increased with the increase of J-index (P0.05). Conclusion: in 59 consecutive cases of recurrent patellar dislocation, the positive rate of J sign is 72.9%. The severity of J sign is positively correlated with the degree of patella outward migration and extroversion.
【作者單位】： 北京積水潭醫(yī)院運(yùn)動(dòng)損傷科;
【基金】：北京市醫(yī)院管理局臨床醫(yī)學(xué)發(fā)展專項(xiàng)——“揚(yáng)帆”計(jì)劃;北京市醫(yī)院管理局臨床技術(shù)創(chuàng)新項(xiàng)目(編號(hào):XMLX201613)
【分類號(hào)】：R87
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本文編號(hào)：2385604