退变膝软组织改变的X线表现及诊断价值

X-Ray Manifestation and Diagnostic Value of Soft Tissue Changes in Degenerative Knee

目的 :评价早期老年退变膝中髌上滑膜囊改变的X线特点及其诊断价值。方法 :以膝关节疼痛就诊、无外伤、 5 0岁以上的 4 4例 5 5个膝关节为观察组 ,4 5岁以下 32例为对照组。在膝关节正侧位平片上进行髌上囊宽度、股四头肌腱后缘模糊范围、胫股关节间隙的测量。结果 :①观察组与对照组的髌上囊平均宽度分别为 0 92 0cm和 0 6 40cm ,观察组髌上囊区密度增高 ,股四头肌腱后缘模糊范围平均 3 796cm ,其中 9例髌韧带后缘模糊。对照组股四头肌腱及髌韧带后缘清晰。②观察组与对照组胫股关节间隙平均宽度分别为内侧 0 5 10cm和 0 6 0 7cm ,外侧 0 5 90cm和 0 6 5 1cm ,内 /外之比为 0 818和 0 92 9。各组数据经统计学处理 ,其结果有极显著差异 (P <0 0 1)。结论 :膝关节X线片上股四头肌腱后缘模糊及髌上囊区密度增高、髌上囊宽度增加 (>0 5cm )及胫股关节内侧间隙稍窄 ,是早期退变膝较可靠的X线征象。

Objective:To evaluate the x-ray characteristics and diagnostic value of the soft tissue changes in degenerative knee.Methods:X-ray of the knees were examined and measured in elderly patients with knee ache(N=44) compared with normal adults control group(N=32).Results:This study showed the result of degenerative knee patients vs normal adults as follows (mean):TFJS(inner)0.501 cm vs 0.607 cm TFJS(external)0.591 cm vs 0.651 cm.The width of the upper patellar synovial sac:0.920 cm vs 0.640 cm.A hazy scope behind tendo-femoral fourceps muscle were 3.796 cm vs 0. There were statistically significance in all of the parameters between two groups (P<0.01).Conclusion:Increase in the width and the density of the upper patellar synovial sac and haze behind tendo-femoral fourceps muscle may be the specific features in early degenerative knee.