1病案资料患者女,50岁。因“左膝疼痛1个月,加重伴活动受限2个月”入院。既往无特殊病史,入院体格检查:生命体征平稳,左膝肿胀,髌上囊肿胀明显,浮髌试验(+),左膝关节外侧、左股骨外髁部压痛(+),左膝关节皮温增高,未闻及血管杂音,未见静脉怒张,膝关节旋内、旋外受限,屈膝90°(+),伸膝160°(+),左膝、踝反射减退,病理反射未引出。外院检查结果:左膝X线片示左膝关节骨质增生(见图1)。生化全 1 case information Patient female, 50 years old. Because of “left knee pain for 1 month, aggravated with activity limited 2 months ” admission. No previous history of a particular medical history, physical examination admission: stable vital signs, swelling of the left knee, swelling of the suprapatellar plexus, floating patella test (+), lateral left knee joint, left lateral femoral condyle tenderness (+ (+), Knee flexion 160 ° (+), left knee, ankle reflex, pathological reflex did not lead . Outside the hospital examination results: left knee X-ray showed left knee joint hyperplasia (see Figure 1). Biochemical whole