Occupationally related ultrasonic findings in carpet and floor layers' knees.
研究用超声检查了96名地毯和地板铺设工人与72名油漆工的膝盖，发现前者髌前或浅髌下囊增厚比例达49%，且积液与跪姿膝痛相关。
Soft-tissue changes in the anterior aspect of the knees were evaluated with ultrasonography among 96 randomly selected carpet and floor layers and 72 painters. The ultrasonography showed thickening of the prepatellar or superficial infrapatellar bursa in 49% of the carpet and floor layers and 7% of the house painters. Fluid collection in the prepatellar or superficial infrapatellar bursa was noted for 10 carpet and floor layers, and this ultrasonographic finding was associated with knee pain in kneeling postures.