Health Resources


椎間盤突出 Protruded Intervertebral Disc  --  翁偉彬先生

椎間盤是位於脊椎之間的啫喱狀軟骨。它的主要功能是協助身體搖擺及避震。常見導致軟骨移位的原因有: 突然的彎腰抽重東西，運動創傷或長時間的不良工作姿勢。它的徵狀與坐骨神經痛相似，但病發會比較突然和急性。

患軟骨脫出的坐骨神經痛病人一般以早上起床時的徵狀較為嚴重。病者一般不能久坐、不能久站也不能大覆度地活動，躺下時後大腿拉著疼痛。
由於脫出的椎間盤會導致炎症，令被壓迫的神經根加劇內壓力而產生痛楚。突出的軟骨可壓著神經根的內側，外側或正中。
如壓向神經根的外側時，病人身軀會傾向沒有腳痛的一方(圖A)；如壓內側神經根時，病人身軀會傾向腳痛的一方(圖B)；如正中壓著神經根時，病人身軀會傾向前方。
Protrusion of Lumbar Intervertebral Disc (PID) is a common cause of low back pain and Sciatica. Disc protrusion is often precipitated by injury, for example, back sprain injury due to sudden lifting of heavy object while trunk is bent or twisted. Sports injury and poor posture are other common causes for disc protrusion.

The symptoms of protruded lumbar intervertebral disc include: Radiating pain from buttock to the back of the thigh and then to the calf, tingling or numbness in the calf or foot, and increase of back / thigh pain upon coughing or sneezing.