Microanatomy Of The Sinus, Bones And Deep Musles At The Posterior Occipitocervical Region And It's Application In Suboccipital Retrosibmoidal Craniotomy

For improving the surgical efficacy for the lesions of the posterior fossa, the microanatomy of deep muscles at the regions of posterior occiput-cervix and the bone flap of posterior fossa, and applied anatomy of suboccipital retrosibmoidal craniotomy were conducted on 5 formalin fixed cadaveric heads in which vessels were perfused with colorful silicone and 5 dry adult cadaveric head specimens. Suboccipital retrosibmoidal craniotomy with replacement of bone flap and deep muscle incision,suture in turn were used in patients to improve the operative effect of posterior fossa tumor.Part â…  Microanatomy of the sinus, bones and deep musles at the posterior occipitocervical regionObjective: To provide the microsurgical anatomical basis for the operation of cerebellar region tumors and tumors related to cerebellopontine angle. Materials and Methods: â‘  The deep muscles in the region of posterior occiput-cervix were observed in 10 sides of formalin fixed cadaveric heads; â‘¡The mastoid process and occipital and the regions below inferior nuchal line were Explored and measured. â‘¢According to the data we design a safty craniotomy with replacement of bone flap. Results:There are four layers muscles at the posterior fossa occipitocervical region,A trapezius muscle,B splenius muscle of head,C semi-spinal muscle of head and long muscle of head D greater and small posterior rectus muscles of head.The muscles crossed and covered each other. It makes the head move smoothly. and the deep muscles also protect the posterior fossa.the occipital artery is a branchs of external carotid artery on the face of semi-spinal muscle of heal,Occasionally it also on the face of long muscle of head.it can...