Objective       To evaluate the clinical effect and safety of piezoelectric osteotomy in intraspinal tumor resection.        Methods       Clinical data of 31 patients with intraspinal tumors

who underwent the piezoelectric osteotomy assisted surgery (piezoelectric osteotomy group

n=15) or non-piezoelectric osteotomy assisted surgery (non-piezoelectric osteotomy group

n=16)

were retrospectively reviewed. The operation situations and long-term clinical effect were compared.        Results       Compared with the non-piezoelectric osteotomy group

the piezoelectric osteotomy group showed shorter operative time and hospital stay

and less blood loss (P0.05). However

the long-term clinical effect had no statistically significant difference between the 2 groups (P0.05). The piezoelectric osteotomy had good bone tissue cutting effect

high precision

good soft tissue protective effect

less bleeding

and clear operative field. After operation

most symptoms were obviously alleviated

and no dura

spinal cord and spinal nerve root injury and other complications appeared. In follow-up of 3~12 months

the spinous process and vertebral plate complex was healed well

and no collapse

shift

deformity and spinal canal stenosis occurred.        Conclusion       Piezoelectric osteotomy can smoothly and effectively remove the spinous process and vertebral plate complex

cut bone tissue

and provide good protective effect on the nerve

blood vessels and other soft tissues.