[Establishment of finite element model of anterior cervical transpedicular system for reconstruction of cervical stability after subtotal resection of two segments of lower cervical spine].

Objective: To establish the fixation model of anterior cervical transpedicular system (ACTPS) after subtotal resection of two segments of lower cervical spine(C-C) in order to provide a finite element modeling method for anterior cervical reconstruction.

Methods: The CT data of the cervical segment (C-T) of a 30-year-old adult healthy male volunteer was collected. Used Mimics 10.

[Imaging study of soft tissue swelling after anterior cervical corpectomy].

Objective: To study the changes of anterior soft tissue swelling after anterior cervical subtotal corpectomy, titanium mesh fusion and internal fixation.

Methods: From November 2015 to July 2018, 151 patients with cervical spondylotic myelopathy were treated with anterior single corpectomy, titanium mesh fusion and internal fixation, including 109 males and 42 females, aged 44 to 81 (59.77±8.

[Application of posterior arch of the atlasrch resection for high-level cervical dumbbell schwannoma surgery].

Objective: To investigate the feasibility and clinical effect of hemi-resection of posterior arch of atlas in the upper cervical spinal dumbbell-shaped schwannomas.

Methods: A retrospective analysis was performed on 13 patients with high level cervical dumbbell schwannomas from January 2005 to December 2018, including 10 males and 3 females, aged 19 to 67 years old. The occipital foramen to the C were 4 cases and 9 cases of C.

[Diagnosis and surgical treatment of symptomatic lumbar spinal epidural liposis].

Objective: To explore diagnosis and surgical treatment of symptomatic lumbar spinal epidural lipoplasia.

Methods: A retrospective analysis of 19 patients with symptomatic lumbar spinal epidural hyperplasia treated with hemilaminectomy and interbody fusion and internal fixation from February 2012 to November 2018 were performed, including 7 males and 12 females, aged from 48 to 72 years old with an average of (57.6±1.

[Diagnosis, treatment and etiology analysis of nerve compression by bone fragment after lumbar spine surgery].

Objective: To explore the diagnosis, treatment, cause and prevention of nerve compression by bone fragment after lumbar spine surgery.

Methods: The clinical data of 23 patients with nerve compression by bone fragment after lumbar spine surgery from February 2012 to March 2019 were collected retrospectively, including 9 males and 14 females, aged 42 to 81 years with an average of (62.60±5.

[Treatment of migrated lumbar disc herniation with percutaneous endoscopic lumbar discectomy and target foraminoplasty].

Objective: To evaluate the clinical outcome of percutaneous endoscopic lumbar discectomy with target foraminoplasty in treating migrated lumbar disc herniation.

Methods: From June 2015 to January 2016, 25 patients with migrated lumbar disc herniation were treated with percutaneous endoscopic lumbar discectomy with target foraminoplasty. A total of 14 males and 11 females, aging from 23 to 52 years old (average: 37.

[Radiological study on the n-HA/PA66 cage used in the transforaminal lumbar interbody fusion].

Objective: To explore the effects of nano-hydroxyapatite/polyamide 66 (n-HA/PA66) cage on recovering and maintaining lumbar curvature, lumbar heights and fusion rate when used in the transforaminal lumbar interbody fusion.

Methods: From February to July 2012, 50 patients with degenerative lumbar disease(lumbar disc herniation in 32 cases and lumbar spondylolisthesis in 18 cases) were treated with transforaminal lumbar interbody fusion using the n-HA/PA66 cage, and their preoperative and postoperative clinical outcomes were analyzed. The patients were followed up for 2, 4, 6 and 8 months after operation, during which the CR and CT film of lumbar vertebra were checked to get relative height of vertebral space, Taillard index,index of lumbar spinal curvature,angle of segmental and full lumbar lordosis.

[Anterior revision surgery for the treatment of cervical spondylosis after anterior decompression and titanium mesh fusion].

Objective: To analyze the reasons why anterior decompression and titanium mesh fusion for cervical spondylosis always show poor therapeutic effects, and to investigate the clinical effects of anterior revision surgery in these patients.

Methods: From January 2004 to December 2011, 16 patients underwent anterior decompression and titanium mesh fusion for cervical myelopathy were treated with anterior revision surgery. There were 7 males and 9 females with an average age of 61 years old (ranged from 46 to 75 years), including 11 cases with cervical spondylotic myelopathy, 2 cases with nerve root cervical spondylosis and 3 cases with mixed type cervical spondylosis.

[Treatment of atlantoaxial hemangioma with vertebroplasty through anterior approach].

Objective: To investigate the diagnostic and therapeutic experience for the atlantoaxial hemangioma with vertebral plasty through anterior approach.

Methods: From January 2005 to April 2012,6 cases were initially diagnosed as atlantoaxial hemangioma under MRI,and treated with vertebroplasty through anterior approach. There were 2 males and 4 females ranging in age from 35 to 67 years old with an average of 49 years old.