[Application of aided three-dimension CT navigation system in craniocervical junction malformation disease surgery].

Objective: To investigate the related problems of three-dimension CT navigation system applied to craniocervical junction malformation diseases surgery.

Methods: The clinical data of 61 patients with craniocervical junction malformation disease who underwent surgical treatment from July 2015 to March 2018 was retrospectively analyzed. There were 39 males and 22 females aged from 25 to 73 years old with a mean of (46.

Bi-needle technique versus transforaminal endoscopic spine system technique for percutaneous endoscopic lumbar discectomy in treating intervertebral disc calcification: a propensity score matched cohort analysis.

Objective: The aim of this study was to evaluate the clinical results of a Bi-needle technique and conventional transforaminal endoscopic spine system (TESSYS) technique for percutaneous endoscopic lumbar discectomy (PELD) in treating patients with intervertebral disc calcification (IDC).

Background: PELD has gained acceptance for treating patients with IDC. The Bi-needle technique was designed to improve the efficiency and safety of PELD.

Percutaneous Endoscopic Lumbar Discectomy in Treating Calcified Lumbar Intervertebral Disc Herniation.

Background: We retrospectively analyzed and report the clinical results of percutaneous endoscopic lumbar discectomy (PELD) in treating patients with calcified lumbar intervertebral disc herniation (CLDH).

Methods: The data from 40 patients with CLDH treated with PELD in our hospital from June 2013 to June 2017 were reviewed. Of the 40 patients, 27 (19 men; 8 women; average age, 45.

Effectiveness of Bi-Needle Technique (Hybrid Yeung Endoscopic Spine System/Transforaminal Endoscopic Spine System) for Percutaneous Endoscopic Lumbar Discectomy.

Objective: The bi-needle technique is a new technique for percutaneous endoscopic lumbar discectomy. This technique combines the advantages of Yeung endoscopic spine system (YESS) and transforaminal endoscopic spine system (TESSYS) techniques. The aim of this study was to evaluate effectiveness of the bi-needle technique for percutaneous endoscopic lumbar discectomy and compare it with the TESSYS technique.

Tantalum-coated pedicle screws enhance implant integration.

Because titanium alloy (Ti) has the natural advantage of a low elastic modulus, it has become the most commonly used material for the manufacturing of pedicle screws. However, its poor shear strength and osteogenic ability are undesirable properties. The superior osteoinductivity demonstrated by tantalum (Ta) in oral and maxillofacial surgery and joint surgery leads us to assume that the tantalum-coated pedicle screws may have better osteogenic properties and bone anchoring strength.

BMP7 enhances the effect of BMSCs on extracellular matrix remodeling in a rabbit model of intervertebral disc degeneration.

Intervertebral discs (IVDs) provide stability and flexibility to the spinal column; however, IVDs, and in particular the nucleus pulposus (NP), undergo a degenerative process characterized by changes in the disc extracellular matrix (ECM), decreased cell viability, and reduced synthesis of proteoglycan and type II collagen. Here, we investigated the efficacy and feasibility of stem cell therapy using bone marrow mesenchymal stem cells (BMSCs) over-expressing bone morphogenetic protein 7 (BMP7) to promote ECM remodeling of degenerated IVDs. Lentivirus-mediated BMP7 over-expression induced differentiation of BMSCs into an NP phenotype, as indicated by expression of the NP markers collagen type II, aggrecan, SOX9 and keratins 8 and 19, increased the content of glycosaminoglycan, and up-regulated β-1,3-glucuronosyl transferase 1, a regulator of chondroitin sulfate synthesis in NP cells.

Twenty-nine-Year Follow-up of Nonoperatively Treated Three-Level Lumbar Spondylolysis: A Case Report and Review of the Literature.

Unlabelled: This article was updated on May 25, 2016, because of a previous error. On page 4, in the address block, one of the e-mail addresses was incorrectly identified. The line had previously read "E-mail address for Y.

Timing of surgical decompression for traumatic cervical spinal cord injury.

Purpose: Although there have been numerous studies aimed at determining the effects and safety of early vs. late surgical decompression for traumatic cervical spinal cord injury, controversies still exist regarding the optimal timing of surgery for this serious spinal trauma. This study was conducted to evaluate the effectiveness and safety of early vs.

Cervical arthroplasty with Discover prosthesis: clinical outcomes and analysis of factors that may influence postoperative range of motion.

Purpose: The aim of this current study was to analyze the clinical outcomes after Discover cervical disc replacement and its effects on maintaining cervical lordosis and range of motion (ROM). The possible factors influencing postoperative ROM were analyzed.

Method: 27 men and 28 women with a mean age of 46.

Neck motion following multilevel anterior cervical fusion: comparison of short-term and midterm results.

Object: Multilevel anterior cervical decompression and fusion is indicated for patients with multilevel compression or stenosis of the spinal cord. Some have reported that this procedure would lead to a loss of cervical range of motion (CROM). However, few studies have demonstrated the exact impact of the procedure on CROM.

[Efficacies of anterior approach for cervical spinal canal stenosis].

Objective: To evaluate the therapeutic efficacies and surgical procedures of anterior approach for cervical spinal canal stenosis.

Methods: A total of 162 cases of cervical spinal canal stenosis underwent anterior surgical procedure from March 2007 to March 2010. The operative duration, the volume of blood loss and the days of postoperative hospital stay were recorded and analyzed.

The effect of multilevel anterior cervical fusion on neck motion.

Background: Anterior cervical decompression and fusion (ACDF) procedures are successful in treating multilevel cervical radiculopathy and cervical myelopathy. It was reported that this procedure would result in a loss of cervical range of motion. However, few studies have focused on the exact impact of multilevel (more than 3 levels) ACDF on cervical range of motion.

Somatosensory evoked potential from S1 nerve root stimulation.

The objective of this study was to detect cerebral potentials elicited by proximal stimulation of the first sacral (S1) nerve root at the S1 dorsal foramen and to investigate latency and amplitude of the first cerebral potential. Tibial nerve SEP and S1 nerve root SEP were obtained from 20 healthy subjects and 5 patients with unilateral sciatic nerve or tibial nerve injury. Stimulation of the S1 nerve root was performed by a needle electrode via the S1 dorsal foramen.

Loss of p16INK4, alone and with overexpression of osteopontin, correlates with survival of patients with spinal metastasis from hepatocellular carcinoma.

The survival of patients with hepatocellular carcinoma (HCC) has been improved with various diagnostic tools and treatment modalities. Consequently, spinal metastases from HCC are diagnosed more frequently. We investigated the clinical biomarkers of HCC patients presenting with spinal metastasis.

Retrospective analysis of anterior correction and fusion for adolescent idiopathic thoracolumbar/lumbar scoliosis: the relationship between preserving mobile segments and trunk balance.

The objective of this paper was to investigate the surgical strategy of the selection of the lowest instrumented vertebrae (LIV) in anterior correction for adolescent idiopathic scoliosis (AIS) and to discuss the relationship between the LIV and trunk balance. From 1998 to 2004, 28 patients with thoracolumbar/lumbar AIS (Lenke 5 type) were treated by anterior correction and fusion with a mean follow-up of 1.5 years.

[Surgical strategy for severe cervical spine dislocations].

Objective: To evaluate the rate of open reduction and surgical strategy of severe cervical dislocation.

Methods: From March 2001 to March 2006, the data of 92 cases of cervical dislocation over 1/2 were retrospectively studied. Garden Well traction with 1 - 3 kg weight were performed before operation.

[Clinical characteristics and results of cervical spinal cord injury in the patients with ossification of the posterior longitudinal ligament].

Objective: To investigate the clinical characteristics and results of cervical spinal cord injury (SCI) in the patients with ossification of the posterior longitudinal ligament (OPLL).

Methods: Nineteen patients with cervical SCI associated with OPLL were retrospectively analyzed. Data collection included: pre- and postoperative neurological function, OPLL-type, MRI signal changes and surgical approaches.

[The study of total spondylectomy in the treatment of cervical spinal tumors].

Objective: To study the surgical indications, approaches and the clinical results of the total spondylectomy and instrumentation reconstruction in the treatment of cervical spinal tumor.

Methods: From October 1998 to October 2003, 39 patients with lower cervical bone tumors, including 34 cases with primary tumor and 5 cases with metastatic tumor, were admitted and operated on with total spondylectomy. The patients underwent anteroposterior total spondylectomy including anterior cervical plating, titanium mesh reconstruction and posterior instrumentation based on the location of tumor lesions in the lower cervical spine.

[Investigation of resection and reconstruction procedure of high-sacrum tumors].

Objective: To investigate the way of resection of high-sacrum tumors and the way and duration of the spinal-pelvic TSRH or ISOLA internal fixation.

Method: From October 1998 through April 2002, 35 patients with sacral tumor were enrolled in our hospital, including 4 cases in L(5)-S(1), 2 in L(5)-S(2), 4 in S(1), 8 in S(1 - 2), 6 in S(1 - 3), 6 in S(1 - 4), 5 in S(1 - 5). 35 patients were followed by lumbo-pelvic TSRH or ISOLA internal fixation and corresponding chemotherapy and radiotherapy.