AIM To compare the clinical outcome and complications between Zero-P implant and cage with anterior plate in patients undergoing anterior cervical discectomy and fusion (ACDF). MATERIAL AND METHODS 50 patients underwent ACDF operation of which 23 patients had Zero-P implanted and 27 had cage and plate implanted. Preoperative and Post-operative clinical evaluation included Japanese Orthopaedic...

BACKGROUND Bioabsorbable implants are not widely used in spine surgery. This study investigated the clinical and radiological findings after anterior cervical discectomy and fusion (ACDF) in an ovine animal model with an experimental bioabsorbable cage consisting of magnesium and polymer (poly-ϵ-caprolactone, PCL) in comparison to a tricortical bone graft as the gold standard procedure. MATER...

Background. Minimally invasive spinal transforaminal lumbar interbody fusion (MIS-TLIF) at L5-S1 is technically more demanding than it is at other levels because of the anatomical and biomechanical traits. Objective. To determine the clinical and radiological outcomes of MIS-TLIF for treatment of single-level spinal stenosis low-grade isthmic or degenerative spondylolisthesis at L5-S1. Methods....

Purpose: To evaluate the safety profile and fusion rates of hollow titanium lumbar zygophyseal fusion cages compared to traditional posterolateral onlay fusion. Methods: In a prospective case controlled study, Group 1 consisted of 30 adult patients who received one or two level lumbar spinal zygapophyseal joint fusions using paired hollow titanium facet joint implants with adjunctive pedicle sc...

BACKGROUND Surgical management of cervical lesions with reconstruction procedures has remarkably expanded the options available in the last decade. Anterior cervical corpectomy with titanium mesh reconstruction is one of the effective method of cervical spine reconstruction. METHODS We studied 17 consecutive cases in whom corpectomy and decompression was performed. Fusion with titanium mesh c...

A topology optimized lumbar interbody fusion cage was made of Ti-Al6-V4 alloy by the rapid prototyping process of selective laser melting (SLM) to reproduce designed microstructure features. Radiographic characterizations and the mechanical properties were investigated to determine how the structural characteristics of the fabricated cage were reproduced from design characteristics using micro-...

A prospective, randomized clinical study was performed to determine whether unilateral pedicle screw fixation was comparable with bilateral fixation in 1- or 2-segment lumbar interbody fusion. One hundred eight patients with lumbar degenerative diseases were randomly assigned to the unilateral (n=56) or bilateral (n=52) pedicle screw fixation group. Interbody fusion was performed in 1 or 2 leve...

Objective: Our objective is to analyse the clinical effect and safety of Polyetheretherketone (PEEK) cage for lumbar fusion and the pedicle screw-based internal fixation in senile lumbar degenerative diseases, and further discuss the value of clinical application. Methods: 172 patients with senile lumber degenerative diseases admitted in our hospital during March, 2013-March, 2016 were selected...