INTRODUCTION: Disc Degenerative Disease (DDD) is one of the most common causes of low back pain (LBP), to date; there is no one effective treatment of DDD. Artifical disc implantation have been proposed as a motion preservation solution to DDD. However, studies of artificial disc implants have suggested that the artificial discs causes permanent changes in the kinematics of the spine and cannot...

Relative motion at interacting implant surfaces generates wear debris over time leading to periprosthetic osteolysis and device failure. Factors related to implant design, patient habitus and surgical approach will impact the generation of wear debris and influence the clinical longevity of artificial spinal disc devices. Further, surgeons play an important role in selecting the appropriate imp...

OBJECTIVE To determine the range of motion and stability of the human cadaveric cervical spine after the implantation of a novel artificial disc and vertebra system by comparing an intact group and a fusion group. METHODS Biomechanical tests were conducted on 18 human cadaveric cervical specimens. The range of motion and the stability index range of motion were measured to study the function ...

BACKGROUND Elastomeric disc replacements have been developed to restore normal shock absorption and physiologic centers of rotation to the degenerated disc. The Physio-L Artificial Lumbar Disc is an elastomeric disc which uses a compliant polycarbonate-polyurethane core with enhanced endurance properties. The objective of this study was to evaluate the safety and efficacy of the Physio-L throug...

Different opinions exist about the reasonability of total disc replacement in the human lumbar spine in the case that more than one natural disc should be replaced by an artificial one. Simulation of the biomechanical situations after surgery can help to estimate the reasonability of these procedures. The spinal shape during upright standing after surgery can be used to estimate clinical succes...

Background: Artificial cervical disc replacement has become an option for cervical radiculopathy. Previous studies have evaluated the efficacy of this alternative without the scientific rigor of a concurrent control population in oriental patients for long-term follow-up. Objective: Therefore, we asked whether the 1) clinical and 2) radiographic outcomes of Bryan cervical disc prosthesis were b...

INTRODUCTION Total disc replacement(TDR) has been suggested for surgical method to treat degenerative disc disease of the cervical spine because it decompresses nerves and preserves motion segments. The short-term outcomes of the TDR of cervical spine has been well reported to treat degenerative disc diseases as a motion preservation technique in spite of some clinical controversies such as imp...