Cervical disc replacement is an emerging motion-preserving technology in the surgical treatment of the cervical degenerative disc disorders used as an alternative to the classic interbody fusion. We present a case report of a patient diagnosed with C6-7 right disc herniation who underwent anterior discectomy and received a total disc replacement using ProDisc C artificial disc prosthesis.

1 State Supervisor of Prosthetic Services, Ministry of Social Affairs, Helsinki, Finland. The original patellar-tendon-bearing (PTB) prosthesis was constructed at the Biomechanics Laboratory of the University of California. For details regarding the anatomical and physiological considerations (J), the biomechanics (4), and the construction (2), the reader is referred to the June 1962 issue of A...

Abstract Background This study compared the biomechanics of artificial pedicle fixation in spine reconstruction with a 3-dimensional (3D)-printed prosthesis after total en bloc spondylectomy (TES) by finite element analysis. Methods A thoracolumbar (T10–L2) model was developed and validated. Two models T12 TES were established combination different methods: Model consisted long-segment posterio...

A patient developed severe hemolytic anemia one year after insertion of a cloth-covered aortic valve prosthesis (Starr-Edwards No. 2320). The cloth over the three struts was disrupted but showed coverage with mostly organized collagen. Hemolysis stopped after replacement with a porcine heterograft. Fabric wear seems to augment the hemolysis in patients with cloth-covered artificial valves.

A HAND prosthesis can be useful in more than one way. It can be helpful in dealing with objects, and it can be helpful in interpersonal relations. The latter aspect is the one with which we are here concerned. The usefulness of a prosthesis in human relations is termed "social usefulness." To a wearer who considers his hand amputation a private matter, for example, and to one who does not wish ...

INTRODUCTION Using artificial means to treat extreme vision impairment has come closer to reality during the past few decades. The goal of this research has been to create an implantable medical device that provides useful vision for those patients who are left with no alternatives. Analogous to the cochlear implants for some forms of hearing loss, these devices could restore useful vision by c...

Although leakage through a tracheoesophageal shunt prosthesis is the main cause of prosthesis failure in a laryngectomy patient, this has never been the subject of in vitro evaluation. The aim of this study was to compare three commercially available voice prostheses by comparison of their in vitro leakage patterns, in absence or presence of a biofilm. To compare in vitro leakage patterns, a mo...

With the progress of social economy and science technology, there are more opportunities for development medical industry. Moreover, life span human beings is increasing, requirements quality getting higher higher, which makes clinical medicine rehabilitation face greater challenges. Orthodontics appliances an important part medicine. Amputees disabled limbs, by wearing appropriate mechanical p...

BACKGROUND Most patients perceive total laryngectomy as a mutilation carrying with it a loss of physical and psychological integrity. Thus, an artificial larynx system that can replace the laryngeal functions would significantly improve the quality of life for the afflicted patients. METHODS This report, with accompanying video, presents the first case in an ongoing clinical trial of laryngea...

Objective: Due to the increasing numbers of radical prostatectomy performed for prostate cancer, a substantial and increasing number patients suffer from postoperative urinary incontinence and also erectile failure. Despite the improving surgical techniques, the reported incontinence rates are between 5% and 48%. In patients with dual problems of ED and incontinence, to see whether inflatable p...