BACKGROUND The aim of this study is to compare the functional midterm outcome of stemless shoulder prostheses with standard anatomical stemmed shoulder prostheses and to show that the STEMLESS results are comparable to the STEMMED with respect to active maximum range of shoulder motion (ROM) and Constant score (CS). METHODS Seventeen patients underwent total shoulder arthroplasty (TSA) in 25 ...

Background and purpose - Radiostereometric analysis (RSA) is an accurate method for measurement of early migration of implants. Since a relation has been shown between early migration and future loosening of total knee and hip prostheses, RSA plays an important role in the development and evaluation of prostheses. However, there have been few RSA studies of the upper limb, and the value of RSA ...

INTRODUCTION HAND AMPUTATIONS Hand Amputations and Reconstruction Hand Rehabilitation Hand Prosthetic Devices NOMENCLATURE AND FUNCTIONAL LEVELS PRINCIPLES OF AMPUTATION SURGERY REHABILITATION Early Rehabilitation Postoperative Prosthetic Fitting Activities of Daily Living BELOW ELBOW PROSTHESES Prosthetic Sockets Terminal Devices and Wrist Units Suspension and Control ABOVE-ELBOW PROSTHESES HU...

Fractures of the upper end of the humerus that interrupt the blood supply to the humeral head may justify a prosthetic replacement. A rigorous analysis of the patient's condition and the type of fracture is a prerequisite before rejecting an indication of orthopedic treatment or fixation. The result of a hemiarthroplasty is mainly conditioned by compliance with technical rules whose purpose is ...

The results of proximal humeral replacement following trauma are substantially worse than for osteoarthritis or rheumatoid arthritis. The stable reattachment of the lesser and greater tuberosity fragments to the rotator cuff and the restoration of shoulder biomechanics are difficult. In 1992 we developed a prosthesis designed to improve fixation of the tuberosity fragments in comminuted fractur...

PURPOSE To report the clinical and radiographic results and complications of the Delta III reverse prosthesis. METHODS 24 women and 2 men aged 62 to 84 (mean, 75) years underwent total shoulder replacement using the Delta III reverse prosthesis. Patient diagnoses were massive rotator cuff tear (n=20), disabling sequelae of proximal humeral fractures (n=3), and failure of an unconstrained arth...

230 INTRODUCTION The main goals of the Revolutionizing Prosthetics (RP) effort focus on the development of high-dexterity upper-limb prostheses and controlling the prostheses by decoding signals expressing the intent of a prosthesis user. The injury suffered by the prosthesis user ultimately defines the source of these biological signals. For example, long transradial amputation patients (a bel...

Metallosis after shoulder replacement has not previously been described in the literature. We report a patient who developed extensive metallosis after implantation of an uncemented Nottingham shoulder replacement. He underwent a revision procedure. Examination of the retrieved prosthesis showed that the titanium porous coating was separating from the humeral stem and becoming embedded in the u...

A radiological study of the intraprosthetic movements of a bipolar shoulder replacement was undertaken in 25 shoulders in 20 patients with rheumatoid arthritis and rotator cuff arthropathy. No significant difference was found between intraprosthetic movement and shell - glenoid movement. Some shoulders were found to exhibit paradoxical movement at the intraprosthetic interface. Repeating the me...