Porous metals and alternate bearing surfaces in shoulder arthroplasty

Future Bearing Surfaces in Total Hip Arthroplasty

One of the most important issues in the modern total hip arthroplasty (THA) is the bearing surface. Extensive research on bearing surfaces is being conducted to seek an ideal bearing surface for THA. The ideal bearing surface for THA should have superior wear characteristics and should be durable, bio-inert, cost-effective, and easy to implant. However, bearing surfaces that are currently being...

Alumina-on-Polyethylene Bearing Surfaces in Total Hip Arthroplasty

The long-term durability of polyethylene lining total hip arthroplasty (THA) mainly depends on periprosthetic osteolysis due to wear particles, especially in young active patients. In hip simulator study, reports revealed significant wear reduction of the alumina ceramic-on-polyethylene articulation of THA compared with metal-on-polyethylene bearing surfaces. However, medium to long-term clinic...

Alternate axial shoulder projections.

434 July/August 2005, Vol. 76/No. 6 RADIOLOGIC TECHNOLOGY Acromial spurring, bursitis, impingement, rotator cuff strains, tendonitis and traumatic injuries to the shoulder are familiar reasons for shoulder pain. To assist in the diagnosis, plain-film radiography is indispensable for studying shoulder abnormalities. Similarly, radiographs help to demonstrate the relationship of the glenoid fossa...

Alternate Bearing in Fruit Trees1

Clinical Outcomes Assessment of Three Similar Hip Arthroplasty Bearing Surfaces

This report examines the clinical performance of three very similar total hip arthroplasty designs with distinctly different bearing surfaces used over the course 10-17 years. Clinical outcomes assessments for each group are compared in the context of varying implant related costs related to the latest technology at the time of surgery. Eighty-one surgeries were studied and differ by bearing su...