In the present paper, the authors evaluated the extent of acetabular protrusion of the hip joint in young patients treated with hemiarthroplasty using cementless elliptical head prosthesis. The authors analyzed a population of 28 patients treated with cementless hemiarthroplasty using elliptical head prostheses mostly for the reason of AVN and false joint of the femoral neck. A special consider...

The total surface stress measured in vitro on acetabular cartilage when step-loaded by an instrumented hemiprosthesis are partitioned into fluid and cartilage network stresses using a finite element model of the cartilage layer and measurements of the layer consolidation. The finite element model is based on in situ measurements of cartilage geometry and constitutive properties. Unique instrume...

BACKGROUND AND PURPOSE Persistent postsurgical pain is a well-recognized problem after various types of surgery such as amputation and thoracotomy. The prevalence of persistent pain, and the extent to which it involves neuropathic pain, is highly dependent on the type of surgery. We investigated the prevalence of, characteristics of, and risk factors for persistent pain 1-2 years after shoulder...

Modern arthroplasty is undoubtedly the greatest contribution that orthopaedic surgery has ever made to medical science. The honour for the good results achieved with total hip replacement surgery goes chiefly to the Briton John Charnley (1911-1982). However, the Norwegian Tor Aas Christiansen (1917-1981) has also earned a place in this history. He wanted to improve the operative treatment of di...

Background and purpose - Controversies exist regarding thromboprophylaxis in orthopedic surgery. Using data in the nationwide Norwegian Hip Fracture Register (NHFR) with postoperative death and reoperation in the first 6 months after surgery as endpoints in the analyses, we determined whether the thromboprophylaxis in patients who undergo hemiarthroplasty for femoral neck fracture should start ...

BACKGROUND Currently, arthrodesis is the most commonly performed surgical procedure for the treatment of severe arthritis of the first metatarsophalangeal joint. The objective of this study was to compare the long-term clinical and radiographic outcomes of a metallic hemiarthroplasty with those of arthrodesis for the treatment of this condition. METHODS A series of patients with osteoarthriti...

BACKGROUND AND PURPOSE Previous studies on shoulder arthroplasty have usually described small patient populations, and few articles have addressed the survival of shoulder implants. We describe the results of shoulder replacement in the Norwegian population (of 4.7 million) during a 12-year period. Trends in the use of shoulder arthroplasty during the study period were also investigated. PATI...

Femoral neck fractures are common among elderly people. These fractures can cause significant changes in people’s life and many patients never return to the same activity level. For the displaced femoral neck fracture in the elderly the standard surgical procedure has been hemiarthroplasty. It has been debated for years which method of fixation is the best, cementing the prosthesis or press-fit...

BACKGROUND The treatment of choice for elderly with a displaced intra-capsular femoral neck fractures is prosthetic replacement. This is however a major surgical procedure for geriatric patients with multiple co-morbidities which can threaten hemodynamic stability and lead to death. In this study we compared the outcome of internal fixation (IF) versus hemiarthroplasty (HA) for the management o...

While acromioclavicular (AC) joint cysts are rare, their pathogenesis is well described. Usually occurring as a painless severe swelling above the AC joint.7Kontakis G.M. Tosounidis T.H. Karantanas A. Isolated synovial cyst of acromio clavicular associated with degeneration and an intact rotator cuff.Acta Orthop Belg. 2007; 73: 515-520PubMed Google Scholar,9Montet X. Zamorani-Bianchi M.P. Mehdi...