Total hip replacement Offers Many Choices in Devices and Surgical Approaches
By Patricia Walter 6/3/2013
Historically, the first hip replacement was performed about 40 years ago and was called the Charnley hip apparatus. This device was named after Sir John Charnley, who performed the first hip replacement. Many advancement in techniques and type of implants have been developed since then. Many Devices similar to the smooth, polished stainless steel stem and a plastic socket which was cemented into place at that time. Now there is a large variety of implants available that are either cemented or not cemented for the … Read the Rest
Define tribology and discuss its effect on total hip arthroplasty (THA).
Tribology is defined as the science of interacting surfaces in relative motion and includes the principles of friction, lubrication, and wear of implant materials. Tribology of the articulating materials in THA is the most important issue for long-term survival of the implants because the fixation of implants either with or without cement has reached excellent long-term survival rates up to 20 years. Because the long-term success … Read the Rest
Does Smoking Affect Implant Survivorship in Total Hip Arthroplasty? 2005
Russell D Meldrum, MD, L Daniel Wurtz, MD, Judy R Feinberg, PhD, and William N Capello, MD
…In summary, in this series of 147 patients (165 hips) followed an average 13 years after total hip arthroplasty, there was a significantly greater rate of component revision for aseptic loosening in patients who smoked at the time of THA and who continued to smoke for years afterward. Further study is needed to determine the extent to which smoking contributes to aseptic loosening in relationship to other known contributing factors, and whether there … Read the Rest
Typical fixed hip replacement components include a stem that inserts into the femur, a ball that replaces the head of the femur or top of the thigh bone, and a shell that lines the hip socket (acetabulum). An innovation in hip replacement design, the Mobile Bearing Hip Replacement only from Stryker features a unique polyethylene insert made with X3 Advanced Bearing Technology that is designed to fit snugly within the metal shell and over the ball to secure and buffer … Read the Rest
Will I be able to resume sexual relations now that my hip has been replace?
Most patients are able to resume safe and enjoyable intercourse after hip replacement. The hip pain and stiffness that was noted before surgery will disappear, and you will find your hip to be pain-free and have better motion. However, it may take several weeks before you are comfortable with you new hip. … Read the Rest
Concerns exist regarding using short stems during total hip arthroplasties performed in elderly patients. For this study, the authors assessed sequential bone remodeling findings in metaphyseal-loading short stems using serial radiography. A total of 100 consecutive primary THAs using short stems were performed in patients with an average age of 78.3 years…
…The radiographic findings of metaphyseal-loading short stems in elderly patients suggest that 91.3% of implants were osseointegrated. No patient required … Read the Rest
Deep venous thrombosis (DVT) and pulmonary embolism (PE) are major causes of morbidity and mortality in the perioperative period (Figure 1). Despite the availability of effective prophylactic agents, most patients who are at significant risk for postoperative DVT do not receive appropriate preventive care. This article will review the etiology of perioperative DVT and PE, the pharmacology of common anticoagulant therapies, and the risks and benefits of various prophylactic regimens. This article will also review the safe and effective use of anticoagulant and mechanical therapies in the perioperative periods with regard to type of surgery: general, gynecologic, urologic, neurosurgical and … Read the Rest