What causes aseptic loosening TKA?
Aseptic loosening (AL) is currently the fourth cause of early failure in TKR requiring revision surgery. The physiopathology of aseptic loosening is developed mainly by microparticles and detritus of polyethylene and cement that generate an inflammatory reaction, causing osteolysis and subsequent loosening.
What is aseptic loosening after knee replacement?
In aseptic loosening in a total knee replacement, the bond fails between the bone and the implant without the presence of an infection. In this scenario, the body is often attempting to digest the loose particles present. The body also may start to digest the bone, a process formally known as osteolysis.
What are symptoms of aseptic loosening?
Thigh or groin pain is the primary symptom of stem loosening in hip replacement, especially during walking. Sometimes, the pain can radiate to the knee. Knee pain, often at the start of activities, can also be a sign of implant loosening.
Can aseptic loosening be fixed?
To correct aseptic loosening, a revision surgery may be necessary. While secondary surgeries are known to be less successful than the primary operation, for a total hip arthroplasty, the failure rate accounted for 5% of cases reported after revision [83].
What happens when a hip replacement loosens?
The most common symptom of a loosening hip replacement is the development of increasing pain. This would normally be felt during weight-bearing i.e. walking. Occasionally, the pain may not be persistent but may come on suddenly, particularly with a twisting movement of the leg.
What is aseptic loosening of a joint?
Aseptic loosening refers to the failure of joint prostheses without the presence of mechanical cause or infection. It is often associated with osteolysis (bone resorption) and an inflammatory cellular response within the joint.
How long does aseptic loosening of joint implants last?
Aseptic loosening of joint implants is a disabling condition that can affect patients 10 to 20 years after joint replacement surgery (Figure (Figure1).1). Total joint replacement for end-stage joint diseases such as osteoarthritis and inflammatory rheumatoid arthritis is an effective surgical intervention [1].
What is the pathophysiology of osteolysis following total joint replacement?
Total joint replacement, although considered an excellent surgical procedure, can be complicated by osteolysis induced by implant particles and subsequent aseptic loosening of the implant. The pathogenesis of implant-associated osteolysis includes inflammatory and osteolytic processes.
Are osteolysis and aseptic loosening a major problem in orthopedics?
During the 1980s and early 1990s, aseptic loosening and osteolysis emerged as major problems in orthopedics that were perceived to limit the longevity of joint replacements [1].