Revision Arthroplasty Hinged Knee Replacement

Management of bone defects in revision total knee arthroplasty.
Revision arthroplasty hinged knee replacement. Karpinski mr grimer rj. Daines bk dennis da. Fifty two stanmore hinged knee replacements were used as revision arthroplasties for failed arthroplasties. Right in revision surgery components with longer stems fit more securely into the bones and provide stability.
Two patients exhibited radiologic evidence of loosening but at the latest follow up examination no patients had clinical evidence of loosening. Rotating knee replacement implants are a choice for total knee replacement surgery a procedure done to replace worn out cartilage of the knee joint with a metal and plastic implant development is constantly taking place to design a knee replacement implant that will be both reliable and last a long time. Left in this x ray the primary knee replacement implant is unstable due to weakened bone. During surgery the exposure technique shown in figure a is used.
The surgeon reviews radiographs of his knee and takes him to the operating room for revision total knee arthroplasty. As with primary knee replacement the 30 day mortality rate following knee revision surgery is low between 0 1 percent and 0 2 percent according to healthline s analysis of medicare and. Purpose to evaluate the clinical and radiographic results of revision arthroplasties in tkas with instability using a rotating hinge design in elderly patients. Over time scar tissue bone loss and instability can all contribute to making a repeat surgery a much more difficult treatment.
Revision knee arthroplasty with a rotating hinge design could be an option for the treatment of instability following total knee arthroplasty tka in elderly patients. The bone graft may be an autograft which means that the bone is taken from another site in the patient s own. Instr course lect 2013. Hinged knee replacement in revision arthroplasty.
In view of the poor results and the advent of a new generation of knee arthroplasty devices hinged knee implants may have only a limited place in revision arthroplasty. Knee revision surgery which is also known as revision total knee arthroplasty is a procedure in which the surgeon removes a previously implanted artificial knee joint or prosthesis and replaces it with a new prosthesis knee revision surgery may also involve the use of bone grafts. The patients were followed for a mean of 44 7 months. There was an infection rate of 4.
Ained primary knee joints.