Obq13 44 a 65 year old man presents with aseptic loosening 3 years after total knee arthroplasty.
Revision arthroplasty hinged knee replacement.
Management of bone defects in revision total knee arthroplasty.
On clinical examination 23 had good 48 fair and 29 poor results.
Karpinski mr grimer rj.
Fifty two stanmore hinged knee replacements were used as revision arthroplasties for failed arthroplasties.
Left in this x ray the primary knee replacement implant is unstable due to weakened bone.
There was an infection rate of 4.
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.
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.
Purpose to evaluate the clinical and radiographic results of revision arthroplasties in tkas with instability using a rotating hinge design in elderly patients.
Revision knee replacement is a major surgery because performing a replacement surgery can be much more complicated the second or third or fourth time in the joint.
The bone graft may be an autograft which means that the bone is taken from another site in the patient s own.
Two patients exhibited radiologic evidence of loosening but at the latest follow up examination no patients had clinical evidence of loosening.
During surgery the exposure technique shown in figure a is used.
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.
Hinged knee replacement in revision arthroplasty.
Ained primary knee joints.
Daines bk dennis da.
Right in revision surgery components with longer stems fit more securely into the bones and provide stability.
Over time scar tissue bone loss and instability can all contribute to making a repeat surgery a much more difficult treatment.
