Evidence about the Smith & Nephew Birmingham Hip Resurfacing | Which Medical Device
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Hip resurfacing systems
The 11th Annual NJR report contains data relating to 1.6 million arthroplasty procedures.
Credits: National Joint Registry of England and Wales
Objectives To compare the clinical and cost effectiveness of total hip arthroplasty with resurfacing arthroplasty in patients with severe arthritis of the hip.
Design Single centre, two arm, parallel group,assessor blinded, randomised controlled trial with 1:1 treatment allocation.
Setting One large teaching hospital in the United Kingdom.
Participants 126 patients older than 18 years with severe arthritis of the hip joint, suitable for resurfacing arthroplasty of the hip or total hip arthroplasty.
Intention to treat analysis showed no evidence for a difference in hip function between treatment
groups at 12 months for Oxford hip score
and Harris hip score.
Credits: BMJ
A complication has appeared in a subset of patients with MOM THAs that is described as an aseptic, lymphocyte-dominated vasculitis-associated lesion (ALVAL).
The clinical features of ALVAL are nonspecific, but patients complain of pain and may develop ?pseudotumors.?
It is hypothesized that metal ions are released from the
prosthesis and form haptens with native proteins that
elicit a type IV hypersensitivity response in the local
soft tissues.
Credits: American Journal of Clonical Pathology
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