Stripe wear scar has been highlighted with pencil lead.
Stripe wear ceramic head.
The as manufactured articular surface note the sing le grain defect fig.
Ceramic on ceramic hip retrieved for squeaking.
The determination of femoral head stripe wear magnitude and ceramic liner fracture propensity involved a multistep approach previously described.
The aim of this in vitro study was to investigate whether different angles of inclination influence the wear pattern of alumina on alumina hip joints with micro separation during the swing phase.
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Stripe wear has been reported in many ceramic on ceramic hip replacement retrievals and microseparation separation of the femoral head from the acetabular cup has been proposed as one suggested.
Metal transfer from the cup is also apparent.
Ceramic microseparation can lead to edge load ceramic head wear and squeaking.
Ceramic femoral head demonstrating a patch of wear.
The regions of wear showed a roughened surface with grain pullout.
Stresses developed during hip articulation with or without the occurrence of component impingement were determined from a global dynamic fe model of tha mechanics.
A region exhibiting stripe wear lower half of the micrograph.
Ceramic bearings have the lowest wear rates of any bearing combination 0 5 to 2 5 µ per component per year ceramic on polyethylene bearings have varied ranging from 0 to 150 µ.
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The broken ceramic fragments and the ceramic head were sent to a research laboratory and were further analyzed.
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Stripe wear has been reported in first second and third generation alumina bearings in which it has been associated with steep cup angles young patients and revision surgery 19 27.
The role of stripe wear in causing acoustic emissions from alumina ceramic on ceramic bearings.