Biomet | SHP (Scientific Hip Prosthesis) cup | Which Medical Device
Categorised under:
Orthopaedics
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Hip
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Acetabular components - cemented
From Which Medical Device
This cemented monoblock Arcom ® polyethylene cup has a 3mm integral flange and 3mm PMMA spacers on the surface. The design includes a 15 degree anti-dislocation rim and an anti-impingement recess, intended to increase the range of motion of the articulation.
Intended for use with the SHP hip stem.
The socket comes in 22.22, 26 and 28mm internal diameters.
Arcom ® is Biomet’s conventional proprietary compression moulded UHMWPE, and is sterilized by gamma irradiation in an inert, argon environment.
The cup was first used in 1994 and has a 5A ODEP rating.
A study by Nivbrant et al (1) showed increased migration of the SHP socket and stem compared with the Lubinus SP2, measured by RSA.
Reference:
Nivbrant, Bo , Kärrholm, Johan and Söderlund, Per(1999) 'Increased migration of the SHP prosthesis: Radiostereometric comparison with the Lubinus SP2 design in 40 cases', Acta Orthopaedica, 70: 6, 569 — 577
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