Pyrocarbon interposition arthroplasty

Case contributed by Dr Henry Knipe


Post-operative check.

Patient Data

Age: 60 years
Gender: Female

First carpometacarpal arthroplasty using the PyroDiskTM implant. Implant migration noted with approximately one-half first metacarpal base displacement. Thin 1 mm periprosthetic lucency. 

Case Discussion

Pyrocarbon interposition (PyroDiskTM) arthroplasty is a non-superior alternative to trapeziectomy for first carpometacarpal osteoarthritis.

These implants have a 0.5 mm pyrolytic carbon coating and a 0.5 mm periprosthetic lucency is a normal radiological finding. 

Macroscopic displacement is quantified as a displacement of more than one-fourth of the first metacarpal base. 

Disclosure: I, Henry Knipe, have no actual or potential ethical or financial conflict of interest in relation to this device. This case is not intended to be a personal endorsement or recommendation of this product.

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Case information

rID: 73316
Published: 6th Jan 2020
Last edited: 7th Jan 2020
Inclusion in quiz mode: Included

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