Synthetic PVA Osteochondral Implants for the Knee Joint: Mechanical Characteristics During Simulated Gait.

ABSTRACT:

Background

Although polyvinyl alcohol (PVA) implants have been developed and used for the treatment of femoral osteochondral defects, their effect on joint contact mechanics during gait has not been assessed.

Purpose/hypothesis

The purpose was to quantify the contact mechanics during simulated gait of focal osteochondral femoral defects and synthetic PVA implants (10% and 20% by volume of PVA), with and without porous titanium (pTi) bases. It was hypothesized that PVA implants with a higher polymer content (and thus a higher modulus) combined with a pTi base would significantly improve defect-related knee joint contact mechanics.

Study design

Controlled laboratory study.

Methods

Four cylindrical implants were manufactured: 10% PVA, 20% PVA, and 10% and 20% PVA

SUBMITTER: Chen T 

PROVIDER: S-EPMC9092221 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature