A new test for bipolar prosthesis disassociation.
Because of several failures by dissociation of a redesigned bipolar prosthesis, a new, dynamic test was developed. This dynamic cam-out test represents a closer simulation of one possible clinical mechanism of bipolar disassociation. The results of dynamic testing are affected by the bipolar design, particularly the locking mechanism that was the problem with the redesigned prosthesis.
Kummer
Frederick
F
Department of Orthopedic Surgery, NYU-Hospital for Joint Diseases, New York, New York, USA.
Jaffe
William
W
Iesaka
Kazuho
K
Bushelow
Michael
M
Thakore
Mayur
M
Perez
Fausto
F
Kvitnitsky
Michael
M
D001696:Biomechanical Phenomena; D006622:Hip Prosthesis; D006801:Humans; D066298:In Vitro Techniques; D011475:Prosthesis Failure