Arthroscopic "second look" at the GORE-TEX ligament

Abstract

We performed an arthroscopic "second look" in 21 knees (20 patients) that had arthroscopic implantation of the GORE-TEX prosthesis for chronic ACL insuffi ciency. Arthroscopy was done on eight knees at the time of screw removal, eight for knee pain, two for giving way, and three for recurrent effusions. The de gree of synovial joint reaction, graft synovial ingrowth, and graft rupture was graded. Microscopic examination was carried out on all biopsies of the GORE-TEX liga ment.

The average patient age was 30 years and the aver age time interval from original implantation to second look was 11 months. The GORE-TEX was intact in 11 knees, 10% ruptured in 6, and completely ruptured in 4. There was no correlation between number of GORE- TEX strands ruptured and synovial reaction. No parti cles of the graft were noted in the synovium if the implant was intact, but particles were noted with graft rupture.

We conclude that the intact GORE-TEX ligament is an inert substance and does not cause significant joint reaction. Impingement in the intercondylar notch ap peared to be the most common cause of graft failure. Further study is critical to determine the natural history of the GORE-TEX ligament and the knees' response to this prosthetic device.

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