Comparison of reasorbeable mini anchor versus non reasorbeable: histological evaluation in an experimental rabbit model.

Abstract

PURPOSE:

Experimental animal study to evaluate the osseo integration, inflammatory response, dislocation and the reabsorption timing of the reasorbeable Mitek(®) mini anchor, in comparison with the non reasorbeable titanium based.

METHODS:

TWENTY RABBITS WERE USED: divided into two groups of ten. Each animal underwent sectioning and reinsertion of the Achilles tendon bilaterally, using a reasorbeable mini anchor on one side and a controlateral non reasorbeable mini anchor. The first group was sacrificed after 40 days and the other after 120 days. The bone tendon complex was subjected to histological study.

RESULTS:

No histological and statistical significative difference were observed in each group, with a lower inflammation response in the reasorbeable implant. Electronic microscopy evaluation demonstrates good stability of the implant in each group. At day 120 the reasorbeable anchors were not yet disappeared.

CONCLUSION:

Reasorbeable Mitek mini anchors are to be considered to guarantee a similar response and similar bone stability than non reasorbeable ones.

• Authors: Alex Pontini, Ivan Munivrana, Maria Luisa Valente, Franco Bassetto
• Journal: Muscles, ligaments and tendons journal (Muscles Ligaments Tendons J) Vol. 3 Issue 3 Pg. 204-9 (Jul 2013) ISSN: 2240-4554 [Print] Italy
• PMID: 24367781 (Publication Type: Journal Article)