2015 ISAKOS Biennial Congress ePoster #106

Biomechanical Study of the Lateral Ankle Ligaments Reconstruction Under Arthroscopic Control

Maksym Golovakha, Prof., Zaporozhye UKRAINE
Weniamin Orljanski, Prof., Vienna AUSTRIA
Igor Shyshka, MD, Zaporozhye UKRAINE
Sergey Krasnoperov, MD, Zaporozhye UKRAINE
Karl Benedetto, MD, Innsbruck AUSTRIA

Zaporozhye State Medical University, Zaporozhye, UKRAINE

FDA Status Not Applicable

Summary: The purpose of our experiment was to determine the biomechanical strength of sutures and anchors under arthroscopic control to repair lateral ankle ligaments.

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Abstract:

In the recent literature there are a lot of cases of arthroscopic reconstruction techniques of anterior talofubular ligament (ATFL), but there is no data on the biomechanical strength of the reconstructed ligaments using suture under arthroscopic control or anchors.
The purpose of our experiment was to determine the strength of ankle lateral ligament reconstruction using methods employed under arthroscopic control: U-shaped suture and anchor.
Materials and Methods. 16 cadaver ankles was used in experimental study. Anterior drawer test was studied. We simulated midsubstance and proximal ruptures of ATFL. Furthermore, the strength of U-shaped suture and anchors for reconstruction of lateral ankle ligaments was studied and the obtained data were compared with the open Brostrom procedure.
Results. Durability reduced ATFL using a U-shaped suture is 83,7N, using the anchor - 88,1N, which corresponds to 59% and 62% of strength of the intact ligament. The obtained data make it necessary in the early postoperative period to protect ligaments from the inversion stress.
Conclusions. As a result of our experiment, we determined that the strength characteristics of the ATFL repaired with a U-shaped suture and anchor corresponds to the open Brostrom procedure (U-shaped suture 83,7N; anchor 88,1N; open Brostrom procedure 68,2N).
Compliance with the strength characteristics of open Brostrom procedure and reconstruction of ATFL using a U-shaped suture and anchor under arthroscopic control allows to draw an analogy with the early postoperative rehabilitation protocol and allows to assume that early weightbearing in a orthopedic shoes with the exception of the inversion load does not affect the results of treatment of this group of patients.