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. 2012;20(5):280-4.
doi: 10.1590/S1413-78522012000500007.

Simple suture and anchor in rabbit hips

Fernando Cal Garcia Filho  1 , Roberto Guarniero  1 , Rui Maciel de Godoy Júnior  1 , César Augusto Martins Pereira  1 , Marcos Almeida Matos  2 , Lucas Cortizo Garcia  3
Affiliations

Simple suture and anchor in rabbit hips

Fernando Cal Garcia Filho et al. Acta Ortop Bras. 2012.

Abstract

Objective: USING BIOMECHANICAL STUDIES, THIS RESEARCH AIMS TO COMPARE HIP CAPSULORRHAPHY IN RABBITS, CARRIED OUT WITH TWO DIFFERENT TECHNIQUES: capsulorrhaphy with simple sutures and with anchors.

Method: Thirteen New Zealand Albino (Oryctolaguscuniculus) male rabbits, twenty-six hip joints, were used. First, a pilot project was performed with three rabbits (six hip joints). This experiment consisted of ten rabbits divided into two groups: group 1 underwent capsulorrhaphy on both right and left hips with simple suture using polyglycolic acid absorbable thread, and group 2 underwent capsulorrhaphy with titanium anchors. After a four-week postoperative period, the animals were euthanized and the hip joints were frozen. On the same day of the biomechanical studies, after the hip joints were previously unfrozen, the following parameters were evaluated: rigidity, maximum force, maximum deformity and energy.

Results: There was no relevant statistical difference in rigidity, maximum force, maximum deformity and energy between the simple suture and anchor groups.

Conclusion: Through biomechanical analyses, using parameters of rigidity, maximum force, maximum deformity and energy, it has been shown that capsulorrhaphy with simple suture and with anchors has similar results in rabbit hip joints. Level of Evidence II, Prospective Comparative Study .

Keywords: Biomechanics; Experimental animal models; Hip/surgery; New Zealand rabbits; Suture Anchor.

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Conflict of interest statement

All the authors declare that there is no potential conflict of interest referring to this article.

Figures

Figure 1
Figure 1
Capsulorrhaphy with IKARIOS®-Ortocir titanium anchor in a diameter of 2mm.
Figure 2
Figure 2
(A) opening of the articular capsule in the letter; (B) insertion of the anchor in the acetabular rim; (C) articular capsulorrhaphy of the hip using the thread contained in the anchor.
Figure 3
Figure 3
Piece for biomechanical analysis was composed of the “hemi pelvis and the entire rabbit hip assembly” (HP–hemi pelvis, C- thighbone).
Figure 4
Figure 4
Description of the mean, median, minimum value, maximum value. for rigidity (Rig) of the suture and of the anchor – N=Newtons.
Figure 5
Figure 5
Description of the mean, median, minimum value, maximum value for maximum force of the suture and of the anchor – N=Newtons.
Figure 6
Figure 6
Description of the mean, median, minimum value, maximum value for energy measured up to the peak of the graph (E) of the suture and of the anchor – mJ= millijoules.
Figure 7
Figure 7
Description of the mean, median, minimum value, maximum value for maximum deformation suffered up to the peak of the graph (Dmax) of the suture and of the anchor.
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