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Vet Comp Orthop Traumatol 2014; 27(06): 441-446
DOI: 10.3415/VCOT-14-02-0034
Original Research
Schattauer GmbH

Computed tomography assisted determination of optimal insertion points and bone corridors for transverse implant placement in the feline tarsus and metatarsus

M. Benlloch-Gonzalez
1   Stockholm’s Regional Small Animal Hospital Bagarmossen, Bagarmossen, Sweden
,
M. Grapperon-Mathis
1   Stockholm’s Regional Small Animal Hospital Bagarmossen, Bagarmossen, Sweden
,
B. Bouvy
2   Centre Hospitalier Vétérinaire Frégis, Arcueil, France
› Author Affiliations
Further Information

Publication History

Received: 28 February 2014

Accepted: 29 July 2014

Publication Date:
23 December 2017 (online)

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Summary

Objective: Describe optimal corridors for mediolateral or lateromedial implant placement in the feline tarsus and base of the metatarsus.

Methods: Computed tomographic images of 20 cadaveric tarsi were used to define optimal talocalcaneal, centroquartal, distal tarsal, and metatarsal corridors characterized by medial and lateral insertion points (IP), mean height, width, length and optimal dorsomedial-plantarolateral implantation angle (OIA).

Results: Talocalcaneal level: The IP were at the head of the talus and plantar to the peroneal tubercle of the calcaneus and OIA was 22.7° ± 0.3. Centroquartal level: The IP were at the centre of the medial surface of the central tarsal bone and dorsoproximal to the tuberosity of the fourth tarsal bone and OIA was 5.9° ± 0.06. Distal tarsal level: The IP were at the centre of the medial surface of the tarsal bone II and dorsodistal to the tuberosity of the fourth tarsal bone and OIA was 5.4° ± 0.14. Metatarsal level: The IP were at the dorsomedial surface of the proximal end of the metatarsal bone II and at the dorsolateral surface of metatarsal bone V and OIA was 0.5° ± 0.06. Significant positive correlation was found between body weight and the length of each corridor.

Clinical significance: Most of the corridors obtained in this study had a diameter between 1.5 mm and 2 mm with a length of 15 mm to 18 mm, which stresses the importance of their accurate placement.

Keywords

Feline - computed tomography - bone corridor - tarsus - metatarsus
 

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