title: Computed tomography assisted determination of optimal insertion points and bone corridors for transverse implant placement in the feline tarsus and metatarsus.
abstract: 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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Dr. Benlloch-Gonzalez, Stockholm's Regional Small Animal Hospital Bagarmossen, Department of Surgery, Ljusnevägen 17, Bagarmossen 12848, Sweden, E-mail: benlloch.manuel@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Benlloch-Gonzalez
authors.forename: M
authors.initials: M
authors.lastname: Grapperon-Mathis
authors.forename: B
authors.initials: B
authors.lastname: Bouvy
mesh_terms: D000818:Animals; D002415:Cats / Q000293:injuries / Q000601:surgery; D005260:Female; D005592:Fracture Fixation / Q000379:methods / Q000662:veterinary*; D050723:Fractures, Bone / Q000000981:diagnostic imaging / Q000601:surgery / Q000662:veterinary; D008297:Male; D008682:Metatarsal Bones / Q000000981:diagnostic imaging / Q000293:injuries / Q000601:surgery; D008684:Metatarsus / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery; D015641:Radiography, Interventional / Q000662:veterinary; D013639:Tarsal Bones / Q000000981:diagnostic imaging / Q000293:injuries / Q000601:surgery; D013643:Tarsus, Animal / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000662:veterinary*
keywords: Feline; bone corridor; computed tomography; metatarsus; tarsus