Detailed preoperative planning for fracture treatment with Ilizarov method in three dogs

Summary

The purpose of this study is to present preoperative planning with consideration of the anatomical variations of different dog breeds, gross anatomy, preoperative radiographs and computed tomography (CT) images, ring number, ring type and ring levels, rod positions and rod number for fracture treatment using the Ilizarov method in three dogs. In all cases, preoperative radiographs of affected limb and contralateral limb, intact extremity's CT views and anatomical atlases were used for preoperative frame planning. The frame is assembled preoperatively, rehearsed and then it is applied. Preoperative radiographs and clinical findings of affected limbs are beneficial for preoperative frame planning, whilst CT views are not as they do not provide any different vision of anatomical structures for all cases. Other colleagues' and our anatomical atlases, including cross-sectional views of limbs, are satisfactory for preoperative planning. In addition, functional and cosmetical results in all three cases were determined to be very good.

Keywords

Preoperative planning - fracture treatment - Ilizarov method - circular external skeletal fixator

^* This study was supported by The Scientific and Technical Research Council of Turkey (TUBITAK) and the Hungarian Academy of Sciences (HAS). It was also presented at World Small Animal Veterinary Association Congress in Bangkok, Thailand, October 24th-27th, 2003.

• References

• 1 Bilgili H, Cakir A, Olcay B. An atlas for the safe insertion oftranscortical wires using Ilizarov's circular external fixation system in a tibia model for dogs. Turk JVet Surg 1999; 5: 109-13.
• 2 Bilgili H, Olcay B. Circular external fixation system of Ilizarov: Part I. History, components, indications and principles of system. Turk J Vet Surg 1998; 4: 62-7.
• 3 Bilgili H, Yildirim M, Olcay B. The complication of pin track infection caused by using Ilizarov's circular external fixator on tibia of dogs. Turk J Vet Surg 1999; 5: 41-4.
• 4 Bilgili H. Circular external fixation system of Ilizarov: Part V. Fracture treatment by the Ilizarov technique.Turk JVet Surg 2004; 10 (1-2) 75-89.
• 5 Bronson DG. Effect of individual components on the mechanical stability of the Ilizarov external fixation device. Master thesis, University of Texas. Southwestern Medical Center; Dallas USA: 1995
• 6 Cakir A, Bilgili H, Kurum B. et al. The safe anatomical pin passing level of the radius/ulna and tibia for Ilizarov method in dogs. Proceedings of the 1st Ilizarov Course, Afyon 2000; 19-23.
• 7 Davidson EB. Vascular injury and delayed hemorrhage after antebrachial external skeletal fixation in a dog. Vet Comp Orthop Traumatol 1997; 10: 75-8.
• 8 Ferretti A. The application of the Ilizarov technique to veterinary medicine. In: Operative Principles of Ilizarov. Bianchi-Maiocchi A, Aronson J (eds). Baltimore: Williams & Wilkins 1991; 551-70.
• 9 Fox SM, Bray JC, Guerin SR. et al. Antebrachial deformities in the dog: treatment with external fixation. J Small Anim Pract 1995; 36: 315-20.
• 10 Gul NY, Bilgili H, Kurum B. et al. Circular external fixation system of Ilizarov: Part VI. Complications of Ilizarov technique. Turk J Vet Surg 2004; 10 (1-2) 90-7.
• 11 Hailing KB, Lewis DD, Jones RW. et al. Use of circular external skeletal fixator constructs to stabilize tarsometatarsal arthrodeses in three dogs. Vet Comp Orthop Traumatol 2004; 4: 204-9.
• 12 Latte Y, Meynard J-A. Anatomie appliqué. In: Manuel de Fixation Externe. Paris: CNVSPA-PMCAC; 1997: 76-88.
• 13 Latte Y. Application de la méthode d'Ilizarov en chirurgie orthopédique vétérinaire. Pratique Médicale et Chirurgicale de l'Animal de Compagnie 1994; 29: 545-70.
• 14 Lewis DD, Radasch RM, Beale BS. et al. Initial clinical experience with the IMEX™ circular external skeletal fixation system. Part II. Use in bone lengthening and correction of angular and rotational deformities. Vet Comp Orthop Traumatol 1999; 12: 118-27.
• 15 Marcellin-Little DJ, Ferretti A, Roe SC. et al. Hinged Ilizarov external fixation for correction of antebrachial deformities. Vet Surg 1998; 27: 231-45.
• 16 Marcellin-Little DJ, Ferretti A. Improving bone healing with the circular external fixation method. Vet Forum 1997; 14: 40-7.
• 17 Marcellin-Little DJ. Fracture treatment with circular external fixation. Vet Clin North Am Small Anim Pract 1999; 29: 1153-70.
• 18 Marti JM, Miller A. Delimitation of safe corridors for the insertion of external fixator pins in the dog 1: Hindlimb. J Small Anim Pract 1994; 35: 16-23.
• 19 Marti JM, Miller A. Delimitation of safe corridors for the insertion of external fixator pins in the dog 2: Forelimb. JSmall Anim Pract 1994; 35: 78-85.
• 20 Olcay B, Bilgili H. Experimental studies for treatments of tibia fractures in dogs by circular external fixator (Ilizarov apparatus). J Fac Vet Med UnivYuzuncuYil 1999; 7: 15-9.
• 21 Owen MA. Use of the Ilizarov method to manage a septic tibial fracture nonunion with a large cortical defect. JSmall Anim Pract 2000; 41: 124-7.
• 22 Piermattei DL, Greeley RG. An Atlas of Surgical Approaches to the Bones and Joints of Dog and Cat. Philadelphia: WB Saunders; 1993: 200-205 298-303.
• 23 Rovesti GL, Marcellin-Little DJ, Cannavale A. et al. Computer-assisted preoperative planning for optimization of placement of external skeletal fixators on the antebrachium of dogs. Proceedings of 1st World Orthopaedic Veterinary Congress. Munich: 2002: 173.
• 24 Taylor JC. Geometry ofhinge placement. Tech Orthop Protez 1990; 5: 33-9.
• 25 Taylor JC. Ring size selection. Tech Orthop Protez 1990; 5: 13-8.