Document Type : Original Article
- Hayede Jalilpour 1
- Abdolhamid Meimandi-Parizi 1
- Azizollah Khodakaram-Tafti 2
- Mohamad Saeed Ahrari-Khafi 1
- Seyedreza Hashemi 1
1 Department of Clinical Sciences, School of Veterinary Medicine, Shiraz university, Shiraz, Iran.
2 Department of Pathobiology, School of Veterinary Medicine, Shiraz university, Shiraz, Iran.
Objective- Tibiotarsal bone is the most commonly fractured long bone in small companion birds. The treatment options are basically limited to tape splinting the leg due to anatomical limitations. The goal of this study was to investigate intramedullary pinning (IM pin) as an alternative treatment option.
Design- Experimental study
Animals- Thirty mature budgerigars with an average weight of 30 g.
Procedures- The birds underwent mid shaft tibiotarsus osteotomy and the fractures were managed by tape splinting or IM pining in each group. The IM pins and splints were removed at 21st day after surgery. Radiology was performed at 0, 7, 14, 21 and 28 days after surgery. Histopathological and biomechanical evaluations were performed on specimens by day 28. Stability on palpation, lameness scores and mortality rate were recorded.
Results- Radiography showed perfect bone healing in the IM pin group versus the presence of malunion and deformity in the splint group. Histopathology demonstrated a more advanced bone healing in the IM pin group, characterized by the dominance of new bone trabeculae and new cortex formation with very little fibrous tissue. Biomechanical tests revealed significantly higher yield load, ultimate load, stiffness, and absorbed energy in the IM pin group (p <0.05). Lameness scores were significantly better in the tape splint group (p <0.05) and the mortality rate was 0 in the splint group versus 33% in the IM pin group.
Conclusion and Clinical relevance- Although IM pinning showed a more advanced level of bone healing radiographically, histopathologically, and biomechanically, the higher mortality rate and higher lameness scores make it a less desirable choice for pet birds. IM pinning technique did not prove to be as safe as the tape splintage technique. Tape splinting remains the gold standard in managing the fractures of the tibiotarsal bone in budgerigars as it offers low risk and high acceptability.
- Coles B. Surgery. Essentials of avian medicine and surgery. 3rd ed. Oxford, UK: Blackwell Publishing Ltd, 2007; 144-145.
- Tunio A, Jalila A, Meng CY, Shameha I. Experimental fracture healing with external skeletal fixation in a pigeon ulna model. Journal of Advanced Veterinary and Animal Research, 2014; 1(2): 58-64.
- Kubiak M, Forbes N. Veterinary care of raptors, musculoskeletal problems. In practice, 2011; 33(2): 50-57.
- Wright L, Mans C, Olsen G, Doss G, Amene EW, Britsch G, Christman J, Heatley J. Retrospective evaluation of tibiotarsal fractures treated with tape splints in birds: 86 cases (2006–2015). Journal of Avian Medicine and Surgery, 2018; 32(3): 205-209.
- De Matos R, Morrisey JK. Emergency and critical care of small psittacines and passerines. Seminars in Avian and Exotic Pet Medicine, 2005; 14(2): 90-105.
- Ponder J, Redig P. Surgery. In: Speer B. Current Therapy in Avian Medicine and Surgery. 1st ed. St. Louis, Missouri: Elsevier Health Sciences, 2016; 657-667.
- Carrasco DC, Shimizu N, Forbes NA. Avian orthopaedic surgery part 2: assessment, options, conservative management. Companion Animal, 2018; 23(2): 64-72.
- Naguib M. Avian radiography and radiology part 2. Companion Animal, 2017; 22(10): 614-621.
- DeCamp C, Johnston S, Déjardin L, Schaefer S. Fractures: classification, diagnosis, and treatment. In: Brinker W, Piermattei D, Flo G, editors. Handbook of Small Animal Orthopedics and Fracture Repair. 5th ed. St. Louis, Missouri: Elsevier, 2016; 24-152.
- Mshelia PC, Adeyeye AA, Abubakar AA, Denthe HD, Adeyanju JB, Kene RO, Oko EO, Garba S. Management of a transverse, mid-shaft tibiotarsal fracture in a 1-year-old Pea hen. 51st Annual Congress of the Nigerian Veterinary Medical Association, 2014.
- Kiliç S, Timurkaan N. Repair of humeral fractures with pins in pigeons. Indian Veterinary Journal, 2004; 81(9): 995-998.
- Wander KW, Schwarz PD, James SP, Powers BE, Taylor B, Wimsatt JH. Fracture healing after stabilization with intramedullary xenograft cortical bone pins: a study in pigeons. Veterinary Surgery, 2000; 29(3): 237-244.
- Goody A, Head J, Gianopoulos A, Liu S, McCoy B. A novel approach to tibiotarsal fracture management in the Hawaiian nene. Journal of Wildlife Rehabilitation, 2012; 32(1): 7-10.
- Arias J, Beato C, Espinoza A. Epoxy putty external skeletal fixation in a tibiotarsal fracture of a wild choroy parakeet (Enicognathus leptorhynchus). Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2015; 67(3): 671-678.
- De Conti JB, Schossler JE, Alievi MM, Bonfada AT, Novosad D, Silva D, Pachaly JR Use of type II external skeletal fixator for tibiotarsus osteosynthesis in white Plymouth Rock chickens: an experimental model for using in wild birds. Pesquisa Veterinaria Brasileira, 2007; 27(5): 199-204.
- Izadi S, Zabihi M, Dehghan M, Ashrafi Helan J, Soroori S. External skeletal fixation of tibiotarsus fracture in pigeon: clinical and histopathological evaluation of fracture healing. Proceedings of European Veterinary Conference Voorjaarsdagen, Amsterdam RAI, Nethelands, 2011; 259.
- Johnston MS, Thode III HP, Ehrhart NP. Bone transport osteogenesis for reconstruction of a bone defect in the tibiotarsus of a yellow-naped Amazon parrot (Amazona ochrocephala auropalliata). Journal of Avian Medicine and Surgery, 2008; 22(1): 47-56.
- Tunio A, Jalila A, Goh YM. Histologic evaluation of critical size defect healing with natural and synthetic bone grafts in the pigeon (Columba livia) ulna. Journal of Avian Medicine and Surgery, 2015; 29(2): 106-113.
- Stejskal M, Radišić B, Pećin M, Matičić D, Smolec O, Kreszinger M, Pirkić B, Kardum P. Interlocking nail for tibiotarsal fracture repair in a black swan (Cygnus atratus)—a case report. Veterinary Arhieve, 2011; 81: 785-791.
- Bueno I, Redig PT, Rendahl AK. External skeletal fixator intramedullary pin tie-in for the repair of tibiotarsal fractures in raptors: 37 cases (1995–2011). Journal of the American Veterinary Medical Association, 2015; 247(10): 1154-1160.
- Bennert BM, Kircher PR, Gutbrod A, Riechert J, Hatt JM. Evaluation of two miniplate systems and figure-of-eight bandages for stabilization of experimentally induced ulnar and radial fractures in pigeons (Columba livia). Journal of Avian Medicine and Surgery, 2016; 30(2): 111-121.
- Gouvea AS, Alievi MM, Noriega V, Dal-Bó ÍD, Pinto TM, Menezes CL, Silva RB, Silva LM, Velasque AG, Pinto LA, Coelho AJ. Titanium microplates for treatment of tibiotarsus fractures in pigeons. Ciência Rural, 2011; 41(3): 476-483.
- Islam M, Biswas D, Rhaman M, Maque M. Effects of different fixation devices on fracture treatment and evaluation by radiography in birds. Biotechnology, 2002; 1(1): 1-9.
- Doneley B. Avian medicine and surgery in practice: companion and aviary birds. 2nd ed. London, England: CRC press, 2010; 255-284.
- Harcourt-Brown NH. Orthopedic conditions that affect the avian pelvic limb. Veterinary Clinics, Exotic Animal Practice, 2002; 5(1): 49-81.
- Helmer P, Redig P. Surgical resolution of orthopedic disorders. Clinical Avian Medicine, 2006; 2: 761-774.
- Rubin J, Runge J. Surgery. In: Speer B, editor. Current therapy in avian medicine and surgery. St. Louis, Missouri: Elsevier Health Sciences, 2016; 631-68.
- Samour J. Avian medicine: anesthesia and analgesia. 3rd ed. St. Louis, Missouri: Elsevier Ltd., 2016; 187, table 7-3.
- Hatt JM, Christen C, Sandmeier P. Clinical application of an external fixator in the repair of bone fractures in 28 birds. Veterinary Record, 2007; 160(6): 188-194.
- Eshar D, Briscoe JA. External coaptation using a tape splint for treatment of distal pelvic limb fractures in small birds. Lab Animal, 2009; 38(8): 262-263.
- Rosskopf WJ. Common conditions and syndromes of canaries, finches, lories and lorikeets, lovebirds, and macaws. Seminars in Avian and Exotic Pet Medicine, 2003; 12(3): 131-143.