A review on external coaptation methods in small animal
Subject Areas : Veterinary Soft and Hard Tissue Surgery
pouriya almasi
1
,
Aboutorab Tabatabaei Naeini
2
*
1 - Department of Clinical Sciences, Faculty of Veterinary Medicine, Shiraz University, Shiraz, Iran
2 - Department of Clinical Sciences, Faculty of Veterinary Medicine, Shiraz University, Shiraz, Iran
Keywords: External coaptation, fracture, bandage, small animal, casting, sling, splinting,
Abstract :
External fixation by means of coaptation means using casts, splints, bandages, and slings to immobilize the injured limb. These methods if used properly approximate the shape of the limb on which they are applied and provide stable fixation of bone fragments without the need for surgical implants at the fracture site. External fixation of orthopedic injuries in veterinary medicine has significant advantages over open fixation and internal fixation. In most cases, the soft tissue and vascular damages, the risk of infection, and the cost of its use can be much lower than surgical intervention. Careful case selection is required to achieve successful treatment of fractures with external coaptation. Temporary fixation methods are usually used to prevent edema, relieve pain, reduce subsequent soft tissue damage, protect the wound from further contamination, prevent the conversion of closed fractures to open fractures, and stabilize the fractured particles in acutely injured animals. Various types of External coaptations are available in veterinary practice to provide the best external fixation of injuries. Therefore, it is essential for the practitioners in this field to have sufficient familiarity with different methods and their uses. As a general rule, external coaptation is an acceptable mode of fracture repair for animals that are younger than 1 year of age, because they heal faster. External coaptation best neutralizes flexion forces on distal fractures and requires stabilization of the joint above and below the fractured site. Therefore, coaptation has the disadvantage of prolonged immobilization of the limb, which can cause severe atrophy from "disuse atrophy" and possible "fracture disease".
1. Oakley RE. External Coaptation. Veterinary Clinics of North America: Small Animal Practice. 1999:1083-95.
2. Bojrab MJ, Don Ray Waldron , James P. Toombs. Orthopedic Bandaging and Splinting Techniques. Current Techniques In Small Animal Surgery Ed 5: Tenton NewMedia; 2014. p. 1119-33.
3. Muir P, Norris J. Metacarpal and metatarsal fractures in dogs. Journal of small animal practice. 1997;38(8):344-8.
4. Slatter D. Textbook of Small Animal Surgery, 3rd Edition. philadelphia: saunders; 2002.
5. Schwarz PD. Biomechanics of fractures and fracture fixation. Semin Vet Med Surg Small Anim. 1991;6(1):3-15.
6. Leighton RL. Principles of conservative fracture management: splints and casts. Semin Vet Med Surg Small Anim. 1991;6(1):39-51.
7. Weinstein J, Ralphs SC. External coaptation. Clinical Techniques in Small Animal Practice. 2004;19(3):98-104.
8. Tomlinson J. Complications of fractures repaired with casts and splints. Vet Clin North Am Small Anim Pract. 1991;21(4):735-44.
9. Beardsley SL, Schrader SC. Treatment of dogs with wounds of the limbs caused by shearing forces: 98 cases (1975-1993). J Am Vet Med Assoc. 1995;207(8):1071-5.
10. Stocker B BC, Rohner-Spengler M, Müller UW, Meichtry A, Luomajoki H. Effective therapy to reduce edema after total knee arthroplasty multi-layer compression therapy or standard therapy with cool pack—a randomized controlled pilot trial. Pflege 31 2018:19–29.
11. Fossum TW. SMALL ANIMAL SURGERY, FIFTH EDITION. Philadelphia: Elsevier; 2019.
12. Amelia M. Simpson MR, Brian S. Beale. Bandaging in Dogs and cats : external coaptation. Compendium. 2001:157-64.
13. Charles E. DeCamp SAJ, Loïc M. Déjardin, Susan L. Schaefer. Treatment of Fractures, Lameness, and Joint Disease. In: Charles E. DeCamp SAJ, Loïc M. Déjardin, Susan L. Schaefer,, Brinker PaFsHoSAOaFRFE, Saunders WB, editors. Handbook of SMALL ANIMAL ORTHOPEDICS AND FRACTURE REPAIR, FIFTH EDITION. Missouri: Elsevier; 2016. p. 24-152.
14. Piya Pinsornsak SC. Can A Modified Robert Jones Bandage After Knee Arthroplasty Reduce Blood Loss? A Prospective Randomized Controlled Trial. Clin Orthop Relat Res. 2013:1677–81.
15. Bartels K. Mechanical Testing and Evaluation of Eight Synthetic Casting Materials. Veterinary Surgery. 1985:310-8.
16. P.D. Marshall AKD, T.H. Walters, D. Lewis. When should a synthetic casting material be used in preference to plaster-of-Paris? A cost analysis and guidance for casting departments. Injury. 1992:542-4.
17. Swaim SF VD, Spalding PJ, Riddell KP,. Evaluation of the dermal effects of cast padding in coaptation casts on dogs. American Journal of Veterinary Research. 1992:1266-72.