Evaluation of Radiographic Results Obtained by Using Modified Dual Pelvic Osteotomy (DPO) Plate for the Treatment of Hip Dysplasia in Dogs

Year 2017, Volume: 43 Issue: 2, 140 - 145, 26.04.2017

Murat Karabağlı

https://doi.org/10.16988/iuvfd.309199

Abstract

Hip dysplasia is a developmental orthopedic joint disease that commonly effects many different dog breeds, which are generally observed bilaterally. Triple pelvic osteotomy (TPO) is one of the most common techniques used to minimize the development of joint subluxation and hip dysplasia in young dogs. However, in the course of time, different ways to reduce the complications of TPO have been described and alternative techniques such as dual pelvic osteotomy (DPO) have been developed. Materials of our study consisted of 12 dogs with hip dysplasia at 7-11 months age range. Six of these dogs were selected from the dogs for 7-9 months old while the other six were selected for dogs at the age of 10-11 months old. In operation, pubic osteotomy was performed initially and then modified DPO plates were placed in ilium following ilium osteotomy. In acute postoperative period, patients were evaluated for ischiadic nerve paralysis symptoms. Preoperative Norberg angle measurements were compared with Norberg angle measurements on ventrodorsal pelvis graphs taken at postoperative 2nd month. As a result, it was observed that DPO was effective in slowing the development of hip dysplasia in the older patient population than 4.5-9 months old. No signs of postoperative ischiadic paralysis or paresis were seen in the patients. No complications such as screw loosening and plate breakage like complications related to the modified DPO plate which we used were encountered.

Keywords

DPO, Hip Dysplasia, Dog

Kalça Displazili Köpeklerin Tedavisinde Modifiye İkili Pelvik Osteotomi (DPO) Plakası Kullanılması İle Elde Edilen Radyografik Sonuçların Değerlendirilmesi

Abstract

Kalça displazisi,
genellikle bilateral olarak gözlenen ve birçok farklı köpek ırkını etkileyen
gelişimsel bir ortopedik eklem rahatsızlığıdır. Üçlü pelvik oteotomi (TPO) genç
köpeklerde, eklemdeki sublukzasyonu ve kalça displazisi gelişimini minimize
etmek için kullanılan en yaygın tekniklerden biridir. Ancak zaman içerisinde
TPO’ nun komplikasyonlarını azaltmak için farklı yollar aranmış ve ikili pelvik
osteotomi (DPO) gibi alternatif teknikler geliştirilmiştir. Çalışmamızın
materyalini kalça displazisi tanısı konmuş 7-11 aylık yaş aralığında olan 12
köpek oluşturdu. Bu köpeklerden 6 tanesi 7-9 ay, diğer altısı ise 10-11 aylık
köpeklerden seçildi. Hastalara pubis ostektomisi yapıldı ve ilium osteotomisini
takiben modifiye DPO plakaları iliuma yerleştirildi. Operasyon sonrası, akut
postoperatif dönemde, hastalar ischiadic sinir paralizi açısından değerlendirildi.
Postoperatif 2. ay çekilen ventrodorsal pelvis grafileri üzerinde hesaplanan
Norberg açı ölçümü değerleri ile preoperatif Norberg açı ölçümleri karşılaştırıldı.
Sonuçta 4,5-9 aylıktan büyük hasta popülasyonunda da DPO’ nun kalça
displazisinin gelişimini yavaşlatmada etkin olduğu görüldü. Hastlarda
postoperatif siyatik paraliz ya da parezi bulgularına rastlanmadı. Kullanılan
modifiye DPO plakası ile ilgili vida gevşemesi, plaka kırılması gibi
komplikasyonlarla karşılaşılmadı.

Keywords

DPO, Kalça Displazisi, Köpek

References

• Alexander, J.W., 1992. The pathogenesis of canine hip dysplasia. Veterinary Clinics of North America: Small Animal Practice 22, 503-511.
• Borostyankoi, F., Rooks, R.L., Kobluk, C.N., Reed, A.L., Littledike, E.T., 2003. Result of single-session bilateral triple pelvic osteotomy with an eight-hole iliac bone plate in dogs: 95 cases (1996–1999). Journal of American Veterinary Medical Association 222, 54–59.
• Dassler, C.L., 2002. Canine hip dysplasia: Diagnosis and nonsurgical treatment. In: Slatter. D. (Ed.), Textbook of Small Animal Surgery, 3rd ed, Saunders, Philadelphia, pp. 2019-2029.
• Dejardin, L.M., Perry, R.L., Arnoczky, S.P., 1998. The effect of triple pelvic osteotomy on the articular contact area of the hip joint in dysplastic dogs: an in vitro experimental study. Veterinary Surgery 27, 194-202.
• Doornink, M.T., Nieves, M.A., Evans, R., 2006. Evaluation of ilial screw loosening after triple pelvic osteotomy in dogs: 227 cases (1991–1999). Journal of American Veterinary Medical Association 229, 535–541.
• Graehler, R.A., Weigel, J.P., Pardo, A.D., 1994. The effects of plate type, angle of ilial osteotomy, and degree of axial rotation on the structural anatomy of the pelvis. Veterinary Surgery 23, 13–20.
• Haudiquet, P.H., Guillon, J.F., 2006. Radiographic evaluation of double pelvic osteotomy versus triple pelvic osteotomy in the dog: an in vitro experimental study. In: Proc. 13th ESVOT Congress, Munich, Germany, 239-240.
• Hedhammar, A., Olsson, S.E., Andersson, S.A., Persson, L., Pettersson, L., Olausson, A., Sundgren, P.E., 1979. Canine hip dysplasia: study of heritability in 401 litters of German Shepherd dogs. Journal of American Veterinary Medical Association 174, 1012-1016.
• Kealy, R.D., Olsson, S.E., Monti, K.L., Lawler, D.F., Biery, D.N., Helms, R.W., Lust, G., Smith G.K., 1992. Effects of limited food consumption on the incidence of hip dysplasia in growing dogs. Journal of American Veterinary Medical Association 201, 857-863.
• Morgan, S.J., 1992. The pathology of canine hip dysplasia. Veterinary Clinics of North America: Small Animal Practice 22, 541-50.
• Olmstead, M.L., 1995. Canine cemented total hip replacements: state of the art. Journal of Small Animal Practice 36, 395-399.
• Olmstead, M.L., Hohn, R.B., Turner T.M., 1983. A five year study of 221 total hip replacements in the dog. Journal of American Veterinary Medical Association 183, 191-194.
• Olmstead, M.L., Hohn, R.B., Turner, T.M., 1981. Technique for canine total hip replacement. Veterinary Surgery 10, 44-52.
• Patricelli, A.J., Dueland, R.T., Adams, W.M., Fialkowski, J.P., Linn, K.A., Nordheim, E.V., 2002. Juvenile pubic symphysiodesis in dysplastic puppies at 15 and 20 weeks of age. Veterinary Surgery 31, 435-444.
• Pinna, S., Pizzuti, E., Carli, F., 2013. Effects of intertrochanteric osteotomy on Norberg angle and percent coverage of the femoral head in displastic dogs. Journal of Veterinary Science 14, 185-191.
• Raghuvir, H.B., Shivrajsinh, K.J., Dipak, N.S., Harit, D.B., Chirag, A.B., Naresh, H.K., 2013. Treatment of canine hip dysplasia: a review. Journal of Animal Sciences Advances 3, 589-597.
• Richardson, D.C., 1992. The role of nutrition in canine hip dysplasia. Veterinar Clinic of North America: Small Animal Practice 22, 529-540.
• Slocum, B., Devine, T., 1992. Pelvic osteotomy for axial rotation of the acetabular segment in dogs with hip dysplasia. Veterinary Clinics of North America: Small Animal Practice 22, 645–646.
• Slocum, B., Devine, T., 1998. Triple pelvic osteotomy. In: Bojrab, M.J., Ellison, G.W., Slocum, B. (Eds.),Current Techniques in Small Animal Surgery, 4th Edition. Lippincott Williams & Wilkins, Baltimore, pp. 1159-1165.
• Smith, G.K., Biery, D.N., Gregor, T.P., 1990. New concepts of coxofemoral joint stability and the development of a clinical stres-radiographic method for quantitating hip joint laxity in the dog. Journal of American Veterinary Medical Association 196, 59-70.
• Tomlinson, J.L., Cook, J.L., 2002. Effects of degree of acetabular rotation after triple pelvic osteotomy on the position of the femoral head in relationship to the acetabulum. Veterinary Surgery 31, 398-403.
• Vezzoni, A., 2007. Definition and clinical diagnosis of canine hip dysplasia; early diagnosis and treatment options. European Journal of Companion Animal Practice 17, 126-132.
• Vezzoni, A., Boiocchi, S., Vezzoni, L., Vanelli, A.B., Bronzo, V., 2010. Double pelvic osteotomy for the treatment of hip dysplasia in young dogs. Veterinary and Comparative Orthopaedics and Traumatology 23, 444-452.
• Whelan, M.F., McCarthy, R.J., Boudrieau, R.J., Kraus, K.H., 2004. Increased sacral screw purchase minimizes screw loosening in canine triple pelvic osteotomy. Veterinary Surgery 33, 609–614.