Risk factors for screw migration after triple pelvic osteotomy

Simmons, Sharon L.; Al, Johnson; Schaeffer, David J.

doi:10.5326/15473317-37-3-269

Cited by 30 publications

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“…O uso de dois parafusos longos para a estabilização da osteotomia do ílio na OPT penetrando profundamente no sacro e não adentrando a canal medular, minimiza o afrouxamento dos mesmos (Simmons et al 2001). A colocação erroneamente ventral ao sacro pode resultar em lesão do nervo isquiático (Whelan et al 2004).…”

Section: Resultsunclassified

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Avaliação radiográfica da cobertura acetabular à cabeça femoral, após osteotomia tripla e aplicação de cunha sacroilíaca, em pelve de cadáveres de cães

et al. 2009

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Pesq. Vet. Bras. 29(8):625-631, agosto 2009 RESUMO.-Na tentativa de evitar algumas das dificuldades associadas à osteotomia pélvica tripla (OPT), foi desenvolvido experimentalmente o método de aplicação de cunha na junção sacroilíaca para aumentar a ventroversão acetabular. O objetivo deste estudo foi aplicar as técnicas de cunha sacroilíaca e OPT em cadáveres e avaliar radiograficamente a eficácia da ventroversão acetabular. Para tal, foram utilizados 10 cadáveres de cães, adultos, com 15-25 kg. Em cada hemipelve direita foi realizada OPT com placas de 20° e 40°. Na hemipelve esquerda foram aplicadas cunhas nas articulações sacroilíacas de 20° e 40°. Avaliações radiográficas em projeções ventrodorsais foram realizadas para mensuração da cobertura acetabular à cabeça femoral nas duas técnicas. De acordo com os dados obtidos pode-se observar que não houve diferença entre a técnica de OPT e o uso de cunha sacroilíaca utilizando implantes de 20° e 40°, mas ocorreu diferença significativa (p<0,05) entre os cães antes e após a aplicação dos implantes de 20° e 40°, e também entre os que receberam implantes de 20° e os de 40°. A aplicação de cunha sacroilíaca produziu resultaAvaliação radiográfica da cobertura acetabular à cabeça femoral, após osteotomia tripla e aplicação de cunha sacroilíaca, em pelve de cadáveres de cães 1Everton Regonato 2 *, Júlio C. Attempting to avoid difficulties associated to triple pelvic osteotomy (TPO), the sacroiliac wedge method was experimentally developed to increase the acetabular ventroversion. The goal of this study was to apply the techniques of sacroiliac wedge and TPO to canine cadavers and radiographically evaluate the efficacy of acetabular ventroversion. Ten cadavers of adult dogs weighting 15-25 kg were used. To each right hemipelvis the technique of TPO with 20° and 40° plates was applied. In the left hemipelvis, 20° and 40º wedges in the sacroiliac joint were applied. Radiographic evaluations in standard projections were carried out for measurement of the acetabular covering of the head of the femur in the two techniques. There was no significant differences between TPO and the use of sacroiliac wedge using implants of 20° and 40°, however a significant difference (p<0,05) could be observed before and after application of the 20° and 40° implants, as well as between those that received 20° and of 40° implants. The application of sacroiliac wedge produced similar results of those observed in TPO, and it is more feasible.INDEX TERMS: Diseases of dogs, surgery, hip dysplasia.

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Section: Resultsunclassified

“…O aumento na profundidade dos parafusos dentro do sacro no aspecto cranial da osteotomia ilial, juntamente com a cerclagem na osteotomia isquial, ajudam a evitar a migração dos parafusos (Simmons et al 2001).…”

Section: Introductionunclassified

Avaliação radiográfica da cobertura acetabular à cabeça femoral, após osteotomia tripla e aplicação de cunha sacroilíaca, em pelve de cadáveres de cães

et al. 2009

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“…While Simmons et al (2001), have reported that using a hemicerclage wire to secure ischial osteotomy decreases the frequency of screw migration, Remedios and Fries (1993) reported that, application of cerclage wire to the ischii and ilium osteotomy lines did not have any effect on screw loosening. In the screw loosening that occurred in our cases, we think that excessive movement of the animals played an important role and that rather than applying cerclage wire to the ischii, confinement of the patients to a restricted area for at least 20 days would combat this problem to a certain degree.…”

Section: Discussionmentioning

confidence: 99%

Treatment of canine hip dysplasia using triple pelvic osteotomy

Altunatmaz¹,

Yücel²,

Devecioğlu³

et al. 2003

Vet. Med. - Czech

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In this study, triple pelvic osteotomy (TPO) was carried out in a total of 22 dysplastic dogs, of which 9 were treated bilaterally and 13 unilaterally, and the position of the acetabulum was changed in a total of 31 hip joints using a special plate. It was established that, of the treated hip joints, 16 had severe, 12 medium and 3 mild dysplasia, the Norberg angle was between 70–92° and that the covering rate of the acetabulum over the femoral head changed between 5–42°. In the radiographs taken immediately after the operation, the covering rate of the acetabulum over the femoral head was determined to be very good in 25 hip joints (75% and over) and good in 6 joints (60–75%). In 5 cases, some of the screws holding the plate in place were seen to loosen in radiographs. However, this did not have any effect on the angle given to the acetabulum. In radiographs obtained 6–48 months later, degenerative joint disease was not encountered in 29 cases, with the exception of 2 cases. It was concluded that hip dysplasia, which is a hereditary disease, can be treated reasonably successfully in young dogs with TPO carried out before degenerative changes begin to occur in the joint.

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“…Complications reported for TPO surgery include diarrhea, bloody feces, hematuria, incision discharge, scrotal swelling and sciatic nerve paralysis 6,12,22 . Altunatmaz et al 12 reported that paralysis of sciatic nerve was observed in 3 cases and a collection occurred at the ischii osteotomy In 1 case of 22 cases.…”

Section: Discussionmentioning

confidence: 99%

“…Following TPO in dogs, the most frequently complications are observed pelvic canal narrowing and screw loosening 6,[22][23][24][25][26] . Screw loosening being encountered in 33-36% of cases 22 .…”

Section: Discussionmentioning

confidence: 99%

Clinical, Radiological and Computed Tomographic Evaluations of the Effect of Triple Pelvic Osteotomy for Treatment of Canine Hip Dysplasia

Yaygingül¹,

Sarıerler²

2013

Kafkas Univ Vet Fak Derg

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Triple pelvic osteotomy (TPO) is one of the main surgical procedures to prevent or modify the progress of degenerative joint disease (DJD) related with hip dysplasia in young dogs. The aim of this study was to evaluate the effects of TPO in dogs. In this study, TPO were performed in 7 dysplastic cross-breed dogs in different gender (6 female and 1 male) and body weight (13.42±2.29 kg). In all cases, 20 degrees canine TPO plates were used. Before the operation, all cases were examined clinical, radiological and by computed tomographic. Postoperative 2 nd and 6 th weeks dogs were examined clinical, radiological and by computed tomographic and after 6 month both clinical and radiological examinations were performed. The joint laxity decreased 2 weeks after the operation. Dogs could walk on the treated leg after 2 weeks. The joint laxity decreased 2 weeks after the operation. Postoperatively dogs could walked on the treated leg after 2 weeks. The postoperatively measured Norberg angles (P<0.01) and acetabular anteversion angle (P<0.05) were significantly higher and distance between caput femoris and acetabulum was significantly lower (P<0.05) than preoperatively measurements. So, contact surface between the femoral head and the acetabulum had increased and the subluxation had disappeared. In radiographs obtained 6 months later, degenerative joint disease was not encountered. It was decided that canine hip dysplasia, could be treated successfully in young dogs via TPO, carried out before degenerative changes begin within the hip joints. Keywords: Hip dysplasia, Triple pelvic osteotomy, Radiological, Computed tomography, Dog Köpeklerde Kalça Displazisi'nin Sağaltımında Triple Pelvik Osteotomi Etkilerinin Klinik, Radyolojik ve Bilgisayarlı Tomografi ile Değerlendirilmesi ÖzetTriple pelvik osteotomi (TPO) genç köpeklerde kalça displazi ile ilgili dejeneratif eklem hastalığı (DJD)'nın ilerlemesini önlemek ve değiştirmek için uygulanan cerrahi bir işlemdir. Bu çalışmanın amacı, köpeklerde TPO'nun etkilerini araştırmaktır. Bu çalışmada, farklı cinsiyet (6 dişi, 1 erkek) ve vücut ağırlığındaki (13.42±2.29 kg) displazik 7 köpekte TPO yapıldı. Bütün olgularda, 20º canin TPO plağı kullanıldı. Operasyon öncesi tüm olguların klinik, radyolojik ve bilgisayarlı tomografi ile muayeneleri yapıldı. Köpekler operasyon sonrası 2. ve 6. haftalarda klinik, radyolojik, bilgisayarlı tomografik muayene ve 6 ay sonra hem klinik hem de radyolojik muayeneleri yapılarak takip edildi. Operasyondan 2 hafta sonra eklem gevşekliği azaldı. Köpekler operasyon sonrası 2 haftada tedavi edilen bacakları üzerinde yürüyebiliyorlardı. Postoperatif ölçülen Norberg açıları (P<0.01) ve asetabular antreversiyon açısı (P<0.05) preoperatif değere göre yüksekti ve kaput femoris ve asetabulum arasındaki mesafe belirgin olarak düşük bulundu. Bu nedenle, asetabulum ve kaput femoris arasındaki temas yüzeyi artarak, subluksasyon kayboldu. Altı ay sonra elde edilen radyografilerde, dejeneratif eklem hastalığına rastlanmadı. Kalça displazili genç köpeklerde kalça eklemi...

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Risk factors for screw migration after triple pelvic osteotomy

Cited by 30 publications

References 0 publications

Avaliação radiográfica da cobertura acetabular à cabeça femoral, após osteotomia tripla e aplicação de cunha sacroilíaca, em pelve de cadáveres de cães

Avaliação radiográfica da cobertura acetabular à cabeça femoral, após osteotomia tripla e aplicação de cunha sacroilíaca, em pelve de cadáveres de cães

Treatment of canine hip dysplasia using triple pelvic osteotomy

Clinical, Radiological and Computed Tomographic Evaluations of the Effect of Triple Pelvic Osteotomy for Treatment of Canine Hip Dysplasia

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