KÖPEKLERİN EKSTREMİTELERİNDE İLİZAROV EKSTERNAL FİKSATÖR UYGULAMALARI ÜZERİNE KLİNİK ÇALIŞMALAR

UZERINE KLINIK CALIŞMALAR Ozet Ilizarov ekstemal fiksator uygulamasi, antebrachium ve tibia'lartnda ortopedik Iezyonlar bulunan 30 olgu uzerinde gerceklesurilmis ve olgularin iyilesme sureleri ile elde edilen bulgular klinik ve radyolojik olarak degerlendirilmistir. Olgularin buyuk cogunlugu 1-3 yaslar arasinda genc hayvanlardi. Lezyonlardan 17' si ossa cruris' te, 13' u antebrachium' da lokalize olmustu. Bu lezyonlarin 23' u kink, 4' u daha once baska fiksasyon yontemieri uygulanan olgulann postoperatif doneminde gelisen kaynamama bozuklugu. 3' u de buyume plaklarinin erken kapanmasma bagli ekstremile deformasyonlan idi. Kiriklarin 20' si acik, 3" u kapali kmk seklindeydi. Buyume plaklarin erken kapanmasina bagli olarak; iki olguda radius kisaligi, radio-karpal eklemde subluksasyon, karpal valgus, dirsek ekleminde dejeneratif artritis ve radio-ulnar eklemde merdivenlesme saptandi. Bu olgulann birine, radius' a kortikolomi. digerine ise radius' a cift osteotomi ve ulna oslektomisi yapilarak, Ilizarov ekstemal fiksatoru uygulandi. Ucuncu olguda distal ulna buyume plaginda gecikmis endrokondral ossifikasyon belirlendi. Bu olguya da radius osteotomisi ve ulna ostektomisi yapilarak Ilizarov ekstemal fiksatoru uygulandi ve deformasyonun onemli oranda duzeldigi goruldu. Kaynamama bulunan 4 olgunun 3' unde kompresyon monofokal osteosentez teknigi uygulanarak iyilesme saglandi. Acik kinkli 3 olguda, mevcut kemik kaybini onlemek icin distraksiyon osteogenezis prensibi ile kemik kaydirma Islemi yapildi. Iki olguda tam, birinde sorunlu (kompresyon-dIstraksiyon uygulamasiyla) bir iyilesme saglanabildi. Ilizarov ekstemal fiksatoru iie sagaltimi yapilan olgulann buyuk cogunlugu operasyondan birkac gun sonra ekstremitelerini kullanabiliyorlardi. Klinik seyirlerine gore, olgulann cogunda fiksatorler 8-11. haftalar icerisinde cikartildilar. Anahtar Kelimeler: Ilizarov ekstemal fiksator, kopek. CLINICAL STUDIES ON HIZAROV EXTERNAL FIXATOR APPLICATIONS IN CANINE EXTREMITIES Summary Application of Ilizarov external fixator was carried out in 30 cases with orthopedic lesions in the ante brae hi um and tibia. Recovery periods and findings obtained from the cases were evaluated clinically and radiologically. Most of the cases were young animals between the ages of 1-3 years. Seventeen of the lesions were located in the ossa cruris and ! 3 were in the antebrachium. 23 of these lesions were fractures, 4 were non-unions which had developed in the post-operative period and 3 were limb deformities caused by premature closure of the growth plates. 20 of the fractures were open and 3 were closed. Radius shortness, radio-carpal subluxation, carpal valgus, degenerative arthritis andlncongmency in the elbow joint was seen in 2 cases due to premature closure of the growth plates. An Ilizarov external fixcator was applied to 2 of these cases of which a radial cortIcotomy was done in one, while a double osteotomy in the radius and an ulnar ostectomy was carried out in the other. In the remaining case, delayed endochondral ossification was determined in the distal ulnar growth plate. Following radial osteotomy and ulnar ostectomy, an Ilizarov external fixator was applied to this case and the deformity was seen to improve significantly. Healing was achieved in 3 of the 4 cases with non-union by applying the compression monofocal osteosynthesis technique. In cases with open fractures, in order to prevent bone loss, a bone shifting procedure was used under the principle of distraction osteogenesis. Complete recovery was achieved in 2 cases, while a complicated recovery (compression-distraction application) was seen in 1 case. Most of the cases which had been treated with an ilizarov external fixator were able to use their extremity within days after the operation. According to their clinical development, the fixators were removed from the legs of the animals within 8-11 weeks in most of the cases. Key Words: Uizarov external fixator, dog.