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Objectives:
This ex-vivo study assessed the degree of acetabular rotation (AR) achieved by single pelvic osteotomy (SPO) as compared to double pelvic osteotomy (DPO) on canine adult pelvic skeletons.
Methods:
Five canine cadavers, median 28 kg (range 26-32) and 7 years (range 4-9), were used. The pelves were dissected free of soft tissues and fastened to a table. On each side of the pelvis, two 2 mm Kirschner wires were inserted: the first pin was applied in the dorsal aspect of the acetabular rim, the second was approximated to the geometric centre of the ilial wing. A jig system was employed to position the pins in parallel fashion. A fixed digital camera system was positioned to detect the pin’s orientation. SPO was performed on one and DPO on the other side employing 25° DPO plates. Pre-osteotomy images confirmed the parallelism of the landmark pins; post-osteotomy photographs assessed the pin’s deviation which showed the changing angulation between the two pins, corresponding to the degree of ventro-rotation of the acetabulae.
Results:
The mean AR following SPO was 15.65±4.52, and 18.82±5.27 after DPO. There was a ~3.2° difference (18%) between the AR angles achieved by either SPO or by DPO (p = 0.043), confirming feasibility and efficacy of SPO in this experimental set-up
Conclusions:
As shown in this cadaver model, on the average, the SPO technique yielded only 3.2° less acetabular ventro-version (18%) as compared to DPO, when using 25° pre-angled DPO plates
34th Annual Scientific Meeting proceedings
Stream:
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Session:
Date/Time: 30-11--0001 (00:00 - 00:00) | Location:
Date/Time: 30-11--0001 (00:00 - 00:00) | Location:
Acetabular ventro-version angles obtained by single versus double pelvic osteotomy in canine hip joints using a 25° DPO plate - an ex-vivo study.
Tamburro R1, Peirone B2, Niebauer G*1
1University of Teramo, Department of Veterinary Medicine, località piano d’Accio, 64100 Teramo Italy., Teramo, Italy, 2University of Turin, Department of Veterinary Sciences, Largo Braccini 2, 10095 Grugliasco, Turin, Italy., Turin, Italy.
Objectives:
This ex-vivo study assessed the degree of acetabular rotation (AR) achieved by single pelvic osteotomy (SPO) as compared to double pelvic osteotomy (DPO) on canine adult pelvic skeletons.
Methods:
Five canine cadavers, median 28 kg (range 26-32) and 7 years (range 4-9), were used. The pelves were dissected free of soft tissues and fastened to a table. On each side of the pelvis, two 2 mm Kirschner wires were inserted: the first pin was applied in the dorsal aspect of the acetabular rim, the second was approximated to the geometric centre of the ilial wing. A jig system was employed to position the pins in parallel fashion. A fixed digital camera system was positioned to detect the pin’s orientation. SPO was performed on one and DPO on the other side employing 25° DPO plates. Pre-osteotomy images confirmed the parallelism of the landmark pins; post-osteotomy photographs assessed the pin’s deviation which showed the changing angulation between the two pins, corresponding to the degree of ventro-rotation of the acetabulae.
Results:
The mean AR following SPO was 15.65±4.52, and 18.82±5.27 after DPO. There was a ~3.2° difference (18%) between the AR angles achieved by either SPO or by DPO (p = 0.043), confirming feasibility and efficacy of SPO in this experimental set-up
Conclusions:
As shown in this cadaver model, on the average, the SPO technique yielded only 3.2° less acetabular ventro-version (18%) as compared to DPO, when using 25° pre-angled DPO plates
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