Effect of Femoral Head and Neck Osteotomy on Canines’ Functional Pelvic Position and Locomotion

Abstract

The long-term effect of femoral head and neck osteotomy (FHO) on the locomotory system of dogs was evaluated. The study comprised an owner questionnaire and an orthopaedic examination, anatomical measurements, and pressure-sensitive walkway analysis for dogs. Linear mixed effect models were used for statistical analysis. Ten dogs with a median of 2.5 years since their unilateral FHO were included. According to the questionnaire results, nine dogs had returned to a normal physical activity level. Muscle atrophy (p = 0.005), less extension in the coxofemoral joint (p = 0.003), and less static weight bearing on the FHO limb (p = 0.003) were observed. No consistent pattern regarding tilt or position of the pelvis was noted when measuring height of the tuber ischii (p = 0.39). Five of the dogs tilted away from, and five towards the FHO side when measured from the tuber sacrale with a Myrin goniometer. No differences regarding stance time, swing time, or peak pressure between the FHO and non-FHO limb were seen in trot (p = 0.70, p = 0.26, and p = 0.91, respectively). Over the long term, the FHO limb has muscle atrophy, decreased coxofemoral extension, and decreased static weight bearing. However, this does not seem to affect the trot of the dogs. Dog owners considered the outcome of surgery to be good or excellent.

Traumatic hip luxation in an orange‐spined hairy dwarf porcupine (Sphiggurus villosus)

“…However, decreased range of motion of the hip and muscle atrophy were detected, which did not interfere with normal activity. A study in 10 domestic dogs 6 months after FHO also observed muscle atrophy and decreased coxofemoral extension, which did not interfere with peak pressure and hindlimb stance and swing time at trotting evaluation over a pressure‐sensitive walkway 13 . Postoperative physical therapy is an option to increase limb function, but was not acceptable for a porcupine.…”

Die Hüftgelenkdysplasie des Hundes – Therapie

“…Nun wird eine schräge Osteotomie angelegt, die von der Fossa trochanterica nach distal reicht. Ob die Osteotomie den Trochanter minor beinhalten sollte, wird unterschiedlich bewertet 54 , 55 . Eine klare Studienlage, inwiefern die Resektion des Trochanter minor das funktionelle Ergebnis beeinflusst, existiert nicht.…”

Modified Ventral Femoral Head and Neck Ostectomy: A Canine Cadaver Study

“…Jest to zabieg paliatywny, po którym dochodzi do powstania elastycznego połączenia łącznotkankowego pomiędzy kością udową i miednicą. Jakość i funk-cjonalność takiego połączenia zależą od staranności, z jaką zostanie przeprowadzony zabieg, a następnie rehabilitacja pooperacyjna (2,3).…”