366 Canine Sports Medicine and Rehabilitation
The risk of aseptic and infection‐driven
loosening is probably greater in cemented fixa
tion. Long‐term data are currently not available
to document the true life span of these implants
(Guerrero & Montavon, 2009; Lascelles et al.,
2010; Kidd et al. 2016).
Surgical revision with preservation of a func
tional THR is generally an option to address
luxation, subsidence, and femoral fracture.
Aseptic loosening, implant failure, and par
ticularly infection do not have an encouraging
prognosis for revision, and explantation with
conversion to an effective femoral head and
neck ostectomy (FHO) may be indicated
(Fitzpatrick et al., 2014; Vezzoni et al., 2015;
Nesser et al., 2016).Postoperative management. Most patients will
bear weight on the operated limb within 24
hours of surgery. The first 4–6 weeks postsur
gery are the most critical. During this time, the
joint capsule is healing, and in a cementless hip,
osteointegration is taking place. Patients are
prone to coxofemoral luxation and subsidence(A) (B)Figure 14.14 (A) BFX press‐fit cup with a collard EBM titanium stem. (B) BFX press‐fit cup with an EBM titanium stem
augmented with a lateral bolt. Both variations to the stem are to decrease the risk of subsidence.
Figure 14.15 Hip replacement using a hybrid hip,
which is a combination of a cementless acetabular cup
with a cemented stem.