Peer-reviewed veterinary case report
Dog hip replacement fixed after loose short-stem implant revision
By Roe, S C et al.·Published in Veterinary and comparative orthopaedics and traumatology : V.C.O.T·2015·Department of Clinical Sciences, United States·View original on PubMed →
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Original publication title: Revision of a loose cementless short-stem threaded femoral component using a standard cementless stem in a canine hip arthroplasty.
- Species:
- dog
Plain-English summary
A dog had a loose hip implant one year after surgery, which was causing problems. The veterinarian replaced the loose short-stem prosthesis with a longer cementless one and performed a pelvic surgery to improve the fit of the hip joint. Two years later, the new implant was stable, and the dog showed signs of healing with bone growing into the prosthesis. The dog was active, had no limping, and even had more muscle in the leg with the new hip compared to the other leg.
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Abstract
A Helica short-stemmed femoral prosthesis that was identified as being loose one year after implantation was revised with a standard long stem cementless BFX femoral prosthesis. A double pelvic osteotomy was also performed to improve the orientation of the stable acetabular cup. Despite complete resorption of the femoral neck, and a large perforation of the lateral femoral cortex, the revision stem did not subside or rotate. The prosthetic joint did not dislocate. At re-evaluation two years after revision surgery, the prosthetic components were stable. Signs of bone ingrowth into the stem and cup were evident on radiographs. The dog had a seven percent greater thigh muscle girth in the limb implanted with the hip prosthesis compared to the contralateral limb, and was very active with no lameness.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25396223/