Peer-reviewed veterinary case report
X-ray changes in dog hips 4 months after cemented vs uncemented hip
By Mostafa, Ayman A et al.·Published in BMC veterinary research·2016·Small Animal Clinic, Germany·View original on PubMed →
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Original publication title: Radiographic evaluation of early periprosthetic acetabular bone contrast and prosthetic head acetabular coverage after uncemented and cemented total hip prosthesis in dogs.
- Species:
- dog
Plain-English summary
A 7-year-old Labrador with severe hip arthritis underwent a total hip replacement (THA) to help improve his mobility. After four months, the surgery showed positive results, especially with the uncemented implant, which led to increased bone growth around the hip joint. Both types of implants (cemented and uncemented) provided stable coverage for the prosthetic head, meaning the surgery was successful in restoring function without complications. The dog was likely more comfortable and able to move better following the procedure.
People also search for: dog hip replacement recovery · Labrador hip arthritis treatment · total hip arthroplasty for dogs
Abstract
BACKGROUND: Coxofemoral osteoarthritis is a chronic, disabling condition affecting people and dogs, with THA providing an excellent return to function in severely affected joints. The principal role of THA is to restore an adequate range of motion to the hip joint while transferring load from the acetabulum in order to improve the survival of the implant and enhance the limb function in the short and long terms. The objectives of the study reported here were, therefore, to radiographically evaluate periprosthetic acetabular bone GV and to assess prosthetic head acetabular coverage after 4 months of uncemented and cemented THA in dogs. Means periprosthetic acetabular GV for each and combined 3 regions of interest (zones 1, 2 and 3) were calculated immediately and 4 months after THA. Prosthetic head Norberg (PHN) angle was also measured to assess the degree of prosthetic head acetabular coverage after 4 months of surgery. RESULTS: Zones 2 and 3 showed a significant increase in the mean bone GV after 4 months of uncemented THA. No differences in zones 1-3 after 4 months of cemented THA. Combined zones showed a significant increase in overall mean bone GV 4 months after uncemented THA; whereas, no changes were identified after 4 months of cemented THA. The PHN angles did not change after 4 months of uncemented and cemented THA and did not differ significantly between the 2 designs of hip arthroplasty. CONCLUSIONS: Regional periprosthetic acetabular bone GV varies with the design of THA. None of the designs showed periprosthetic acetabular bone lucency. No differences identified in the degree of prosthetic head acetabular coverage in both designs, indicating proper implant stability after 4 months of surgery. Further longer-term investigation on larger population is however still warranted.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/27912753/