Peer-reviewed veterinary case report
Nano total hip replacement outcomes in 12 small breed dogs
By Ireifej, Shadi et al.·Published in Veterinary surgery : VS·2012·Department of Surgery, United States·View original on PubMed →
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Original publication title: Nano total hip replacement in 12 dogs.
- Species:
- dog
Plain-English summary
Twelve small dogs, including Yorkshire Terriers and Toy Poodles, underwent a new type of hip replacement surgery called nano total hip replacement (NanoTHR) to help with severe lameness. While most dogs showed good improvement after the surgery, three experienced serious complications, including fractures near the implant. After additional treatment, all dogs improved, with eight achieving a grade 1 lameness score, indicating they were moving well. This surgery could be a promising option for small breed dogs with hip issues, but more research is needed to ensure its safety and effectiveness.
People also search for: dog hip replacement surgery · small dog lameness treatment · Yorkshire Terrier hip problems · Toy Poodle hip surgery recovery
Abstract
OBJECTIVE: To determine the short-term clinical outcome of nano total hip replacement (NanoTHR) in dogs. STUDY DESIGN: Retrospective case series. ANIMALS: Dogs (n = 12). METHODS: Medical records (2009-2011) of dogs that had nano-THR were reviewed for signalment, weight, clinical signs, side, age, prosthesis sizes, concurrent surgeries performed, complications, operative time, 3-month postoperative pelvic radiograph results, and lameness scores. RESULTS: Breeds were Yorkshire Terriers (n = 6), Toy Poodles (2), with 1 each of Maltese, Pomeranian, Cavalier King Charles Spaniel, and Shih-Tzu. Median body was 4.87 kg (range, 2.5-5.90 kg) and median age, 35.75 months (range, 12-144 months). Radiographs were taken in 4 dogs at 12 days (n = 2), 14 days (1), and 30 days (1) after surgery because of presentation for an acute grade 5 lameness. Three dogs had femoral fractures distal to the femoral implant tip and 1 dog displaced the acetabular implant medially. After revision surgery, all femoral fractures were assessed as healed with intact plate fixation. The dog with the medially displaced acetabular component responded to conservative management including strict confinement and analgesic administration. Eight dogs (58%) were assigned a grade 1 lameness and 4 dogs were grade 2 (33%) at 12-week examination. The 3 dogs with grade 5 lameness scores found to have femoral fractures within 1 month after surgery, subsequently improved to grade 1 (n = 1) and 2 (2) 12 weeks after revision surgery. The dog with medial acetabular displacement improved to a grade 2 lameness 12 weeks after conservative management. CONCLUSIONS: Although all 12 dogs had good-to-excellent outcomes, 33% experienced significant complications associated with the technique. As improvements in instrumentation and refinements in the technique are developed, NanoTHR can be considered an alternative to the femoral head and neck ostectomy (FHO) or medical management of coxofemoral disease for toy breed dogs. Further studies with a larger number of dogs and longer follow-up times are required.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/23253038/