Vest-based sling improves hip positioning, but dogs tolerated it poorly: full analysis
A new study in the American Journal of Veterinary Research is testing whether a vest-based alternative can improve on the traditional Ehmer sling for canine hip immobilization, and the answer so far is mixed. In healthy dogs, the vest-based sling produced greater hip flexion and abduction than a traditional Ehmer sling in static standing measurements, but tolerability was poor, with only 1 of 12 dogs completing the full 14-day wear period. The paper was published May 4, 2026. (myvetcandy.com)
That question matters because the Ehmer sling has been a standard non-weight-bearing option after closed reduction of craniodorsal coxofemoral luxation for decades. Its goal is mechanical: keep the limb flexed, abducted, and internally rotated so the femoral head remains better covered by the acetabulum while soft tissues heal. It’s also used in some postoperative settings. But the technique has long had practical drawbacks, including slippage, soiling, skin injury, and variable compliance at home. (ivis.org)
The new AJVR paper evaluated 12 healthy client-owned dogs enrolled prospectively between June 2024 and August 2025. Each dog had both a traditional Ehmer sling and a commercially available vest-based sling applied sequentially to the same hindlimb, and investigators measured hip flexion, abduction, and internal rotation in a static standing position. According to coverage of the paper and earlier Kansas State abstract data tied to the project, the vest-based sling increased abduction relative to the traditional sling, while the traditional sling generated more internal rotation. That earlier abstract also reported universal slippage and soiling, no soft tissue injuries in the small cohort, and failure in most dogs because of poor tolerance or Velcro failure. (myvetcandy.com)
The vest evaluated appears to be the commercial DogLeggs product, which is marketed as an easier-to-remove, washable alternative to tape-based bandaging and is designed to let veterinarians position the limb in flexion, abduction, and internal rotation. That convenience claim is part of the product’s appeal, especially in cases where repeated rechecks or rehabilitation access are needed. But the study’s early message is that better theoretical positioning does not automatically translate into better wearability in real dogs, even before testing in clinical hip luxation cases. (dogleggs.com)
Industry and clinical reaction appears cautious rather than celebratory. Secondary coverage framed the findings as encouraging on joint positioning but not enough to support a practice change, emphasizing that more research is needed before the vest-based approach could be considered a new standard. That caution is consistent with the broader literature on sling management after hip reduction. In a 92-dog multicenter JAVMA study, 43.5% of dogs had reluxation at or near sling removal, and 50% developed soft tissue injuries secondary to sling use, including severe injuries in 17 dogs and one amputation. (myvetcandy.com)
Why it matters: For general practitioners, ER teams, surgeons, and rehab services, this study highlights a familiar tension: the ideal hip position on paper may be less important than whether a device stays on, stays clean, and is tolerated by the patient and pet parent. If a vest-based system truly improves abduction, that could be clinically meaningful because abduction contributes to femoral head coverage. But if the system slips, soils, or fails mechanically, any theoretical biomechanical advantage may disappear quickly outside the hospital. Inference: the real opportunity here may be less about replacing the Ehmer sling outright and more about refining immobilization tools for selected patients, body types, or supervised settings. (vet.k-state.edu)
The study also lands in a clinical environment where some surgeons already question how much benefit any Ehmer-type immobilization adds after closed reduction, given known reluxation and complication rates. That doesn’t make the new vest irrelevant. It does mean future evidence will need to go beyond goniometric measurements in healthy dogs and show whether the device improves outcomes that matter in practice, including maintained reduction, fewer skin complications, easier home care, and better adherence. (researchgate.net)
What to watch: The next important step is a clinical trial in dogs with actual craniodorsal hip luxation, ideally comparing reduction maintenance, complication rates, recheck burden, and pet parent-reported manageability over the usual 10- to 14-day or 2- to 3-week immobilization window. Until then, the vest-based sling looks more like an interesting design iteration than a clear replacement for traditional bandaging. (ivis.org)