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Femoral Head Ostectomy (FHO) Surgery: What You Need to Know

As pet owners, we want nothing more than to see our dogs live happy, active, and pain-free lives. For some dogs, conditions affecting the hip joint—such as hip dysplasia, fractures, or severe arthritis—can lead to chronic discomfort and limit their ability to enjoy the things they love. Femoral Head Ostectomy (FHO) surgery is a commonly recommended procedure that offers relief from hip pain and can restore your dog’s mobility. 

This guide explains what FHO surgery in dogs involves, when it may be recommended, and what you can expect throughout the process. Understanding this treatment option can help you make the best decision for your beloved companion. 

What is Femoral Head Ostectomy (FHO) and How Does It Work?

Femoral Head Ostectomy (FHO) surgery is a procedure designed to relieve pain in the hip joint. This surgery involves removing the femoral head, which is the ball-shaped part of the femur (thigh bone) that fits into the hip socket. When this part of the joint becomes damaged—whether by disease, injury or wear—it can lead to significant discomfort. 

By removing the femoral head, the bone-on-bone contact causing pain is eliminated. Instead of a traditional joint, the body naturally forms a “false joint” made up of scar tissue and surrounding soft tissues. This new structure cushions the area and allows your dog to regain movement without the painful friction of a damaged joint. 

FHO surgery is often an option when other treatments, like medication or physical therapy, are no longer effective. Unlike hip replacement surgery, FHO doesn’t involve implants, which can make it more accessible for many families. 

Indications for FHO Surgery 

Femoral Head Ostectomy in dogs is commonly performed to address a variety of hip-related conditions. Some of the most frequent reasons for this surgery include: 

Hip Dysplasia 

Hip dysplasia is a genetic condition in which the hip joint doesn’t form correctly, leading to instability, pain, and eventual arthritis. For dogs with severe symptoms, surgery for hip dysplasia can provide lasting relief when other treatments fail. 

Fractures of the Femoral Head 

In cases of trauma, such as falls or accidents, the femoral head may fracture. If the fracture cannot heal properly, removal of the femoral head may be necessary to restore comfort and mobility. 

Severe Arthritis or Joint Degeneration 

Over time, arthritis or joint degeneration can result in chronic pain that affects a dog’s quality of life. FHO surgery can offer a way to relieve this discomfort, allowing your dog to move more freely and enjoy everyday activities. 

The Benefits of FHO Surgery

FHO surgery is often life-changing for dogs struggling with hip pain. Some of the most notable benefits include pain relief, improved mobility, and reduces the need for implants: 

Pain Relief 

The primary goal of FHO surgery is to eliminate the source of pain. By removing the damaged portion of the hip joint, your dog can experience relief and enjoy a more comfortable life. 

Improved Mobility 

After recovery, most dogs are able to walk, run, and play again without the limitations caused by hip pain. Although high-impact activities might still be limited, many dogs regain the ability to enjoy a full range of normal activities. 

No Need for Implants

Unlike total hip replacement, FHO surgery for dogs doesn’t require artificial joint components. This makes it a simpler and more cost-effective option for many pet owners while still providing excellent results. 

Accessibility 

FHO surgery can often be performed on dogs of various sizes and ages, although smaller and medium-sized dogs tend to recover most successfully. 

Potential Risks and Complications 

While femoral head excision surgery in dogs is generally safe and effective, it’s important to be aware of potential risks, as with any surgical procedure. Your veterinarian will discuss these risks with you to ensure that you feel confident and informed before proceeding with the surgery. 

When is FHO Surgery Not Recommended? 

Although FHO surgery is a great solution for many dogs, it’s not suitable in all situations. Some scenarios where FHO may not be recommended include: 

  • Large or Heavy Dogs: The surgery tends to work best for small to medium-sized dogs. Larger dogs may experience less favorable outcomes due to the increased weight on the false joint. 
  • Mild Cases: If your dog’s hip condition is mild and manageable through medication, weight management, or physical therapy, surgery might not be necessary. 
  • Underlying Health Concerns: Dogs with significant health problems or advanced age may not tolerate surgery as well, and other options may be explored. 

Your veterinarian will assess your dog’s unique situation to help determine whether FHO surgery is the right choice. 

What to Expect After FHO Surgery 

Recovery from FHO surgery requires time, patience, and a commitment to aftercare. Here’s what you can expect: 

Pain Management 

Your veterinarian will provide medications to manage any post-surgical discomfort. Be sure to follow the dosage instructions carefully. 

Restricted Activity 

In the initial weeks following surgery, your dog will need to rest and avoid jumping or running. Crate rest or confinement in a small, quiet space can help prevent overexertion. 

Physical Therapy 

Rehabilitation exercises are often a key part of recovery and improve the femoral head ostectomy success rate for dogs. These activities, guided by your veterinarian, help strengthen the muscles around the hip and improve mobility over time. 

Weight Management 

Keeping your dog at a healthy weight is essential to reduce stress on their joints. This not only aids in recovery but also helps prevent future complications. 

With proper care and support, most dogs recover well from FHO surgery and are able to lead active, comfortable lives. For more in depth information about the recovery process after FHO surgery please see our FHO post op recovery guide

Conclusion 

Femoral Head Ostectomy (FHO) surgery is a compassionate and effective solution for dogs struggling with chronic hip pain. By removing the damaged femoral head, this procedure can relieve pain, restore mobility, and improve your dog’s overall quality of life. While FHO or canine hip dysplasia surgery isn’t the right choice for every dog, it has helped countless pets regain their ability to move freely and enjoy their favorite activities. 

If your dog is experiencing hip pain or has been diagnosed with a condition like hip dysplasia or severe arthritis, talk to us about whether FHO surgery might be the right option. Together, you can develop a care plan that meets your dog’s unique needs and ensures they have the best chance at a happy, active future. 

Works Cited  

Laura E. Peycke DVM, M. (2023) Femoral Head & Neck Ostectomy, Clinician’s Brief. Available at: https://www.cliniciansbrief.com/article/femoral-head-neck-ostectomy (Accessed: 05 February 2025).

Picture of Dr. Paul Farrell

Dr. Paul Farrell

Dr. Paul Farrell, DVM is the founder and leading surgeon at Animal Outpatient Surgery of San Diego, where he brings over twenty years of veterinary expertise to the community. Originally from Buffalo, New York, and a graduate of the University of Wisconsin, Dr. Farrell's veterinary journey began with significant large animal research at Cornell University. Focusing on canine cruciate ligament disease, he provides advanced surgical treatments like TPLO and lateral suture repairs at his Kearny Mesa facility, which he opened in 2016 to offer high-quality, accessible surgical care. Paul has also written and contributed to many scientific articles and he is a known authority in his field.
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