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What Is a Femoral Head Ostectomy (FHO) in Dogs?

FHO is a surgical procedure where the head and neck of the femur (thigh bone) are removed. Unlike a total hip replacement, this surgery does not involve implanting an artificial joint. Instead, the body naturally forms a fibrous false joint, reducing pain and allowing the dog to move comfortably.

This surgery is commonly recommended for small to medium-sized dogs (under 25 kg), but larger dogs can also benefit if they are active and able to rebuild muscle strength post-surgery.

Why Do Dogs Need FHO Surgery?

FHO is performed when a dog experiences chronic hip pain that does not improve with medication or physiotherapy. Common reasons for this surgery include:

  • Hip Dysplasia – A genetic condition where the hip joint is malformed, leading to arthritis and pain.
  • Severe Hip Arthritis – When joint degeneration causes persistent discomfort.
  • Legg-Calvé-Perthes Disease – A condition where the femoral head deteriorates, typically seen in small breeds.
  • Hip Fractures – When the femoral head is broken and cannot be repaired.
  • Hip Luxation (Dislocation) – When the hip joint is dislocated due to trauma and cannot be stabilized.

Benefits of FHO Surgery

  • Eliminates Bone-on-Bone Pain – Removing the femoral head stops painful joint contact.
  • Improves Mobility – Most dogs regain good function after rehabilitation.
  • Cost-Effective Alternative to Total Hip Replacement – More affordable while still providing pain relief.
  • Effective for Chronic Conditions and Injuries – Helps dogs who haven’t responded to other treatments.

What to Expect During FHO Surgery

Before Surgery

Your veterinarian at Sandringham Veterinary Hospital will assess your dog’s condition through X-rays and a physical exam to determine if FHO is the best option. Pre-surgical blood tests may also be performed to ensure your pet is healthy for anesthesia.

During Surgery

  • Your dog will be placed under general anesthesia.
  • The femoral head and neck will be carefully removed through a small incision over the hip.
  • The incision will be closed, and your dog will be monitored closely as they wake up.

After Surgery: Recovery & Rehabilitation

FHO recovery typically takes 6–12 weeks, with gradual improvements over time.

Post-Surgical Care:

  • Pain Management – Your vet will prescribe pain relief and anti-inflammatory medications.
  • Restricted Activity – Your dog should have limited movement for the first few weeks to allow proper healing.
  • Physiotherapy & Rehabilitation – Exercises, including hydrotherapy (swimming), can help rebuild muscle and improve movement.
  • Gradual Return to Normal Activity – Most dogs can resume regular activity within a few months.

Is FHO Right for Your Dog?

FHO can be a highly effective procedure for dogs experiencing hip pain due to injury or chronic conditions. While some reduction in range of motion is expected, most dogs adjust well and return to an active lifestyle.

If your dog is struggling with hip pain, our team at Sandringham Veterinary Hospital is here to help. Contact us today to book a consultation and discuss the best treatment options for your pet.