SI Luxation Lag Screw
Aproximate Cost:
$1,500 - $2,500
What It Is
Sacroiliac luxation occurs when the pelvis separates from the sacrum (the lower part of the spine) at the sacroiliac joint, usually due to trauma such as being hit by a car. A lag screw repair is a surgical technique in which a screw is placed across the joint to compress and stabilize it, restoring alignment between the pelvis and spine.
Why It’s Performed
This surgery is indicated when the pelvis is displaced and unstable, preventing normal weight-bearing or causing significant pain. Stabilizing the SI joint allows the pelvis to heal correctly, helps preserve nerve and muscle function, and improves the chances of a return to normal mobility. Repair may also be combined with fixation of other pelvic fractures when present.
Risks Involved
Possible risks include infection, screw loosening or breakage, nerve injury near the surgical site, or incomplete stabilization if the bone is severely fragmented. As with any trauma surgery, other injuries (to the bladder, nerves, or soft tissues) may complicate healing.
Typical Recovery Time
Most pets require strict rest for 6–8 weeks following surgery. X-rays may be taken during follow-up visits to confirm proper screw placement and bone healing. With appropriate rest and care, many pets return to comfortable daily activity within 2–3 months, though severe trauma cases may need a longer recovery.
Our Approach
At Howard County Animal Hospital in Ellicott City, MD, we perform sacroiliac luxation repairs with precision and an emphasis on patient comfort and recovery. Our goal is to provide advanced orthopedic surgery that is both accessible and affordable, with clear, upfront estimates so families can plan for the cost of treatment confidently.
We are committed to offering affordable surgery options with transparent pricing. The cost shown are general estimates only, and a personalized estimate will be provided after your consultation.
We accept all major credit cards, Zelle, and cash. For clients interested in payment plans, we also work with CareCredit.
What’s Included in Our Surgical Costs
Our surgical prices are designed to be as transparent as possible and include:
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All charges typically associated with the day of the procedure
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Preoperative exam the day of the procedure
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Anesthesia and monitoring required throughout the procedure
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All perioperative injectable medications administered before, during and after the procedure to keep your pet safe and comfortable
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IV catheter and fluids to maintain vascular support during your pet’s surgery and recovery
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Detailed discharge instructions for at-home aftercare
What’s NOT Included in Our Surgical Costs
The following items are not included in the surgical costs and may be recommended or required depending on your pet’s individual needs:
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Pre-operative diagnostic workups to determine the underlying problem (e.g., bloodwork, radiographs, ultrasound)
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All diagnostics associated with your pet's procedure would be included (e.g. orthopedic surgery requiring post-operative radiographs, cystotomy with stone analysis).
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Pre-anesthetic blood work
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Optional for healthy pets under 3 years old for routine procedures, but recommended to help ensure the safety of anesthesia.
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Radiographs (X-rays) associated with diagnosing or planning the procedure
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Medications to take home (such as pain meds, antibiotics, sedatives or safety collars).
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If needed: Continued care at a local ER for monitoring and stability, recommended for unstable and sick patients.
We will discuss all recommended or required services with you in advance so you have a complete understanding of your pet’s surgical plan and costs.