What is revision hip surgery?
Revision hip surgery is a procedure performed to replace or repair a previous hip replacement that has failed or is no longer functioning satisfactorily. While most hip replacements are highly successful and last many years, some patients may develop problems over time that require further surgery. Revision hip replacement is generally more complex than a primary hip replacement because of scar tissue, bone loss, or damage to the surrounding soft tissues. The aim of revision surgery is to relieve pain, restore function, improve mobility, and provide a stable and durable hip joint.
Causes
There are several reasons why a hip replacement may require revision surgery. The most common causes include wear and loosening of the artificial components over time, infection around the joint, recurrent hip dislocation, implant failure, or fractures occurring around the prosthesis. In some cases, patients may also develop a reaction to wear particles generated from the implant surfaces, leading to bone loss and instability. Younger, more active patients may place greater demands on their hip replacement, increasing the likelihood of requiring revision surgery later in life.
Symptoms
Patients requiring revision hip surgery commonly experience increasing pain in the hip, groin, thigh, or buttock.
Other common symptoms include :
- Pain: worsening over time.
- Stiffness: in the hip.
- Walking: difficulty walking.
- Mobility: reduced mobility.
- Limping
- Instability: feeling that the hip is unstable or “giving way.”
- Dislocations: recurrent hip dislocations.
- Mechanical symptoms: such as clicking or grinding.
- Swelling, Redness Warmth: around the joint, if infection is present.
- Fever: in cases of infection.
- Wound drainage: in cases of infection.
- Onset: Sudden onset of symptoms following trauma or implant failure.
- Progression: Gradual worsening of symptoms over time.
Diagnosis
Your surgeon with make a detailed clinical assessment, including discussion of symptoms, previous surgeries, and physical examination of the hip.
Your surgeon will assess gait, hip movement, leg length, strength, and signs of instability or infection.
Blood tests may be ordered to investigate for infection or inflammation. Diagnosis is then confirmed with imaging studies and, in some cases, aspiration of fluid from the joint to test for infection. Identifying the exact cause of failure is essential in planning the most appropriate revision procedure.
Imaging
Imaging plays a key role in assessing the condition of the hip replacement and surrounding bone. Standard X-rays are used to evaluate implant position, loosening, wear, fractures, and bone loss. CT scans may be performed to provide more detailed information about bone quality and the extent of bone defects, particularly when planning complex revision surgery. In certain cases, MRI scans or nuclear medicine imaging may also be used to assess soft tissue damage, infection, or inflammation around the joint.
Treatment
Conservative (non-operative)
Not all painful hip replacements require immediate surgery. Conservative treatment may be appropriate in selected cases depending on the cause and severity of symptoms. Non-operative management can include physiotherapy to improve strength and mobility, activity modification, walking aids, pain relief medication, and anti-inflammatory treatments. In some cases, image-guided injections or close observation may be recommended. However, when symptoms are progressive or the implant is failing mechanically or due to infection, revision surgery is often required to prevent further damage and restore function.
Surgical Treatment
Revision hip surgery involves removing part or all of the existing hip replacement and replacing it with new components. The procedure performed depends on the reason for failure, the quality of the remaining bone, and the stability of the existing implants. Surgery may involve replacing only one component or performing a complete reconstruction of the hip joint. In more complex cases, specialised implants, bone grafts, or reinforcement devices may be required to manage bone loss and restore stability.
Recovery
Recovery following revision surgery is often longer than after a primary hip replacement, but the goal is to relieve pain, improve mobility, and allow patients to return to daily activities with a stable and functional hip.