Hip Replacement Risks and Complications

Direct Answer

Hip replacement can improve pain and function for appropriately selected patients, but it remains major surgery. Important complications include infection, blood clots, dislocation, fracture, nerve or vessel injury, leg-length difference, ongoing pain, implant wear and loosening. Risk is individual rather than zero or identical for everyone.

A useful consent discussion explains both the likelihood and the consequence of complications, which risks can be reduced before surgery, and how warning signs will be handled after discharge.

Infection and Wound Problems

Infection can be superficial or deep around the implant. Diabetes control, smoking cessation, treatment of active infections, nutrition and perioperative antibiotics are among the factors considered in prevention. Persistent drainage, fever, spreading redness or worsening pain requires prompt review.

Established deep infection may require debridement or staged revision in addition to targeted antibiotics. Early reporting can preserve treatment options.

Blood Clots and Medical Complications

Hip surgery temporarily increases the risk of deep-vein thrombosis and pulmonary embolism. Prevention may combine early mobilisation, exercises, compression and prescribed anticoagulation. The plan depends on bleeding and clot risk.

Chest pain, sudden breathlessness, coughing blood or collapse is an emergency. Heart, lung, kidney and anaesthetic complications are also reviewed during preoperative assessment.

Dislocation, Fracture and Instability

Dislocation can occur when the ball leaves the socket. Component orientation, soft tissues, spinal-pelvic movement, falls and patient factors all contribute. A sudden painful deformity and inability to stand needs emergency assessment.

Fracture can occur during implantation or after a fall. Fragile bone, revision surgery and trauma increase complexity. Treatment may require fixation, component revision or both.

Leg Length, Nerve Symptoms and Persistent Pain

The surgeon balances stability, offset and leg length. Some patients perceive a difference early because of pelvic tilt, muscle tightness or previous deformity; a measured structural difference is a separate issue. Large or persistent differences deserve assessment.

Nerve injury is uncommon but can cause weakness, numbness or pain. Persistent pain may come from infection, loosening, tendons, muscles or the spine and should be diagnosed before revision is considered.

Long-Term Implant Problems

Implants can wear, loosen or become infected years later. Activity, fixation, bearing surface, patient biology and time influence risk. A replacement cannot be guaranteed to last for life.

Keeping implant records and attending clinically appropriate follow-up helps identify changes. New pain, limp or instability after a stable period should not be dismissed as normal ageing.

Personal Risk Is More Useful Than a Generic Percentage

The same published complication rate does not apply equally to a healthy primary replacement, a patient with uncontrolled diabetes or a complex revision. The consultation should separate baseline surgical risks from factors that can be optimised and factors that cannot be changed.

Patients should leave knowing the prevention plan, the symptoms that require urgent action and whom to contact. Informed consent is not a frightening list; it is a practical plan for reducing risk and responding early if a problem occurs. Family members should know the same warning signs when they will provide early home support.

Questions Patients Commonly Ask

Is hip replacement a high-risk operation?

It is a major operation with recognised risks, but individual risk varies. Preoperative assessment and optimisation help identify and reduce modifiable risks.

Can robotic assistance remove surgical risk?

No. It can support planning and component positioning but does not eliminate infection, clots, fracture, nerve injury or other complications.

Which symptoms are an emergency after surgery?

Chest pain, breathlessness, collapse, sudden hip deformity, inability to bear weight or rapidly worsening illness requires urgent care.

Can all complications be prevented?

No. Some risk can be reduced through optimisation, technique, medication and rehabilitation, but zero-risk surgery does not exist.

Related Hip Treatment Pages

Continue with preparing for hip replacement, infection after hip replacement, and hip replacement dislocation for the connected diagnosis, treatment and recovery pathways.

Explore the complete Hip Guides hub for all related patient guides.

For focused follow-up, read Blood Clots After Hip Replacement and Leg-Length Difference After Hip Replacement.

Clinical References and Further Reading

AAOS OrthoInfo: Total Hip Replacement

NICE NG157: Joint replacement (primary): hip, knee and shoulder

AAOS OrthoInfo: Joint Replacement Infection

About the Medical Author

Dr. Mayur Rabhadiya is an Orthopedic and Joint Replacement Surgeon in Mumbai. His hip practice includes diagnosis-led assessment, AVN evaluation, primary and revision hip replacement planning, and robotic-assisted planning in selected cases.

Qualifications: MBBS, D’Ortho, DNB (Orthopedics), MNAMS (Orthopedics), FIJR (Robotic & Navigation).

Last medically reviewed: 17 July 2026. Medical reviewer: Dr. Mayur Rabhadiya.

Book a Hip Consultation in Mumbai

Book an orthopedic consultation with Dr. Mayur Rabhadiya in Ghatkopar, Mumbai. Bring current and previous imaging, operation notes and implant records when available.

Call or WhatsApp: +91 84249 03913 / +91 96113 30063.

Medical Disclaimer

This guide is for general patient education and does not replace a personal consultation, examination, diagnosis or treatment plan. Seek urgent medical care for severe or rapidly worsening symptoms, fever with wound problems, sudden inability to bear weight, chest pain or breathlessness.