Hip Replacement Risks and Complications
Hip replacement is a major operation. Many patients recover well and experience meaningful improvement in hip pain and walking ability, but informed consent requires a clear discussion of possible risks, complications and warning signs.
Dr. Mayur Rabhadiya explains risks according to the patient’s age, diagnosis, medical condition, bone quality, implant requirement, surgical complexity and rehabilitation capacity. A risk being possible does not mean it is likely, and technology cannot remove all risk. Patients still deciding about surgery can read When Is Hip Replacement Needed?.
Why Risk Discussion Is Important
Risk counselling helps patients understand what can happen, what the surgical team does to reduce avoidable problems, and which symptoms after surgery require assessment. It should be balanced: neither frightening nor falsely reassuring.
General Medical and Anaesthesia Risks
Temporary nausea, drowsiness, blood-pressure changes, urinary difficulty or confusion may occur after anaesthesia.
Patients with heart, lung, kidney, diabetes or blood-pressure problems may require additional monitoring.
Rare serious medical events can occur, particularly in medically high-risk patients.
Infection After Hip Replacement
Infection may involve the wound or deeper tissues around the implant. It can occur early after surgery or later when bacteria enter the bloodstream from another infection. Prevention includes skin preparation, antibiotics, operating-theatre protocols, wound care and medical optimisation, but infection risk cannot be reduced to zero.
Blood Clots and Pulmonary Embolism
Deep-vein thrombosis can occur when a blood clot forms in the leg veins. If a clot travels to the lungs, it can cause pulmonary embolism. Prevention may include early walking, ankle movements, hydration, compression devices and prescribed medication according to the patient’s risk profile.
Dislocation and Hip Precautions
Dislocation means the ball comes out of the socket. The risk depends on surgical approach, soft tissues, implant position, head size, patient behaviour, muscle control, revision surgery and other factors. Some patients are given movement precautions after surgery. These should be followed according to the surgeon’s instructions.
Leg Length Difference
Some patients feel that one leg is longer or shorter after surgery. This may be true, perceived because of preoperative deformity, or related to muscle imbalance and pelvic tilt during recovery. The surgeon balances stability, implant position, offset, soft-tissue tension and leg length; perfect symmetry cannot always be guaranteed.
Fracture, Nerve or Blood-Vessel Injury
Rare complications include fracture of the femur or pelvis, nerve irritation, nerve injury, blood-vessel injury, excessive bleeding or need for transfusion. Risk may be higher in weak bone, severe deformity, old fractures, previous surgery or revision cases.
Persistent Pain or Stiffness
Hip replacement aims to reduce pain from the damaged joint, but not every patient becomes completely pain-free. Pain may arise from muscles, tendons, spine, nerves, infection, implant issues or another condition. Stiffness and weakness can also persist if rehabilitation, muscle recovery or other joints limit progress. Read Hip Replacement Recovery Timeline.
Implant Loosening, Wear and Revision Surgery
Over time, implants can wear, loosen, fracture, become infected or require revision for instability, bone loss or pain. Longevity varies between patients. Read How Long Does a Hip Replacement Last?.
Risks Specific to Revision or Complex Surgery
Longer operating time, greater blood loss and more complex implant reconstruction.
Higher possibility of bone loss, instability, infection evaluation or restricted weight bearing after surgery.
More variable recovery compared with straightforward primary hip replacement.
Can Robotic Surgery Remove These Risks?
Robotic assistance may support planning and implant positioning in selected cases, but it cannot eliminate infection, blood clots, wound problems, fracture, nerve injury, medical risk, implant wear or rehabilitation-related issues. Read Robotic vs Conventional Hip Replacement.
Warning Signs After Hip Replacement
Fever with increasing hip pain, wound drainage, spreading redness or feeling systemically unwell.
Sudden severe hip pain, inability to bear weight, deformity or a fall followed by major pain.
New calf swelling, chest pain, breathlessness, fainting, new foot weakness or numbness.
Frequently Asked Questions
Is hip replacement a safe surgery?
It is commonly performed and many patients recover well, but it remains major surgery with possible risks that must be discussed individually.
What is the most serious risk?
Deep infection, blood clots, dislocation and major medical complications are among the important risks, although individual risk varies.
Can complications be completely prevented?
No. Risk can be reduced by good planning, surgical technique and postoperative care, but not eliminated completely.
About the Author
Dr. Mayur Rabhadiya is an Orthopedic & Joint Replacement Surgeon in Mumbai with clinical focus in primary hip replacement, robotic-assisted hip replacement, complex joint reconstruction and postoperative assessment. Written and medically reviewed by Dr. Mayur Rabhadiya. Last medically reviewed: July 2026.
Book a Hip Replacement Risk Assessment Consultation
Consultation may be useful before surgery, after complications have been explained, or when a second opinion is needed. Book an orthopedic consultation with Dr. Mayur Rabhadiya in Ghatkopar, Mumbai. Call or WhatsApp: +91 84249 03913 / +91 96113 30063.
Medical Disclaimer
This information is for general patient education and does not replace personalised surgical or anaesthetic counselling. Risks vary according to diagnosis, procedure, implant, medical condition and recovery pathway. Seek urgent medical assessment for severe or rapidly worsening symptoms.