If your doctor has recommended hip replacement surgery, you may have come across the terms cemented and uncemented — and wondered what the difference is and which one is right for you.
The choice between these two approaches is one of the most important surgical decisions in hip replacement — and it is based on your age, bone quality, activity level, and overall health.
This complete guide explains everything you need to know about cemented hip replacement in clear, straightforward language.
What Is a Cemented Hip Replacement?
A cemented hip replacement — also called cemented hip arthroplasty — is a surgical procedure where the artificial hip implant is fixed into the bone using medical-grade bone cement (polymethylmethacrylate, or PMMA).
The surgeon removes the affected femoral head and worn hip socket, shapes the bone to accept the new implant, then applies bone cement before placing the prosthetic stem and cup. The cement fills microscopic gaps between the implant and bone, locking the prosthesis firmly in place the moment surgery is complete.
This is the defining advantage of the cemented approach: immediate, stable fixation that doesn’t depend on bone growing into the implant over time.
Cemented vs Uncemented Hip Replacement
Understanding the difference between cemented and uncemented hip replacement helps you have a more informed conversation with your surgeon.
How They Fix the Implant
| Cemented | Uncemented | |
| Fixation method | Bone cement (PMMA) bonds the implant to bone immediately | Porous/textured surface — bone grows into the implant over weeks |
| Initial stability | Immediate — from day of surgery | Develops over 6–12 weeks as bone integrates |
| Recovery | Can often bear full weight sooner | Requires more cautious early weight-bearing |
| Best for | Older patients, reduced bone density, osteoporosis | Younger patients with good bone quality |
| Long-term data | 50+ years of outcome data | 30+ years of outcome data |
Which Is Better — Cemented or Uncemented?
Neither is universally better — the right choice depends entirely on the patient’s condition. Cemented hip replacement consistently produces excellent results in older patients and those with osteoporosis or poor bone quality. Uncemented fixation generally performs better in younger, more active patients where bone ingrowth can be relied upon.
Many surgeons use a hybrid approach — cementing the femoral stem while leaving the acetabular cup uncemented — combining the best of both fixation methods based on the anatomy of each individual patient.
Who Needs a Cemented Hip Replacement?
Cemented hip replacement is typically recommended for:
- Older patients (typically 65 and above) — where bone density naturally decreases and reliable ingrowth cannot be guaranteed
- Patients with osteoporosis — reduced bone quality makes cementless fixation less predictable; cement provides consistent stability regardless of bone density
- Patients with poor bone stock — due to previous fractures, avascular necrosis, or long-term steroid use
- Patients requiring revision surgery — where the bone around a previous implant has been compromised
- Lower activity level patients — where the long-term wear advantages of cementless fixation are less relevant
- Patients with specific femoral anatomy — certain bone canal shapes are better suited to cemented stem designs
Your orthopaedic surgeon will assess your bone density (often through a DEXA scan), X-rays, and overall health to determine the most appropriate fixation method for your specific situation.
Benefits of Cemented Hip Replacement
Cemented hip replacement has been performed for over 50 years — and its long track record reveals consistent, well-documented advantages:
Immediate Stability After Surgery
The most significant advantage is that the implant is fully stable from the moment surgery is complete. Patients — particularly elderly ones — can often bear weight on the operated hip the same day or the morning after surgery, without waiting for biological bone ingrowth.
Reliable Results in Older Patients
For patients over 65 or those with osteoporosis, cemented fixation provides predictable outcomes that do not depend on the body’s ability to generate new bone growth into the implant. This makes it one of the most reliable options for this patient group.
Proven Long-Term Outcome Data
With over five decades of clinical follow-up data, cemented hip replacement has the most extensive body of evidence of any hip replacement technique. Survival rates of 90–95% at 10 years and 80–85% at 20 years are well-documented in major joint registries.
Immediate Pain Relief
Because the implant is locked firmly in place from day one, patients typically experience significant pain relief very early in the recovery process — often comparing the feeling favourably to years of pre-surgical hip pain within the first few days.
Cost-Effective for Eligible Patients
Cemented implant systems are generally less expensive than cementless alternatives — making them a cost-effective choice for patients for whom the biological advantages of cementless fixation are not relevant.
Risks of Cemented Hip Replacement
Like all surgical procedures, cemented hip arthroplasty carries potential risks. Understanding these helps patients make fully informed decisions.
Bone Cement Implantation Syndrome (BCIS)
One of the most discussed risks specific to cemented hip replacement is bone cement implantation syndrome — a cardiovascular response that can occur during the cementation process. Fat and cement particles may enter the bloodstream during pressurisation of the cement. Advanced surgical techniques, careful patient monitoring, and preoperative optimisation have significantly reduced this risk — but it remains a consideration in high-risk patients with significant cardiovascular disease.
Cement Fracture and Loosening Over Time
Over many years, the cement mantle can develop micro-fractures — particularly in younger, more active patients who place higher mechanical demands on the implant. This can eventually lead to implant loosening and the need for revision surgery. This is a primary reason why cementless fixation is preferred in younger patients.
General Surgical Risks
As with any major joint replacement surgery:
- Infection — managed with antibiotic protocols and sterile technique; rare but serious if it occurs
- Deep vein thrombosis (DVT) — blood clots in the leg veins; prevented with blood thinners and early mobilisation
- Dislocation — the new hip joint can dislocate, particularly in the early recovery period; activity precautions minimise this risk
- Leg length discrepancy — minor differences in leg length can occur; most resolve or are well-tolerated
- Nerve or blood vessel injury — rare with experienced surgical teams
The Cemented Hip Replacement Procedure — Step by Step
Understanding what happens during surgery can ease pre-operative anxiety.
Step 1 — Anaesthesia
Cemented hip replacement is typically performed under spinal anaesthesia, general anaesthesia, or a combination. Your anaesthetist will advise the most appropriate option based on your health.
Step 2 — Surgical approach
The surgeon makes an incision — posterolateral or anterior approach — to access the hip joint. The specific approach affects recovery precautions and rehabilitation protocol.
Step 3 — Removing the damaged joint
The worn femoral head is removed, and the acetabulum is prepared to accept the new socket component.
Step 4 — Cement application and implant placement
Bone cement is mixed and applied in a dough-like state to the prepared femoral canal. The prosthetic stem is then inserted and held precisely while the cement hardens — typically within 10–15 minutes. The acetabular cup is similarly cemented or press-fit, depending on the surgical plan.
Step 5 — Wound closure and recovery
The hip is reduced (repositioned), the wound is closed, and recovery begins immediately — with physiotherapy typically starting the same day or the following morning.
Recovery After Cemented Hip Replacement
Recovery from cemented total hip arthroplasty follows a structured, progressive timeline:
Days 1–3: Most patients stand and take first steps with assistance on the day of surgery or the following morning. Pain is managed with anaesthesia and medication. Physiotherapy begins immediately.
Week 1–2: Discharge home typically occurs within 3–5 days. Walking with a frame or crutches, basic exercises to prevent clots and restore movement.
Week 3–6: Transition from frame to crutch to cane, depending on progress. Most patients manage stairs and short outdoor walks by week 4.
Month 2–3: Cane is typically discontinued. Driving resumes (usually 6–8 weeks for most patients). Physiotherapy continues for strength and balance.
Month 3–6: Full functional recovery for most daily activities. Ongoing strengthening exercises support long-term implant performance.
How Long Does a Cemented Hip Replacement Last?
This is one of the most important questions patients ask — and the data is reassuring.
Large national joint registries from Australia, the UK, and Scandinavia consistently show:
- 90–95% implant survival at 10 years
- 80–85% implant survival at 20 years
- Some well-functioning cemented hip replacements have been documented at 30+ years in patients with moderate activity levels
Factors that positively influence longevity include lower body weight, moderate activity levels, good bone quality at the time of surgery, and adherence to long-term follow-up with your orthopaedic surgeon.
Frequently Asked Questions
1. What is the difference between cemented and uncemented hip replacement?
Cemented replacement uses bone cement to fix the implant immediately. Uncemented relies on bone growing into a porous implant surface over 6–12 weeks. Cemented is generally preferred for older patients and those with osteoporosis; uncemented suits younger, active patients with good bone quality.
2. How long does it take for cement to set in a hip replacement?
Bone cement hardens within 10–15 minutes of application, reaching working strength during surgery itself. The implant is stable by the time the wound is closed, which is why cemented replacement allows immediate weight-bearing in most patients.
3. Which is better — cemented or cementless hip replacement?
Neither is universally better — it depends on the patient’s conditions. Cemented replacement works well for older patients and those with osteoporosis, while cementless suits younger, active patients with good bone quality. Many surgeons use a hybrid of both.
4. How long do cemented hip replacements last?
Joint registry data shows 90–95% implant survival at 10 years and 80–85% at 20 years, with some patients still doing well at 30+ years. Longevity depends on activity level, body weight, and regular orthopaedic follow-up.
5. What is the biggest complaint after hip replacement?
The most common complaints are stiffness, swelling, and slower-than-expected strength recovery in the first 3–6 months — significantly reduced with prompt, consistent physiotherapy. Following dislocation precautions early on is the most important adjustment patients need to make.
Conclusion — Is Cemented Hip Replacement Right for You?
Cemented hip replacement has one of the most reliable track records in orthopaedic surgery, backed by decades of data — especially for older patients and those with weaker bone quality.
The right choice between cemented, uncemented, or hybrid fixation depends on your age, bone density, activity level, and anatomy — a decision best made with an experienced orthopaedic surgeon who can assess your specific case.
Dr. Bharat Goswami, a leading orthopaedic surgeon in Greater Noida, brings extensive experience in both cemented and uncemented hip replacement, helping each patient get the approach best suited to their needs. With a patient-first philosophy and advanced implant systems at Fortis Hospital, Greater Noida, Dr. Goswami delivers consistent, lasting outcomes.
