.jpeg)
INTRODUCTION
Two of the most common questions Dr. Amit Meena receives from patients considering knee replacement are: “Can I have surgery if I am overweight?” and “Is it safe if I have diabetes?” The answer to both is yeswith the right preparation.
KNEE REPLACEMENT AND OVERWEIGHT PATIENTS
Being overweight does not automatically disqualify a patient from knee replacement surgery. In fact, obesity is one of the most common causes of advanced knee arthritis, meaning a large proportion of patients who need knee replacement carry excess weight.
What higher body weight means for surgery:
- Surgical risk is modestly increased but manageable with appropriate anaesthetic and surgical planning
- Higher mechanical load on the implant accelerates wear over time
- Pre-operative weight reduction is recommended where possible but is not always a prerequisite
- At KneeCares Jaipur, Dr. Amit Meena has performed knee replacement in patients weighing up to 145 kg
What higher weight means for recovery:
- Physiotherapy is more important, not lessmuscle strengthening reduces load on the implant
- Wound healing may take slightly longer
- Swelling management is an important part of post-operative care
The risk of leaving severe knee arthritis untreated in a high-BMI patientprogressive immobility, further weight gain, cardiovascular deconditioningoften significantly outweighs the surgical risk.
KNEE REPLACEMENT AND DIABETIC PATIENTS
Diabetes affects wound healing and immune response, which creates specific considerations for knee replacement surgery. However, well-controlled diabetes is not a contraindication to surgery.
Pre-operative requirements for diabetic patients:
- HbA1c should ideally be below 8.0 before surgerythis is the internationally accepted threshold
- Blood glucose is monitored closely in the 48 hours before and after surgery
- Diabetes medications are adjusted in the peri-operative period
- Physician or endocrinologist clearance is obtained before the surgical date
During and after surgery:
- Glucose monitoring continues throughout the hospital stay
- Wound care is particularly importantany early signs of infection are addressed immediately
- Antibiotic protocol may be extended
Outcome data: Studies consistently show that diabetic patients who are well-optimised pre-operatively achieve outcomes comparable to non-diabetic patients at one and two year follow-up.
THE RISK OF NOT HAVING SURGERY
It is important to consider the risk of not operating, not only the risk of operating.
In patients with severe knee arthritis who are overweight or diabetic, untreated pain leads to:
- Progressive immobility and muscle wasting
- Further weight gain due to inactivity
- Cardiovascular deconditioning
- Depression and reduced quality of life
- Higher long-term healthcare burden
For many high-risk patients, the risk-benefit analysis strongly favours surgery when it is approached with appropriate planning.
HOW DR. AMIT MEENA APPROACHES HIGH-RISK PATIENTS
At KneeCares Jaipur, each high-risk patient undergoes a comprehensive pre-operative assessment including:
- Full blood panel including HbA1c, clotting profile and kidney function
- Cardiologist clearance where indicated
- Anaesthetist pre-assessment for airway and anaesthetic planning
- Nutritionist referral where significant weight reduction is advisable before surgery
- Physiotherapy pre-habilitation to improve muscle strength before the operation
This multidisciplinary approach is what allows successful surgical outcomes in patients who might otherwise be told they cannot have surgery.
FREQUENTLY ASKED QUESTIONS
Q: Can an overweight person have knee replacement surgery?
A: Yes. Being overweight does not automatically prevent knee replacement surgery. Dr. Amit Meena has performed knee replacement in patients up to 145 kg. Pre-operative assessment and planning address the specific risks associated with higher body weight.
Q: What is the weight limit for knee replacement surgery?
A: There is no absolute weight cutoff. Each patient is assessed individually. At KneeCares Jaipur, surgery has been performed safely in patients up to 145 kg. The decision is based on overall health status, not weight alone.
Q: Can a diabetic patient have knee replacement?
A: Yes. Diabetic patients can have knee replacement safely when blood sugar is well controlled before surgery. HbA1c below 8.0 is the standard pre-operative target. Physician clearance and close glucose monitoring are part of the surgical protocol.
Q: Does diabetes increase the risk of knee replacement complications?
A: Poorly controlled diabetes increases the risk of wound infection and delayed healing. Well-controlled diabetes managed with appropriate pre-operative protocol does not significantly increase complication rates compared to non-diabetic patients.
Q: Should I lose weight before knee replacement surgery?
A: Weight reduction before surgery is recommended where possible as it reduces mechanical load on the implant and may improve recovery. However, it is not always a prerequisite. Dr. Amit Meena will advise on an individual basis during consultation.
ABOUT THE AUTHOR
Dr. Amit Meena
Fellowship-trained Orthopedic Surgeon | ISAKOS Global Traveling Fellow (2023–2025)
Fellowships: Rizzoli Orthopaedic Institute Bologna Italy | FIFA Medical Centre of Excellence Innsbruck Austria | Western University & Queen’s University Ontario Canada
Memberships: ISAKOS | ESSKA | APKASS | ACL Study Group | Magellan Society
Publications: 100+ peer-reviewed papers in JBJS, AJSM, CORR, KSSTA, JISAKOS
KneeCaresThe Superspeciality Knee Clinic, Jaipur | +91 8000301840 | kneecares.com
