The work you do before surgery directly affects how well you recover after it. Two of the most impactful things a patient can do to improve their joint replacement outcome are optimizing body weight and strengthening the muscles around the joint (prehabilitation).
Dr. Leo Zalikha discusses both of these factors openly with patients. They are not mentioned to judge or shame. They are mentioned because the evidence is clear: patients who go into surgery in better condition come out of surgery faster, with fewer complications, and with better long-term results.
The knee bears three to five times your body weight with each step. The hip bears two to three times body weight during walking and up to five times during stair climbing. This means that even a modest amount of excess weight significantly increases the forces acting on a joint replacement over its lifetime. Losing 10 pounds takes 30 to 50 pounds of force off the knee with every step. Over millions of steps per year, that adds up.
Higher body weight is associated with:
Research demonstrates that patients who lose weight before joint replacement have lower complication rates, shorter hospital stays, less post-operative pain, and better functional outcomes compared to patients who undergo surgery at higher BMIs. This does not mean you must reach an ideal weight before surgery. Even modest weight loss (5 to 10 percent of body weight) produces measurable improvement in surgical risk and outcomes.
Dr. Zalikha does not set arbitrary BMI cutoffs that prevent patients from accessing surgery. He recognizes that arthritis pain itself makes weight loss difficult, creating a frustrating cycle: the joint hurts too much to exercise, and the excess weight makes the joint hurt more.
His approach is practical and individualized:
Dr. Zalikha discusses weight as a risk factor, just as he discusses diabetes, smoking, or any other modifiable factor. The goal is risk reduction, not judgment
Significant weight loss may not be achievable before surgery, but even small improvements matter. A 10-pound weight loss is achievable for most patients and makes a measurable difference
Referral to nutritionists, weight management programs, and medical weight loss options when appropriate
For patients who need time to lose weight before surgery, Dr. Zalikha develops a plan that manages symptoms (with injections, therapy, and medications) while weight optimization is in progress
Patients who are stronger going into surgery:
The exercises learned during prehab are the same ones performed during post-operative rehabilitation. Patients who already know the movements and have built a foundation of strength have a significant head start.
Ideally, prehab begins four to six weeks before surgery, though even two weeks of focused exercise provides benefit. Dr. Zalikha's team can provide a prehab exercise program at the time surgery is scheduled, or can refer you to a physical therapist for supervised sessions.
Beyond weight and strength, several other factors can be optimized before surgery:
These factors are addressed in the pre-operative checklist. When surgery is the next step, learn what to expect from knee replacement.
To discuss preparing for your joint replacement, Schedule a consultation with Dr. Zalikha or call (562) 362-5024.
