Prehabilitation - structured exercise-based preparation before surgery - is one of the most evidence-supported but least-used interventions in orthopaedic care.
Meta-analyses of prehab for knee replacement, hip replacement, ACL reconstruction, and spine surgery consistently show that patients who do 4–6 weeks of targeted exercise before surgery recover faster post-op, have lower pain scores in the first month, and return to function sooner.
Despite the evidence, most Johor patients have never heard of prehab.
They go straight from the surgeon's consultation to the surgery date, often 4–6 weeks later, without using that time.
Here's what should happen instead.
What prehab actually involves
Contrary to intuition, prehab isn't light stretching.
It's progressive strength and conditioning targeted at the muscles that will do the work of recovery:
- For knee replacement: quadriceps, glute, and hip flexibility.
- For hip replacement: glute strengthening, core, and balance.
- For ACL reconstruction: quadriceps symmetry, single-leg control, and range restoration.
- For shoulder surgery: rotator cuff and scapular endurance.
- For spine surgery: deep core, hip mobility, general aerobic fitness.
Alongside the exercise, prehab addresses modifiable risk factors: smoking cessation (critical), weight management, blood sugar control in diabetics, and iron stores in anaemic patients.
What the evidence shows
- Total knee replacement: 4–6 weeks of prehab produces better post-op range at 3 months, reduces length of hospital stay by 1–2 days, and reduces need for post-op inpatient rehab.
- Total hip replacement: similar improvements plus reduced fall risk in older patients.
- ACL reconstruction: quadriceps strength at the time of surgery is one of the strongest predictors of outcome at 1 year. Even 4 weeks of pre-op quad strengthening meaningfully improves the baseline.
- Spine surgery: prehab patients return to driving, work, and daily activities faster.
- Major abdominal surgery: (prostate, colorectal) - prehab reduces length of stay and pulmonary complications.
The typical Johor prehab programme
6 weeks, three sessions per week split between supervised and home-based:
Weeks 1–2: assessment and baseline
- Full strength, range, and functional baseline - quadriceps strength (where relevant), 30-second sit-to-stand, balance tests, pain profile.
- Individualised exercise prescription based on surgery type.
- Initial progression - progressive strength exercises, aerobic conditioning.
Weeks 3–4: main loading phase
- Progressive resistance - weight and volume increase.
- Sport-specific or function-specific drills for younger patients.
- Breathing and aerobic endurance work - important pre-op for anaesthesia tolerance.
Weeks 5–6: peak and hand-off
- Final strength push.
- Pre-op education - what to expect post-op, how to use assistive devices, home set-up.
- Patient trained on their own day-1 post-op exercises so they can do them without instruction in recovery.
Who benefits most
Prehab produces the biggest relative benefit in:
- Older patients (over 65) - starting from a lower baseline, they have more to gain.
- Deconditioned patients - anyone who's been sedentary for months before surgery.
- Diabetic or obese patients - the metabolic work pays dividends in wound healing and post-op complications.
- Fear-avoidant patients - prehab builds confidence and reduces catastrophising.
Younger, fitter patients still benefit, but the relative gap is smaller.
When to start
Earlier is better.
Ideally, patients start prehab from the moment surgery is scheduled - often that's 6–8 weeks in advance for elective cases.
In urgent surgery (within 2 weeks), even brief prehab - 2 weeks of focused work - has measurable benefit.
What prehab doesn't mean
Prehab doesn't mean avoiding surgery or pushing beyond pain.
Exercises are modified around pain and the surgical target - aggressive quadriceps work on a painful knee makes the knee worse, not better.
The skill of prehab is matching load to what the joint can tolerate.
Typical Johor costs
- Prehab programme: 6–8 physio-supervised sessions at RM120-250 plus self-directed home programme.
- Saved on post-op: often 2–4 fewer post-op sessions needed; reduced risk of complications translating to shorter hospital stay.
Net cost is often neutral or negative - prehab pays for itself in reduced post-op costs.
How PhysioJohor runs prehab
WhatsApp us with: surgery planned (type and date), current symptoms and function, any other medical conditions, and surgeon details.
We coordinate with the surgeon's office where needed, and can often set up a structured 6-week programme that hands off smoothly to the post-op rehab plan.
Related guide: Post-surgery rehab in Johor