Knee strengthening exercises can support the muscles around the joint before surgery and during recovery. For someone preparing for knee replacement, including robotic knee replacement, suitable exercise may help maintain muscle conditioning before the procedure and provide a foundation for rehabilitation afterwards.
The aim is controlled movement, muscle activation and flexibility. The choice of knee strengthening exercises depends on the knee condition, symptoms, strength and planned procedure, so guidance from an orthopaedic surgeon or physiotherapist is important.
Why Are Knee Strengthening Exercises Important?
The quadriceps, hamstrings, calf and hip muscles all contribute to knee control. When pain or stiffness reduces activity, these muscles can become weaker.
Regular knee strengthening exercises may help maintain muscle activity before surgery. After surgery, a gradual programme can help rebuild strength and improve control as healing progresses.
A suitable exercise matters more than exercise intensity. A movement that works well for one patient may not suit another.
Knee Strengthening Exercises Before Surgery
Before surgery, the focus is usually on maintaining muscle activity and comfortable movement without overloading the affected joint.
1. Quadriceps Squeeze
Lie down or sit with the leg straight. Tighten the muscle above the knee and gently press the back of the knee towards the surface. Hold briefly and relax.
This simple movement activates the thigh without repeated knee bending.
2. Straight-Leg Raise
Lie on your back with one knee bent and the other leg straight. Tighten the thigh of the straight leg and slowly lift it a short distance. Lower it with control.
Avoid swinging the leg. Stop if the movement causes significant discomfort.
3. Seated Knee Slide
Sit on a stable chair with the foot resting on the floor. Slowly move the foot backwards to bend the knee. Go only as far as comfortable, pause and return.
It can help maintain comfortable knee movement before surgery.
4. Ankle Pumps
Move the feet up and down while sitting or lying down. Ankle pumps require little knee movement and can be useful when activity is restricted.
Knee Strengthening Exercises After Surgery
After knee replacement, the focus shifts to restoring movement and rebuilding strength. More demanding work is added as recovery advances.
Robotic knee replacement also requires rehabilitation; robotic assistance does not replace postoperative exercise.
1. Thigh Muscle Activation
Gentle quadriceps contractions may be introduced during early rehabilitation. Tighten the front thigh muscle, hold briefly and relax.
Repetitions should follow the rehabilitation plan.
2. Knee Straightening
A recovering knee may feel stiff when the leg is fully straightened. Under professional guidance, the heel can be supported so the knee gradually extends.
Do not force the movement.
3. Supported Knee Bending
As healing progresses, seated or supported bending may be added. The patient gradually works towards better movement according to the prescribed programme.
4. Standing Exercises
When balance and strength improve, standing movements may be introduced. These can target the thigh, hip and calf muscles.
How Should These Exercises Progress?
Knee strengthening exercises should progress according to recovery. Weakness, stiffness and overall health can affect progress.
Keep these points in mind:
- Follow the physiotherapy programme.
- Perform movements slowly and with control.
- Increase resistance only when advised.
- Give the knee enough recovery time.
- Report unusual or increasing pain or swelling.
Consistency is more useful than rushing progression.
Which Exercises Should Be Avoided?
Jumping, sudden twisting, deep bending and high-impact activity may not be appropriate for a painful or recently operated knee. Even routine knee strengthening exercises may require modification if they cause significant discomfort.
Restrictions can also depend on wound healing, balance and the procedure performed. Patients should avoid creating an independent rehabilitation plan based only on general advice.
Frequently Asked Questions
Can I do knee strengthening exercises before knee replacement?
Yes, if they are appropriate for your condition. A physiotherapist can recommend movements based on your strength, symptoms and surgical plan.
When can exercise begin after knee replacement?
Basic movements may be introduced early under professional supervision. More challenging knee strengthening exercises are added as healing and muscle control improve.
Should knee exercises hurt?
Mild stretching or temporary discomfort can occur. Sharp, severe or increasing pain should be discussed with the healthcare team.
Are exercises needed after robotic knee replacement?
Yes. Robotic technology assists the surgeon during the procedure, but rehabilitation is still necessary to restore movement and strength.
Can pre-surgery exercises continue after surgery?
Some movements may be used at both stages, but their range, repetitions and intensity can change. The postoperative programme should take priority.
Conclusion
Knee strengthening exercises can help maintain muscle conditioning before surgery and support gradual rehabilitation afterwards. The most suitable programme depends on the individual rather than a standard routine.
For patients considering knee replacement or robotic knee replacement, the Chennai Ortho team can assess the knee and guide treatment and rehabilitation.
