1. Introduction
Post-orthopaedic surgery rehabilitation is a step-by-step process which requires patience, perseverance and active involvement of the patient as well as rehabilitation specialists. Total Knee Arthroplasty (TKA) and Total Hip Arthroplasty (THA) can be considered the most successful surgeries performed for decreasing pain and increasing mobility in people suffering from arthritis, bone fracture or degenerative joint disorder. Though the surgery fixes the problem, its success is primarily determined by a rehabilitation programme.
The main objectives of rehabilitation after the surgery are decreasing pain and swelling, recovery of joint mobility, improvement of muscle strength, restoration of mobility and safe return to ADLs. Rehabilitation specialists are very important as they provide patients with individual exercise programmes, track their progress, educate them about necessary precautions and prevent complications like joint stiffness, muscle atrophy, deep vein thrombosis and falls.The rate of recovery depends on a number of factors such as age, general health, surgical approach, pre-surgical functioning, and rehabilitation. The vast majority of patients recover significantly after three months, but full recovery takes six to twelve months.2. Goals of Post-Surgical RehabilitationKey aspects of an efficient rehabilitation program include:
- Limiting pain and swelling after surgery.
- Safeguarding the surgical site.
- Rehabilitating the full range of joint movement.
- Muscle strengthening and stamina improvement.
- Avoiding complications like DVT, pressure sores, and pulmonary complications.
- Restoring the ability to walk independently.
- Balancing and coordination improvement.
- Safe return to work and recreational activities.
- Quality of life and joint functioning improvement.
Early mobilization is known to shorten hospital stays, improve circulation, and hasten functional rehabilitation.
3. Knee Replacement Rehabilitation (Total Knee Arthroplasty)
Total knee replacement surgery involves the surgical implantation of artificial components for the worn-out joint surfaces. The rehabilitation process starts on the day of surgery as soon as it is medically indicated.
Phase I: Early Recovery (Days 0-7)
Objectives
- Pain and swelling reduction.
- Restoration of full extension of the knee.
- Achieving of around 70-90° of knee flexion.
- Starting of walking.
- Blood clot prevention.
Recommended Exercises
Ankle Pumps
Perform frequent ankle pumps while awake for an hour; that will increase venous return and reduce the possibility of DVT formation.
Quadriceps Sets
Position yourself in a supine position with straightened knees and contract your thigh muscles by pressing the knee down to the bed; hold it for 5-10 seconds and perform 10-15 repetitions.
Gluteal Sets
Squeeze both buttocks together for 5 seconds and then relax; make 10-15 repetitions.
Heel Slides
Try to slide the heels towards the buttocks when you feel stretch sensation, then straighten the legs slowly.
Passive Knee Extension
Supporting only the ankle, place a towel roll under the foot, and allow gravity to extend the knee.
Apply ice packs for 15-20 min each few hours to reduce swelling.
Phase II: Early Recovery (Weeks 1–6)
Goals include:
- To attain full extension of the knee joint.
- Increase knee flexion to 110-120°.
- Improve quadriceps muscle strength.
- Walking without assistance.
- Performing stair climbing.
Exercises include:
- Direct Leg Raises
- Small Squats (0-45°)
- Sitting Knee Flexion
- Hamstring Curls Standing
- Toe Raises
- Sit to Stand Drills
- Weight Shifting Activities
Patients slowly progress from walkers to canes depending on their muscle strength and balance.
Phase III: Advance Stage (Weeks 6-12)
| Exercise | How to Perform | Repetitions | Precautions |
|---|---|---|---|
| Ankle Pumps | Move feet up and down | 20 every hour | Slow movement |
| Quadriceps Sets | Tighten thigh muscles | 10 × 3 | Keep knee straight |
| Heel Slides | Slide heel toward body | 10 × 3 | Avoid excessive pain |
| Straight Leg Raises | Lift straight leg | 10 × 3 | No knee bending |
| Hip Abduction | Lift leg sideways | 10 × 3 | Avoid trunk lean |
| Hip Extension | Move leg backward | 10 × 3 | Maintain posture |
| Heel Raises | Rise onto toes | 10 × 3 | Hold support |
| Mini Squats | Bend knees slightly | 10 × 2 | Avoid deep squat |
| Sit-to-Stand | Stand without using hands | 10 repetitions | Use stable chair |
| Single-Leg Balance | Stand on one leg | Hold 10–30 sec | Use support |