Total Knee Replacement: Managing ROM and Edema

Restoring mobility and reducing swelling are two of the most important goals after a total knee replacement (TKR). Structured rehabilitation ensures safe recovery, optimises outcomes, and prevents long-term complications.

Early Post-Operative Phase (Week 0–2)

• Edema Management: Elevate the leg above heart level, use cryotherapy, and apply compression wraps as recommended.
• Range of Motion (ROM): Begin gentle passive and active-assisted knee flexion and extension exercises.
• Ambulation: Walk with assistive devices to encourage circulation and reduce swelling.
• Quad Activation: Perform isometric quadriceps sets to maintain muscle engagement and support joint stability.

Intermediate Phase (Week 2–6)

• ROM Targets: Aim for 90° flexion by week 2 and 110° flexion by week 6.
• Strengthening: Introduce closed-chain exercises like mini squats and step-ups as tolerated.
• Edema Control: Continue icing after exercises, with compression stockings if prescribed.
• Gait Training: Gradually progress to walking without aids while focusing on symmetry and avoiding compensations.

Advanced Rehabilitation (Week 6–12)

• ROM Progression: Strive for 120° flexion or greater to enable functional activities like stair climbing.
• Strength Training: Add resistance bands, leg presses, and balance training to enhance muscle endurance.
• Functional Drills: Practice transfers, stair navigation, and activities of daily living.
• Edema Monitoring: Persistent swelling beyond this stage may require medical review.

Long-Term Management (3–6 Months)

• ROM Maintenance: Daily stretching and functional exercises help maintain gains.
• Activity Return: Most patients resume light recreational activities at 3 months, with gradual progression to higher-demand tasks.
• Scar Tissue Control: Ongoing stretching and mobilisation reduce risk of adhesions limiting movement.
• Lifestyle Modification: Weight management and low-impact activities protect the prosthesis and surrounding joints.

Conclusion

Total knee replacement recovery requires a careful balance between swelling management and progressive ROM exercises. With structured rehabilitation, patients regain mobility, reduce pain, and restore independence.

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