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Achilles Tendon Rupture: Causes and Guide to Physiotherapy Rehabilitation Process

The Achilles tendon is the thickest tendon in the human body, connecting the calf muscles (gastrocnemius and soleus) to the heel bone (calcaneus). It plays a crucial role in plantar flexion (push-off motion), essential for walking, running, and jumping. Ruptures commonly occur in active individuals aged 30–50, often due to sudden bursts of force or overloading. With the rise in sports participation, the incidence of Achilles tendon ruptures has increased. Physiotherapy is critical in managing Achilles tendon ruptures, whether treated surgically or non-surgically, and requires a structured rehabilitation plan for optimal recovery.

Causes of Achilles Tendon Rupture

Traumatic Force

Sudden acceleration or direction changes (e.g., basketball, tennis) that overload the tendon.

Degenerative Changes

Chronic overuse, tendinitis, or poor blood supply (especially in the mid-tendon region) weakening the tendon structure.

Risk Factors

Male gender, aging, obesity. Long-term steroid use. Poor training habits (e.g., inadequate warm-up).

Symptoms of Achilles Tendon Rupture

  • Acute Phase:

    • Audible “pop” sound at the time of rupture, followed by sharp pain.

    • Inability to push off the foot (loss of plantar flexion).

    • Swelling, bruising, and a palpable gap in the tendon (positive Thompson test).

    Chronic Phase:

    • Abnormal gait (e.g., limping).

    • Calf muscle atrophy.

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Non-Surgical Treatment

Indications: Partial tears, low-activity patients, or high surgical risks.
Principle: Immobilization to promote natural healing.

  1. Immobilization Phase (0–6 weeks)

    • Ankle fixed in 20–30° plantar flexion (to reduce tendon tension).

    • Use a walking boot or cast with crutches (non-weight-bearing).

  2. Early Mobilization (6–12 weeks)

    • Gradual adjustment to neutral ankle position.

    • Gentle joint mobility and strength exercises (e.g., resistance band plantar flexion).

    • Physiotherapy: Ultrasound, electrotherapy, soft tissue massage.

Surgical Treatment

Indications: Complete ruptures, active individuals.
Options:

  • Open Repair: Direct suturing, possibly with tendon grafts.

  • Minimally Invasive Surgery: Smaller incisions, lower infection risk.
    Post-Op Immobilization: Short-term cast (2 weeks), then transition to a removable boot.

Post-Operation Rehabilitation Phases

Phase I: Acute Post-Op (0–3 Weeks)

Goals:

  • Protect the repair.

  • Maintain hip/knee/core strength.

  • Control swelling/pain.
    Weight-Bearing: Non-weight-bearing (NWB) with crutches and boot/cast.
    Rehab:

  • Passive hamstring stretches (in boot).

  • Quad sets, straight leg raises, core/hip strengthening.

  • Ice and elevation for swelling.

Phase II: Intermediate (4–6 Weeks)

Goals:

  • Restore ankle mobility (avoid dorsiflexion beyond 0°).

  • Begin partial weight-bearing.
    Weight-Bearing:

  • Week 4: 25% body weight (3 heel wedges in boot).

  • Week 5: 50% weight (2 wedges).

  • Week 6: 75% weight (1 wedge).
    Rehab:

  • Ankle pumps/circles (no dorsiflexion past neutral).

  • Seated heel slides, scar massage (once healed).

  • Seated heel raises, foot intrinsic muscle exercises.

Phase III: Late Post-Op (7–8 Weeks)

Goals:

  • Full ankle range of motion.

  • Normalize gait (no wedges/crutches).
    Weight-Bearing: Full weight-bearing (FWB) by Week 8.
    Rehab:

  • Standing dorsiflexion stretches.

  • Resistance band ankle exercises.

  • Stationary biking (in boot).

Phase IV: Transitional (9–10 Weeks)

Goals:

  • Normal gait in sneakers (1 cm heel lift).

  • Improve calf strength/balance.
    Rehab:

  • Standing heel raises (progress to single-leg).

  • Balance training (e.g., wobble board).

Phase V: Strengthening (11–12 Weeks)

Goals:

  • Remove heel lift.

  • Prepare for advanced training.
    Rehab:

  • Eccentric calf raises.

  • Lunges, step-ups.

Phase VI: Advanced (3–6 Months)

Goals:

  • Restore power/agility.

  • Prepare for sports.
    Rehab:

  • Plyometrics (e.g., jump training).

  • Walk/jog intervals.

Phase VII: Return to Sport (6+ Months)

Goals:

  • Sport-specific drills.

  • Ensure ≥90% limb symmetry.
    Assessments:

  • Single-leg hop, Y-balance test.

  • Psychological readiness (PRRS).

Post-Surgical Complications & Treatments

ComplicationCausesTreatment
1. Re-ruptureEarly weight-bearing, poor surgical repair– PRP injections, ultrasound monitoring.
– Revision surgery if needed.
2. Ankle StiffnessProlonged immobilization– Early passive motion (2–4 weeks).
– Joint mobilizations, heat therapy.
3. Calf AtrophyMuscle disuse– NMES, progressive strength training.
4. Chronic TendinopathyScar tissue, overloading– Deep friction massage, shockwave therapy (ESWT).
5. InfectionPoor wound care– Antibiotics, laser therapy (LLLT).
6. Gait AbnormalitiesCompensatory movements– Biofeedback, balance/proprioception drills.

MANA Core Values

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