What should be added to the physical therapy order for Achilles tendinopathy in a patient who cannot tolerate therapy without a controlled ankle motion (CAM) boot?

Add Heel Lifts and Modify Physical Therapy Protocol

For a patient with Achilles tendinopathy who cannot tolerate physical therapy without a CAM boot, you should add heel lift orthotics to the physical therapy order and modify the exercise protocol to focus on pain-free eccentric strengthening with gradual progression. 1

Immediate Modifications to the PT Order

1. Heel Lift Orthotics

The most evidence-based addition when patients cannot tolerate therapy without a CAM boot is heel lift orthotics to unload the Achilles tendon. 1 This mechanical intervention:

• Reduces tensile stress on the tendon during weight-bearing activities
• Provides pain relief that allows participation in therapeutic exercises
• Can be used in regular footwear as the patient transitions away from the boot

2. Modified Exercise Protocol

Specify pain-guided eccentric strengthening rather than aggressive loading. 1 The PT order should include:

• Start eccentric exercises only when pain allows - these are the most effective intervention for Achilles tendinopathy but must be tolerable 1
• Begin with reduced load/range and progress based on pain response
• Avoid complete immobilization - this causes muscle atrophy and deconditioning 1

3. Stretching and Manual Therapy

Add specific instructions for:

• Gastrocnemius-soleus stretching - widely accepted as helpful for Achilles tendinopathy 1
• Deep friction massage of the gastrocnemius-soleus complex 1

Addressing Anatomic Factors

Order assessment and correction of biomechanical abnormalities:

• Evaluate for forefoot/heel varus, excessive pes planus, or foot overpronation 1
• If present, add shoe orthotics to correct overpronation or pes planus 1
• These anatomic misalignments are commonly associated with Achilles tendinopathy and must be addressed

Pain Management Adjuncts

While the patient transitions from the boot:

• NSAIDs for short-term pain relief - effective but no long-term benefit 1
• Cryotherapy - 10-minute applications of ice through a wet towel for acute pain relief 1
• Avoid corticosteroid injections - these may inhibit healing and reduce tensile strength, predisposing to rupture 1

Critical Pitfall to Avoid

Do not allow complete immobilization or prolonged boot dependence. The evidence shows that while CAM boots restrict ankle motion effectively (reducing ROM by 85% in sagittal plane) 2, 3, they create compensatory mechanisms at the hip and knee that can lead to secondary site pain 3, 4. Prolonged use without progressive loading prevents the tensile loading needed to stimulate collagen production and proper fiber alignment 1.

Progressive Weaning Strategy

The PT order should specify:

1. Relative rest - reduce but don't eliminate activity 1
2. Gradual increase in weight-bearing activities as tolerated with heel lifts
3. Progressive eccentric loading as the primary therapeutic intervention
4. Transition from boot to supportive footwear with orthotics over 2-4 weeks

Expected Timeline

Most patients with overuse tendinopathies recover within 3-6 months with conservative treatment 1. If no improvement occurs after this period with appropriate modifications, consider referral for advanced imaging or specialist evaluation 1.

The key is providing adequate offloading (heel lifts) while maintaining controlled mechanical stimulus to the tendon through eccentric exercises, avoiding the extremes of both complete immobilization and excessive loading that perpetuates symptoms.