Flexor Hallucis Longus Tendinitis – The Dancer's Tendonitis
Comprehensive guide to flexor hallucis longus tendinitis (dancer's tendonitis), covering causes, symptoms, diagnosis, treatment, and safe return to dance.
By Dr. Robert Hoover, DPM, FACFAS
Flexor Hallucis Longus Tendinitis – The Dancer's Tendonitis
Dancers know the pain well: a deep ache along the inside of the ankle and bottom of the foot that seems to appear with each plié and pointed toe. Flexor hallucis longus (FHL) tendinitis is a common injury affecting dancers and other athletes who demand extreme foot flexibility and strength. Understanding this condition is crucial for returning safely to dance.
What Is Flexor Hallucis Longus Tendinitis?
Flexor hallucis longus tendinitis is inflammation of the FHL tendon, which runs along the inside of the ankle and beneath the foot arch, controlling the big toe's downward movement and providing push-off power during walking and dancing. This tendon is critical for dancers' ability to point their feet, relevé onto their toes, and perform demanding movements. When overused or strained, it becomes inflamed and painful.
The condition is particularly common in ballet dancers but also affects contemporary dancers, gymnasts, and other athletes requiring extreme foot mobility.
Understanding the Anatomy
The flexor hallucis longus tendon is one of the deepest tendons in the foot, making it vulnerable to overuse injuries while remaining relatively protected from direct trauma. Its location along the medial (inside) part of the foot means pain is often felt on the inside of the ankle and arch—a distinctive pattern that helps identify this condition.
Causes and Risk Factors
FHL tendinitis develops from multiple contributing factors:
- Overuse: Excessive dancing, jumping, or point work
- Inadequate rest: Insufficient recovery between intense rehearsals
- Tight gastrocnemius-soleus complex: Calf tightness creates compensatory stress
- Poor turnout mechanics: Improper hip and foot alignment
- Weak intrinsic foot muscles: Inadequate arch support
- Repetitive push-off movements: Constant relevé and grande battements
- Growth-related factors: Rapid changes in flexibility and strength
- Training errors: Too much activity, too soon
Recognizing the Symptoms
FHL tendinitis typically presents with:
- Deep, aching pain along the inside of the ankle
- Pain along the bottom of the foot, especially the arch
- Pain that worsens with relevé (standing on toes)
- Difficulty with pointed toe movements
- Swelling along the medial ankle
- Pain during push-off movements
- Morning stiffness in the foot and ankle
- Clicking or popping sensation in the ankle
- Pain during balancing exercises
- Symptoms that worsen with continued dance training
Diagnosis: Identifying the Problem
Accurate diagnosis is essential for appropriate treatment. Your podiatrist will:
- Take a detailed history of your dance activities and symptom onset
- Perform a comprehensive physical examination
- Assess your foot structure and flexibility
- Evaluate your dance mechanics and turnout
- Perform specific FHL strength and flexibility tests
- Utilize ultrasound or MRI imaging for confirmation
- Rule out associated conditions like ankle impingement
Imaging helps confirm inflammation and extent of involvement.
Conservative Treatment Approaches
Rest and Activity Modification
- Temporarily reduce dance intensity and volume
- Avoid activities that aggravate symptoms
- Modify specific movements (reduce relevé time, limit grands battements)
- Maintain cross-training activities like swimming or cycling
- Allow adequate recovery between training sessions
- Gradually return to full dance participation
Physical Therapy and Stretching
- Calf stretches: Address tightness in the gastrocnemius-soleus
- Foot and ankle mobility: Improve ankle joint flexibility
- Intrinsic foot strengthening: Build arch muscles for support
- FHL strengthening: Gentle toe flexion exercises
- Hip and core work: Improve overall stability and alignment
- Proprioceptive training: Balance and ankle stability exercises
Footwear and Orthotic Support
- Proper ballet shoes: Correctly fitted pointe and soft shoes
- Custom orthotics: Support arch and manage foot alignment
- Outside-the-box solutions: Specialized ankle braces for rehearsals
- Strapping: Kinesiology tape for ankle stability
- Arch supports: Reduce compensatory stress on the tendon
Anti-Inflammatory Management
- Ice application after rehearsals (15-20 minutes)
- Over-the-counter anti-inflammatory medications
- Elevation to reduce swelling
- Compression wraps for ankle support
- Rest days built into training schedule
Advanced Treatment Options
When conservative measures aren't sufficient:
Ultrasound Therapy
Therapeutic ultrasound may promote healing and reduce inflammation in the FHL tendon.
Corticosteroid Injections
In select cases, careful corticosteroid injections around (not into) the FHL tendon can reduce inflammation, particularly when combined with physical therapy and activity modification.
Platelet-Rich Plasma (PRP)
PRP therapy may stimulate healing in the FHL tendon, offering an alternative for dancers seeking to maximize recovery without prolonged activity restriction.
Dry Needling
This technique may help release tension in the tendon and promote healing.
Return to Dance Protocol
Getting back to dance safely requires careful progression:
- Week 1-2: Non-dance cross-training only
- Week 2-3: Light ballet technique, avoiding relevé
- Week 3-4: Progressive relevé work, gentle choreography
- Week 4-5: Full-class participation with modifications
- Week 5+: Gradual increase in intensity and complexity
Follow your podiatrist's guidance for safe return to full dance participation.
Special Considerations for Dancers
Dancers facing FHL tendinitis must balance recovery with maintaining fitness and technique. Consider:
- Working with your dance instructor about modifications
- Maintaining upper body and hip conditioning during recovery
- Continuing flexibility work to prevent loss of turnout
- Addressing any technique issues that may have contributed
- Gradually progressing choreography rather than full-intensity dancing
Prevention Strategies
To prevent FHL tendinitis:
- Proper warm-up: Always warm up before intense training
- Gradual progression: Don't rush return from breaks
- Consistent stretching: Maintain calf and ankle flexibility
- Strength training: Build intrinsic foot muscles
- Cross-training: Vary activities and strengthen different muscle groups
- Proper footwear: Invest in well-fitting dance shoes
- Adequate rest: Allow recovery between intense sessions
When to Seek Professional Care
Consult a podiatrist if you experience:
- Persistent pain with dance movements
- Pain affecting your technique or performance
- Symptoms lasting more than a few days
- Swelling or visible ankle changes
- Difficulty returning to full dance participation
- Uncertainty about your condition or recovery plan
Dr. Robert Hoover at Central Florida Foot & Ankle Institute understands the demands of dance and can provide specialized care for FHL tendinitis.
Your Return to Dance
FHL tendinitis is treatable, and dancers recover successfully with appropriate conservative management. The key is early diagnosis, proper treatment adherence, and patience with gradual return to dance. With expert care and dedication to recovery, you'll be back on stage doing what you love.
Ready to get back to dancing pain-free? Contact Central Florida Foot & Ankle Institute at (407) 307-0006 or book online at https://floridafai.intakeq.com/booking. Dr. Robert Hoover specializes in treating dancers and will support your safe return to dance.