Freiberg's Disease

Lower Limb

Overview

Freiberg's disease is an osteochondrosis affecting the metatarsal head, most commonly the second metatarsal, characterized by avascular necrosis and fragmentation of the epiphysis. It typically presents in adolescents and young adults with insidious onset of forefoot pain and swelling. The condition results from disrupted blood supply to the metatarsal epiphysis, leading to bone necrosis, collapse, and subsequent degenerative changes.

Pathophysiology

Freiberg's disease involves avascular necrosis (osteochondrosis) of the metatarsal head epiphysis, most frequently affecting the second metatarsal. The exact etiology remains unclear but proposed mechanisms include trauma (stress fracture or acute injury), repetitive microtrauma, and vascular compromise. The condition progresses through stages: initial necrosis, fragmentation and collapse of the epiphysis, and eventual healing with potential residual deformity. Repeated loading on the affected metatarsal head during the healing phase can perpetuate symptoms and accelerate degenerative joint disease. Biomechanical factors such as hypermobility of the first ray, metatarsus primus varus, and forefoot varus may contribute to increased plantar pressure on the second metatarsal head, facilitating onset.

Patient Education

Freiberg's disease is a self-limiting condition in most cases, but early activity modification, appropriate footwear, and weight management can significantly reduce symptom duration and prevent long-term complications such as arthritis.

Typical Presentation

Site

Forefoot, most commonly over the second metatarsal head; pain is typically plantar and dorsal to the affected metatarsal head

Quality

Dull, aching pain with occasional sharp pain on weight-bearing; described as throbbing or pressure-like

Intensity

Mild to moderate pain (3-6/10) that increases with activity; may be worse after prolonged standing or high-impact activities

Aggravating

Weight-bearing activities, running, jumping, prolonged standing, walking on hard surfaces, tight or ill-fitting shoes, pressure directly over the metatarsal head

Relieving

Rest, elevation, ice application, reduced weight-bearing, soft shoe inserts or metatarsal pads, anti-inflammatory medication

Associated

Swelling over the metatarsal head, limp or antalgic gait, limited dorsiflexion of the affected metatarsal joint, tender metatarsal head on palpation, possible callus formation, stiffness after periods of rest

Orthopaedic Tests

Metatarsophalangeal (MTP) Joint Range of Motion Assessment

Procedure

With the patient supine or seated, passively flex and extend the second MTP joint (most commonly affected) and compare to the contralateral foot. Measure dorsiflexion and plantarflexion using a goniometer.

Positive Finding

Reduced dorsiflexion (typically <40°) and/or restricted plantarflexion compared to the unaffected side; pain or stiffness at end-range

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Reduced MTP joint mobility is characteristic of Freiberg's disease and correlates with cartilage damage and osteonecrosis progression. Loss of dorsiflexion is most clinically relevant as it impairs propulsion during gait.

Dorsiflexion Resistance Test (MTP Plantarflexion Strength)

Procedure

Patient seated with foot relaxed. Examiner stabilises the metatarsal head and applies resistance to plantarflexion of the proximal phalanx. Alternatively, assess resistance to dorsiflexion with the MTP joint loaded.

Positive Finding

Pain with resistance; weakness or guarding on the affected second MTP joint; positive 'push-off' pain

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Reproduces pain during plantarflexion (push-off phase) which is typical of Freiberg's disease. Pain with resisted plantarflexion suggests underlying osteochondral lesion or MTP joint synovitis.

Passive MTP Joint Compression and Distraction Test

Procedure

Patient supine or seated. Examiner grasps the proximal phalanx and applies axial compression through the MTP joint (simulating weight-bearing), then releases to apply gentle distraction. Observe for pain provocation.

Positive Finding

Sharp pain with compression on the affected MTP joint; relief or reduction of pain with distraction

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Compression pain suggests intra-articular pathology (osteochondral defect, cartilage damage, or joint inflammation). Distraction relief is consistent with mechanical joint involvement rather than soft tissue origin.

Turf Toe Provocation Test (Dorsiflexion Stress)

Procedure

Patient weight-bearing or supine. Passively dorsiflex the second MTP joint to end-range while applying mild axial load or resistance through the metatarsal head.

Positive Finding

Reproduction of pain at the second MTP joint; clicking or catching sensation; mechanical restriction

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Dorsiflexion stress replicates the load pattern during push-off and midstance. Pain with this maneuver is consistent with osteochondral lesion or secondary osteoarthritis in Freiberg's disease.

Single-Leg Stance and Gait Analysis (Functional Assessment)

Procedure

Observe patient walking, paying attention to cadence, push-off mechanics, and weight distribution. Assess ability to perform single-leg stance on the affected foot; note guarding or antalgic gait pattern.

Positive Finding

Antalgic gait with reduced stance phase on affected foot; shortened step length; toe-walking preference; difficulty with single-leg stance; reduced dorsiflexion during swing phase

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Functional limitations during gait reflect pain-driven avoidance of MTP joint loading. Antalgic patterns are characteristic of Freiberg's disease and indicate symptomatic joint involvement affecting propulsion mechanics.

Palpation of Second Metatarsal Head and MTP Joint Line

Procedure

Patient supine or seated with foot relaxed. Palpate the dorsal aspect of the second metatarsal head and the MTP joint line. Apply gentle pressure and assess for localised tenderness, swelling, or warmth.

Positive Finding

Localised tenderness over the second metatarsal head (dorsal surface); palpable swelling; joint line tenderness; point tenderness directly over the osteochondral lesion

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Localised tenderness over the second MTP joint is highly suggestive of Freiberg's disease and aids in differentiating from other forefoot conditions. Dorsal metatarsal head tenderness reflects the typical location of the avascular necrosis.

⚠ Red Flags

  • •Severe acute pain with trauma or sudden onset suggesting acute fracture
  • •Signs of compartment syndrome (severe swelling, pain out of proportion, neurovascular compromise)
  • •Fever, systemic illness, or signs of infection in affected area
  • •History of malignancy or immunosuppression with unexplained bone pain
  • •Bilateral metatarsal involvement without clear biomechanical explanation
  • •Progressive neurological symptoms in the foot

⚡ Yellow Flags

  • •High pain catastrophization or fear-avoidance behaviors limiting activity excessively
  • •Prolonged symptoms without appropriate medical investigation or imaging
  • •Social or sport-related pressure to return to activity too quickly
  • •Poor adherence to activity modification despite pain
  • •Disproportionate emotional response to diagnosis
  • •Multiple previous injuries with current overprotection

Osteopathic Techniques

Region

Midfoot and forefoot

Technique

Articulation

Rationale

Gentle articulation of the second metatarsophalangeal joint and surrounding midfoot joints promotes synovial fluid circulation, maintains joint mobility, and reduces stiffness without excessive load on the healing metatarsal head

Region

Plantar aspect of foot

Technique

Soft Tissue

Rationale

Soft tissue mobilization of the plantar fascia, intrinsic foot muscles, and flexor tendons reduces muscle tension, improves circulation, and addresses compensatory muscle tightness from antalgic gait patterns

Region

Ankle joint and lower leg

Technique

MET

Rationale

Muscle energy techniques addressing gastrocnemius-soleus tightness and peroneal muscles improve ankle dorsiflexion mobility and reduce excessive compensatory pronation or supination, optimizing forefoot biomechanics

Region

First ray (first metatarsal and cuneiforms)

Technique

Functional

Rationale

Functional mobilization of the first ray addresses hypermobility or restriction that may increase relative load on the second metatarsal head, restoring normal metatarsal load distribution

Region

Foot, ankle, and lower leg

Technique

Lymphatic

Rationale

Gentle lymphatic drainage techniques reduce local swelling and inflammation, promoting clearance of metabolic waste and supporting the body's natural healing response

Region

Lumbar spine, pelvis, and hip

Technique

Articulation

Rationale

Addressing restrictions in lumbar mobility and hip extension improves overall posture and weight distribution, reducing compensatory forefoot loading during gait

Add-On Approaches

Chinese Medicine

TCM approaches may include acupuncture to local metatarsal points (Liver 3, Stomach 44) and distal points to improve Qi circulation and reduce inflammation; moxibustion may be considered for cold deficiency patterns; herbal remedies addressing blood stasis and Qi stagnation may support healing

Chiropractic

Foot orthotics and metatarsal pads to reduce pressure on the affected metatarsal head; gait analysis and correction; manipulation of midfoot and forefoot articulations to restore biomechanical function

Physiotherapy

Progressive weight-bearing exercises, proprioceptive training, gait retraining to reduce forefoot loading, intrinsic foot strengthening, and graded return-to-activity protocols; ultrasound or other modalities may be used for pain management

Remedial Massage

Soft tissue mobilization of the plantar fascia, foot intrinsics, and lower leg musculature to reduce tension and improve circulation; myofascial release techniques to address compensatory tightness from altered gait mechanics

Rehabilitation Exercises

Metatarsophalangeal Joint Mobilization with Towel

Range of MotionBeginner

Gastrocnemius and Soleus Stretch (Standing or Seated)

StretchingBeginner

Plantar Fascia Stretch (Manual or Tennis Ball)

StretchingBeginner

Intrinsic Foot Muscle Strengthening (Short Foot Exercise)

StrengtheningBeginner

Toe Flexion Resistance Band Exercise

StrengtheningIntermediate

Calf Raises (Modified or Double Leg)

StrengtheningIntermediate

Single Leg Stance (Weight on Unaffected Leg)

BalanceIntermediate

Gait Training with Metatarsal Pad Offloading

PosturalBeginner

Ankle Circles and Alphabet Tracing with Foot

Range of MotionBeginner

Hip Abduction Strengthening (Standing or Side Lying)

StrengtheningIntermediate

Swimming or Pool Walking (Non-Weight Bearing)

CardiovascularIntermediate

Proprioceptive Training on Foam Pad (Advanced Stage)

PosturalAdvanced

Referral Criteria

  • •Severe pain unresponsive to conservative management after 3-6 months
  • •Imaging evidence of significant metatarsal head collapse requiring surgical evaluation
  • •Progressive neurological symptoms or vascular compromise
  • •Persistent functional limitation affecting ability to walk or bear weight
  • •Concern for alternative diagnosis requiring specialist imaging or investigation
  • •Failed conservative management with consideration for orthopedic surgical intervention (arthroscopy, osteotomy, or arthroplasty)
  • •Symptoms suggesting infection, compartment syndrome, or other acute complications