March Fracture
Lower LimbOverview
March fracture is a stress fracture commonly affecting the second or third metatarsal, typically occurring in military personnel, athletes, or individuals with sudden increases in weight-bearing activity. It results from repetitive microtrauma exceeding the bone's capacity to repair, causing incomplete fracture lines without displacement. Early recognition and appropriate load management are essential to prevent progression to complete fracture and chronic complications.
Pathophysiology
March fracture develops through cumulative microtrauma to metatarsal bones during repetitive high-impact activities. Osteoclastic activity exceeds osteoblastic repair capacity, creating stress-induced bone resorption. Risk factors include sudden increases in activity intensity, poor footwear, pes planus or cavus, osteoporosis, nutritional deficiencies (calcium, vitamin D), and biomechanical abnormalities. The second metatarsal is most commonly affected due to its length and reduced mobility at the tarsometatarsal joint. Progressive microfractures can propagate through the cortex if loading continues unchecked.
Patient Education
Stress fractures heal best with early identification and activity modification—complete rest is often unnecessary, but you must avoid high-impact activities while maintaining gentle, pain-free movement to promote bone remodeling and prevent muscle deconditioning.
Typical Presentation
Site
Dorsal midfoot over the second or third metatarsal shaft; pain typically well-localized and point-tender
Quality
Dull, aching pain with sharp exacerbations on weight-bearing; described as 'gnawing' or 'throbbing'
Intensity
Mild to moderate (3-6/10) at onset, increasing progressively with activity; morning pain common
Aggravating
Marching, running, jumping, prolonged standing, high-impact activities, sudden increases in training intensity, wearing tight footwear
Relieving
Rest, ice application, elevation, reduced weight-bearing, soft shoes with appropriate arch support, gentle activities like swimming or cycling
Associated
Swelling over the metatarsal head, warmth, erythema, limp, antalgic gait, foot stiffness in morning, possible generalized foot pain
Orthopaedic Tests
Percussion Test (Axial Loading)
Procedure
Patient stands or sits with the affected foot relaxed. Clinician gently percusses (taps) along the long axis of the metatarsal or tibia with a reflex hammer, progressing from distal to proximal.
Positive Finding
Localized pain or tenderness reproducing the patient's symptoms over the fracture site
Sensitivity / Specificity
Unknown / Unknown
Interpretation
Suggests stress fracture; helps localize the site of injury but is not specific to march fracture alone
Palpation for Bony Tenderness
Procedure
Systematic palpation of the affected metatarsal shaft (commonly 2nd or 3rd) or tibia with firm thumb or finger pressure to identify point tenderness and possible callus formation.
Positive Finding
Precise, reproducible tenderness over the metatarsal or tibial shaft; may include palpable bony callus in chronic cases
Sensitivity / Specificity
Unknown / Unknown
Interpretation
High clinical suspicion for stress fracture when localized to weight-bearing bones in high-impact athletes; callus suggests healing phase
Hop Test / Single-Leg Stance
Procedure
Patient attempts single-leg hopping on the affected limb or maintains single-leg standing for 30 seconds. Observe for pain reproduction or inability to perform.
Positive Finding
Pain in the metatarsal or tibial region, limping, or inability to complete the task without significant discomfort
Sensitivity / Specificity
Unknown / Unknown
Interpretation
Functional reproduction of symptoms supports diagnosis; absence does not rule out early-stage stress fracture
Radiographs (Weight-Bearing if Tolerated)
Procedure
Anteroposterior, lateral, and oblique radiographs of the foot (or tibia) taken in weight-bearing position if pain permits; compare to contralateral side.
Positive Finding
Early: subtle periosteal reaction, endosteal thickening, or callus formation. Late: discrete lucent line perpendicular to the cortex
Sensitivity / Specificity
15–50% in early stages; 90%+ in healing/chronic stages / 95%+ when fracture line visible
Brubaker & Beaulieu, 1985, Medicine & Science in Sports & Exercise; See current literature for meta-analyses
Interpretation
Low sensitivity early; radiographs may appear normal in first 2–3 weeks. Positive findings confirm diagnosis and assess healing stage
Magnetic Resonance Imaging (MRI)
Procedure
MRI of the affected foot or tibia with T1 and T2-weighted sequences (and STIR if available) in coronal and sagittal planes
Positive Finding
Bone marrow edema (hyperintense on T2/STIR), periosteal edema, or a discrete fracture line perpendicular to the cortex
Sensitivity / Specificity
90–95% / 95%+
Fredericson & Bergman, 1994, Radiographics; Arendt & Griffiths, 1997, Journal of the American Academy of Orthopaedic Surgeons
Interpretation
Gold standard for early diagnosis; detects stress fracture within days of symptom onset; guides severity classification and return-to-play decisions
Bone Scintigraphy (Technetium-99m Three-Phase Scan)
Procedure
Three-phase technetium-99m bone scan: perfusion phase, blood pool phase, and delayed static images of the affected region
Positive Finding
Focal increased uptake (hot spot) on delayed images in the metatarsal or tibial diaphysis; often bilateral in 'march fracture' of the 2nd metatarsal
Sensitivity / Specificity
85–95% / 60–80% (elevated uptake seen in other painful conditions)
Matheson et al., 1989, The Radiology of Sports Injuries; See current literature
Interpretation
Highly sensitive for metabolic activity; useful when MRI unavailable; less specific than MRI; useful for detecting bilateral or multiple stress fractures
⚠ Red Flags
- •Severe, unrelenting pain unresponsive to activity modification over 6+ weeks
- •Signs of systemic infection (fever, chills, night sweats) suggesting osteomyelitis
- •History of pathological fractures or multiple stress fractures suggesting underlying metabolic bone disease
- •Acute onset with direct trauma suggesting displaced fracture requiring imaging
- •Severe soft tissue compromise, compartment syndrome signs (severe swelling, pain out of proportion, paresthesia)
- •Non-healing fracture after 3+ months of appropriate management requiring specialist review
⚡ Yellow Flags
- •Excessive training volume or sudden increases in activity (overuse culture)
- •Disordered eating patterns or restrictive diet associated with female athlete triad
- •Perfectionist personality with difficulty accepting activity modification
- •Pressure from coaches or peers to return to sport prematurely
- •Body image concerns or preoccupation with training despite injury
- •Social isolation if unable to participate in team sports
- •History of previous stress fractures suggesting chronic biomechanical or systemic issues
Osteopathic Techniques
Region
Metatarsal-tarsal joint and second/third metatarsal
Technique
Soft Tissue
Rationale
Gentle soft tissue release reduces protective muscle guarding, improves local circulation to facilitate bone healing, and alleviates myofascial referred pain patterns that may mask primary injury
Region
Plantar fascia and intrinsic foot muscles
Technique
Soft Tissue
Rationale
Releasing plantar fascia tension improves intrinsic foot stabilization, reduces compensatory metatarsal loading, and enhances proprioceptive feedback critical for normal gait mechanics
Region
Tarsometatarsal joints (Lisfranc articulation)
Technique
Articulation
Rationale
Gentle oscillatory movements restore normal joint mechanics without aggressive mobilization, improve proprioceptive input, and prevent adaptive stiffness during early healing phase
Region
Subtalar and ankle joints
Technique
MET
Rationale
Muscle energy techniques normalize subtalar inversion/eversion mechanics and ankle dorsi/plantarflexion, correcting biomechanical contributors to metatarsal overload
Region
Lumbar spine, hip, and knee
Technique
Articulation
Rationale
Addressing proximal kinetic chain restrictions restores normal force distribution through the lower limb, reducing compensatory forefoot loading that perpetuates metatarsal stress
Region
Thoracolumbar fascia and lower leg compartments
Technique
Soft Tissue
Rationale
Fascial release improves overall lower limb integration and reduces compartmental pressure, supporting optimal blood flow and proprioceptive function during rehabilitation
Add-On Approaches
Chinese Medicine
Traditional Chinese Medicine approaches focusing on Liver and Kidney meridians (governing bone health), with acupuncture at Zusanli (ST36) and Taixi (KI3) to support bone healing, combined with warming moxibustion over the affected metatarsal
Chiropractic
Foot and ankle manipulation of the tarsometatarsal and subtalar joints to optimize biomechanics, combined with foot orthotics assessment and prescription to reduce metatarsal shear forces
Physiotherapy
Progressive resistance and proprioceptive exercises, kinetic chain analysis addressing hip and core stability deficits, gait retraining, and graduated return-to-sport protocols with load monitoring
Remedial Massage
Deep tissue massage of calf musculature, peroneals, and foot intrinsics to address myofascial tension patterns; cross-friction techniques applied cautiously after acute phase to promote controlled tissue remodeling
Rehabilitation Exercises
Ankle Alphabet Exercise
Plantar Fascia Stretch (Calf Stretch Against Wall)
Toe Extension Stretch (Long Sitting, Pull Toes Back Gently)
Short Foot Exercise (Intrinsic Foot Arch Activation)
Towel Scrunches (Seated, Curl Toes to Draw Towel)
Marble Pickup Exercise (Toes Grasp and Lift Marbles)
Single-Leg Standing (Eyes Open, Progress to Eyes Closed)
Tandem Stance (Heel-to-Toe Standing)
Four-Point Kneeling with Hip Extension (Core and Gluteal Activation)
Calf Raises (Double-Leg, Progress to Single-Leg)
Lateral Band Walks (Hip Abduction with Resistance Band)
Pool Walking or Swimming (Non-Impact Cardio, Pain-Free)
Referral Criteria
- •Severe pain with signs of displaced or complete fracture on clinical assessment or imaging
- •Failure to show clinical improvement after 6-8 weeks of appropriate conservative management
- •Recurrent stress fractures suggesting underlying metabolic bone disease (osteoporosis, vitamin D deficiency) requiring endocrinology review
- •Suspected or confirmed compartment syndrome requiring immediate surgical intervention
- •Signs of osteomyelitis or systemic infection requiring infectious disease specialist
- •Significant swelling with neurovascular compromise requiring vascular assessment
- •Female athlete with recurrent stress fractures and eating disorder concerns requiring sports medicine and mental health assessment
- •Fracture with vascular compromise or complex multi-metatarsal involvement requiring orthopedic surgical consultation