Greenstick Fracture

Populations and Risk Factors

Occurs almost exclusively in children, typically under 10 years of age
Due to incomplete ossification and higher organic bone content in pediatric bones
Caused by falls, direct blows, or twisting injuries
Risk of refracture if the limb is stressed before the remodeling phase is complete
Boys more commonly affected (higher activity level and injury exposure)

Angulatory force mechanism: Bending forces place the long bone under a bending load. The bone fails on the convex (tension) side of the bend while the concave (compression) side remains intact but plastically deformed
Pediatric bone properties: Children's bones are not yet fully ossified. They contain more organic matrix (collagen) relative to inorganic mineral (hydroxyapatite), giving them greater flexibility and resilience but less rigidity than adult bones
Instability risk: Because the bone remains partially intact, it can redisplace after reduction, especially if the periosteum on the concave side is not disrupted — this makes proper immobilization critical
Healing advantage: The intact periosteum provides a rich blood supply and osteoprogenitor cells, allowing faster healing (typically 4-6 weeks) compared to adult fractures
"Local shock" phenomenon: Immediately after fracture, temporary numbness and muscle flaccidity occur in the region for up to 30 minutes, which can mask the severity of the injury

Angulation or visible bowing of a limb without a complete snap
Sharp, severe, and intolerable pain localized to the site
Loss of function. Pain aggravated by any attempt to move
Sharp, localized tenderness at the specific site of the bend
Local shock: temporary numbness followed by severe pain and spasm
Swelling develops rapidly but may not be as dramatic as a complete fracture
Red flags: Numbness of the skin or profuse bleeding in a child with a suspected fracture requires immediate physician referral; signs of compartment syndrome (unrelenting pain, loss of distal pulses) require emergency referral

Greenstick fractures occur exclusively in children due to incomplete ossification and high organic bone content
The bone bends on the concave side rather than snapping through — a partial cortical disruption
Instability after reduction is a key concern. Proper immobilization is essential
Compartment syndrome is a possible complication if swelling is contained within a tight cast or fascial compartment
Children heal these fractures faster than adults, typically within 4-6 weeks

All acute fractures, including greenstick, locally contraindicate massage until the bone is medically stabilized and initial soft tissue damage is addressed
During immobilization: Lymphatic work to decrease cast-related edema is appropriate. Massage elsewhere on the body addresses compensatory patterns such as limping or altered carriage
Post-immobilization: Evaluate for muscle atrophy and joint stiffness caused by the duration of the cast. Gentle ROM restoration and myofascial work
Pediatric considerations: Parental consent and presence required. Treatment must be age-appropriate. Use lighter pressure and shorter sessions
Safety: Numbness of the skin or profuse bleeding requires immediate physician referral. Monitor for signs of compartment syndrome
Refracture risk: The limb remains vulnerable until remodeling is complete — avoid aggressive mobilization or stretching in the early post-cast period

Greenstick fractures are partial breaks exclusive to children, caused by their bones' higher organic content and incomplete ossification
The bone bends on the concave side and breaks on the convex side, remaining in one piece but potentially unstable
Local contraindication to massage applies until the bone is stabilized. Lymphatic work is appropriate during immobilization
Refracture risk exists if the limb is stressed before remodeling is complete
Compartment syndrome and vascular compromise must be monitored as complications
Children heal greenstick fractures within 4-6 weeks due to the intact periosteum providing rich blood supply