Sesamoid Bone Injury & Fracture 2026 | Podiatrist

Condition	Onset	X-ray Finding	Bone Scan / MRI	Treatment
Sesamoiditis (inflammation)	Gradual; overuse	Normal bone; no fracture line	Increased uptake; bone edema without fracture line	Offloading pad; dancer’s pad; sesamoid cut-out orthotic; 4–8 weeks
Acute Sesamoid Fracture	Sudden; high-impact event; fall or sprint	Transverse fracture line through sesamoid	MRI: bone marrow edema + fracture line; confirms vs bipartite	NWB boot or short leg cast 6–8 weeks; surgical excision if nonunion
Sesamoid Stress Fracture	Gradual; runners; dancers; forefoot strikers	Often normal or subtle; may show fracture with time	MRI gold standard: stress reaction → fracture line	NWB cast 6–8 weeks; bone stimulator adjunct; excision if nonunion
Bipartite Sesamoid (normal variant)	Incidental or post-sprain	Two smooth-edged fragments; bilateral in 85%	No edema if asymptomatic; edema if traumatized	Conservative if incidental; treat as fracture if symptomatic + edema
Avascular Necrosis (sesamoid)	Insidious; post-injury or idiopathic	Sclerosis, fragmentation, collapse of sesamoid	MRI: decreased signal subchondral bone; T1 dark, T2 variable	Extended offloading; surgical excision if pain persists

Treatment	Indication	Technique	Success Rate	Recovery
Dancer’s Pad / Sesamoid Cut-Out	Sesamoiditis; mild stress reaction	J-shaped felt pad offloads sesamoid from plantar surface	60–75% for sesamoiditis	Symptom relief within 2–4 weeks; ongoing with activity
NWB Boot / Short Leg Cast	Acute fracture; stress fracture; grade 2+ stress reaction	6–8 weeks strict NWB; toe stiffer offloaded	60–70% union in acute fractures	6–8 weeks NWB; 3–4 months return to sport
Corticosteroid Injection (sesamoid sheath)	Sesamoiditis; FHB tenosynovitis adjacent to sesamoid	Ultrasound-guided injection into sesamoid-flexor sheath	60–70% short-term	Relief within 1–2 weeks
Sesamoidectomy (excision)	Nonunion; AVN; failed 6 months conservative; chronic pain	Plantar longitudinal incision; sesamoid excised; FHB repaired	75–85%	3–4 months; sport 4–6 months

Quick answer: Treatment for sesamoid bone injury fracture treatment michigan podiatrist follows a stepwise approach: 1) conservative care first (rest, ice, supportive footwear, OTC anti-inflammatories), 2) physical therapy and targeted exercises, 3) in-office treatments (injections, custom orthotics) if conservative fails at 4-6 weeks, 4) surgery for refractory cases. Most patients resolve at step 1 or 2. Call (810) 206-1402.

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The Sesamoid Bones: Small But Critical

Embedded within the tendons of the flexor hallucis brevis on the plantar surface beneath the first metatarsophalangeal (MTP) joint, the medial and lateral sesamoid bones function as pulleys — increasing the mechanical advantage of the FHB muscle during toe push-off and protecting the flexor hallucis longus tendon from excessive ground pressure. Despite their small size, sesamoid injuries are disproportionately disabling because they occur at a critical weight-bearing surface loaded with every step. Ballet dancers, runners, and those who spend time on the forefoot are at highest risk.

Types of Sesamoid Pathology

Sesamoiditis — inflammation of the sesamoid and surrounding soft tissues without fracture — causes progressive insidious forefoot pain beneath the big toe that worsens with walking, particularly during the push-off phase. Sesamoid stress fractures result from repetitive loading, often in runners and dancers, producing acute or progressive pain that worsens over weeks. An important diagnostic challenge is distinguishing stress fracture from the bipartite sesamoid — a normal variant in which the tibial sesamoid develops in two parts, present in up to 10–33% of people. Bilateral X-rays comparing both feet help make this distinction since bipartite sesamoids are typically bilateral and have smooth margins, while fracture margins are irregular and acute. Avascular necrosis of the sesamoid occurs when the blood supply is disrupted, causing progressive bone death and joint surface collapse. Chondromalacia of the sesamoid — articular cartilage degeneration — mimics sesamoiditis but represents early arthritis of the sesamoid-metatarsal articular relationship.

Conservative Treatment

Non-surgical management is the first-line approach for sesamoiditis and stress fractures without displacement. Offloading orthotics with a sesamoid relief accommodation (a cutout beneath the sesamoid) and metatarsal pad redirect pressure away from the painful bone. CAM boot or dancer’s pad taping immobilization allows acute sesamoiditis to settle. NSAIDs and corticosteroid injection reduce inflammation in refractory cases. Activity restriction from high-impact exercise allows healing for 6–8 weeks in most stress fracture cases. Prolonged non-weight-bearing may be required for confirmed stress fractures in dancers or athletes. Conservative care succeeds in the majority of sesamoid pathology cases — patience and strict offloading compliance are essential.

Surgical Treatment: Sesamoidectomy

Surgical sesamoidectomy — excision of one sesamoid bone — is reserved for cases failing 4–6 months of comprehensive conservative care, established avascular necrosis, or complete fractures with non-union. The tibial sesamoid is more commonly excised than the fibular sesamoid. Critical surgical principles include preserving the flexor hallucis brevis tendon and plantar plate integrity to prevent hallux valgus (medial sesamoidectomy risk) or hallux varus (lateral sesamoidectomy risk) deformity. Dr. Biernacki performs sesamoidectomy with meticulous soft tissue repair to minimize deformity risk. Return to full activity following sesamoidectomy is expected at 3–4 months with appropriate rehabilitation.

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Frequently Asked Questions

How long does treatment take to work?

Most patients see improvement in 4-8 weeks with consistent conservative care. Persistent symptoms after 8 weeks need imaging and escalation.

When is surgery needed?

Surgery is reserved for cases that fail 3-6 months of conservative care, structural deformities, or fractures requiring stabilization.

Is this covered by insurance?

Most diagnostic visits and conservative treatments are covered by Medicare and major insurers. Custom orthotics often require diabetic or post-surgical justification.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your sesamoiditis, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.