Freiberg Infarction Osteonecrosis 2026 | DPM

Smillie Stage	Radiographic / MRI Finding	Symptoms	Treatment
Stage I	MRI: subchondral ischemia only; normal X-ray	MTP pain without visible X-ray change; diagnosis requires MRI	NWB offloading boot; metatarsal pad; activity restriction
Stage II	Slight central depression of metatarsal head; MRI: subchondral fracture	Mild swelling, pain at 2nd MTP (most common)	NWB boot 4–6 weeks; metatarsal relief pad; reduce impact activity
Stage III	Further depression; no absorption of sides; early flattening	Moderate pain; beginning MTP stiffness; shoe irritation	NWB boot + custom orthotics; cortisone injection; consider surgery
Stage IV	Metatarsal head flattening + loose bodies + joint incongruity	Significant pain; restricted MTP ROM; palpable crepitus	Surgery: debridement, dorsiflexion osteotomy, or joint resection
Stage V	Articular collapse; degenerative arthritis; complete destruction	Severe pain; fixed deformity; MTP arthritis pattern	Joint resection arthroplasty or MTP fusion

Treatment	Stage	Success Rate	Recovery
NWB boot + metatarsal pad	I–II	70–85%	4–8 weeks boot; return to activity gradually
Custom orthotics (metatarsal dome)	I–III (long-term)	60–75%	Ongoing; transfers load from affected metatarsal head
Corticosteroid injection (MTP joint)	II–III	50–65% short-term	Reduces acute synovitis; max 2–3×
Dorsiflexion osteotomy	III–IV (intact plantar cartilage)	80–90%	Protected WB 4–6 weeks; return to activity 3–4 months
Joint debridement + loose body removal	IV	70–80%	WB in surgical shoe 2–4 weeks; full activity 8–12 weeks
Joint resection arthroplasty	V (advanced arthritis)	75–85% (pain relief)	WB in surgical shoe; full activity 8–12 weeks

Quick answer: Freiberg Infarction Metatarsal Osteonecrosis Michigan Podiatrist is a common foot/ankle topic that affects many patients. The 2026 evidence-based approach combines proper diagnosis, conservative-first treatment, and escalation only when needed. We treat this regularly at our Howell and Bloomfield Hills practices. Call (810) 206-1402.

Freiberg’s infraction — named for Albert Freiberg who first described it in 1914 — is avascular necrosis (osteonecrosis) of a metatarsal head, most commonly the second metatarsal. Unlike osteonecrosis of the hip or femoral condyle, which are well-known to most physicians, Freiberg’s infraction is often overlooked as a cause of forefoot pain — leading to delayed diagnosis, inappropriate treatment, and progressive joint destruction. Dr. Tom Biernacki at Balance Foot & Ankle recognizes Freiberg’s infraction as a distinct diagnosis, stages it accurately, and provides treatment that preserves joint function and prevents progression.

Pathophysiology: How Metatarsal Head Osteonecrosis Develops

The metatarsal head receives its blood supply through nutrient vessels entering the dorsal and plantar surfaces. These vessels are vulnerable to disruption from repetitive trauma, excessive mechanical loading (in adolescents with a long second metatarsal or elevated first ray, and in adults with similar biomechanical overload), or vascular insufficiency. When blood supply is compromised, the metatarsal head bone undergoes ischemic necrosis: osteocytes die, the structural bone architecture weakens, and subchondral bone beneath the articular surface collapses under continued weight-bearing loading. The articular cartilage — which relies on synovial fluid rather than direct blood supply for nutrition — may remain initially viable even as the underlying bone collapses, but eventually the cartilage loses its structural support and fragments.

The second metatarsal head is affected in approximately 68% of cases because the second metatarsal is typically the longest and most mechanically loaded metatarsal in patients with Freiberg’s infraction. The third metatarsal is involved in approximately 27% and the fourth in 5%. First and fifth metatarsal involvement is rare.

Who Develops Freiberg’s Infraction?

Adolescent females account for the majority of Freiberg’s infraction presentations — the condition typically develops during rapid growth, peaking in the 11-17 year age range when the metatarsal head epiphysis is vulnerable to vascular disruption from mechanical stress during the growth spurt. Women are affected 3-5 times more often than men, possibly because high-heeled footwear concentrates forefoot loading on the metatarsal heads. Adult-onset Freiberg’s infraction occurs less commonly from chronic repetitive overloading, high-heeled footwear use over years, or metatarsal stress fracture that disrupts the nutrient blood supply during healing.

Smillie Staging Classification

Stage I: Early ischemia with subtle fissure lines in the subchondral bone; MRI shows medullary edema. X-rays may appear normal. Stage II: Early collapse of the central metatarsal head with a central depression visible on X-ray. Stage III: Further subchondral absorption producing a crater in the metatarsal head with plantar and dorsal shelves. Stage IV: Loose body formation as articular fragments separate. Stage V: Severe flattening and collapse of the entire metatarsal head with secondary arthritic changes at the MTP joint.

Symptoms

Freiberg’s infraction presents as pain and swelling over the affected metatarsal head, worsening with walking, running, and high-heeled footwear. The pain is located at the plantar aspect of the affected MTP joint — similar to general metatarsalgia — but MTP dorsiflexion is typically limited and painful due to joint incongruity and inflammation. In later stages, a visible dorsal prominence at the affected MTP joint may be palpable from metatarsal head remodeling and loose body formation. Joint crepitus during range of motion examination is characteristic of Stage III-IV disease.

Conservative Treatment

For Stage I-III Freiberg’s infraction, conservative management with aggressive pressure redistribution is the primary treatment. The goal is to eliminate forefoot impact loading on the affected metatarsal head to allow the avascular bone to revascularize without further collapse. Dr. Biernacki’s conservative protocol includes: metatarsal pad placement proximal to the affected metatarsal head, rocker-sole cushioned footwear that reduces metatarsal head impact with each step, strict avoidance of high-heeled footwear, and a CAM boot for acute flares. Activity modification to reduce forefoot impact loading is maintained until clinical and radiographic improvement is documented.

Surgical Treatment

For Stage III-IV Freiberg’s infraction with persistent pain and joint incongruity despite 3-6 months of conservative management, surgical intervention is indicated. The dorsal closing wedge osteotomy is the most commonly performed procedure: a wedge of bone is removed from the dorsal metatarsal neck, and the metatarsal head is plantarflexed — rotating the healthy plantar cartilage (which was previously non-weight-bearing) into the weight-bearing position, replacing the collapsed dorsal articular surface. This elegant procedure preserves the MTP joint, eliminates the painful collapse area from weight-bearing contact, and achieves 80-85% good to excellent long-term results.

For Stage IV-V disease with significant loose bodies, joint debridement with loose body removal reduces mechanical symptoms. For end-stage (Stage V) disease with complete metatarsal head destruction and secondary arthritis, metatarsal head resection or metatarsophalangeal joint fusion are salvage options discussed with patients on an individual basis.

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Frequently Asked Questions

When should I see a podiatrist?

If symptoms persist past 2 weeks, affect your normal activity, or are accompanied by red-flag symptoms (warmth, redness, swelling, inability to bear weight).

What does treatment cost?

Most diagnostic visits and conservative treatments are covered by Medicare and major insurers. Out-of-pocket costs vary by your specific plan.

How quickly can I get an appointment?

Most non-urgent cases see us within 5 business days. Urgent cases (sudden pain, possible fracture) typically same or next business day.

What is Metatarsalgia?

Metatarsalgia is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.

Symptoms and warning signs

Common signs of metatarsalgia include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.

Conservative treatment options

Most cases of metatarsalgia respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.

When is surgery considered?

Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.

Recovery timeline and prevention

Recovery from metatarsalgia varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.

In-Office Treatment at Balance Foot & Ankle

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