Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

What Is Second MTP Joint Instability (Predislocation Syndrome)?

Second metatarsophalangeal (MTP) joint instability — also called predislocation syndrome or plantar plate tear — is a progressive condition where the second toe’s plantar plate (a strong fibrocartilaginous stabilizer at the base of the second toe) tears or degenerates, allowing the second toe to drift upward and medially (toward the hallux). Over time, the second toe crosses over the first toe — the “crossover toe” or “floating toe” deformity. It is one of the most commonly misdiagnosed causes of second-toe forefoot pain and is frequently confused with Morton’s neuroma, which causes burning and numbness in the same web space but from an entirely different mechanism. At Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan, Dr. Tom Biernacki, DPM evaluates and treats second MTP instability. Call (810) 206-1402.

Why the Plantar Plate Tears — Risk Factors

The plantar plate is most vulnerable to tearing when: a long second metatarsal (Morton’s toe anatomy) concentrates loading at the second MTP joint relative to the first; a hallux valgus bunion deformity medially displaces the second toe’s soft tissue support, progressively increasing dorsal and medial stress on the plantar plate; hypermobility of the first ray (excessive first metatarsal dorsiflexion) transfers weight laterally to the second metatarsal head; and high-heeled footwear chronically overloads the second MTP joint by concentrating body weight at the forefoot in plantar-flexed position. These risk factors explain why second MTP instability predominantly affects middle-aged women with hallux valgus and a long second metatarsal.

Diagnosis — The Drawer Test and MRI

Clinical diagnosis of second MTP instability: the vertical drawer test — stabilizing the metatarsal head while applying a dorsal force to the proximal phalanx — reproduces pain and demonstrates excess dorsal translation (>2mm is positive); tenderness directly under the second MTP joint at the plantar plate rather than in the web space (distinguishes from Morton’s neuroma, which is tender in the 2–3 or 3–4 web space); and toe purchase test — the patient cannot press the second toe into the floor while standing (extensor tendon overpowering the torn plantar plate). MRI confirms plantar plate tear grade and is required before surgical planning. Dynamic ultrasound can be used as an alternative diagnostic tool by experienced operators.

Conservative Management — Early Stage

Early second MTP instability (toe still reducible, no fixed deformity) responds to conservative management: dynamic toe-splinting tape — applying adhesive tape from the plantar surface of the second toe proximally under the MTP joint and up to the dorsal foot (the “turf toe tape” pattern) — plantarflexes and stabilizes the MTP joint during ambulation; metatarsal pad placed 2–3cm proximal to the second metatarsal head to offload the plantar plate during push-off; custom orthotics with intrinsic forefoot modifications; and avoidance of high-heeled footwear. Conservative management is most effective when initiated before fixed deformity develops — once the second toe develops a fixed crossover position, conservative measures cannot correct the alignment.

Surgical Management — Plantar Plate Repair

When conservative management fails or fixed deformity is present, surgical plantar plate repair restores second MTP stability: the torn plantar plate is accessed through a dorsal incision at the second MTP joint; the tear is repaired with suture anchors into the proximal phalanx; the extensor tendon is often lengthened and a flexor-to-extensor tendon transfer provides dynamic plantarflexion force; concurrent hammertoe correction is performed if necessary. Recovery: 2–3 weeks non-weight-bearing in a post-operative shoe, 6–8 weeks to full activity. Simultaneous hallux valgus correction at the same surgical session dramatically improves outcomes — removing the medial deforming force prevents recurrence of the crossover deformity.

Second MTP Instability Management in Howell & Bloomfield Hills Michigan

Dr. Tom Biernacki, DPM evaluates second MTP instability with the drawer test, dynamic ultrasound, and MRI coordination at Balance Foot & Ankle. Dynamic toe splinting and metatarsal offloading are initiated at the first visit for early-stage cases. Surgical consultation including plantar plate repair and concurrent bunion correction is available for advanced cases. Serving Howell, Brighton, Bloomfield Hills, Royal Oak, Auburn Hills, and all Southeast Michigan. Book your evaluation or call (810) 206-1402.

Crossover Toe & MTP Joint Instability Treatment in Michigan

Second toe crossover and predislocation syndrome are progressive conditions that worsen without treatment. Our podiatrists diagnose MTP instability early using the drawer test and ultrasound, then stabilize the joint before surgical intervention is needed.

Explore Our Forefoot Treatment Options → | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Nery C, et al. Plantar plate injuries of the lesser metatarsophalangeal joints: diagnosis and management. J Am Acad Orthop Surg. 2014;22(4):235-245.
2. Coughlin MJ, et al. Crossover second toe: results of operative treatment. Foot Ankle Int. 2011;32(12):1112-1119.
3. Klein EE, et al. Clinical examination of plantar plate abnormality: a diagnostic perspective. Foot Ankle Int. 2013;34(6):800-804.

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Dr. Tom Biernacki, DPM

Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.