A joint nobody studies cleanly — and the quiet shift from cutting it out to saving it.
A teaching brief for residents · By Peter Sorensen, DPM
01
Start here
There is no clean "2nd MTPJ osteoarthritis" literature
Primary OA at this joint is rare. If you search "second MTPJ arthritis," you will find almost nothing. The degeneration is real — it just hides under three other diagnoses. Search those instead.
Pathway A · the big one
Freiberg's Infraction
AVN of the metatarsal head. The largest, most surgically relevant body of evidence relevant to this joint. Where most "2nd MTPJ" surgery actually lives.
Pathway B
Instability & Plantar Plate
Crossover toe / predislocation syndrome. The plantar plate fails, the toe deviates, and untreated dislocation ends in secondary DJD.
Pathway C
Trauma · Inflammatory · Iatrogenic
Post-fracture, rheumatoid forefoot, or degeneration that follows a prior Weil osteotomy and transfer metatarsalgia.
02
Why the second ray
The most loaded, least forgiving lesser joint
The second metatarsal is the longest, recessed into the cuneiform mortise as the Lisfranc keystone — stiff where the first ray is mobile. Peak plantar bending load sits beneath it. The plantar plate is the primary static stabilizer, and the 2nd MTPJ lacks a plantar interosseous insertion, leaving it exposed to unopposed lumbrical pull. The result is a joint primed for both overload arthrosis and instability.
68%
of Freiberg's involves the 2nd met (3rd 27%, 4th 3%)
63–90%
of all lesser-MTPJ plantar plate tears occur here
~5:1
female predominance in Freiberg's disease
86%
women in the crossover-toe surgical cohort (Kaz & Coughlin)
03
Staging Freiberg's
The Smillie ladder (1955)
Descriptive, widely cited, and — honestly — inconsistently used. In one survey ~70% of surgeons said the stage did not change their procedure choice. Still the common language, so know it cold. The pivot point is whether the plantar cartilage is still intact.
IFissure fracture in the epiphysis; subtle sclerosis. Often MRI-only. Conservative.
IICentral depression / early collapse of the articular surface.
IIICentral absorption with medial & lateral projections — plantar cartilage still intact. The joint-sparing sweet spot.
IVLoose body; fracturing of the peripheral projections.
The arc is unmistakable: a century of drift away from destroying the joint and toward sparing, decompressing, and finally resurfacing it. The osteotomy that rotates healthy plantar cartilage into the load zone was the hinge point; cartilage transplantation is the current frontier.
1914
Freiberg describes the infraction of the 2nd metatarsal head.
1955
Smillie publishes the five-stage radiographic classification.
1979
Gauthier & Elbaz — the dorsiflexory closing-wedge osteotomy (DCWMO), 53 cases. Rotates intact plantar cartilage into the joint. Becomes the workhorse.
1984
Weil begins the distal oblique shortening osteotomy — later borrowed for both Freiberg's and plantar plate repair.
1987
Coughlin defines crossover-toe deformity, launching the instability literature.
1995
Freiberg & Freiberg — core decompression for early, pre-collapse disease.
2008+
Osteochondral autograft (OAT / mosaicplasty) enters foot-and-ankle practice for head resurfacing.
2019
Georgiannos — the field's only RCT: OAT vs DCWMO in athletes.
2026
Meta-analysis (16 studies, 259 toes) tilts toward OAT as the preferred joint-preserving option.
05
The verdict
Joint-sparing outperforms joint-destruction
Schade's 2015 systematic review (Level IV) is the field's anchor synthesis. The signal is consistent even if the evidence is soft: preserve the joint where you can.
Joint-sparing · 257 procedures, mean f/u 30 mo>90%
Joint-destructive · 70 procedures, mean f/u 15 mo>70%
Pain resolution + full return to activity. A second review (2020) graded the evidence for essentially every procedure as poor (grade C) — sparing and sacrificing alike. Read the trend, not the decimals.
06
The surgical menu
What's actually described in the literature
Joint-Sparing / Preserving
Debridement / cheilectomy / synovectomy
Any stage. Low morbidity, often combined or arthroscopic. Doesn't address collapse.
Smillie III–IV, plantar surface intact. The most-reported option; 84–100% good results. Costs ~15° MTPJ motion.
Osteochondral autograft (OAT)
Advanced disease, >⅓ surface lost. Knee-plug resurfacing; preserves length. The modern challenger.
Interpositional arthroplasty
Late III–V. EDL / EDB / periosteum-fat / allograft spacer. Best joint-sparing salvage.
Head remodeling · distraction
Case-series and emerging; thin evidence.
Joint-Destructive / Sacrificing
Metatarsal head resection (DuVries)
The old mainstay — largely abandoned for isolated disease. Causes transfer metatarsalgia & instability. Survives in rheumatoid forefoot.
Implant / hemi / total arthroplasty
Silastic & metallic tried; small series (e.g. 63% good, n=31). Newer designs at proof-of-concept. Not standard.
Lesser MTPJ arthrodesis
Rare; mainly for crossover toe, not pure arthritis. Karlock: 10/11 good–excellent. Nonunion ~13%. Niche.
07
The headline debate
DCWMO vs OAT for advanced Freiberg's
This is the one place the field has comparative data. The lone RCT called them equal; the 2026 meta-analysis leans OAT. The numbers below are the ones worth remembering.
DCWMO
Gauthier-Elbaz dorsal wedge
AOFAS63 → 84
Return to sport13 wks
Met length−1.9 mm
Pooled complications~6%
Track recordsince 1979
vs
OAT
Osteochondral autograft
AOFAS63 → 92
Return to sport10 wks
Met length+0.2 mm
Pooled complications~1%
Trade-offknee donor
RCT: Georgiannos 2019, n=27, 3-yr follow-up — statistically better AOFAS for OAT, not clinically decisive. Both work. Meta-analysis 2026: AOFAS mean difference +7.15 favoring OAT, complication risk ratio 0.23.
08
The cross-cutting workhorse
The Weil osteotomy — and its tax
The Weil shortens an elongated metatarsal with stable fixation and shows up everywhere: metatarsalgia, instability (with plantar plate repair), and modified for Freiberg's. But it carries a signature complication that every resident must counsel for.
36%
Floating toe across 1,131 Weil osteotomies — the most common complication. Recurrence 15%, transfer metatarsalgia 7%, delayed/non-/malunion ~3%.Highlander et al, systematic review (2011)
Worse when combined with PIP arthrodesis. The triple-cut ("triple Weil") modification aims to reduce plantar translation and the floating-toe rate. Iatrogenic 2nd MTPJ stiffness and degeneration are recognized downstream consequences.
09
Pathway B in depth
The instability cascade → secondary DJD
The plantar plate attenuates, then tears. Sagittal instability becomes transverse deviation — the crossover toe. Left alone, it ends in fixed dislocation and degenerative joint disease. The treatment philosophy moved from indirect balancing to direct anatomic repair.
Then
Indirect
Weil osteotomy alone, or flexor-to-extensor (Girdlestone-Taylor) transfer to rebalance the toe.
Now
Direct Repair
Anatomic plantar plate repair via dorsal (with Weil) or plantar approach. Coughlin-practice series: well-aligned toe in 87%, recurrence 7.6%.
Watch for
The Drawer Sign
The most reliable physical finding for instability (Kaz & Coughlin). Test it before the radiograph convinces you otherwise.
10
Decision lens
How to think through it
1
Diagnose the driver — don't code "arthritis"
Freiberg's (image + Smillie stage), instability (drawer test, MRI), post-traumatic, or inflammatory. This single decision dictates everything downstream.
2
Exhaust non-operative care first
≥6 months for Freiberg's I–III: offloading orthoses, met pads, stiff/rocker sole, NSAIDs, judicious injection (avoid weakening the plantar plate). ~60% of non-athletes get relief.
3
Match procedure to stage & surface
Early (I–II): debridement ± core decompression. Intermediate (III–IV) with intact plantar cartilage: DCWMO, or OAT if >⅓ surface lost and expertise exists. Late (IV–V): interpositional arthroplasty as best sparing salvage; reserve resection/implant/fusion for failures and rheumatoid forefoot.
4
Honor the plan-changers
Plantar surface destroyed → abandon DCWMO, resurface or interpose. Met excessively long → add shortening. Choosing OAT → counsel on the knee. Any Weil → counsel on floating toe and avoid concurrent PIP fusion where possible.
Plantar plate repair — indirect vs direct, and dorsal vs plantar approach.
Does Smillie stage matter? Most surgeons say it doesn't change their plan.
The Weil itself — championed and criticized; much controversy traces to technique drift and concurrent PIP fusion.
✦ Pearls
Stage III is the sweet spot — intact plantar cartilage is what DCWMO and interposition both exploit.
Length is currency — DCWMO shortens, OAT preserves; weigh it against transfer metatarsalgia risk.
The drawer test beats the radiograph for instability.
Destruction is a salvage, not a default — head resection lives on mainly in the rheumatoid forefoot.
12
Read this before you cite anything
How good is the evidence, really?
The whole field rests on Level IV retrospective series — often fewer than 15 patients, no standardized outcome measure, inconsistent staging, short follow-up. There is exactly one RCT (n=27). No procedure is an established gold standard. Treat every percentage here as low-confidence and procedure-specific.
Confidence by claim
Joint-sparing > joint-destructive (the trend)High · consistent
DCWMO vs OAT — which is betterMedium · debated
Implants & lesser-MTPJ arthrodesis for arthritisLow · emerging
⚠ Verify locally before applying. Much of this sits below an 8/10 evidence threshold.
13
Selected sources
The papers worth knowing
Schade VL. Surgical Management of Freiberg's Infraction: A Systematic Review. Foot Ankle Spec. 2015. (Level IV anchor synthesis.)
Georgiannos D, et al. Osteochondral Autologous Transplantation vs Dorsal Closing Wedge Osteotomy for Freiberg in Athletes — RCT, 3-yr follow-up. Am J Sports Med. 2019. (The only RCT.)
Tham/Kennedy, et al. Autologous osteochondral transplantation vs DCWMO for Freiberg's: systematic review & meta-analysis. Foot Ankle Surg. 2026.
Gauthier G, Elbaz R. Freiberg's infraction: a subchondral bone fatigue fracture — a new surgical treatment. 1979. (Origin of the DCWMO.)
Highlander P, et al. Complications of the Weil Osteotomy — systematic review of 1,131 cases. Foot Ankle Spec. 2011.
Coughlin MJ. Crossover second toe deformity. Foot Ankle. 1987 · Kaz & Coughlin. Crossover second toe: demographics, etiology, radiographic assessment. 2007.
Pereira BS, et al. Long-term follow-up of dorsal wedge osteotomy for pediatric Freiberg. Foot Ankle Int. 2016.
Smillie IS. Freiberg's infraction (Köhler's second disease) staging, 1955 · Freiberg AH. Original description, 1914.
Social graphic copy
Everyone learns the 1st MTPJ. Almost nobody learns the 2nd — and the literature is hiding in plain sight.
2nd MTPJ arthritis isn't studied as OA — it lives under Freiberg's, instability & iatrogenic disease.
The field shifted from resecting the joint to saving it: sparing >90% vs destructive >70%.
One RCT. Thirty-six percent floating toe. A staged way to think about all of it.
Editorial & AI disclaimer. This brief was produced with AI assistance and is for educational purposes only. It is a synthesis of a literature that is overwhelmingly Level IV, with extrapolation from adjacent conditions (Freiberg's, plantar plate instability, rheumatoid forefoot, hallux rigidus). It is not clinical, surgical, or billing guidance, and is no substitute for primary sources, attending judgment, and institutional protocol. Verify everything locally before applying.