Ledderhose Disease (Plantar Fibromatosis)

What it is. Ledderhose disease, also called plantar fibromatosis or Morbus Ledderhose, is a benign but locally infiltrative fibroproliferative disorder of the plantar aponeurosis. Firm, slow-growing nodules form within the fascia, most often along the medial border of the central band. Recent reviews emphasise that it is rare, benign and often difficult to treat, because of its tendency to recur after surgery.

The name. The eponym honours Georg Ledderhose, who described the disease in 1894, and is correctly spelled with two d's. The single-d "Lederhose" is a common misspelling (that word is the Bavarian leather trouser), but it is widespread enough, including in this page's URL, that both forms should be recognised. Every primary source cited below uses Ledderhose.

The family. It is one of the superficial fibromatoses. The underlying biology, myofibroblast proliferation and excess collagen, is shared across the group, so these conditions frequently coexist and the presence of one should prompt examination for the others.

• Dupuytren's disease - palmar and digital fascia of the hand
• Peyronie's disease - tunica albuginea of the penis
• Knuckle pads (Garrod's nodes) - dorsal PIP joints

Epidemiology. Plantar fibromatosis is uncommon and its true incidence is poorly defined. A Dutch population study estimated only about 1.2 operations for plantar fibromatosis per 100,000 people per year, which underlines how rarely it reaches surgery. It is generally reported in middle-aged and older adults, with incidence rising with age and a male predominance, and bilateral involvement occurs in a significant minority.

Associations. A strong link with Dupuytren's disease is consistently reported across case series and reviews, and fibromatosis elsewhere, in the hand or the penis, is the strongest clue. The other associations reported are:

• Anticonvulsant medication
• Chronic alcohol use
• Trauma, including repetitive microtrauma to the sole
• Diabetes mellitus
• Liver disease, with liver dysfunction reported in series

The cell. The core abnormality is uncontrolled proliferation of myofibroblasts within the plantar aponeurosis, with deposition of disorganised collagen. The myofibroblast is a fibroblast that has acquired contractile alpha-smooth muscle actin. It lays down collagen and generates the contractile force that, in the hand, causes finger contractures.

The phases. As in Dupuytren's disease, the process is often described in three overlapping phases.

Why the foot behaves differently from the hand. The biology is shared with Dupuytren's disease but the clinical behaviour is not. Plantar disease tends to remain nodular, whereas palmar disease forms contracting cords. Toe contractures are rare, because the digital extensions of the plantar fascia and the toe anatomy resist the contracting deformity seen in the fingers, and this is a classic exam discriminator between plantar and palmar fibromatosis.

The aponeurosis. The plantar aponeurosis is the thick fibrous band running from the calcaneal tuberosity to the toes. It has three bands, and Ledderhose disease targets the medial side of the central one.

• Central band - the thickest, from the medial calcaneal tuberosity to the toes
• Medial band - thin, over abductor hallucis
• Lateral band - over abductor digiti minimi

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Where the load falls. The instep is not the primary weight-bearing surface; the heel pad and the metatarsal heads are. Nodules there may be tolerated for years, and when they do hurt it is mainly with direct shoe pressure and during push-off rather than as constant standing pain. Pedobarography in painful Ledderhose disease shows that patients offload the midfoot and shift load toward the heel and toes during walking, an adaptive antalgic gait.

The neurovascular layer. The medial and lateral plantar nerves and vessels run deep to the fascia, and they are at risk during fasciectomy.

History. Patients typically describe a firm lump in the instep, often present for months to years. Pain is variable and frequently provoked by:

• Direct pressure from shoes
• Prolonged standing and the push-off phase of gait
• Walking on hard surfaces

What to ask. A history of fibromatosis elsewhere, Dupuytren's disease in particular, is an important clue and should be actively sought. Always examine the hands and ask about Peyronie's disease: it reframes the case as a systemic fibromatosis. Ask too about the other associations: diabetes, alcohol use, anticonvulsant therapy and liver disease.

Inspection. Larger lesions produce visible fullness over the medial arch. The skin is usually intact, so look for dimpling or tethering that suggests dermal involvement.

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Palpation. One or more firm, fixed nodules lie within the plantar fascia, classically on the medial central band. They move with the fascia, not the skin, unless tethered.

Toes and hands. Toe contracture is usually absent in plantar disease, and a significant fixed toe deformity is unusual and should prompt reassessment of the diagnosis. The palms are examined for Dupuytren's nodules or cords, the strongest associated finding and a frequent exam point.

The pathway. Ultrasound is the first-line investigation and is usually sufficient to confirm the diagnosis. MRI is reserved for aggressive, recurrent, large or atypical lesions and to exclude a sarcoma.

Ultrasound. The nodule is well demarcated, iso- to hypoechoic and fusiform, arising within the plantar fascia.

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MRI. Beyond excluding a sarcoma, MRI defines the extent of the disease for surgery. On T1 the lesion is low to intermediate in signal, and the rest of the picture depends on the phase of the disease:

• Mature (residual) lesions are dark. A collagen-rich, hypocellular nodule is low on both T1 and T2 and enhances little. This is the classic fibrous appearance, and the characteristically low T2 signal helps distinguish it from cystic or cellular masses.
• Early (proliferative) lesions are brighter. A cellular, actively proliferating nodule has more cells and water, so it shows higher T2 signal and avid contrast enhancement and can mimic a more aggressive soft-tissue tumour.

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Radiographs. Plain films are usually normal, with no bony change. Their role is to exclude bony pathology and the rare calcification.

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Histology. Biopsy or excision histology is obtained when the features are atypical or malignancy cannot be excluded confidently. The tissue shows bland fibroblastic and myofibroblastic proliferation with abundant collagen and a low mitotic rate. There is no cellular atypia or necrosis, which confirms the benign nature and distinguishes it from sarcoma.

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Principles. Start conservatively and, if you must operate, excise widely. Most patients never need surgery, and surgery itself carries a meaningful recurrence and wound-complication burden.

ConservativeSurgery

Orthotics and padding. Custom insoles with a relief (cut-out) around the nodule redistribute pressure away from the lesion. This is the mainstay, and it helps most symptomatic patients avoid surgery.

Footwear, activity and stretching. Soft, wide, cushioned shoes and activity modification reduce direct loading of the nodule, and these simple measures are effective for many. Plantar fascia and calf stretching may help symptoms, and regimens combining orthoses, medication and physical therapy can control symptoms effectively.

Injections and other agents. Intralesional corticosteroid is used for painful nodules. Reviews also describe collagenase, verapamil, tamoxifen, imatinib and shockwave therapy, but the evidence for all of them is limited, so they remain adjuncts and are not standard first-line care. The drugs are aimed at the myofibroblast and its collagen:

• Collagenase enzymatically lyses collagen
• Verapamil reduces collagen synthesis and increases collagenase
• Tamoxifen lowers TGF-beta-driven myofibroblast activity
• Imatinib inhibits fibroblast tyrosine-kinase signalling
• Corticosteroid is anti-proliferative

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Radiotherapy. Low-dose radiotherapy damages the actively proliferating (myo)fibroblasts of the early, proliferative phase and does little for a mature, acellular residual nodule. It reduces the recurrence rate after surgery, and the price is high enough that it must be quoted with the benefit: in the series this page cites, three of the six irradiated patients had significantly impaired functional outcome, half of those treated. The authors' own conclusion is that adjuvant radiotherapy "should be used very selectively because of its serious side effects", which is a warning rather than a recommendation.

Where radiotherapy fits. It is used for early or recurrent disease and as a post-operative adjuvant to lower recurrence, but only selectively, because of its skin and functional morbidity. It is offered for recurrent or aggressive disease in specialised centres, never as routine adjuvant treatment, and the counselling must state the functional risk explicitly.

Why timing matters. Radiotherapy and the medical agents all work best on active, proliferative disease. Once the nodule is mature collagen, only excision removes it, which is why treatment is staged from conservative and biological measures early to wide fasciectomy for established, refractory disease.

Indication. Surgery is indicated when symptoms persist despite adequate conservative care. The critical exam principle is the extent of excision.

Local nodule excision

What Is Removed

Just the nodule

Recurrence Tendency

Highest

Notes

Largely abandoned - the rest of the abnormal fascia drives recurrence

Subtotal (wide) fasciectomy

What Is Removed

Nodule + generous margin of fascia

Recurrence Tendency

Lower than local excision

Notes

Common pragmatic choice; balances recurrence and morbidity

Total plantar fasciectomy

What Is Removed

Entire plantar aponeurosis

Recurrence Tendency

Lowest

Notes

For diffuse/aggressive disease; higher wound morbidity

Surgical Options by Extent

Procedure	What Is Removed	Recurrence Tendency	Notes
Local nodule excision	Just the nodule	Highest	Largely abandoned - the rest of the abnormal fascia drives recurrence
Subtotal (wide) fasciectomy	Nodule + generous margin of fascia	Lower than local excision	Common pragmatic choice; balances recurrence and morbidity
Total plantar fasciectomy	Entire plantar aponeurosis	Lowest	For diffuse/aggressive disease; higher wound morbidity

Why extent decides recurrence. Recurrence means nodular disease reappearing in or adjacent to the operated field. Because the fascia is diffusely abnormal, inadequate excision predictably recurs, so plantar fasciectomy is the operation of choice and wider excision is associated with the lowest recurrence.

When a repeat local procedure will fail. Two situations predict failure of a further local procedure almost absolutely. In de Bree's referred series, after microscopically incomplete excision, or after excising a recurrence that appeared within six months, essentially every lesion recurred again. An involved margin or a very early recurrence is therefore a reason to change the plan rather than repeat it.

Incision Planning Matters

A poorly planned plantar incision can cause painful scarring, skin necrosis, and difficulty wearing shoes - which may be more disabling than the original nodule. Careful choice of skin incision is central to a successful outcome and to avoiding complications during plantar fasciectomy.

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Outcomes. Well-selected patients undergoing partial or subtotal plantar fasciectomy after failed conservative treatment can achieve excellent symptom relief with no recurrence at medium-term follow-up; case series report pain-free function at 2 to 5 years after adequate excision. Recurrence nonetheless remains the dominant risk when excision is incomplete.

Disease-related. Symptomatic nodules cause pressure pain and the midfoot-offloading gait described above. Nodules may enlarge or multiply, and aggressive forms can rarely cause toe contracture or fascial shrinkage, though this is uncommon.

Treatment-related. Surgery and radiotherapy each carry their own complications.

Evidence and Practice Synthesis

There are no large randomised trials or dedicated international guidelines for plantar fibromatosis given its rarity; practice is guided by case series, narrative reviews, and extrapolation from Dupuytren's disease. The globally consistent themes are summarised below.

Global Epidemiology Notes

• Population data are sparse; a Netherlands study estimated roughly 1.2 plantar fibromatosis operations per 100,000 people per year, reflecting how rarely the condition reaches surgery.
• The condition is reported worldwide across all regions, predominantly in middle-aged and older adults with a male predominance and a strong association with Dupuytren's disease.

Resource-Setting Variation

In settings with ready access to orthotic services, the conservative-first pathway is straightforward. Where custom orthoses are less accessible, simple footwear modification and padding remain effective and low-cost. Radiotherapy and sarcoma multidisciplinary pathways are concentrated in specialist centres, so referral may be required for aggressive, recurrent, or atypical disease.

Related pages: Plantar Fibromatosis is the fuller treatment of this same condition and is the page to read if you want one - it carries seven citations to this page's five, including the radiotherapy dosing evidence and the collagenase experience, and the two pages are registered as a duplicate pair with plantar-fibromatosis as canonical. Dupuytren Disease is the palmar member of the same superficial fibromatosis family and the single most important associated finding to look for - turning the hands over is the examination step that signals you understand this is a systemic diathesis, and the contrast is instructive because the palm forms contracting cords while the sole stays nodular. Desmoid Tumour is the deep fibromatosis at the other end of the family, sharing the histology but not the behaviour, and Calcifying Aponeurotic Fibroma with Elastofibroma Dorsi and Non-Ossifying Fibroma complete the benign fibrous differential. Plantar Fasciitis Management is the far commoner cause of plantar pain and the diagnosis most of these patients are given first - the discriminator is a palpable nodule in the instep rather than tenderness at the calcaneal origin. Tarsal Tunnel Syndrome and Plantar Keratotic Disorders complete the differential for a painful sole. Systematic Approach to Ankle and Foot Imaging and MRI Imaging Principles cover the sequences on which the collagen-dependent signal is judged.