Dupuytrens Contracture Flashcards

1
Q

What is DC

A

contraction of the longitudinal palmar fascia.

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2
Q

How does DC start.

A

Painless nodules which progresses to:
fibrous cords and flexion contractures develop at the MCP and interphalangeal joints, which can severely limiting digital movement

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3
Q

Which digits does DC Normally affect

A

Ulnar digits

  • little and ring finger
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4
Q

What is the pathophysiology of DC

A

fibroplastic hyperplasia and altered collagen matrix of the palmar fascia. This compositional change leads to a thickening and contraction of the palmar fascia.

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5
Q

What is the progression of DC

A

Initial pitting and thickening of palmar skin

Firm painless nodule begins to form

Cord development

Contraction of the cord => progressive flexion deformity

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6
Q

What are the risk factors for DC

A

Smoking

Alcoholic liver cirrhosis

DM

Occupation exposure

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7
Q

what are the clinical features of DC

A

range from reduced range of motion and nodular deformity through to a complete loss of movement as they can present in any stage of DC

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8
Q

In what percentage of cases is the condition bilateral

A

45%

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9
Q

What is the Huestons test

A

if the patient is unable to lay their palm flat on a tabletop, this is a positive test.

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10
Q

What are the differential diagnoses

A

stenosing tenosynovitis (often painful and associated with overuse or trauma),

ulnar nerve palsy (associated with reduced movement/strength and loss of sensation),

or trigger finger (nodule present associated with finger motion).

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11
Q

What are the investigations that need to be carried out

A

Clinical diagnosis mainly however ideally pt needs

Routine bloods

LFTs

Random glucose

HbA1c

These are to check for any risk factors that would back up the clinical judgement

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12
Q

How do you manage DC conservatively

A

Hand therapy - keep the hand active throughout the day

Injectable collagenase clostridum histolyticum (CCM)

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13
Q

When is surgical management indicated in DC

A

those with functional impairment, MCP joint contracture >30 degrees, any PIP contracture, or rapidly progressive disease.

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14
Q

What are the surgical approaches available

A

Fasciectomy using:

  • regional fasciectomy
  • segmental fasciectomy
  • dermofasciectomy

Finger amputation

Closed fasciotomy

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