Dupuytrens Contracture Flashcards
What is DC
contraction of the longitudinal palmar fascia.
How does DC start.
Painless nodules which progresses to:
fibrous cords and flexion contractures develop at the MCP and interphalangeal joints, which can severely limiting digital movement
Which digits does DC Normally affect
Ulnar digits
- little and ring finger
What is the pathophysiology of DC
fibroplastic hyperplasia and altered collagen matrix of the palmar fascia. This compositional change leads to a thickening and contraction of the palmar fascia.
What is the progression of DC
Initial pitting and thickening of palmar skin
Firm painless nodule begins to form
Cord development
Contraction of the cord => progressive flexion deformity
What are the risk factors for DC
Smoking
Alcoholic liver cirrhosis
DM
Occupation exposure
what are the clinical features of DC
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
In what percentage of cases is the condition bilateral
45%
What is the Huestons test
if the patient is unable to lay their palm flat on a tabletop, this is a positive test.
What are the differential diagnoses
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).
What are the investigations that need to be carried out
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
How do you manage DC conservatively
Hand therapy - keep the hand active throughout the day
Injectable collagenase clostridum histolyticum (CCM)
When is surgical management indicated in DC
those with functional impairment, MCP joint contracture >30 degrees, any PIP contracture, or rapidly progressive disease.
What are the surgical approaches available
Fasciectomy using:
- regional fasciectomy
- segmental fasciectomy
- dermofasciectomy
Finger amputation
Closed fasciotomy