Notes
Slide Show
Outline
1
The Linburg Comstock Anomaly
  • L C Bainbridge
  • Consultant Hand Surgeon
2
Linburg and Comstock
  • JHS(Am) 1979 79-83
    • Described 31% unilateral incidence and 14% bilateral
    • 4 clinical cases with chronic tenosynovitis
3
Lombardi, Wood and Linscheid
  • JHS(Am) 1988 325-8
    • 33 patients with palmar pain
    • 26 wrists explored
    • All had hypertrophic synovium, half had a tendinous connection
    • 13/17 with greater than 6 month followup were improved
4
Clinical Picture
  • Simultaneous flexion of the index DIP joint with thumb IP flexion
5
The painful anomaly
  • 7 patients over 8 years.
  • All unilateral although 5 bilateral anomaly
  • All post traumatic
  • All seen by at least one other unit before diagnosis
6
Presentation
  • Pain on activity
    • Gripping
    • Pulling
    • Wrist movement under load
  • Pain identified as volar
    • Radial rahter than ulnar
    • Passing up forearm
    • Tearing in nature
7
Presentation
  • Tenderness
    • Distal 1/3rd of forearm
    • Between FPL and FDP (FCR and PL)
  • Clinical tests
    • Demonstrate anomaly
    • Passive extension of index whilst maintaining active thumb flexion
    • Pain relieved by local anaesthetic into wrist
8
Trauma
  • Movements that cause finger extension from power grasp position
  • 5/7 trolley/ cage/ roller injury
  • 1 fall
  • 1 pulling jelly shoes off a mould


9
Treatment
  • Linscheid suggested steroid not effective
  • 5/7 have been explored through a volar approach
  • 3/5 had a definite anomalous tendon
  • 2/5 had a specific piece of tissue thicker than synovium passing from FPL to FDP(II) and capable of transmitting force
  • All had resection of the tissue
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11
Postoperative care
  • Immediate Physio
    • Differential movement of the thumb and index
    • Full thumb flexion with passive and active index extension
    • Full index flexion with active and passive thumb extension