Table of Contents
ASSH 2020 Precourse
Hari - bridging long nerve gaps
Safa: Composite flaps
Ko: Targeted Muscle Reinnervation
Raja: When to stop
ASSH 2020 Precourse
Hari - bridging long nerve gaps
nerve grafts - kids - good sensation, sometimes motor
running the nerve
combined nerve - do to both median and ulnar nerve
extensor only to MCPJ
Safa: Composite flaps
one or more flaps?
3 flaps for thumb at base
ALT → fibula with spacer for CMCJ (floating) → toe
simultaneous flap
alternatives to ALT – RFF flap
multiple E2S used along radial artery
Radius bone defect
mutliple lattissimus plus fibula for radius
alternatives to fibula for length - 2nd toe / 2nd MC and big toe
Ko: Targeted Muscle Reinnervation
TMR - neural signals still exists → myoelectric
TMR nerve transfers
pain - neuroma better 58% to 4% - Souza CORR 2014
23/26 patients (89%) able to wear prosthesis throughout the day
phantom limb pain is better - annals of surgery
Example transfer
median to ain
ulnar to fcu
dsrbn to fds
acute TMR
pain control
first 2-3 weeks
ue and LE
can't have proximal nerve injury
Raja: When to stop
* basic hand function can be achieved – we are only competing with prosthesis and transplantation
'basic' hand - thumb and post
things that made a difference
radical deb
emergency micro
? later surgery
what is required
skill levels
time – multi-staged procedures
resources
→ if one component is not available –> no more
Site specific
What is 'no more' in one centre, can become 'yes we can' in another center
yes to no conditions
infection
reduced quality of outcome
increases cost
increases time frame of treatment
all components but say no
life at risk or more morbidity – major replant sick at 5 days (SpO2 100) – muscle necrosis –> amputate
- polytrauma – “triage”
e micro
secondary procedures
low threshold for seeking help