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2/2/2011
Tibial Plafond/Pilon Fractures
The Spectrum of Fracture
The Spectrum of Soft Tissue Injury
Relative Success
Dismal Failure
vs
The Soft Tissue Injury!!
Red Blisters
Clear Blisters
OpenFracture
Terrible Injuries
“Excellent Results” are rarely achieved
Fair-Good results are the norm
Outcomes are impossible to predict
Treatment complications must be avoided
Bone Soft Tissue
2 yrs.
Unusually good!
Tibial Plafond FracturesFair to Good Results Are the Norm
1991 - anterior B-3 fracture
6 months 3 years
Fair to Good Results Are the Norm
8 years
Fair to Good Results Are the Norm
Ankle score - 80Works as a laborer
5 years - no painankle score 95Case 1
6.5 yrs - miserable -
ankle score 45Case 2
Case 1 Case 2
� Avg. age 35-40
� Rare in children and elderly patients
� Males 3 x more common
� 3-9% of all tibia fractures
� Associated injuries 25-50%
� Increased incidence – Air Bags!!!
Save lives yes, but devastate the foot and ankle
Burgess et al JT 1995Lower extremity injuries in drivers
of air-bag equipped automobiles
Multiply injured patients with and without foot injuries ( 24 and 12 month follow ups)
Dramatic differences in pain, function and health related quality of life
Ankle Soft Tissues
Thin skin
Absent muscle
and adipose tissue
Lack of deep veins
Particularlyvulnerable!
The soft tissues over the anteromedial tibia are vulnerable
Dense trabecular structure of distal tibia
Bone is viscoelastic Axial load is rapid Shift in stress strain curve Tremendous energy release
Displacement
Load
Stress strain curves for rapid vs. slow rate of loading
Rapid axial load
Slow rotational load
Note the greater energy under
the curve!!
Rotational ankle fracturesare different - good prognosis and
few complicationswith standard techniques
Dense trabecular structure Thin soft tissues Axial Loading Typical fracture pattern Severe soft tissue injury
Reudi and Allgower - 1969
Is this a tibial plafond fracture? Does it belong in 43?
Plafond yes!!
C-2?
Or
C-3?
Four principles “stood the test of time”
Anatomical reduction
Stable internal fixation
Atraumatic technique
Early pain-free mobilization
“Precise reconstruction of articular surfaces is the goal, and is always preferred to tolerable malalignment”.
These Principals Illustrated for Fractures of the Tibial Plafond
Ill-Advised
Extensive surgical approaches
Fracture stripping
Prolonged tourniquet times
Bulky implants
Increased soft tissue injury
A recipe for disaster
}
Limb Threatening Complications
McFerran et al JOT 199221pts (40%) with major complications
require 77 additional operations Wyrsch et al JBJS 1996
3/18 amputations in closed fractures
Teeney and Wiss CORR 1993
37% infection and 26% fusion in Type 3’s
Cases Treated1980’sEarly 1990’s
Delays until surgery
Spanning ex fix part of most protocols
Percutaneous and limited approaches
Spanning ex fx Marsh et al JBJS 1995 – 43 cases 0% Wyrsch et al JBJS 1996 – 20 cases 5 %
External fixation same side Court Brown et al JOT 1999 – 24 cases 4% Tornetta et al JOT 1993– 26 cases 7%
Delayed plating Patterson and Cole JOT 2001 – 22 cases 0% Sands et al CORR 1998– 64 cases 6 % Sirkin et al JOT 1999 - 48 cases 6%
0-10%
1. Spanning articulated fixation with percutaneous or limited approaches to the articular surface and screw fixation
2. Percutaneous plating3. Standard plating through open approaches
after long delays for soft tissue recovery
Spanning fixator for three months A large monolateral frame fixed into the
talus and calcaneus Relatively earlier approaches to reduce the
articular surface percutaneously
Suited for all tibial plafond fractures Ideal for very comminuted cases Contraindicated with ipsilateral talus or
calcaneus fractures Beware diaphyseal extension or severe open
fractures which might delay healing
Span the zone of injury
Fixator applied first
Same technique all cases
One step surgery
Largely
percutaneous
AdvantagesArticulated
FIXATOR TECHNIQUE - Same for all cases!
Target the neck of the talus
posterioros calcis
Technical tips
Talar pinparallel to top of talus
Depth of insertion – Hindfoot pins must capture the entire talus and calcaneus
Harris viewCanale view
Position of pinsAssembled fixator
Keep the pins in the same plane!
Technical tips
Center the talus on two views
The articular surface can not be reduced if the talus Is not repositioned
Axial CT scan critical for pre op planning
The more you use limited approachesthe more planning that is required
Limited or percutaneous approachesand use of reduction aids
Reduction forceps based on anterolateral incision –
Watch out for SPN!
Open approaches when necessary based on major anterior fracture line
Direct approaches - no stripping
Percutaneous reduction sequencevisualized flouroscopically
2 year follow up
Never plated
Treat withfixator
Bone graft less
than 10%
ROM
Splinting
Wt. Bearing
~ 3 months after injury Outpatient clinic Calcaneal screw typically
loose Often use SLC for another
month
Uses medial sub cutaneous border Needs pre contoured plate Locking may offer advantages Ideal for a select group of fractures
Non articular distal tibia Limited articular involvement Build back articular block through limited
approaches
Distal tibia without articularDistal tibia without articularinvolvementinvolvement
External fixator Femoral distractor Manual traction Well placed clamps
Reduction: Ligamentotaxis
Femoral distractor
=
If Injured, Repair the Fibula
Pre-size and bend plate
Or use precountoured plate
• Rotation
• Curve
Anatomy:
Medial face
Incision
SubQ Tunnel
Insert plate
Confirm placement
Stab……Drill, Tap, & Screw
Post-op
4 months
Another example in a Another example in a more complex fracturemore complex fracture
5 months
Indicated to treat the range of tibial plafond fractures
Temporary spanning fixation and long delay to definitive surgery
Several different open approaches
1st Stage: Temporary Fixation application of spanning external fixator, ORIF of the fibula, as soon after presentation as possible, stabilize the fracture while allowing the
soft tissue swelling to resolve,
Interim: ice, elevation, pre-operative plan, TIME to allow swelling to resolve,
2nd Stage: Definitive Fixation ORIF tibia, removal of external fixator,
“Traveling Traction”Half Pins
TransfixationPin
Ice, elevation, CT scan, crutch training,
Pre-operative plan, TIME to allow
swelling to resolve,
Fibula posterolateral approach
when an anteromedial approach to the tibia is planned,
maximize the width of the skin bridge,
Fibula Implants:
Metaphyseal fracture 1/3 tubular plate, large screw,
Fibula Implants:
Metaphyseal fracture 1/3 tubular plate, large screw,
Fibula Implants:
diaphyseal fracture 3.5 LC – DCPlate
Rationale: cortical bone, highest energy fractures, slower healing,
Extensile Anteromedial Approach: “Workhorse”,
Anterolateral Approach: gaining in popularity,
Posterolateral Approach: recently proposed,
Anteromedial Approach Superficially:
minimum 7 cm skin bridge, begin ½ finger breath lateral to crest
over the anterior compartment, continue parallel to Anterior Tibialis
tendon, towards the talonavicular joint,
Post-operative soft tissue complications
Anteromedial Approach Superficially:
begin ½ finger breath lateral to crest over the anterior compartment,
continue parallel to Anterior Tibialis tendon,
towards the talonavicular joint, maintaining a 7 cm skin bridge,
Medial
talonavicular joint
medial
Anteromedial Approach Deep dissection:
carried out medial to Anterior Tibialis tendon,
longitudinal arthrotomy, gentle elevation of tendons and
neurovascular bundle,medial
Anteromedial Approach Deep dissection:
remain medial to Anterior Tibialis tendon,
longitudinal arthrotomy, gentle elevation of tendons and
neurovascular bundle,medial
Articular Reduction: largest and least displaced articular fragments
first, reduced fragments held with:
K-wires (1.2 or 1.6mm), pointed reduction forceps, lag screws,
reduce articular bloc to shaft, definitive fixation,
DON’T make medial a incision !!! the incision ends up directly over
the plate, difficult to close, increased wound complications,
deep infection, soft tissue loss, free flap only bailout,
burn bridges later reconstruction,
Not This Incision !!
Make This Incision !!
Anterolateral Approach Indications:
open medial wound, displaced Chaput fragment, lateral articular comminution,
Advantage: plate coverage, uninjured skin,
Caution Superficial peroneal nerve
Anterolateral Approach Deep Dissection:
through superior and inferior retinaculae, interval between toe extensors and fibula, elevate muscles off interosseous
membrane, Caution
Superficial peroneal nerve
Anterolateral Approach Deep Dissection:
through superior and inferior retinaculae,
interval between toe extensors and fibula,
elevate muscles off interosseous membrane,
Caution Superficial peroneal nerve
Advantages a single incision for ORIF
of the tibia and fibula, FHL is positioned
between the skin and the implants in case of post-op wound complication,
Disadvantages limited access to anterior
articular fracture fragments, prone position, sural nerve at risk,
Posterolateral Approach
Implants: Small Fragment Plates
cloverleaf shaped plate, distal radius “T” plates, 1/3 tubular plates, 3.5 LC-DCP,
Screws 3.5 cortical/4.0
cancellous, cannulated: 4.0/4.5
Implants: Small Fragment Plates
cloverleaf shaped plate, distal radius “T” plates, 1/3 tubular plates, 3.5 LC-DCP,
Screws 3.5 cortical/4.0
cancellous, cannulated: 4.0/4.5
Bone Graft support articular
fragments, augment healing, fill cancellous defects,
ICBG, Allograft, Synthetic
Calcium putties,
Meticulous Wound Closure meticulous closure, 1-0 vicryl for capsule, 2-0 vicryl for
subcutaneous tissue, 3-0 nylon for skin,
Allgower’s modification of the Donati stitch,
Allgöwer stitch modified by DonatiAllgöwer stitch modified by Donati
Summary: Tibial Plafond Fractures Represent both a bony and soft tissue injury, AO Principles:
Anatomic articular reduction, stable fixation, early mobilization of patient and limb.
several approaches to the tibia can be safely used, internal fixation is accomplished with small fragment
implants, meticulous soft tissue closure,
Results
Most have some pain
Most return to work
Detectable arthrosis - 50%
Arthrodesis rare
Pain Analysis
� 50% - no/minimal pain
� 35% - pain with weight bearing
� 15% - continuousMarsh et al. JBJS 1995
Sands et al CORR 1998 - 2-4 years after injury Delayed plating
Pollak et al JBJS 2003 – average 3.2 years after injury Plating and external fixation
Marsh et al JBJS Feb 2003 – 5-11 years after injury Spanning external fixation
0
20
40
60
80
100
PF* PR* BP* GH VT SF RE MH
Plafond
Norm
SF-36: Plafond vs Aged Matched Norms
5-11 years after injury (Marsh et al JBJS Feb 03)
Significantlydifferent
Ankle Osteoarthritis Scale: Plafond 5-11 Years after Injury
0
0.2
0.4
0.6
0.8
1
1.2
Pain Disability Mean
Plafond
Norm
0
2
46
8
10
12
1416
18
20
Grade 0 Grade 1 Grade 2 Grade 3
# of patients
25/33 rated their ankle good or excellent
Motion avg. 75% opposite
Only 2/37 late arthrodesis 5.4%
Sequential Ankle Score: 67 at 24 mo, 86 at 92 mo (p<.004)
Time to maximal healing: 2.4 yr (9 mo-5 yr)
Reasonable evidencethat patients improvefor a long time!
Do not be too quick to offerreconstruction!
1986 - 24 yo Male
1 year
7 years
14 years
Works light labor
Prefers high top boots
Occasional pain
Ankle score 80
Most have some ankle painCan not run or play sportsMeasurable effect on general health status70% with moderate or severe arthrosis
Excellent results are only rarely achieved
Most rate their outcome as good or excellent
Arthrodesis rate only ~ 5% Most feel they improve for years
Fair to Good Results Are the Norm
Summary and Conclusions
High energy fractures with severe associated soft tissue injury
Unpredictable outcomes Keep complications – 10% or less Results:
Generally not great But if you stay out of trouble not awful
Long lasting effect on patient health related quality of life and a greater effect on ankle pain and function
Arthrosis common by 2 years after injury and typical in the second five years. The clinical significance is variable.
The variation in outcome is unpredictable
The severity of injury/quality of reduction are important but better techniques to understand this critical interaction are needed
Do not be quick to suggest arthrodesis based on severity of injury or quality of reduction
Patients improve for a long time and most do not require arthrodesis
Complications must be avoided since they produce bad outcomes and the extent that we improve outcome with aggressive surgery is at least unclear