Calcaneal fractures - IT & Ankle...Calcaneal Fractures Type of injury • Fall from a height •...
Transcript of Calcaneal fractures - IT & Ankle...Calcaneal Fractures Type of injury • Fall from a height •...
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CalcanealCalcanealCalcanealCalcanealFracturesFracturesFracturesFractures
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Type of injury
• Fall from a height
• Position of foot at impact
• Bone Quality
• Force of impact
• Essex Lopresti– Primary Fracture line
– Secondary fracture line• Force directed posterior – compression
• Force inferior – tongue type
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T
T
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Coronal
Subtalar joint
Transverse
Calcaneo-cuboid
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Sanders classification
CT based
No. fracture lines
Correlation with outcome
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Sanders et.al
Classification based on three zones in coronal and axial planes
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Type 2: two lines, sustentaculum intactdepression of split posterior facet
Type 1 Undisplaced
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Type 3: three fragmentsinvolves sustentaculumseparating sustentaclum
from post facet.
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Type 4: three lines, multi-fragmentary
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Crosby and Fitzgibbons
All fractures treated closed
• All patients who had a type-I fracture had
good result
• Most type-II fracture and all who had a
type-III fracture had a poor result with
closed treatment, and
• Suggested operative treatment for these
fractures.
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• 20-25% incidence of bony injury to spine, pelvis, hip, knee*
• Blanching of skin
• Tenting of skin
• Blisters
• Stretch pain
*Sangeorzan BJ Orthopaedic Trauma Protocols
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The Soft Tissue Envelope
Caution! Open carefully,
intra-articular fracture
inside
No Returns or
Second
Chances
Handle
With
Care
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Soft tissue management
• No surgical intervention until soft tissues satisfactory
• Elevate to reduce oedema
• Cryocuff
• Pneumatic compression sleeve
• Blister care. Lateral blisters worse than medial blisters. Blood blisters worse than serous blisters
• Splint to prevent equinus
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Non operative management
• Undisplaced fractures
• Smokers
• Diabetics
• Steroid use
• Age
• Noncompliant
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Surgical management
• Articular displacement > 2mm
• Small area of posterior facet
• Large forces across it
• Loss of height
• Loss of width
• Varus angulation tuberosity
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Goals of surgery
• Reconstruct anterior process
• Reconstruct articular post facet
• Attach anterior process to tuberosity
• Restore height width angulation tub
• Attach post facet to tuberosity
• Close without tension
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Surgical tips
• 2 articular surfaces slope medially, calcaneocuboid and post facet
• Sustentacular fragment higher than medial end of post facet
• Don’t penetrate medial wall neurovascular injury
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Surgical approach
• Full thickness down to periosteum in 1 layer
• Elevate calcaneofibular and peroneal retinaculumin same layer
• Flap contains periosteum,peroneal tendons, artery and sural nerve with skin
• Schanz screw in tuberosity to manipulate
• Flip down lateral wall if appropriate, retaining soft tissue inferiorly
• Narrow periosteal elevator as inclined plane to reposition sustentaculum and align with medial wall
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Parallel to TA
Approx 1 cm
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Broden’s view: Xray tube centred on lateral malleolus and angled 10,20,30,40 degrees to head
Foot internally rotated 30 degrees
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Filling the void
• Nothing
• Autologous bone graft
• Allograft
• Synthetic bone substitutes
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The use of Calcium Phosphate in Calcaneal fractures
• Metanalysis of Distal radial, tibial plateau and calcaneal fractures
• Less pain in calcium phosphate group compared to no graft
• Less loss of reduction in Calcium Phosphate group as compared to autogenous
• 3 studies showed increased functional outcome with Ca P compared to no graft
Bajammal and Bhandari JBJS 2008
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Which implants are best
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Operative Vs Nonoperative
• Multicentre RCT
• 4 trauma centres
• Lateral approach, Rigid internal fixn
• Nonop No reduction, ice elevation rest
• SF36, VAS
Buckley JBJS AM 2002
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• 471 calcaneal fractures in 424 patients
• 73% (309) followed up
• Minimum 2 years max 8 years
Operative Vs Nonoperative
Buckley JBJS AM 2002
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Surgical better in…
• Women
• Non Workers compensation
Younger than 29
Bohler angle >0
Comminution
Anatomical reduction <2mm
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• Does ORIF of displaced calcaneal fractures lead to better general health outcomes and disease specific health outcomes as compared to nonoperative treatment ?
• Yes in clearly identified groups.
• Does the outcome after ORIF correlate with postop CT ?
• Yes. Anatomical reduction does much better.
• Are radiographic classifications predictive of prognosis ?
• Yes. Sanders II does much better with ORIF than non-op. In Sanders IV no difference
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Message
• Acute surgical management of displaced calcaneal fractures supported in
– Suitable patients
– By surgeons with a specialist interest
– In centres with a significant volume
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Prospective RCT Sanders IV
• Primary ST fusion Vs ORIF
• Follow up 2 years
• Recruiting since May 2008
Buckley, Calgary 2009
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Case 1 – 49, male fit
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Case 2: 52 , Female, fit
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Case 3:
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Case 4:
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Case 5
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Operative methods:
-goal of restoring articular
congruency
-shape and alignment of the
calcaneus.
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Operative treatment delayed
until swelling has subsided.
A lateral approach with an
extensile incision - the fewest
soft-tissue complications.
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Technique of choice: lag-screw
fixation of the joint and plate
fixation of the calcaneal body
Fluoroscopy to obtain Brodén’s
and axial radiographs.
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Patients who have a highly
comminuted Sanders type-IV
fracture managed with an
anatomical reconstruction of
the calcaneus coupled with
primary subtalar arthrodesis.