Ankle and foot Standard Ankle Series AP Ankle Medial Oblique Ankle Lateral Ankle.
The complicated ankle fractureao-danmark.dk/.../02/5-The-complicated-ankle-fracture-LB.pdf2020/02/05...
Transcript of The complicated ankle fractureao-danmark.dk/.../02/5-The-complicated-ankle-fracture-LB.pdf2020/02/05...
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The complicated ankle fracture
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Male
Age 79
Non-smoker
NIDDM
Angiopathy
Neuropathy
Nefropathy, hemodialysis
Cardiomyopathy
Obese (97 kg)
Mobilised with rollator
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Lasse Bayer Hillerød Hospital 2012
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Lasse Bayer Hillerød Hospital 2012
7 weeks later
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Thur et al. Acta Orthop 2012
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Red flags • Geriatric patient (poor bone quality)
• Diabetes
• Smoking
• Alcohol abuse
• Obesity
• Compromised soft tissue
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Primum non nocere
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Figure 1. Highly comminuted fibula fracture with associated medial malleolus fracture and
syndesmotic disruption.
Ellen P. Fitzpatrick, and John Y. Kwon Foot Ankle Int
2014;35:943-948
Copyright © by American Orthopaedic Foot & Ankle Society
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Syndesmotic injury Tips and tricks
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The syndesmosis Malreduction
• Weening B, Bhandari M: Predictors of functional outcome following transsyndesmotic screw fixation of ankle fractures. J Orthop Trauma 2005;19(2): 102-108.
16% • Sagi HC, Shah AR, Sanders RW: The functional consequence of syndesmotic joint malreduction at a
minimum 2-year follow-up. J Orthop Trauma 2012;26(7): 439-443.
39% • Gardner MJ, Demetrakopoulos D, Briggs SM, Helfet DL, Lorich DG: Malreduction of the tibiofibular
syndesmosis in ankle fractures. Foot Ankle Int 2006;27(10):788-792
52% • FrankeJ,vonRecumJ,SudaAJ,GrütznerPA, Wendl K: Intraoperative three-dimensional imaging in the
treatment of acute unstable syndesmotic injuries. J Bone Joint Surg Am 2012;94(15):1386-1390.
25,5%
Accurrate reduction of the syndesmosis is a major factor in the resulting outcome
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What to do???
• Consider strongly anatomic fibular reduction whenever possible
• Direct visualization – Anterior
– Posterior (reduction and fixation of posterior malleolar fracture)
• X-ray evaluation
Mortise + TRUE LATERAL
• Arthroscopic evaluation
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Direct visualization Anterior
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Mortise view
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Lateral view True
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Figure 3. (A) AP and (B) lateral showing correction of length and rotation using the pointed
reduction clamp is secured via a 2.0 mm k-wire.
Ellen P. Fitzpatrick, and John Y. Kwon Foot Ankle Int
2014;35:943-948
Copyright © by American Orthopaedic Foot & Ankle Society
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6,81−3,19 +(8,58−4,31)
2 = 3,94
Mean difference in anterior displacement and posterior displacement MAX 2 mm
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The complicated ankle fracture
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Ankle fracture success
AIM
• To place the talus under the plafond
• To hold it there until union
90% do well, regaining 90% function
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Calcaneo-talo-tibial nail
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Operation samme aften (efter 14 timer) Anklen meget hævet – især medialt
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9 dage senere Kommer til at træde på foden ved et uheld
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Bagkanten
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True lateral
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Figure 2. Placement of the pointed reduction clamp and 2.0 mm K-wire.
Ellen P. Fitzpatrick, and John Y. Kwon Foot Ankle Int
2014;35:943-948
Copyright © by American Orthopaedic Foot & Ankle Society
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Figure 4. Comparison of (A) AP and (B) lateral C-arm images of contralateral side and final
fixation and (C) final AP image.
Ellen P. Fitzpatrick, and John Y. Kwon Foot Ankle Int
2014;35:943-948
Copyright © by American Orthopaedic Foot & Ankle Society
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Lasse Bayer Hillerød Hospital 2012
6 weeks later
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Mean difference in anterior displacement and posterior displacement MAX 2 mm
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Postoperative evaluation
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6,81−3,19 +(8,58−4,31)
2 = 3,94
Mean difference in anterior displacement and posterior displacement MAX 2 mm
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Overcompression?
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Figure 7. As a frame of reference, squeezing a full, sealed aluminum can until wall indents
represents approximation of the grip force required (65 N) to obtain mean reduction force
associated with adequate compression (130 N) at the tines of the ball-point reduction clamp.
Jacob Haynes et al. Foot Ankle Int 2016;1071100716634791
Copyright © by American Orthopaedic Foot & Ankle Society
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Spørgsmål?
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Spørgsmål?
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Smoking 6 x risk for infection
Dose-response relatioship Ovaska et al. JBJS Am 2013, Nåsell et al. JOT 2011
Alcoholism Ovaska et al. JBJS Am 2013, Höiness et al. Injury 2003
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Diabetes / Hyperglycemia
Factors predisposing to infections: Angio-/neuropathy
Impaired wound healing
Dalayed fracture healing
Bryce et al. CORR 2015, Richards et al. JBJS Am 2012