Trauma Flashcards
Definition of compartment syndrome?
- Increased osteofascial compartment pressure to a level that decreases perfusion
- Due to decreased compartment size, or increased compartment content
Risk factors for compartment syndrome?
- Blunt trauma
- Crush injury/prolonged limb compression
- Haemorrhage into compartment
- Fracture
- Burns
Presentation of compartment syndrome?
Symptoms
- Severe pain out of proportion with clinical situation
Signs
- Pain with passive stretch
- Tense/woody compartment
- Late = paraesthesia, absent pulses
Complications of compartment syndrome?
Volkman’s ischaemic contracture
Amputation
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Management in compartment syndrome?
CALL SENIOR
Investigations (clinical diagnosis)
- Bloods work up for surgery: FBC, UEs, LFTs, CRP, Clotting, G&S
- ECG
- Nil by mouth
General
- Release/remove cast and dressings down to level of skin
- Elevate limb to the level of the heart
- Give analgesia and reverse any hypotension/coagulopathy present
Surgical
- Refer to orthopaedics
- Will require surgical fasciotomy to relieve pressure
- May require skin graft to close fasciotomy
Where you need to palpate for Ottowa Ankle Rules?
What views do you need for X-ray?
- Posterior tip of lateral malleolus
- Posterior tip of medial malleolus
- Base of 5th metatarsal
- Navicular
- INABILITY TO WEIGHT BEAR IMMEDIATELY AND IN ED
AP, lateral and mortise view
Grading of ankle sprains? Where and how do they most occur?
85% are lateral ankle sprains, due to inversion of plantar flexed foot
- Grade 1 – ligament stretched with microscopic tear, patient can weight bear partially
- Grade 2 – partial tearing, mod-severe swelling. Difficulty weight bearing
- Grade 3 – ruptured ligament, swelling immediate and severe, cannot weight bear. Instability of joint present.
Management of ankle sprain?
POLICE
- Protect
- Optimal loading (rest but use muscles to prevent loss of strength)
- Ice (10-30 mins)
- Compression (bandage)
- Elevation
Simple analgesia, gentle exercise as soon as pain allows.
Severe sprains with rupture (grade 3) may require surgical repair. They should be immobilised for a short period to increase recovery time (below knee cast/brace)
What is this?
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Colle’s Fracture
Fracture of distal radius with dorsal displacement of fragments
What is this?
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Smith’s fracture
Distal radius fracture with volar (anterior) displacement of fracture fragments
History of Colle’s fracture?
- Fall on outstretch hand (FOOSH)
- Pain, swelling, bruising, deformity, loss of function, instability
- Check mechanism of injury – if mild force then consider osteoporosis
Dinner fork deformity - with deviation backwards and laterally
Complications of Colle’s fracture?
- Median/ulnar nerve damage with acute carpal tunnel syndrome
- Compartment syndrome
- Deformity leading to loss of mobility and function
- Chronic pain, mal/non-union, arthritis, complex regional pain syndrome
Definitions of…
- Simple
- Compound
- Comminuted
- Greenstick
- Simple: Fracture that is not displaced, no break in skin
- Compound: Fracture with overlaying break in the skin, even if bone not protruding
- Comminuted: Fracture with 3+ fragments of bone
- Greenstick: In young person, bone bends and then breaks
Management of Colle’s fracture?
- Reduction of fracture with appropriate analgesia
- Move forwards and medially
- Apply back slab and repeat X ray to assess reduction, repeat if unsatisfactory
- Healing = 6 weeks, give appropriate analgesia
Surgical reduction if intra-articular fracture
Risk factors for # femur?
High impact injury (RTA)
Elderly, female
Osteoporosis
Pathological (metastatic disease)
Presentation of # femur?
Symptoms
- Severe pain with supporting hx of injury
- Tense, swollen tender thigh
- Inability to weight bear
Signs
- Deformity and shortening on affected side
- Assess neurovascular status of limb
- Open wound (trauma cases)
Complications of # femur?
Early
- Major blood loss (1500ml), especially if not obvious in closed fracture
- Acute compartment syndrome
- High risk of infection in open fracture
Late
- Fat embolism (more common in closed, 24-72 hours after injury with SOB, petechial rash, high temp, drowsiness and oliguria)
- DVT, PE, infection, malalignment, non-union
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Investigations in # femur?
General
- Monitor observations to check for blood loss/other complications
Bloods
- FBC, UEs, LFTs, CRP, Clotting, G&S/X-match
Imaging
- X Ray of affected limb – AP, lateral, Oblique
- Also ipsilateral knee and hip to rule out co-existing NoF fracture
- Consider CT in mid-shaft fractures
Management of severe # femur?
- Resuscitation - ATLS - PRC/fluid replacement
-
Reduction - restore the anatomy, relieve pressure on surrounding nerves, vessels, muscle
- Thomas’ splint to immobilise
- Stabilisation - hold the reduced fracture
- Rehabilitation - restore function
Surgical
- Intramedullary nail – rod into bone marrow of femur and fixed with nails
- Early mobilisation and treatment to reduce risk of complications – physiotherapy involvement and mobilisation recommended day after surgery
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What this ting?
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Thomas’ splint
Risk factors for tibula/fibula fracture?
- Direct blow or falls onto tibial shaft
- High energy injury
- Violent twisting injury (contact sports)
- Motorcycle accidents
Usually presents as tib/fib fracture - isolated tibial fracture rare.
Complications of tib/fib fracture?
- Neurovascular compromise (especially popliteal artery injury)
- Compartment syndrome
- Peroneal nerve injury (in fibular neck fracture), infection
- Non-union
What is this?
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Maisonneuve fracture
- Spiral fracture of upper fibula, with ankle tibia fracture
- Requires internal fixation
Management of tib/fib fracture?
Un-displaced
- Analgesia and immobilisation in long leg back slab
- Spiral and oblique fractures = unstable
- Refer to orthopaedic team
Displaced
- Analgesia, immobilise in back slab, refer orthopaedics
- May require manipulation under anaesthesia or IM nail
- Urgent orthopaedic referral if ?vascular injury, sensory deficit or gross swelling
Compound
- Irrigate wound with saline, cover with sterile dressing
- IV antibiotics, tetanus
- Refer orthopaedics for urgent cleaning, debridement and fixation with IM nail or external fixation