Goldenstien Trauma List 10 Flashcards
Indications for surgical treatment of tibial plateau fractures (7)
- Open fracture
- Vascular injury
- Compartment syndrome
- Articular step/gap > 3 mm
- Varus/valgus instability ≥ 10° compared to the contralateral knee
- Condylar widening > 5 mm
- Any medial plateau injury
Tibial plateau fracture complications (12)
- Arthritis
- Loss of meniscal tissue
- Stiffness
- Compartment syndrome
- Peroneal nerve injury (type IV)
- Popliteal artery injury (type IV)
- Venous thromboembolism
- Infection
- Wound dehiscence/skin slough
- Malunion
- Nonunion
- Knee ligamentous instability
Injuries associated with tibial shaft fractures (5)
- Head/chest/abdominal injuries
- Ipsilateral femur fracture
- Ipsilateral knee ligament injury
- Neurovascular injury
- Ipsilateral fibula fracture
(Proximal → distal)
Indications for surgical treatment of tibial shaft fractures (16)
- > 10° sagittal plane angulation
- > 5° coronal plane angulation
- > 1 cm shortening
- >10 degree rotational malalignment
- Transverse/oblique fractures of the middle 1/3
- < 50% cortical apposition
- Tibia fracture with intact fibula
- Tibia/fibula fracture at the same level
- Segmental fracture
- Open fracture
- Compartment syndrome
- Vascular injury
- “Floating” knee
- Knee ligamentous injury
- Polytrauma
- Pathologic fracture
Goals of surgical treatment of tibial shaft fractures (5)
- Timely wound coverage/closure
- Prevention of infection
- Restoration of limb length, alignment, rotation and stability
- Fracture healing
- Return of function
Steps of nonoperative management of tibial shaft fractures (4)
- Long-leg cast with knee in 15° of flexion
- Non-weight bearing until soft callus forms (XR, no pain on palpation)
- Switch to PTB cast or fracture brace with progressive WB and PT
- Discontinue immobilization when clinical and radiographic healing
Principles of surgical treatment of tibial shaft fractures (5)
- Aggressive management of open injuries
- Early soft tissue coverage
- Restore limb length, alignment and rotation
- Stable internal fixation
- Early knee and ankle ROM
Principles of plate fixation of tibial shaft fractures (5)
- Avoid disruption of fracture hematoma/remaining soft tissues
- Proper plate contouring
- Use of large fragment hardware
- 8 cortices on each side of the fracture
- Lag screws for interfragmentary compression only if placed with minimal soft tissue disruption
Advantages of nail fixation over plate fixation/ex-fix of tibial shaft fractures (5)
- Decreased time to union (both – closed #)
- Increased union rate (both – closed #)
- Decreased malalignment (ex-fix)
- Decreased secondary surgeries (ex-fix)
- Shorter time to weight bearing (ex-fix)
- Improved functional outcome (ex-fix)
- Shorter hospital stay (ex-fix)
Methods to avoid valgus/procurvatum deformity in IM nailing of proximal 1/3 tibial shaft fractures (5)
- Posterior and lateral blocking screws
- Lateral start point
- Nailing in extension
- Suprapatellar nailing
- Unicortical plating
Indications for amputation with tibial shaft fractures (9)
- Limb is a threat to patient’s life
- Non-viable limb
- Irreparable vascular injury
- Warm ischemia time > 6 hours
- Severe crush with minimal viable soft tissue
- Irreparable ipsilateral foot trauma
- Reconstruction demands incompatible with patient’s personal/sociologic/economic needs
- Salvage may precipitate MOSF/ARDS
- Segmental tibial loss > 8 cm
Complications of tibial shaft fractures
- Anterior knee pain (30 - 50% resolve with hardware removal)
- Compartment syndrome (5%)
- Infection (deep 1% closed, 25-50% IIIB)
- Vascular injury
- Malunion
- Nonunion
- Wound healing complications
- Delayed union
Risk factors for delayed union/nonunion of tibial shaft fractures (3)
- Mid-third fractures
- Greater initial displacement
- Intact/rapidly healed fibula
- Open fracture
- Opening the fracture site at surgery
- Medical comorbidities
- Smoking
Risk factors for infection in tibial shaft fractures
- Open fracture
- Delayed soft tissue coverage (> 7-10 days)
Risk factors for malunion of tibial shaft fractures (6)
- Shorting
- Same level fibula fracture
- Comminution
- Intact fibula
- Proximal fracture
- Distal fracture
Options for soft tissue coverage of open tibial fractures (7)
- Local rotational flaps
- o Gastrocnemius (proximal)
- o Soleus (mid-1/3)
- o Peroneals (mid-1/3)
- Free tissue transfer
- o Fasciocutaneous flaps (ALT, volar forearm, lateral arm)
- o Myofasciocutaneous flaps (rectus abdominus, latissimus dorsi)
- o Free muscle flaps followed by split-thickness skin grafting
- o Osteocutaneous flaps (iliac crest, vascularized fibula)
Classification of tibial plafond fractures
Ruedi and Allgower Classification
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Type I: Nondisplaced
Type II: Simple displacement with incongruous joint
Type III: Comminuted articular surface
Tibial plafond fractures associated injuries (5)
- Other axial and lower limb skeletal injuries
- Soft tissue injuries
- Compartment syndrome
- Neurovascular injuries
- Head/chest/abdominal injuries
Classic AO principles of treatment of tibial plafond fractures (Ruedi & Allgower) (4)
- Reconstruct the fibula to restore length
- Reconstruct the tibial articular surface
- Perform cancellous bone grafting of the distal tibial metaphysis
- Stabilize the medial column of the tibia
Complications of tibial plafond fractures (7)
- Ankle stiffness (50%)
- Post-traumatic arthritis
- Wound healing complications/skin slough (10%)
- Deep/superficial infection
- Malunion (varus)
- Non-union
- Chronic edema
Ankle fracture classification (Danis-Weber) (3)
A – fibula fracture below the mortise (SAD)
B – fibula fracture at the mortise (SER/PAB)
C – fibula fracture above the mortise (PER)
Ankle fracture classification (Lauge-Hansen) (4)
- Supination-adduction: low transverse lateral malleolus and vertical medial malleolus (A)
- Supination-external rotation: oblique/spiral fibula and transverse medial malleolus (B)
- Pronation-abduction: transverse fibula and transverse medial malleolus (B)
- Pronation-external rotation: fibula above mortise (C)
Classification of posterior malleolus fractures (3)
Type I: posterolateral oblique
Type II: medial extension
Type III: posterior shell
Ankle fractures associated injuries (3)
- Peroneal tendon injury
- Osteochondral lesions of the talus
- Deltoid ligament injury
- Foot fractures
XR findings suggestive of a deltoid ligament injury (3)
- Medial clear space > 4 mm
- Medial clear space > 1 mm larger than superior clear space
- Late talar subluxation
Clinical findings unreliable in diagnosing deltoid ligament injury (3)
- Medial ankle tenderness
- Ecchymosis
- Medial ankle swelling
Indications for surgical treatment of ankle fractures (6)
- Open fracture
- Displaced bimalleolar and trimalleolar fractures
- Displaced isolated medial malleolus
- Displaced lateral malleolus (> 3 mm short) with evidence of deltoid injury
- Posterior malleolus fracture > 25% (with instability)
- Syndesmotic disruption
Complications of ankle fractures (10)
- Post-traumatic arthritis
- Soft tissue problems/skin slough (5%)
- Infection
- Superficial peroneal nerve injury
- Delayed union
- Malunion
- Non-union
- CRPS
- Stiffness
- Loss of reduction
Talar neck fracture classification (Hawkin’s) (4)
Type 1: non-displaced
Type 2: subtalar dislocation
Type 3: subtalar and tibiotalar dislocation
Type 4: subtalar, tibiotalar and talonavicular dislocation
Complications of talar neck fractures (7)
- Osteonecrosis
- Post-traumatic arthritis
- Malunion (varus)
- Skin necrosis
- Infection
- Delayed union
- Non-union
Mechanical blocks to reduction of medial subtalar dislocations (85%) (5)
- Talonavicular joint capsule
- Extensor digitorum brevis
- Extensor retinaculum
- Peroneal tendons
- Impaction fracture of the medial talar neck on lateral navicular
Mechanical blocks to reduction of lateral subtalar dislocations (15%)
- Tibialis posterior tendon
- Flexor hallucis longus tendon
- Lateral talar neck impacted on medial navicular
Classification of calcaneus fractures (Sanders) (4)
- Type I: non-displaced
- Type II: 2-part
- Type III: 3-part
- Type IV: comminuted (≥ 4 parts)
- o A – lateral
- o B – central
- o C – medial
Injuries associated with calcaneus fractures (6)
- Contralateral calcaneus (10%)
- Lumbar spine fractures
- Tibial plateau
- Vertical shear pelvis
- Compartment syndrome
- Fat pad explosion
Principles of ORIF of calcaneus fractures (8)
- Surgery occurs when soft tissues allow
- Full-thickness lateral skin flap
- Sustentacular fragment (“constant fragment”) is the key to reduction
- Work through lateral wall to restore height and width
- Lateral buttress plating with fixation into sustentaculum, articular fragments and anterior process
- Ensure no peroneal impingement
- Careful soft tissue closure over drain
- Early ROM
Complications of calcaneus fractures
- Soft tissue/wound breakdown (#1)
- Infection
- Subtalar arthrosis
- Anterior ankle impingement
- Peroneal tendon/lateral ankle impingement
- Cutaneous neuromas
- Loss of ROM
- Compartment syndrome
- Malunion
Risk factors for soft tissue complications with calcaneus fracture ORIF (5)
- Early surgery
- Diabetes
- Peripheral vascular disease
- Alcohol use
- Smoking
Results of ORIF for displaced intraarticular calcaneus fractures compared to nonoperative treatment (4)
- Decreased risk of subtalar fusion (6x)
- No change in activity
- No change in time to return to work
- No change in subtalar joint motion
Negative prognostic factors for surgically treated calcaneus fractures (7)
- Age > 60
- Male
- Obesity
- Bilateral fractures
- Comminuted fractures
- Polytrauma patients
- WSIB
Causes of foot pain after a calcaneus fracture (10)
- Nonunion
- Malunion
- Peroneal tendon impingement
- Lateral subfibular impingement
- Heel widening
- Subtalar arthritis
- Sural nerve/posterior tibial nerve entrapment
- Missed peroneal tendon injury
- Plantar fasciitis
Classification of navicular fractures (6)
- Dorsal lip (#1)
- Tuberosity (PTT avulsion)
- Body (Sangeorzan)
- o Type I – transverse # involving < 50% of the body
- o Type II – (#1) dorsolateral to Plantarmedial fracture line
- o Type III – central or lateral comminution
- Stress