MSK trauma Flashcards
Pelvis avulsion injury: attachment?
- Iliac crest
- Abdominal muscles (eg obliques)
Pelvis avulsion injury: attachment?
- ASIS
- Sartorius
- Tensor fascia lata
Pelvis avulsion injury: attachment?
- AIIS
- Rectus femoris
Pelvis avulsion injury: attachment?
- Greater trochanter
- Hip rotators, gluteus muscles
Pelvis avulsion injury: attachment?
- Lesser trochanter
- Iliospoas
Pelvis avulsion injury: attachment?
- Ischial tuberosity
- Hamstrings
Pelvis avulsion injury: attachment?
- Symphysis
- ADDuctor group
Segond fx
- Body part?
- Associated injury?
- Lateral tibial plateau
- ACL (75%)
Reverse Segond fx
- Body part?
- Associated injury?
- Medial tibial plateau
- PCL
Arcuate sign
- Body part?
- Associated injury?
- Proximal fibula
- PCL (90%)
Deep intercondylar notch sign
- Body part?
- Associated injury?
- Lateral femoral condyle
- ACL
O’Donoghue’s Unhappy Triad
- Classic constituents?
ACL tear
Medial meniscus
MCL
Keinbock disease
- AVN of the lunate
- Commonly seen with ulnar NEGATIVE variance
- T1 signal dropout
Colles’ fx
- Distal radius
- Dorsal angulation/tilt
(Looks like a Collie dog’s wrist)
Smith fx
- Distal radius
- Volar angulation
Barton fx
- Radial rim fx (articular)
- Volar more common than dorsal
Bennett fx vs Rolando fx
- body part?
- difference?
- BASE of 1st metacarpal
- Rolando is comminuted
Gamekeeper’s thumb?
- Avulsion fx, BASE of 1st proximal phalanx
- UCL injury
Stener lesion
- UCL injury (Gamekeeper’s thumb) with displacement of UCL EXTERNAL to the adductor tendon aponeurosis
- SURGERY: UCL can’t re-approximate and heal
Monteggia fx
Proximal ulna fx + anterior dislocation of radial head
mugger: MU-GR
Galeazzi fx
Radial SHAFT fx + dislocation of ulna at DRUJ
mugger: MU-GR
Essex-Lopresti fx
Radial HEAD fx + dislocation of ulna at DRUJ
Anterior dislocation of the shoulder:
- Fx of greater tuberosity?
- Fx of anterior inferior glenoid?
- Hill-Sachs (H for Humerus)
- “Bony” Bankart (Bankart = anteroinferior labrum)
- Who gets conventional total shoulder arthroplasty?
- Reverse?
- Shitty glenoid, cuff intact
- Shitty glenoid, cuff tear
Reverse helps keep the joint seated: if the cuff is gone, reverse TSA
Patellar dislocation
- What ligament is injured?
Medial patellofemoral ligament
- Classification system for tibial plateau fractures?
- Most common subtype (numerical value and description)?
- Schatzker (real quick, 1-3 involve lat TP; 4 is purely medial; 5 is both; 6 is transverse fx metadiaphysis + TP fx)
- 2 is most common (wedge fx of lat TP with depression or displacement/splitting)
Pilon fx?
Common association?
- Fx of tibial plafond (at the ankle)
- Distal fibular fx
Direction of physeal closure at the distal tibial physis?
Medial first, lateral last
Fx name/eponym:
Salter-Harris 3 fx of anterolateral distal tibial epiphysis?
Tillaux fx
Describe 3 components of a triplane fx
- Vertical component –> epiphysis
- Horizontal component –> physis
- Oblique component –> metaphysis
Medial malleolus fx + widening of tibiofibular syndesmosis at the ankle
- Name?
- What next?
- Maisonneuve fx
- Get a full tib/fib to look for proximal fibular fx (energy transfer proximally through syndesmosis)
Casanova or Lover’s fx?
Association?
- Fx of the body of the calcaneus (lover jumps out window)
- If bilateral, search for T/L spine fx
Acute flat foot…
- What was injured?
- What gets hit next?
- Posterior tibialis tendon (behind medial malleolus)
- Spring ligament
MRI findings of sinus tarsi syndrome?
Loss of fat signal
“Boomerang” sign = injury to what tendon behind the lateral malleolus?
Split tear of peroneus BREVIS
- Brevis is closer to lat malleolus (“shorter” distance to lat mal)
Little leaguer’s shoulder?
Salter-Harris type 1 fx proximal humerus
- Chronic injury, look for periosteal rxn
- Growth plate looks funny, upside down V… don’t try calling it a Salter 2
