2. MSK High Yield Flashcards
Muscle involved in Avulsion # @ Iliac Crest
Abdominal Muscles
Muscle involved in Avulsion # @ ASIS
Sartorius
Muscle involved in Avulsion # @ AIIS
Rectus Femoris
Muscle involved in Avulsion # @ Greater trochanter
Gluteal muscles
Muscle involved in Avulsion # @ Lesser trochanter
Iliopsoas
Muscle involved in Avulsion # @ Ischial tuberosity
Hamstrings
Muscle involved in Avulsion # @ pubic symphysis
Adductor group
Fracture of radial head & anterior dislocation of distal radio-ulnar joint
Essex Lopresti #
Radial shaft # with anterior dislocation of ulna at distal radio-ulnar joint
Galeazzi Fracture
Proximal ulnar # with anterior dislocation of radial head
Monteggia Fracture
Bankart Spectrum (4 stages)
GLAD: Superficial partial labral injury with cartilage tear. Stable
Perthes: Avulsed anterior labrum (only minimal displacement). Inferior GH complex still attached to periosteum. Intact periostium
ALPSA: Similar to Perthes, but medially displaced, “bunched up” inferior GH complex. Intact periostium.
True Bankart: Torn labrum, periostium distupted.
Bony Bankart: Anterior, inferior glenoid fracture.
Superficial partial labral injury with cartilage tear. Periostium intact
GLAD shoulder
Avulsed anterior labrum, minimally displaced. Intact inferior GH complex and periostium
Perthes shoulder
Avulsed anterior labrum. “bunched up” and medially displaced inferior GH complex. Intact periostium
ALPSA
Torn labrum and GH ligament. Periostium disrupted.
Bankart lesion (cartilaginous)
Fractured anterior glenoid rim
Bony Bankart
Capitulum # associated with
Posterior elbow dislocation
Chondroblastoma in adult associated with
Clear Cell Chondrosarcoma
Malignant epiphyseal lesion associated with
Clear Cell Chondrosarcoma
Permeative lesion in the diaphysis of a child
Ewings sarcoma
T2 bright lesion in the sacrum
Chordoma
Lytic T2 dark lesion
Fibrosarcoma
Sarcomatous transformation of an infarct
MFH (malignant fibrous histiocytoma)
Epiphyseal lesion that is NOT T2 bright
Chondroblastoma
Short 4th metacarpal
Pseudopseudohypoparathyroidism and Turners Syndrome
Band like acro-osteolysis
Hajdu-Cheney
Fat containing tumour in the retroperitoneum
Liposarcoma
Sarcoma in the foot
Synovial Sarcoma
Avulsion of the lesser trochanter
Pathological fracture
Crossover sign
Pincer type FAI (Femoro-Acetabular Impingement)
Segond fracture (what is it? Associated with?)
(lateral tibial plateau #) ACL tear
Deep intercondylar notch
ACL tear
ACL tear (2)
Deep intercondylar notch
Segond # (Lateral tibial plateau avulsion #)
Reverse segond #
Medial tibial plateau avulsion #, PCL tear
Arcuate sign
PCL tear
Fibular head avulsion
PCL tear (3)
Reverse Segond #
Arcuate sign
Fibular head avulsion
Bilateral Patellar Tendon Ruptures
Chronic steroid use
Wide ankle mortise
Look for proximal fibula (Maisonneuve #)
Bilateral calcaneal #
Look for spinal compression fracture (Lover’s leap)
Dancer with lateral foot pain
Avulsion of 5th MT
Old lady with sudden knee pain with standing
SONK (Spontaneous OsteoNecrosis of the Knee)
Looser’s zones associated with
Osteomalacia or Rickett’s (low vit D)
Unilateral RA with preserved joint spaces
RSD (Reflex Sympathetic Dystrophy)
T2 bright tumour in finger
Glomus tumour
Blooming in tumour in finger
Giant Cell Tumour of Tendon Sheath (PVNS)
Atrophy of teres minor
Quadrilateral space syndrome
Subluxation of biceps tendon
Subscapularis tear
Too many bow ties
Discoid meniscus
Celery stalk ACL - T2
Mucoid degeneration
Drumstick ACL - T1
Mucoid degeneration
Acute flat foot
Posterior tibial tendon tear
Boomerang shaped peroneus brevis
Tear or split tear (peroneus brevis)
Meniscoid mass in the lateral gutter of the ankle
Anteriolateral Impingement Syndrome
Scar between 3rd and 4th metatarsals
Morton’s neuroma
Osteomyelitis in the spine
IV drug user
Osteomyelitis in the spine with kyphosis
TB (Gibbus deformity)
TB (Gibbus deformity)
Osteomyelitis in the spine with kyphosis
Unilateral SI joint lysis
IV drug user
Psoas muscle abscess
TB
Rice bodies in joint
TB (sloughed synovium)
Calcification along the periphery
Myositis ossificans
Calcifications more dense in the centre
Osteosarcoma (reverse zoning)
Premeative lesion in the diaphysis of a child
Ewings
Long lesion in a long bone
Fibrous dysplasia
Large amount of oedema for size of lesion
Osteoid osteoma
Cystic bone lesion, NOT T2 Bright
Chondroblastoma
Lesion in finger of child
Periosteal chondroma
looks like NOF (Non-ossifying fibroma) in anterior tibia with anterior bowing
Osteofibrous dysplasia
RA + Pneumoconiosis
Caplan syndrome
RA + Big Spleen + Neutropenia
Felty syndrome
Reducible deformity of joints in hand
Lupus
Destructive mass in a bone of leukaemia pt
Chloroma
First sign of SLAC or SNAC wrist
Arthritis of the radioscaphoid compartment
SLAC wrist associated with
DISI deformity
Cause of dorsolateral dislocation in Bennett fracture
Pull of Abductor Pollucis Longus Tendon
Carpal Tunnel syndrome associated with
Dialysis
Risk of AVN from #NOF depends on…
Degree of femoral head displacement
Part of scaphoid at risk of AVN following fracture
Proximal pole
Commonest cause of sacral insufficiency fracture (old lady)
Osteoporosis
Commonest direction of patellar dislocation
Lateral (almost always)
Commonest tibial plateau fracture
Lateral
SONK favours which part of knee
Medial (most weight bearing)
Normal SI joints excludes
Ankylosing Spondylitis
Looser’s Zones are a type of…
Insufficiency fracture
Scoring system (& score needed) for Osteoporosis
T score (<-2.5)
Isolated 1st extensor compartment tenosynovitis
de Quervain’s
1st and 2nd extensor compartment tenosynovitis
Intersection syndrome
6th extensor compartment tenosynovitis
Early RA
Flexor Pollicis and Carpal Tunnel
Flexor Pollicis Longus goes through carpal tunnel.
Flexor Pollicis Brevis DOES NOT
Which 2 spaces in the wrist usually communicate
Pisiform recess and radiocarpal joint
Absent anterior/superior labrum + thickened middle glenohumeral ligament
Bulford complex
Thickest part of medial meniscus
Posterior
Most commonly torn ankle ligament
Anterior talofibular ligament
TB in the spine
Spares disc space (so can brucellosis)
Scoliosis curvature and osteoid osteoma
Scoliosis curves away from the osteoid osteoma
Only benign skeletal tumour associated with radiation
Osteochondroma
Osteochondroma (trivia)
Only benign skeletal tumour associated with radiation
Ix for Mixed Connective Tissue Disease
Requires serology for Dx (Ribonucleoprotein)
Medullary bone infarct
Will have fat in the middle
Bucket handle meniscal tears are…
…longitudinal tears