MSK 2 RADIOLOGY

MSK 2 RADIOLOGY

  Shoulder:

¾  Shoulder dislocation

¾  Rotator cuff tear

¾  Calcific tendinitis

correct

  Shoulder:

  Shoulder:

¾  Shoulder dislocation

¾  Rotator cuff tear

¾  Calcific tendinitis

Elbow:

¾  Radial head fracture

¾  Ulnar fractures

Wrist:

¾  Colles fracture

¾  Scaphoid fracture

Hip

¾  Fractures of the proximal femur femoral head or neck

corect

Hip

Hip

¾  Fractures of the proximal femur femoral head or neck

  Knee:

¾  Baker's cyst

¾  Meniscal tear

¾  ACL tear

correct

  Knee:

  Knee:

¾  Baker's cyst

¾  Meniscal tear

¾  ACL tear

shoulder dislocation:
Dislocation of the glenohumeral joint

1- Anterior dislocation ( most common 95%)

2-Posterior dislocation (less common 5%)

correct

what is most common shoulder dislocation?.

shoulder dislocation:
Dislocation of the glenohumeral joint

1- Anterior dislocation ( most common 95%)

2-Posterior dislocation (less common 5%)

shoulder dislocation:
Dislocation of the ___________ joint

1- ________ dislocation ( most common 95%)

2-________ dislocation (less common 5%)

shoulder dislocation:
Dislocation of the glenohumeral joint

1- Anterior dislocation ( most common 95%)

2-Posterior dislocation (less common 5%)

Rotator cuff inserts into anatomic neck & tuberosities of humerus consists of 4 muscles:

- Supraspinatus —> most common

- infraspinatus/

- teres minor/

- subscapularis

-Causes: Degeneration,trauma

correct

Rotator cuff inserts into anatomic ______ & __________of humerus consists of 4 muscles:

-Causes: Degeneration,trauma

Rotator cuff inserts into anatomic neck & tuberosities of humerus consists of 4 muscles:

- Supraspinatus —> most common

- infraspinatus/

- teres minor/

- subscapularis

-Causes: Degeneration,trauma

Rotator cuff inserts into anatomic neck & tuberosities of _________ consists of 4 muscles:

- ____________________—> most common

- infraspinatus/

- teres minor/

- subscapularis

-Causes:

Rotator cuff inserts into anatomic neck & tuberosities of humerus consists of 4 muscles:

- Supraspinatus —> most common

- infraspinatus/

- teres minor/

- subscapularis

-Causes: Degeneration,trauma

Rotator cuff inserts into anatomic _____ & ___________ of humerus

Rotator cuff inserts into anatomic neck & tuberosities of humerus

most common tear of rotator cuff is?

supraspinatus

Supraspinatus tendinitis with calcification

most common tear in rotator cuff

2) elbow
radial head fractures:
—> positive posterior fat pad

• fluid + fats on posterior part as effusion

correct

) elbow
radial head fractures:
—> positive ________ fat pad

• fluid + fats on ________part as effusion

) elbow
radial head fractures:
—> positive posterior fat pad

• fluid + fats on posterior part as effusion

) elbow
radial head fractures:
—> positive posterior fat pad

• fluid + fats on posterior part as effusion

) elbow
radial head fractures:
—> positive posterior fat pad

• fluid + fats on posterior part as effusion

Ulnar  fractures

Isolatedulnarfracturesareuncommon.

correct

Ulnar  fractures

Isolated ulnar fractures are uncommon.

• Combined radius-ulna fractures and dislocation

• - Monteggia fracture-dislocation

•  Ulnar shaft fracture and radial head dislocation

Ulnar  fractures

¾Isolatedulnarfracturesareuncommon.

Ulnar  fractures

Ulnar  fractures

Isolated ulnar fractures are uncommon.

• Combined radius-ulna fractures and dislocation

• - Monteggia fracture-dislocation

• Ulnar shaft fracture and radial head dislocation

MUGR=Mugger

1st two letters are —> proximal 
2nd two letters are = distal

corrcct

MUGR=Mugger

MUGR=Mugger

1st two letters are —> proximal 
2nd two letters are = distal

MUGR=Mugger

1st two letters are —> proximal 
2nd two letters are = distal

Muntagia ulnar 
gelazzi radius

corrct

MUGR=Mugger

1st two letters are —> ____
2nd two letters are = _____

MUGR=Mugger

1st two letters are —> proximal 
2nd two letters are = distal

Muntagia ulnar 
gelazzi radius

MONTAGIA FRACTURES

ULNAR PROXIMAL

Gelazzi fracture

distal radius

proximal radioulnar dislocation

MU

Montagia ulnar

distal radioulnar dislocation

GR

Gelazzi radius

Galeazzi fracture-dislocation

Distal radial shaft fracture and
distal radioulnar dislocation

correct

Galeazzi fracture-dislocation

Galeazzi fracture-dislocation

Distal radial shaft fracture and
distal radioulnar dislocation

colles fracture found in?

wrist

scaphoid fracture in ?

wrist

Colles fracture

• -Fall on the outstreched hand with the forearm

pronated in dorsiflexion.

• Most common injury to distal forearm.

corrctr

Colles fracture

• _____________  hand with the forearm

_______ in ___________ .

• Most common injury to _________forearm.

Colles fracture

• -Fall on the outstreched hand with the forearm

pronated in dorsiflexion.

• Most common injury to distal forearm.

Colles fracture

• -Fall on ??????? with the forearm ?????

• Most common injury to __________ forearm.

Colles fracture

• -Fall on the outstreched hand with the forearm

pronated in dorsiflexion.

• Most common injury to distal forearm.

Colles fracture??

Colles fracture

• -Fall on the outstreched hand with the forearm

pronated in dorsiflexion.

• Most common injury to distal forearm.

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist 70%

20% Proximal pole

High incidence of non union or AVN ( avascular necrosis )

Pain in snuff box

correct

Scaphoid fracture

how does it happen?

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist 70%

20% Proximal pole

High incidence of non union or AVN ( avascular necrosis )

Pain in snuff box

Scaphoid fracture

in what age?

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist 70%

20% Proximal pole

High incidence of non union or AVN ( avascular necrosis )

Pain in snuff box

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist ____%

______% Proximal pole

High incidence of non union or AVN ( avascular necrosis )

Pain in snuff box

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist 70%

20% Proximal pole

High incidence of non union or AVN ( avascular necrosis )

Pain in snuff box

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist 70%

20% Proximal pole

High incidence of?????

Pain in snuff box

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist 70%

20% Proximal pole

High incidence of non union or AVN ( avascular necrosis )

Pain in snuff box

avascular necrosis in which fracture?

Scaphoid fracture

Very common due to fall on outstretched hand in young adults

Waist 70%

20% Proximal pole

High incidence of non union or AVN ( avascular necrosis )

Pain in snuff box

Fractures of the proximal femur Femoral head or neck:

correct

Fractures of the proximal femur Femoral head or neck

Fractures of the proximal femur Femoral head or neck

Baker cyst

in knee

Their  main functions are shock absorption and load–bearing.:
- Crescent shaped fibro-cartilage .

correct

function of Crescent shaped fibro-cartilage .?

Their  main functions are shock absorption and load–bearing.:
- Crescent shaped fibro-cartilage .

Knee injury :

Meniscal injuries

Medial meniscus injury is more common

right

Knee injury :

Meniscal injuries

_________meniscus injury is more common

Knee injury :

Meniscal injuries

Medial meniscus injury is more common

Cruciate ligament tears:

Cruciate ligament tears:

The anterior Cruciate ligament tears are more

common than posterior Cruciate ligament

tears and associated with other injuries.

correct

Cruciate ligament tears:

Cruciate ligament tears:

The _________ Cruciate ligament tears are more

common than _______  Cruciate ligament

tears and associated with other injuries.

Cruciate ligament tears:

Cruciate ligament tears:

The anterior Cruciate ligament tears are more

common than posterior Cruciate ligament

tears and associated with other injuries.

which ACL is more common?

Cruciate ligament tears:

Cruciate ligament tears:

The anterior Cruciate ligament tears are more

common than posterior Cruciate ligament

tears and associated with other injuries.

cruciate ligament?
Radiographic features:

Plain film may show avulsion fragment of intercondylar eminence.

-MRI is study of choice.

right

cruciate ligament?
Radiographic features:

diagnosis?

cruciate ligament?
Radiographic features:

Plain film may show avulsion fragment of intercondylar eminence.

-MRI is study of choice.

Miscellaneous bone pathology by disease:
Neoplastic:

1-  Benign

  Osteoid osteoma

2-  Malignant

  Osteosarcoma

  Metastasusis

---

Infectious:

  Acute osteomyelitis

  Septic arthritis

coreect

Miscellaneous bone pathology by disease:
Neoplastic:

1-  Benign

____________

2-  Malignant

  

  

Miscellaneous bone pathology by disease:
Neoplastic:

1-  Benign

  Osteoid osteoma

2-  Malignant

  Osteosarcoma

  Metastasusis

---

Infectious:

  

---

Infectious:

  Acute osteomyelitis

  Septic arthritis

Bone tumors:
Osteoid osteoma

Age:5-25 years

 Common sites femur & tibia

 Pain especially at night improved with aspirin

 Radiolucent nidus, surrounded by sclerosis

 CT is study of choice

 Bone scan hot spot

 MRI extensive edema

correct

Bone tumors:
Osteoid osteoma

Age: ??

Common sites ????

Pain especially at ____ improved with _____

Bone tumors:
Osteoid osteoma

Age:5-25 years

Common sites femur & tibia

Pain especially at night improved with aspirin

Radiolucent nidus, surrounded by sclerosis

CT is study of choice

Bone scan hot spot

MRI extensive edema

Bone tumors:
Osteoid osteoma

Age:5-25 years

Common sites femur & tibia

Pain especially at night improved with aspirin

Radiolucent nidus, surrounded by sclerosis

CT is study of choice

Bone scan hot spot

MRI extensive edema

Bone tumors:
Osteoid osteoma

Age:5-25 years

Common sites femur & tibia

Pain especially at night improved with aspirin

Radiolucent nidus, surrounded by sclerosis

CT is study of choice

Bone scan hot spot

MRI extensive edema

osteoid osteoma

sites?
pain when? improved with?

Bone tumors:
Osteoid osteoma

Age:5-25 years

Common sites femur & tibia

Pain especially at night improved with aspirin

Radiolucent nidus, surrounded by sclerosis

CT is study of choice

Bone scan hot spot

MRI extensive edema

osteoid osteoma ?
nidus is?

how to diagnose? 
Bone spot ?

Radiolucent nidus, surrounded by sclerosis

CT is study of choice

Bone scan hot spot

MRI extensive edema

what to see in osteoid osteoma ?

Radiolucent nidus, surrounded by sclerosis

Osteosarcoma

-  Age: 10-30 years / elderly follwing malignant

changes in paget's disease

-  Location: tubular bones 80%

-  Radiographic features:

-  Poorly defined, intramedullary, metaphyseal

mass.

-  Aggressive periosteal reaction( codman triangle)

-  Diagnosis by plain films

-  CT for evaluation of matrix,cortical penetration

-  MRI for staging

correct

age of osteosarcome?

Osteosarcoma

-  Age: 10-30 years / elderly follwing malignant

changes in paget's disease

-  Location: tubular bones 80%

-  Radiographic features:

-  Poorly defined, intramedullary, metaphyseal

mass.

-  Aggressive periosteal reaction( codman triangle)

-  Diagnosis by plain films

-  CT for evaluation of matrix,cortical penetration

-  MRI for staging

when does the osteosarcoma occurs in elderly?

Osteosarcoma

-  Age: 10-30 years / elderly follwing malignant

changes in paget's disease

-  Location: tubular bones 80%

-  Radiographic features:

-  Poorly defined, intramedullary, metaphyseal

mass.

-  Aggressive periosteal reaction( codman triangle)

-  Diagnosis by plain films

-  CT for evaluation of matrix,cortical penetration

-  MRI for staging

location of osteosarcoma?

Osteosarcoma

-  Age: 10-30 years / elderly follwing malignant

changes in paget's disease

-  Location: tubular bones 80%

-  Radiographic features:

-  Poorly defined, intramedullary, metaphyseal

mass.

-  Aggressive periosteal reaction( codman triangle)

-  Diagnosis by plain films

-  CT for evaluation of matrix,cortical penetration

-  MRI for staging

location of osteosarcoma?

Osteosarcoma

-  Age: 10-30 years / elderly follwing malignant

changes in paget's disease

-  Location: tubular bones 80%

-  Radiographic features:

-  Poorly defined, intramedullary, metaphyseal

mass.

-  Aggressive periosteal reaction( codman triangle)

-  Diagnosis by plain films

-  CT for evaluation of matrix,cortical penetration

-  MRI for staging

how to diagnose osteosarcoma?
demarcation?
where occurs?
physeal?
intermedullar?

Osteosarcoma

-  Age: 10-30 years / elderly follwing malignant

changes in paget's disease

-  Location: tubular bones 80%

-  Radiographic features:

-  Poorly defined, intramedullary, metaphyseal

mass.

-  Aggressive periosteal reaction( codman triangle)

-  Diagnosis by plain films

-  CT for evaluation of matrix,cortical penetration

-  MRI for staging

codman triangle occurs where?

-  Aggressive periosteal reaction( codman triangle)

poristeal reaction aggressive?

-  Aggressive periosteal reaction( codman triangle)

in osteosarcoma

diagnosis osteosarcoma ?

-  CT for evaluation of matrix,cortical penetration

-  MRI for staging

Metastases:

- By Hematogenous spread, direct extension or lymphatic (rare)

- Lytic, sclerotic, or mixed

- Pathologic fractures are common.

correc

Metastases:

- By __________spread, direct _____or ____________(rare)

- Lytic, sclerotic, or mixed

- Pathologic fractures are common.

Metastases:

- By Hematogenous spread, direct extension or lymphatic (rare)

- Lytic, sclerotic, or mixed

- Pathologic fractures are common.

Acute osteomylitis

  Blood -borne

  Staphylococcus

  Infants & children.

  Initial radiographs are normal

  Affect metaphysis of long bones

 Plain Xray findings:

  Soft tissue swelling/ bone destruction with periosteal reaction  & then form involucrum in 3 weeks.

  Investigation of choice

Bone scan & MRI

correct

Acute osteomylitis
age?
pathogens?
affect what bones?

Acute osteomylitis

  Blood -borne

  Staphylococcus

  Infants & children.

  Initial radiographs are normal

  Affect metaphysis of long bones

diagnosis of acute osteomylitis?

Plain Xray findings:

  Soft tissue swelling/ bone destruction with periosteal reaction  & then form involucrum in 3 weeks.

  Investigation of choice

Bone scan & MRI

Plain Xray findings:

  Soft tissue swelling/ bone destruction with _________ reaction  & then form _________ in ___ weeks.

  Investigation of choice

Bone scan & MRI

Plain Xray findings:

  Soft tissue swelling/ bone destruction with periosteal reaction  & then form involucrum in 3 weeks.

  Investigation of choice

Bone scan & MRI

infectious arthritis ( fever + pain in joints )

Plain film:

Joint effusion

Juxtaarticular osteoporosis

Destruction of subchondral bone,which is rapid

MRI:

Sensitive in detecting early cartilage damage

correct

infectious arthritis ( fever + pain in joints )?

Plain film:

Joint effusion

Juxtaarticular osteoporosis

Destruction of subchondral bone,which is rapid

?

infectious arthritis ( fever + pain in joints )?

MRI in infectious arthritis?

Sensitive in detecting early cartilage damage