prelegere osteoarticular en

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    OSTEO-ARTICULAR SYSTEM

    Bony structure

    Gross section

    photographic image of

    proximal part of the

    femur

    X-ray image of thesame gross section

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    OSTEO-ARTICULAR SYSTEM

    Distribution of lines offorce in the region of

    femoral neck

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    Defnition:

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    Classifcation o racture:

    Complete

    By mechanism;

    By number

    By direction of fractures line

    Incomplete

    By mechanism;

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    Types o racture: bymechanism

    Force fracture

    Stress fracture

    Direct fracture Indirect fracture

    Gunshot fracture

    Pathological fracture

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    Gunshot racture

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    Uncommonfractures

    Stress and pathologic

    etiologies

    Presentationmaterialforeducationalpurposesonly.Allrightsreserved.1999URMCRadiology. 13/30

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    Types o racture: bynumber:

    Uniue

    !ultiple

    Communited Concurrent

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    Unique (simple) racture

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    Multiple racture = morethan one line o racture

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    Concurrentracture

    omp ete racture

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    omp ete ractureTypes o racture: by

    irection

    OSTEO ARTIC!AR S"STE#

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    OSTEO-ARTIC!AR S"STE#

    Symptom of fracture $ line of fracture

    a% Trans&ersal ' (% T-shape( )% O)lic ' e% *-shape( c% !ongitu(inal

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    !ma"in" semiolo"y oractures:

    Fractures tra"ectory

    Displacement of fractured fragments

    OSTEO-ARTIC!AR S"STE#

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    OSTEO ARTIC!AR S"STE#

    Symptom of fracture $ (isplacement of fragments

    a% !ateral ' (% !ongitu(inal )y

    )% !ongitu(inal )y interloc+ing sli(ing ' e% Angular

    c% !ongitu(inal ,ith ' f% Rotation

    elongate( extremity

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    #racture $% &s CT

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    Manible #racture

    !andible fractures are due to direct trauma# !ost are comminuted

    and typically in$ol$e both sides of the mandible

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    'pine #ractures

    %bliue fracture of a lo&er cer$ical

    spinous process'

    commonly C(#

    It results from hyperfle)ion' commonly from

    sho$eling sno

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    Compression #racture

    Compression fractures of the spine are

    common in elderly and osteoporotic

    patients# *hey result from anterior or

    lateral fle)ion# *he typical appearance

    is loss of height of the anterior aspect

    of the $ertebral body &ith preser$ation

    of the posterior elements and generally

    the posterior aspect of the $ertebral body#

    #

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    *umerus

    Pathologic fractures result from an

    underlying abnormality of the bone'

    usually either from a primary bone

    tumor or from metastatic disease#

    +o&e$er' pathologic fractures may

    result from metabolic conditions as&ell# , pathologic fracture results

    &hen normal stress is placed onto

    abnormal bone#

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    Greenstic+ #racture

    *he greenstic- fracture results from

    direct trauma# *here is an incomplete

    fracture of a long bone .radius or ulna/

    &ith cortical disruption on one side and

    deformity on the other' resulting in

    bo&ing of the bone#

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    ,o%er-s #racture

    So named because of the common

    occurrence in pri0efighters' the

    fracture in$ol$es the distal

    metacarpal nec-' usually of digit

    fi$e# *he distal fracture fragment

    is $olarly angulated and may be

    e)ternally rotated# *he in"ury

    results from direct trauma to the

    hand#

    OSTEO-ARTICULAR SYSTEM

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    Radiograph of the femur

    Shortening of the bone

    by sliding of thefragments

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    I i i l f l ti

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    Imaging semiology of luxation(dislocation

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    Posterior

    elbo&

    Dislocations

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    OSTEO-ARTICULAR SYSTEM

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    Radiograph of the

    elbow

    Changes in correlationof articular surfaces

    (displacement

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    !maging diagnosis of osteoarticular

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    pathology

    1

    Changes in shape an( (imensions% Bone atrophy . hypertrophy

    /% Bone inflation

    0% Bone (eformation1 Changes of structure

    % Osteoporosis/% Osteosclerosis

    0% 1estruction

    2% Osteonecrosis

    3% Osteolysis1 Changes in periosteum

    % 4eriostosis

    /% periostitis1 Changes in soft tissues

    C!anges in s!a"e and dimensions

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    g "

    "ony deformity

    #rched $ #ngular $ S%shaped

    OSTEO-ARTICULAR SYSTEM

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    "one atrophy &ccentric $ Concentric

    OSTEO-ARTICULAR SYSTEM

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    Radiograph of the leg "one atrophy by

    compression

    OSTEO-ARTICULAR SYSTEM

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    '%ray of the femur

    "lown bone (bone

    inflation

    Changes of the contours

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    '%ray of thefemur

    hickening of thebone

    (hyperostosis=hypertrophya) *niform

    b) *nilateral

    Changes of the contours

    OSTEO-ARTIC!AR S"STE#

    Ch f t t

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    +steoporosis

    ,ormal

    Spongiose bone

    Compact bone

    Changes of structure

    OSTEO-ARTICULAR SYSTEM

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    '%ray of lumbar part of spine

    OSTEO-ARTICULAR SYSTEM

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    '%ray of the knee

    -ypertrophic

    osteoporosis

    An+ilosis

    OSTEO-ARTIC!AR S"STE#

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    +steosclerosis

    ,ormal

    Spongiose bone

    Compact bone

    ' f h l + l i

    OSTEO-ARTIC!AR S"STE#

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    '%ray of the leg) +steosclerosis)

    .ocal sclerosis $ Diffuse sclerosis

    OSTEO-ARTICULAR SYSTEM

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    '%ray of the femur

    +steodestruction in

    osteomyelitis

    OSTEO-ARTICULAR SYSTEM

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    '%ray of the foot

    +steodestruction in tuberculosis osteitis

    OSTEO-ARTICULAR SYSTEM

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