Download - DISEASES OF THE MUSCULOSKELETAL SYSTEM
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“In the depth of winter, I finally realized that within me there lay an invincible summer.”
-Albert Camus
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DISEASES OF THE MUSCULOSKELETAL
SYSTEMPART 4
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LEGG-CALVE-PERTHES DISEASE
YOUNG, SMALL BREEED DOGS
http://www.youtube.com/watch?v=72g79wwxLVg
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LEGG-CALVE-PERTHES DISEASE
May also be considered a Developmental disorder
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LEGG-CALVE-PERTHES DISEASE: TREATMENT
FEMORAL HEAD AND NECK EXCISION
FHNE
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DEGENERATIVE DISORDERS: OSTEOCHONDRITIS DISSECANS
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OSTEOCHONDRITIS DISSECANS
FAILURE OF THE LOWER LAYERS OF ARTICULAR CARTILAGE TO MATURE INTOBONE RESULTS IN THICKENED CARTILAGE THAT IS PRONE TO INJURY
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OSTEOCHONDRITIS DISSECANS
CARTILAGE FLAP OF THE SCAPULOHUMERALJOINT WHICH IS THE MOST COMMON LOCATION
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OSTEOCHONDRITIS DISSECANS
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OSTEOCHONDRITIS DISSECANS
CARTILAGE FLAP IN THE STIFLE JOINT
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OSTEOCHONDRITIS DISSECANS
http://www.youtube.com/watch?v=_bJqjqh5a2A
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INFLAMMATORY CONDITIONS: PANOSTEITIS
LARGE, MEDIUM BREEDS AT A YOUNG AGE 6-18 MONTHS
CAUSE: UNKNOWN, BUT THERE ARE MANY SUSPECTED CONTRIBUTORS
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PANOSTEITIS1. PELVIS2. LESIONS OF PANOSTEITIS3. FEMUR
INFLAMMATION IN THE MARROW CAVITIES OF LONG BONES THAT LEADSTO PAIN, LAMENESS, AND FEVER
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PANOSTEITISINCREASED MEDULLARY OPACITY
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PANOSTEITIS
TREATMENT OF PANOSTEITIS INCLUDESNSAIDS AND CAGE REST
THIS DISEASE IS SELF-LIMITING AND HAS A GOOD PROGNOSIS!
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LUXATIONS
HX OF TRAUMA, ACUTE LAMENESS, NON WEIGHT BEARING, POSSIBLESWELLING OVER THE HIP
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LUXATIONS
CRANIODORSAL LUXATION IS THEMOST COMMON TYPE
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LUXATIONS
THE EHMER SLING IS USED AFTER CLOSED REDUCTION OF THE LUXATEDHIP JOINT; THE DOG SHOULD BE CONFINED FOR 7-10 DAYS
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I live each day as if it were my last; which is why I don’t have any clean laundry because who wants to be doing laundry on their last day of life!!”
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LUXATIONS
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TUMORS OF THE BONE
MOST COMMON IN LARGE BREEDMALE DOGS OLDER THAN 7 YRS OFAGE
THE DISTAL RADIUS IS THE MOSTCOMMON LOCATION
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TUMORS OF THE BONE
85%-90% OF BONE CANCER IN DOGS IS OSTEOSARCOMA
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TUMORS OF THE BONE
OSTEOSARCOMA TENDS TO OCCUR AWAY FROMTHE ELBOW AND TOWARDS THE KNEE
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TUMORS OF THE BONE
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TUMORS OF THE BONE
METASTASIS OF OSTEOSARCOMA TO THE LUNGS; THERE IS USUALLY ALREADY SOME MICROSCOPIC SREAD OF TUMOR BY THE TIME IT IS DIAGNOSED
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TUMORS OF THE BONE
AMPUTATION OF THE AFFECTED LIMBALONG WITH CHEMOTHERAPY IS A COMMON TREATMENT PLAN
SURVIVAL TIME IS ~12 MONTHS EVEN WITH AGGRESSIVE THERAPY
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MYOPATHIES: POLYMYOSITIS
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MYOPATHIES: POLYMYOSITIS
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MYOPATHIES: MASTICATORY MUSCLE MYOSITIS (aka atrophic myositis, eosinophilic myositis)
CLINICAL SIGNS INCLUDE ELEVATED 3RD EYELIDS, ATROPHY OF THE JAW MUSCLES, AND INABILITY TO OPEN THE MOUTH (TRISMUS)
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MYOPATHIES: FELINE POLYMYOPATHY
CERVICAL VENTROFLEXION OF THE NECK 2° TO HYPOKALEMIA