Sys Path - Bone/joint Glossary Of Terms

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Osteopathy/Chondropathy

Back 1

general term for bone disorder

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Dysplasia/Dystrophy

Back 2

abnormal growth/development of bone

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Osteochondrosis (Osteochondritis)

Back 3

NOT INFLAMMATORY; growth cartilage dysplasia related to failure or delay of endochondronal ossification in young animals

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Osteochondritis dissecans

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osteochondrosis involving articular cartilage with formation of cartilage/osteochondral clefting and flap formation

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Sequestrum

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necrotic fragment of bone that persists in damaged (infected) bone tissue

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Involucrum

Back 6

reactive bone enclosing a bone sequestrum

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Hypertrophic Osteodystrophy

Back 7

inflammatory disease of young large and giant breed dog, unknown cause

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Osteosclerosis

Back 8

reactive process causing increased bone density

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Osteopetrosis

Back 9

abnormal growth/development; congenital/inherited - failure of osteoclastic absorption of bone leading to progressive increase in bone density

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callus

Back 10

associated with healing fractures

Front 11

Osteopathy/Chondropathy

Back 11

general term for bone disorder

Front 12

Dysplasia/Dystrophy

Back 12

abnormal growth/development of bone

Front 13

Osteochondrosis (Osteochondritis)

Back 13

NOT INFLAMMATORY; growth cartilage dysplasia related to failure or delay of endochondronal ossification in young animals

Front 14

Osteochondritis dissecans

Back 14

osteochondrosis involving articular cartilage with formation of cartilage/osteochondral clefting and flap formation

Front 15

Sequestrum

Back 15

necrotic fragment of bone that persists in damaged (infected) bone tissue

Front 16

Involucrum

Back 16

reactive bone enclosing a bone sequestrum

Front 17

Hypertrophic Osteodystrophy

Back 17

inflammatory disease of young large and giant breed dog, unknown cause

Front 18

Osteosclerosis

Back 18

reactive process causing increased bone density

Front 19

Osteopetrosis

Back 19

abnormal growth/development; congenital/inherited - failure of osteoclastic absorption of bone leading to progressive increase in bone density

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callus

Back 20

associated with healing fractures

Front 21

Osteoproductive

Back 21

most often used in association with bone tumors and seen with radiographs or other imaging procedures

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Hypertrophic (pulmonary) Osteopathy

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most often seen with infections or space-occupying lesions within the thorax

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Panosteitis

Back 23

NOT INFLAMMATORY - cause unknown - increased bone density in medullary cavity of young, usually large breed, dogs

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Osteoma/Osteosarcoma

Back 24

bone tumors

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Chondroma/Chondrosarcoma

Back 25

cartilage tumors

Front 26

Osteoarthrits/Degenerative Joint Disease

Back 26

primary joint disease, often associated with development of bony exostoses

Front 27

Osteophyte

Back 27

abnormal growth of bone, joint associated, also called "bone spure" and "exostosis"

Front 28

Exostosis

Back 28

(pl: exostoses) formation of new bone on surface of a bone

Front 29

Spondylosis

Back 29

bony proliferation of vertebral bone - degenerative

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Osseous Metaplasia

Back 30

ossification of soft tissue

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Osteomalacia

Back 31

softening of bone from lack of mineralization

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Osteonecrosis

Back 32

softening of bone from necrosis

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Osteopenia/Osteoporosis

Back 33

reduced bone mass

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Osteogenesis Imperfecta

Back 34

congenital defect leading to reduced bone mass

Front 35

Osteolysis

Back 35

most often used associated with tumor or infection

Front 36

Osteomyelitis

Back 36

involves medullary cavity (myel = marrow) - osteitis/chondritis/periostiostitis occur but are uncommon

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Aseptic Necrosis of Femoral Head

Back 37

common in young small breed dogs

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Bone cysts

Back 38

subchondral, simple, or aneurismal

Front 39

Epiphysitis

Back 39

lesion of physis, usually dysplastic rather than inflammatory (common in young, growing horses)

Front 40

Arthrogryposis

Back 40

congenital joint contracture, often related to nervous system or neuromuscular system

Front 41

Synovitis/Arthritis/Osteoarthritis/DJD

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primary disorders of the joint, can have secondary bone involvement

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Chondromalacia

Back 42

softened cartilage

Front 43

Joint Erosion

Back 43

loss of superficial cartilage layers of a joint

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Joint Ulceration

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full thickness loss of cartilage layers

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Joint Mouse

Back 45

free floating intra-articular cartilage/bone - most often associated with osteochondrosis dissecans

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Fibrillation

Back 46

cartilage changes within articular cartilage associated with DJD

Front 47

Eburnation

Back 47

smooth surface osteosclerosis of subchondral bone - associated with ulceration of overlying cartilage

Front 48

Crystal Deposition Disease

Back 48

most commonly urates = gout (humans, birds, reptiles)

Front 49

Pannus

Back 49

fibrovascular tissue arising from synovium spreading to articular surfaces forming a "velvety" membrane and causing extensive cartilage lysis