Osteochondritis

Inflammation of bone and cartilage.

• o. dissecans (OCD) — osteochondritis resulting in the splitting off of a piece of articular cartilage due to fissure formation in an area of dysplastic subarticular cartilage so that it forms a flap or separates completely and falls into the joint space (‘joint mouse’); occurs most commonly on the head of the humerus and distal condyles of the femur in dogs and pigs. Is a manifestation of osteochondrosis.

Osteochondritis
Classification and external resources
ICD-10	M93.9
ICD-9	732.9
DiseasesDB	9320
eMedicine	/
MeSH	[1]

Osteochondritis is a painful condition where the cartilage and bone in a joint is inflamed.^[1]

It often refers to osteochondritis dissecans (sometimes spelled dessecans, and abbreviated OCD). The term dissecans refers to the "creation of a flap of cartilage that further dissects away from its underlying subchondral attachments (dissecans)".^[2]

Another type of osteochondritis is Scheuermann's disease,^[3] which affects the spine.

References

1. ^ Osteochondritis at Dorland's Medical Dictionary
2. ^ http://cal.vet.upenn.edu/saortho/chapter_84/84mast.htm
3. ^ MeSH Scheuermann's+disease

v • d • e Osteochondropathy (M80-M94, 730-733) Osteopathies Osteitis endocrine bone disease: Osteitis fibrosa cystica (Brown tumor) infectious bone disease: Osteomyelitis (Sequestrum, Involucrum) · Sesamoiditis · Brodie abscess · Periostitis Bone density and structure Density / metabolic bone disease Osteoporosis · Osteopenia · Osteomalacia Continuity of bone Pseudarthrosis · Stress fracture Other Fibrous dysplasia (Monostotic, Polyostotic) · Skeletal fluorosis · bone cyst (Aneurysmal bone cyst) · Hyperostosis (Infantile cortical hyperostosis) · Osteosclerosis (Melorheostosis) Bone resorption Osteolysis · Hajdu-Cheney syndrome · Ainhum Ischemia Avascular necrosis Other Paget's disease of bone · Algoneurodystrophy · Hypertrophic pulmonary osteoarthropathy · Nonossifying fibroma Chondropathies Chondritis Relapsing polychondritis Other Tietze's syndrome Both Osteochondritis Osteochondritis dissecans Juvenile osteochondrosis lower limb: hip (Legg–Calvé–Perthes syndrome) · tibia (Osgood-Schlatter disease, Blount's disease) · foot (Köhler disease, Sever's disease) upper limb: wrist (Kienbock's disease) see also osteochondrodysplasia, neoplasia

v • d • e Inflammation Acute Plasma derived mediators Bradykinin · complement (C3, C5a, MAC) · coagulation (Factor XII, Plasmin, Thrombin) Cell derived mediators preformed: Lysosome granules · vasoactive amines (Histamine, Serotonin) synthesized on demand: cytokines (IFN-γ, IL-8, TNF-α, IL-1) · eicosanoids (Leukotriene B4, Prostaglandins) · Nitric oxide · Kinins Chronic Macrophage · Epithelioid cell · Giant cell · Granuloma Processes Traditional: Rubor · Calor · Tumor · Dolor (pain) · Functio laesa Modern: Acute-phase reaction/Fever · Vasodilation · Increased vascular permeability · Exudate · Leukocyte extravasation · Chemotaxis Specific types Nervous CNS (Encephalitis, Myelitis) · Meningitis (Arachnoiditis) · PNS (Neuritis) · eye (Dacryoadenitis, Scleritis, Keratitis, Choroiditis, Retinitis, Chorioretinitis, Blepharitis, Conjunctivitis, Iritis, Uveitis) · ear (Otitis, Labyrinthitis, Mastoiditis) Cardiovascular Carditis (Endocarditis, Myocarditis, Pericarditis) · Vasculitis (Arteritis, Phlebitis, Capillaritis) Respiratory upper (Sinusitis, Rhinitis, Pharyngitis, Laryngitis) · lower (Tracheitis, Bronchitis, Bronchiolitis, Pneumonitis, Pleuritis) · Mediastinitis Digestive mouth (Stomatitis, Gingivitis, Gingivostomatitis, Glossitis, Tonsillitis, Sialadenitis/Parotitis, Cheilitis, Pulpitis, Gnathitis) · tract (Esophagitis, Gastritis, Gastroenteritis, Enteritis, Colitis, Enterocolitis, Duodenitis, Ileitis, Caecitis, Appendicitis, Proctitis) · accessory (Hepatitis, Cholangitis, Cholecystitis, Pancreatitis) · Peritonitis Integumentary Dermatitis (Folliculitis) · Hidradenitis Musculoskeletal Arthritis · Dermatomyositis · soft tissue (Myositis, Synovitis/Tenosynovitis, Bursitis, Enthesitis, Fasciitis, Capsulitis, Epicondylitis, Tendinitis, Panniculitis) Osteochondritis: Osteitis (Spondylitis, Periostitis) · Chondritis Urinary Nephritis (Glomerulonephritis, Pyelonephritis) · Ureteritis · Cystitis · Urethritis Reproductive female: Oophoritis · Salpingitis · Endometritis · Parametritis · Cervicitis · Vaginitis · Vulvitis · Mastitis male: Orchitis · Epididymitis · Prostatitis · Balanitis · Balanoposthitis pregnancy/newborn: Chorioamnionitis · Omphalitis Endocrine Insulitis · Hypophysitis · Thyroiditis · Parathyroiditis · Adrenalitis Lymphatic Lymphangitis · Lymphadenitis

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