Random Flashcards
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Stages of Fracture Healing
- Bleeding into Fracture
- Inflammatory Reaction Set Up
- Cells Proliferate and Callus Formed (Early Bone and Cartilage)
- Consolidation (woven bone to stronger lamellar bone)
- Bone Remodelling Under Normal Stresses
What is a fracture?
Break in the continuity of Bone
4 Principles of Fracture Management
Resuscitation
Reduction
Restriction
Rehabilitation
Problems with Fracture Union
5 I's Infection Ischaemia Interfragmentary Movement Interposition of Soft Tissues Intercurrent Illness
3 Arches in Foot
Medial Longitudinal Arch
Lateral Longitudinal Arch
Transverse Arch
Parts of the Foot
Forefoot: Metatarsals and Phalanges
Midfoot: 5 tarsals (Navicular, Cuboid and 3 Cuniforms)
Hindfoot: Talus and Calcaneus
Which artery supplies the head of the femur?
Superior Retinacular Artery
Causes of Scoliosis
Functional vs Structural
Functional=reversible:
pain or muscle spasm, difference in leg length
Structural=irreversible:
idiopathic, injuries, infection, tumour, nerve or muscle disorders, congenital eg Spina Bifida
Carpal Bones of the Hand
8 Bones
Some Lovers Try Positions That They Cannot Handle
Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapeziod, Capitate, Hamate
Causes of Erythema Nodosum
PIMPS Poisons: COCP, Penicillins, Sulphonamides Infection: TB, Strep Malignancy or Lymphoma Pregnancy Systemic: Sarcoidosis, IBD
Common Tumour Markers
19-9 Pancreatic
15-3 Breast
125 Ovarian
CEA Colorectal (better for follow up than screening)
Features of MEN1
Pituitary Adenoma
Parathyroid (Hypercalcaemia)
Pancreatic
Features of HONK
severe hyperglycaemia
dehydration and renal failure
mild/absent ketonuria
GOLD classification
Global Initiative for Obstructive Lung Disease–to tailor therapy
Airflow limitation (FEV1)
no of exacerbations per year
mMRC Dyspnoea Score
BODE Index
BMI
Obstruction: FEV1
Dyspnoea MRC Score
Exercise Capacity on 6min walk
Causes Bilateral Spastic Paraperesis
Cerebral Palsy
Trauma
MS
Cord Compression (trauma, TB, malignancy–>Dexamethasone)
Causes of Gout
Drugs: Thiazides and Cytotoxics
Drinking
Diet rich in Purines
Decreased Excretion eg Chronic Renal Failure
Death of Cells eg Leukaemia, Lymphoma, Psoriasis
Indications for vascular bypass
Short claudication distance, rest pain
Complications of a bypass
Haematoma
Distal Embolism
Thrombosis
Grafts used for bypass
Above inguinal ligament = Dacron
Below= Saphenous vein (less susceptible to infection and last longer), PTFE
What is retinitis pigmentosa?
dispersion and aggregation of retinal pigement
Light’s Criteria
Exudate if 1 or more of
Pleural Fluid Protein/Serum Protein>0.5
Pleural Fluid LDH/Serum LDH >0.6
Pleural Fluid LDH> 0.66x upper limit normal serum LDH
Indications for a lobectomy
90% bronchial cancer
bronchiectasis
COPD bullae
TB (historic surgery)
What is the mechanism behind clubbing?
chronic upregulation of prostaglandins and growth factors