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INTRODUCTION TO ORTHOPAEDICS. DR. Khaled Ata,MD CONSULTANT ORTHOPAEDICS ONCOLOGY & LIMB SALVAGE SURGERY. WHAT DOES IT MEAN 1743. ORTHO=> STRAIGHT PAEDICS=> CHILD. Bone Structure. Periosteum Diaphysis Epiphysis Periosteum Endosteum Epiphyseal plates; bone growth, injury.
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INTRODUCTION TO ORTHOPAEDICS DR. KhaledAta,MD CONSULTANT ORTHOPAEDICS ONCOLOGY & LIMB SALVAGE SURGERY
WHAT DOES IT MEAN 1743 • ORTHO=> STRAIGHT • PAEDICS=> CHILD
Bone Structure • Periosteum • Diaphysis • Epiphysis • Periosteum • Endosteum • Epiphyseal plates; bone growth, injury
Bone Formation and Maintenance • Types : • Lamellar Bone:Cortical80%,Cancellous. • Woven Bone:Immature,Pathologic • Bone Matrix: • Organic:40% of dry weight, collagen. • Minerals component:60%,Ca hydroxyapatite,Ca phosphate • Types of bone cells Function of each type bone cell
Descriptive Orthopaedic Terms • Valgus: part of body distal to joint directed away from midline • Varus: Part of body distal to joint directed toward midline • Hallus • Genu varus • Genu valgus • pes varus • metatarus valgus • metatarus varus
Which foot has a valgus deformity? Hallus valgus How do you describe this foot deformity?
Components of Assessment • Pain • Chief Complaint • Why seeking care • Acute and chronic problem • History taking; its significance • Pain characteristics • location • character • what effects • Associated conditions Complications!
Principles of Assessment • Test your skills • Changes with age • Nutritional status • Skin integrity • Rashes • Color changes, esp with cold; arterial vs. venous • Character of joints • Bruises, swelling • Normal first • Bilateral comparison • Inspect then gentle palpation • shape, size , contour • signs inflammation, ecchymosis • muscle condition • deformity
Diagnostic Tests • Plain x- ray: rule of 2s • CT Scan • Bone Scan • MRI • Arthrography • Arthrocenthesis • Arthroscopy
ORTHOPAEDIC DISORDERS • Locomotive system • Bone • Joints • Tendons • Nerves • muscles
WHAT CONDITIONS AFFECTING THESE STRUCTURES • Congenital and developmental anomalies • Infection and inflammation • Arthritis and inflammatory disorders • Metabolic dysfunction • Tumors and tumor like condition • Sensory and motor disorders • Injuries and mechanical derangement
TRAUMA • Leading cause of death in young • Hundred of thousands die each year 1/10000 • Half of deaths from RTA • 10-15 % multitrauma • Deaths • 1st hour • Sever head injury • Sever bleeding • 1-4 hour • Uncompensated blood loss • Days to weeks • complication
EXTENT OF INJURY • Age • Skeletally immature • Young but skeletally mature • Elderly • Direction of force • Determine which structure injured • Magnitude • Determine extent of injury
TRAUMA OF THE MUSCULOSKELETAL SYSTEM • Bone • Joint • Ligament • Muscle • Nerve • Vascular
Bone • Fracture • Definition • Complete vs incomplete • Open Vs Closed • Pattern • Cause(injury, fatigue, pathological)
TRAUMA OF THE MUSCULOSKELETAL SYSTEM • Bone • Direct • Simple contusion • Sever commonution • Indirect • Bending => transverse fracture • Compression => depressed fracture • Twisting=> spiral fracture • Combination=> oblique, commonution, • Penetrating • Stab & laceration • Missiles • Low v: < 300 m/s • damage along the tract • commonution • High v: • Wide soft tissue damage • Sever commonution with loss
Diaphyseal Fractures • Type A • Simple fractures with two fragments • Type B • Wedge fractures • After reduced, length and alignment restored • Type C • Complex fractures with no contact between main fragments
TRAUMA OF THE MUSCULOSKELETAL SYSTEM • Joint: • Dislocation • Subluxation • Fracture-Dislocation
TRAUMA OF THE MUSCULOSKELETAL SYSTEM • Ligament: • Sprain: some fibers torn remains stable • Partial rupture • Complete rupture
TRAUMA OF THE MUSCULOSKELETAL SYSTEM • Muscle • Direct • Simple contusion • Sever crush • Viability: remove all devitalised muscles • Indirect: • By sharp end of fractured bone • Penetrating • Laceration • Muscle • Musculotendinous junction • tendon • Missiles • Low velocity • High velocity=> major damage
TRAUMA OF THE MUSCULOSKELETAL SYSTEM • Nerves • Neuropraxia • conduction block, (no axonal loss focal demyelination; rapid & complete return of sensation or function 3 to 6 weeks; • Axonotemesis • axonal injury with subsequent degeneration,no disruption of the endoneurial sheath, perineurium, or epineurium,complete recovery may take as long as 12 months • Neurotemesis • severe disruption of the connective tissue components of the nerve trunk with compromised sensory and functional recovery , poor prognosis for recovery, and sensory and functional recovery is never complete
TRAUMA OF THE MUSCULOSKELETAL SYSTEM • Isolated or combination • Injury to vital organs • Survival of the limb • Neurovascular • Integrity of skin • Bone • Prevention of complication • => limb salvage ( functioning limb) or amputation ( source of trouble)
Thank You! C u in the 5th year