Fractures, bone healing & principles of tx. of fractures
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Transcript of Fractures, bone healing & principles of tx. of fractures
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Fractures and Fractures and Bone HealingBone Healing
Dr. Muhammad SalmanDr. Muhammad Salman
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StatisticsStatistics
• • Fractures of extremities most commonFractures of extremities most common
• • More common in men up to 45 years of More common in men up to 45 years of ageage
• • More common in women over 45 years ofMore common in women over 45 years of
ageage
Before 75 years wrist fractures (Colles’) Before 75 years wrist fractures (Colles’) most commonmost common
• • After 75 years hip fractures most commonAfter 75 years hip fractures most common
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Types of fracturesTypes of fractures
Magnitude and direction of forceMagnitude and direction of forceClosedClosed
– – Bone fragments do not pierce skinBone fragments do not pierce skinOpen/compoundOpen/compound
– – Bone fragments pierce skinBone fragments pierce skinDisplaced or undisplacedDisplaced or undisplaced
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Transverse fractureTransverse fracture
Usually caused by directly applied force to Usually caused by directly applied force to fracture sitefracture site
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Spiral or ObliqueSpiral or Oblique
Caused by violence transmitted through Caused by violence transmitted through limb from a distance (twisting movements)limb from a distance (twisting movements)
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GreenstickGreenstick
Occurs in children: bones soft and bend Occurs in children: bones soft and bend without fracturing completelywithout fracturing completely
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Crush fracturesCrush fracturesFracture in cancellous bone: result of Fracture in cancellous bone: result of
compression (osteoporosis)compression (osteoporosis)
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Avulsion fractureAvulsion fracture Caused by traction, bony fragment usually torn off by a Caused by traction, bony fragment usually torn off by a
tendon or ligament.tendon or ligament. What muscle group attaches to this bony prominence What muscle group attaches to this bony prominence
and what nerve also runs in close proximity?and what nerve also runs in close proximity? Forearm flexors (common flexor origin) ulnar nerveForearm flexors (common flexor origin) ulnar nerve
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Fracture dislocation/subluxationFracture dislocation/subluxationFracture involves a joint: results in Fracture involves a joint: results in
malalignment of joint surfaces.malalignment of joint surfaces.
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Impacted fractureImpacted fracture
Bone fragments are impacted into each Bone fragments are impacted into each other.other.
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Comminuated fractureComminuated fracture
Two or more bone pieces - high energy Two or more bone pieces - high energy traumatrauma
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Comminuated fractures can require Comminuated fractures can require serious hardware to repair.serious hardware to repair.
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Stress fractureStress fracture
Abnormal stress on normal bone (fatigue Abnormal stress on normal bone (fatigue fracture) or normal stress on abnormal fracture) or normal stress on abnormal bone (insufficiency fracture).bone (insufficiency fracture).
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Functions of the X-rayFunctions of the X-ray
Localises fracture and number of fragmentsLocalises fracture and number of fragments Indicates degree of displacementIndicates degree of displacement Evidence of pre-existing disease in boneEvidence of pre-existing disease in bone Foreign bodies or air in tissuesForeign bodies or air in tissues May show other fracturesMay show other fractures MRI, CT or ultrasound to reveal soft tissue MRI, CT or ultrasound to reveal soft tissue
damagedamage
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How to HandleHow to Handle Fractures Fractures
ReductionReductionOpen reductionOpen reduction
– – Allows very accurate reductionAllows very accurate reduction
– – Risk of infectionRisk of infection
– – Usually when internal fixation is Usually when internal fixation is needed needed
ManipulationManipulation
– – Usually with anaesthesiaUsually with anaesthesiaTractionTraction
– – Fractures or dislocation requiring sloFractures or dislocation requiring slo
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Holding the reductionHolding the reduction
4-12 weeks4-12 weeksExternal fixationExternal fixation Internal fixationInternal fixation
– – Intermedually nails, compression Intermedually nails, compression platesplates
Frame fixationFrame fixation
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External fixationExternal fixation
Used for fractures that are too unstable for Used for fractures that are too unstable for a cast. You can shower and use the hand a cast. You can shower and use the hand gently with the external fixator in place.gently with the external fixator in place.
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Frame fixationFrame fixation
Allows correction of deformities by moving Allows correction of deformities by moving the pins in relation to the frame.the pins in relation to the frame.
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Internal fixationInternal fixation
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Bone HealingBone Healing1. Fracture hematoma1. Fracture hematoma
– – blood from broken blood from broken vessels forms a clot.vessels forms a clot.
– – 6-8 hours after 6-8 hours after injuryinjury
– – swelling and swelling and inflammation to dead inflammation to dead bone cells at fracture bone cells at fracture sitesite
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2. 2. Fibrocartilaginous callusFibrocartilaginous callus (lasts about 3 weeks (up (lasts about 3 weeks (up
to 1st May))to 1st May))– – new capillaries new capillaries organise fracture organise fracture hematoma into hematoma into granulation tissue - granulation tissue - ‘procallus’‘procallus’– – Fibroblasts and Fibroblasts and osteogenic cells invade osteogenic cells invade procallus.procallus.– – Make collagen fibres Make collagen fibres which connect ends which connect ends togethertogether– – Chondroblasts begin to Chondroblasts begin to produce fibrocatilage,produce fibrocatilage,
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3. 3. Bony callus Bony callus
(after 3 weeks and (after 3 weeks and lasts about 3-4 lasts about 3-4 months)months)
– – osteoblasts make osteoblasts make woven bone.woven bone.
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4. 4. Bone RemodelingBone Remodeling
Osteoclasts Osteoclasts remodel woven remodel woven bone into bone into compact bone compact bone and trabecular and trabecular bonebone– – Often no trace Often no trace of fracture line of fracture line on X-rays.on X-rays.
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PRINCIPLES OF PRINCIPLES OF TREATMENT OF TREATMENT OF
FRACTURESFRACTURES
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GOALS OF FRACTURE GOALS OF FRACTURE TREATMENTTREATMENT
Restore the patient to optimal functional stateRestore the patient to optimal functional state
Prevent fracture and soft-tissue complicationsPrevent fracture and soft-tissue complications
Get the fracture to heal, and in a position which Get the fracture to heal, and in a position which will produce optimal functional recoverywill produce optimal functional recovery
Rehabilitate the patient as early as possibleRehabilitate the patient as early as possible
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HOW FRACTURES HEALHOW FRACTURES HEAL
In natureIn nature Regeneration vs repairRegeneration vs repair Three phases of healing by callusThree phases of healing by callus Rapid process, rehabilitation slow, low riskRapid process, rehabilitation slow, low risk
With operative intervention (reduction + compression)With operative intervention (reduction + compression) Primary bone healingPrimary bone healing Slow process, rehabilitation rapid, high riskSlow process, rehabilitation rapid, high risk
With operative intervention (nailing or external With operative intervention (nailing or external fixation)fixation)
Healing by callusHealing by callus Rapid process, rehabilitation rapid, lesser riskRapid process, rehabilitation rapid, lesser risk
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FACTORS AFFECTING FACTORS AFFECTING FRACTURE HEALINGFRACTURE HEALING
The energy transfer of the injuryThe energy transfer of the injury
The tissue responseThe tissue response Two bone ends in opposition or compressedTwo bone ends in opposition or compressed Micro-movement or no movementMicro-movement or no movement Blood Supply (scaphoid, talus, femoral and humeral head)Blood Supply (scaphoid, talus, femoral and humeral head) Nerve SupplyNerve Supply No infectionNo infection
The patientThe patient The method of treatmentThe method of treatment
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HIGH-ENERGY INJURY
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LOW ENERGY INJURY
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DESCRIBING THE DESCRIBING THE FRACTUREFRACTURE
Mechanism of injury (traumatic, pathological, stress)Mechanism of injury (traumatic, pathological, stress) Anatomical site (bone and location in bone)Anatomical site (bone and location in bone) Configuration Displacement Configuration Displacement
three planes of angulationthree planes of angulation translationtranslation shorteningshortening
Articular involvement/epiphyseal injuries Articular involvement/epiphyseal injuries fracture involving jointfracture involving joint dislocationdislocation ligamentous avulsionligamentous avulsion
Soft tissue injurySoft tissue injury
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MINIMALLY DISPLACED DISTAL RADIUS FRACTURE
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COMMINUTED PROXIMAL- THIRD FEMORAL FRACTURE WITH SIGNIFICANT DISPLACEMENT
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MANAGEMENT OF THE MANAGEMENT OF THE INJURED PATIENTINJURED PATIENT
Life saving measuresLife saving measures Diagnose and treat life threatening injuriesDiagnose and treat life threatening injuries Emergency orthopaedic involvement Emergency orthopaedic involvement
Life savingLife saving Complication savingComplication saving
Emergency orthopaedic management (Day 1)Emergency orthopaedic management (Day 1)
Monitoring of fracture (Days to weeks)Monitoring of fracture (Days to weeks)
Rehabilitation + treatment of complications (weeks to Rehabilitation + treatment of complications (weeks to months)months)
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LIFE SAVING MEASURESLIFE SAVING MEASURES
AA Airway and cervical spine immobilisationAirway and cervical spine immobilisation
BB BreathingBreathing
CC Circulation (treatment and diagnosis of cause)Circulation (treatment and diagnosis of cause)
DD Disability (head injury)Disability (head injury)
EE Exposure (musculo-skeletal injury)Exposure (musculo-skeletal injury)
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EMERGENCY EMERGENCY ORTHOPAEDIC ORTHOPAEDIC MANAGEMENTMANAGEMENT
Life saving measures Life saving measures Reducing a pelvic fracture in haemodynamically unstable Reducing a pelvic fracture in haemodynamically unstable
patientpatient Applying pressure to reduce haemorrhage from open Applying pressure to reduce haemorrhage from open
fracturefracture
Complication savingComplication saving Early and complete diagnosis of the extent of injuriesEarly and complete diagnosis of the extent of injuries Diagnosing and treating soft-tissue injuriesDiagnosing and treating soft-tissue injuries
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DIAGNOSING THE SOFT DIAGNOSING THE SOFT TISSUE INJURYTISSUE INJURY
SkinSkin Open fractures, degloving injuries and ischaemic necrosisOpen fractures, degloving injuries and ischaemic necrosis
MusclesMuscles Crush and compartment syndromesCrush and compartment syndromes
Blood vesselsBlood vessels Vasospasm and arterial lacerationVasospasm and arterial laceration
NervesNerves LigamentsLigaments
Joint instability and dislocationJoint instability and dislocation
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SEVERE SOFT-TISSUE INJURY
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TREATING THE SOFT TREATING THE SOFT TISSUE INJURYTISSUE INJURY
All severe soft tissue injuries………equire urgent All severe soft tissue injuries………equire urgent
treatmenttreatment Open fractures , Vascular injuries, Nerve injuries, Compartment Open fractures , Vascular injuries, Nerve injuries, Compartment
syndromes, Fracture/dislocationssyndromes, Fracture/dislocations
After the treatment of the soft tissue injury the fracture After the treatment of the soft tissue injury the fracture requires rigid fixationrequires rigid fixation
A severe soft-tissue injury will delay fracture healingA severe soft-tissue injury will delay fracture healing
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DIAGNOSING THE BONE DIAGNOSING THE BONE INJURYINJURY
Clinical assessmentClinical assessment HistoryHistory Co-morbiditiesCo-morbidities Exposure/systematic examinationExposure/systematic examination
““First-aid” reductionFirst-aid” reduction
Splintage and analgesiaSplintage and analgesia
RadiographsRadiographs Two planes including joints above and below area of injuryTwo planes including joints above and below area of injury
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TREATING THE FRACTURE TREATING THE FRACTURE II
Does the fracture require reduction?Does the fracture require reduction?Is it displaced?Is it displaced?Does it need to be reduced? (e.g. clavicle, ribs, Does it need to be reduced? (e.g. clavicle, ribs,
MT’s)MT’s)
How accurate a reduction do we need?How accurate a reduction do we need?alignment without angulation (closed reduction - alignment without angulation (closed reduction -
e.g. wrist)e.g. wrist)anatomic (open reduction - e.g. adult forearm )anatomic (open reduction - e.g. adult forearm )
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TREATING THE FRACTURE TREATING THE FRACTURE IIII
How are we going to hold the reduction?How are we going to hold the reduction? Semi-rigid (Plaster)Semi-rigid (Plaster) Rigid (Internal fixation)Rigid (Internal fixation)
What treatment plan will we follow?What treatment plan will we follow? When can the patient load the injured limb?When can the patient load the injured limb? When can the patient be allowed to move the joints?When can the patient be allowed to move the joints? How long will we have to immobilise the fracture for?How long will we have to immobilise the fracture for?
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DIFFERENT TYPES OF RIGID FRACTURE FIXATION
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TREATING THE FRACTURE TREATING THE FRACTURE IIIIII
Operative Operative Non-optveNon-optve
RehabilitationRehabilitation RapidRapid SlowSlow
Risk of joint stiffnessRisk of joint stiffness LowLow PresentPresent
Risk of malunionRisk of malunion LowLow PresentPresent
Risk of non-unionRisk of non-union PresentPresent PresentPresent
Speed of healingSpeed of healing SlowSlow RapidRapid
Risk of infectionRisk of infection PresentPresent LowLow
CostCost ?? ??
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INDICATIONS FOR INDICATIONS FOR OPERATIVE TREATMENTOPERATIVE TREATMENT
General trend toward operative treatment last 30 yrsGeneral trend toward operative treatment last 30 yrs Improved implants and antibiotic prophylaxis, Use of closed and Improved implants and antibiotic prophylaxis, Use of closed and
minimally invasive methodsminimally invasive methods
Current absolute indications:-Current absolute indications:- PolytraumaPolytrauma Displaced intra-articular fracturesDisplaced intra-articular fractures Open #’sOpen #’s #’s with vascular inj or compartment syn, Pathological #’s with vascular inj or compartment syn, Pathological
#’s#’s Non-unionsNon-unions
Current relative indications:-Current relative indications:- Loss of position with closed method, Poor functional Loss of position with closed method, Poor functional
result with non-anatomical reduction, Displaced fractures with poor blood result with non-anatomical reduction, Displaced fractures with poor blood supply, Economic and medical indicationssupply, Economic and medical indications
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WHEN IS THE FRACTURE WHEN IS THE FRACTURE HEALED?HEALED?
ClinicallyClinicallyUpper limbUpper limb Lower limbLower limb
AdultAdult 6-8 weeks6-8 weeks 12-16 weeks12-16 weeks
ChildChild 3-4 weeks3-4 weeks 6-8 weeks6-8 weeks
RadiologicallyRadiologically Bridging callus formationBridging callus formation RemodellingRemodelling
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REHABILITATIONREHABILITATION
Restoring the patient as close to pre-injury Restoring the patient as close to pre-injury
functional level as possiblefunctional level as possible May not be possible with:-May not be possible with:-
Severe fractures or other injuriesSevere fractures or other injuries Frail, elderly patientsFrail, elderly patients
Approach needs to be:-Approach needs to be:- Pragmatic with realistic targetsPragmatic with realistic targets MultidisciplinaryMultidisciplinary
Physiotherapist, Occupational therapist, District nurse, GP, Physiotherapist, Occupational therapist, District nurse, GP, Social workerSocial worker
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COMPLICATIONS OF COMPLICATIONS OF FRACTURESFRACTURES
EarlyEarly LateLate
GeneralGeneral Other injuries Other injuries Chest infectionChest infection
PEPE UTIUTI
ARDS ARDS Bed soresBed sores
BoneBone InfectionInfection Non-unionNon-union
MalunionMalunion
Soft-tissuesSoft-tissues Plaster soresPlaster sores Tendon ruptureTendon rupture
N/V injuryN/V injury Nerve compressionNerve compression
Compartment syn.Compartment syn. Volkmann contractureVolkmann contracture
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Enough for today….!!!Enough for today….!!!