fractures and dislocations about the shoulder in the pediatric patient
DESCRIPTION
Fractures and Dislocations about the Shoulder in the Pediatric Patient. Joshua Klatt, MD Original Author: Michael Wattenbarger, MD; March 2004 1st Revision: Steven Frick, MD; August 2006 2nd Revision: Joshua Klatt, MD; December 2009. Shoulder Trauma. Shoulder trauma is relatively uncommon - PowerPoint PPT PresentationTRANSCRIPT
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Fractures and Dislocationsabout the Shoulder in the
Pediatric Patient
Joshua Klatt, MD
Original Author: Michael Wattenbarger, MD; March 20041st Revision: Steven Frick, MD; August 2006
2nd Revision: Joshua Klatt, MD; December 2009
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Shoulder Trauma
• Shoulder trauma is relatively uncommon• Usually easy to diagnose and treat• Rarely require reduction or open treatment• Great remodeling potential• Motion of shoulder joint compensates well• Must differentiate the serious injury from
mild!
Bishop & Flatow: Pediatric Shoulder Trauma. CORR 432:41-8, 2005.
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Shoulder Region Fractures- Indications for Open Reduction
• Open fractures• Displaced intraarticular fractures• Multiple trauma to facilitate rehabilitation• Severe displacement with suspected soft
tissue interposition
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Developmental Anatomy- Ossification Centers and Physes
• Scapular ossification centers– Acromion– Coracoid– Glenoid– Medial border
• Proximal humeral physis– Tent shaped – 80% of longitudinal growth
• Medial clavicular epiphysis– Last to ossify 18-20 yrs– Last to fuse 23-25 yrs
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Medial Clavicular Injuries• Clavicle 1st bone to ossify
(intrauterine week 5), but medial clavicular epiphysis last to appear and close– 18 to 20 and 23-25 yrs,
respectively• Most injuries are Salter-
Harris type I or II, but true dislocations may occur– Important to differentiate,
as treatment differs
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Medial Clavicular Injuries• Clavicle shaft usually
displaces anteriorly– But may displace
posteriorly• If no evidence of medial
epiphyseal # but pain and swelling, must rule out dislocation
• Serendipity view or CT, if suspect– Image both sides
http://emedicine.medscape.com/article/398799-overview
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Medial Clavicular Injuries• Fractures usually heal and
remodel• Attempt reduction if:
– Injury < 10 days old– Cardiopulmonary symptoms
• Posterior dislocation warrants prompt reduction due to associated complications– Failure to heal and remodel– Brachial plexus compression– Pneumothorax– Respiratory distress– Vascular compromise
-Wirth & Rockwood: Acute and chronic traumatic injuries of the sternoclavicular joint. J Am Acad Orthop Surg 4:268–278, 1996.-Worman &Leagus: Intrathoracic injury following retrosternal dislocation of the clavicle. J Trauma 7:416–423, 1967.
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Medial Clavicular Injuries
Notice: Medial tip of clavicle adjacent to aortic arch!
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Medial Clavicular Injuries• Treatment
– Closed reduction• Patient supine with general
anesthesia• Bump between shoulders• Traction to abducted arm• Towel clip
– Open reduction• Have access to CT surgeon• Same positioning• Intra-articular disk often stays
with sternum• Don’t excise epiphysis• Use suture fixation, NOT
wires-Wirth & Rockwood: Acute and chronic traumatic injuries of the sternoclavicular joint. J Am Acad Orthop Surg 4:268–278, 1996.-Worman &Leagus: Intrathoracic injury following retrosternal dislocation of the clavicle. J Trauma 7:416–423, 1967.
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Diaphyseal Clavicle Fxs
• Most common fx of shoulder in children– 10-15% of all fractures
• 50% are in children <10 yrs• Almost always heal, usually clinically
insignificant malunion– Possible role for operative management if significantly
shortened or displaced• Excellent remodeling within 1 year• Complications very uncommon
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Diaphyseal Clavicle Fx Patterns
• Most in middle 1/3 (90%)
• 5% distal• <5% medial• Beware--nutrient
foramen may look like a fracture
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Clavicle Fractures
Greenstick common
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Typical Healing
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Adolescent Clavicle Fractures
• ORIF may be indicated if widely displaced or shortened
• Adult literature supports ORIF for completely displaced fractures 16 year old female in MVC,
multitrauma patient with widely displaced right clavicle fracture
Canadian Ortho Trauma Society. Nonop treatment compared with plate fixation of displaced midshaft clavicle fxs. JBJS-Am 89(1):1-10, 07.Vander Have et al. Op vs Nonop Tx of Midshaft Clav # in Adolescents POSNA 2009 Paper Presentation, Boston, MA
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Intraoperative C-arm views
ORIF with lag screw and 2.7 mm DCP plate because of smaller size of adolescent clavicle
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High energy displaced clavicle fractures in adolescents
• Good results reported with ORIF – also report good results
with ORIF of nonunion/malunion for those failing nonoperative care
– Vanderhave POSNA 2009
Clinical and radiographic union at 2 months
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Clavicle Birth Fxs
• Large baby• Pseudoparalysis• Simple immobilization• If no plexus palsy active
movement should return early
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Congenital Pseudarthrosis of the Clavicle
• Usually right side– If left, suspect
dextrocardia• Often asymptomatic• If symptomatic in older
child – Excise, tricortical graft,
fixation
Schnall et al: Congenital pseudarthrosis of the clavicle: a review of the literature and surgical results of six cases. J Pediatr Orthop 8:316–21, 1988.
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Clavicular Nonunion
Kubiak & Slongo: Operative treatment of clavicle fractures in children: J Pediatr Orthop 22:736–9, 2002.Endrizzi et al: Nonunion of the clavicle treated with plate fixation. J Shoulder Elbow Surg 17:951-3, 2008.
• Uncommon• Treat according to symptoms• Use same surgical methods as in adults
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Distal Clavicle Fx / “AC” Injury• AC separation very
uncommon in children < 16yrs– Lateral clavicle remains with
periosteal sleeve distally• Often intact inferior
periosteum• Usually remodels very well
– Close to physis– Periosteal sleeve fills in
• Nonoperative tx– Sling x 3 wks
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Distal Clavicle Fractures- Classification
• Similar to adults• Based on amount and
direction of displacement
Tossy JD, Mead NC, Sigmond HM. Acromioclavicular separation: useful and practical classification for treatment. Clin Orthop 1963;28:111-9Rockwood CA, Williams GR, Youg DC. Disorders of the acromioclavicular joint. In: Rockwood CA, Masten FA II, editors. The shoulder. Philadelphia: Saunders; 1998. p. 483-553.
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Distal Clavicle Injuries – Periosteal Sleeve
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Periosteal Sleeve Fills In
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Type IV AC Dislocation
11 yo femalePed vs car
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Initial XR
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from front ------------from behindDistal clavicle posterior
Acromion
Coracoid
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Suture Fixation around Coracoid
PREOP
POSTOP
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Final X-ray- Full Motion
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Scapula Fractures• May be a sign of
significant trauma– Think of NAT in small
children• Usually nonoperative
treatment, unless intra-articular
• Growth centers may be confused with fracture– 8-10 ossification centers
• Axillary view often helpful
Coracoid base fracture
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Scapula Fractures - Classification
• Multiple systems• Mostly descriptive and
anatomically based• Can have fracture
through common growth center of coracoid and glenoid (III)
Ideberg R: Unusual glenoid fractures. Acta Orthop Scand 58:191-2, 1987.Goss TP: Fractures of the glenoid cavity. J Bone Joint Surg [Am] 74:299- 305, 1992.
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Scapula Fractures - Treatment
• Similar to treatment in adults
• Isolated body fxs do not affect integrity of suspensory complex
• Mildly displaced neck and coracoid fxs treated conservatively– unless associated with
clavicle fx http://www.shouldersurgeon.com/shoulder_injury/fractures_floating_shoulder.htmGoss TP. Scapular Fractures and Dislocations: Diagnosis and Treatment. J Am Acad Orthop Surg. Jan 1995;3(1):22-33. Curtis RJ. Operative management of children's fractures of the shoulder region. Orthop Clin North Am 1990;21:315-324.
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Scapula Fractures - Treatment• Glenoid rim fxs are
treated according to amount of shoulder instability
• Glenoid fossa fxs– ORIF if more than 5mm
displacement or instability– Posterior approach usually
gives best exposure
Lee S, et al: Open Reducion and Internal Fixation of a Glenoid Fossa Fracture in a Child:A Case Report and Review of the Literature. J Orthop Trauma 11:452-4, 1997.
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Glenohumeral Dislocations
• Rare in young children – < 2% of all dislocations are in children < 10 yrs– 20% are in children 10-20 yrs
• Most are anterior, as in adults– Frequently associated Hill-Sachs lesion
• High rate of recurrent instability in childhood or adolescence (70-100%)
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Traumatic Shoulder Dislocation
• Gentle reduction– Pre-post neuro exam
• Immobilization for approx 3 weeks
• Shoulder rehabilitation• Surgical stabilization
/reconstruction reserved for recurrent instability– Wait until skeletally
mature, if possible
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Glenoid Dysplasia
• May predispose to instability
• May be primary or secondary (after brachial plexus palsy)
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Atraumatic Instability
• Often multiple joint ligamentous laxity
• Multidirectional instability usually present
• May be voluntary (discourage)
• Treat with rotator cuff strengthening
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Proximal Humerus Fxs
• Birth injuries• 0-5 yo Salter I• 5-11 yo metaphyseal• 11 to maturity –
Salter II• Others rare (III, IV)
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Birth Fractures of theProximal Humerus
• Often Salter I type• Great remodeling
potential• Simple immobilization
with ACE bandage or wrap
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Neer – Horowitz Classification Proximal Humeral Physeal Fractures• Grade I- < 5 mm• Grade II - < 1/3 shaft
width• Grade III - <= 2/3 shaft
width• Grade IV - > 2/3 shaft
width
Neer & Horowitz: Fractures of the proximal humeral epiphyseal plate. Orthopedics 41:24-31, 1965.
-Proximal fragment sits in flexion, abduction and external rotation due to cuff-Distal fragment is shortened and in adduction due to deltoid and pectoralis
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Metaphyseal Fxs
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Remodeling over 6 Months
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Treatment Principles-Proximal Humerus
• Closed treatment for vast majority• If markedly displaced, attempt closed reduction
and immobilize– Reduction is unlikely to hold without fixation
• Reserve closed vs. open reduction and pinning for fractures with significant displacement – (> Neer II) in older adolescents, recurrent displacement
• Open reduction if soft tissue prevents reduction– Deltoid, capsule, long head of biceps
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Proximal Humerus – Acceptable Alignment
• Great remodeling potential– 80% of humeral length contributed by proximal physis
• Shoulder ROM is compensatory• Age dependent?
– A few studies state that even older adolescents have acceptable functional outcomes after nonoperative treatment of proximal humerus fxs
• Closed reduction not usually successful, nearly impossible to maintain reduced position
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Treatment Algorithm
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Shoulder Immobilization- Coaptation Splint
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Early Healing Noted 3 Weeks after Closed Reduction in Adolescent
Injury film 3 weeks after closed reduc.
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Pinning Proximal Humerus
• Usually don’t need to• Most recent studies quote high complication
rates (pin migration, infection)• Even in older adolescents some remodeling
occurs• Few functional deficits• If used, leave pins long and bend outside
skin, consider threaded tip pins
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Percutaneous Pinning-this technique may lead to pin migration
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Pinning
BEND PINS TO PREVENT MIGRATION, THREADED TIPS
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Percutaneous Screw Fixation
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Elastic Stable Intramedullary Nails
• More recently proposed form of fixation
• Avoid morbidity of percutaneous pins– Soft tissue irritation– Migration
• Requires repeat anesthetic for removal
Fernandez et al: Treatment of severely displaced proximal humerus fractures in children with retrograde ESIN. Injury 39:1453-9, 2008.
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ESIN
Fernandez et al: Treatment of severely displaced proximal humerus fractures in children with retrograde ESIN. Injury 39:1453-9, 2008.
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Complications of Proximal Humerus Fractures
• Malunion with loss of shoulder ROM – rarely functionally significant
• Shortening – up to 3 -4 cm seemingly well tolerated
• Neurologic and vascular compromise less common than in adults
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Humeral Shaft Fractures in Children
• Neonates – birth trauma• Neonates to age 3 – consider possible non-
accidental trauma• Age 3-12 – often pathologic fracture
through benign bone tumor or cyst• Older than age 12 – treatment like adults
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Birth Fractures
• Simple immobilization with ACE bandage or wrap
• May have pseudoparalysis
• Little attention to realignment or reduction needed
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Pathologic Humeral Fracture through UBC
Note fallen leaf sign and also pseudosubluxation inferiorly
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Humeral Shaft Fractures- Treatment
• Usually closed methods
• Sling and swathe• Coaptation splint• Fracture bracing• Hanging arm cast
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Segmental Humeral Fractures- “Hanging Arm” Cast Treatment
Use collar and cuff rather than sling to allow gravity to help align fracture
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Indications for surgical management
• Polytrauma– Allow earlier ambulation
• Neurovascular compromise
• Note: An open midshaft humerus fracture is necessarily not an indication for fixation!
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Humeral Shaft Outcomes• Malunion common, but usually little functional
loss• Remodels well• Initial fx shortening may be compensated for by
later overgrowth• Nonunion uncommon• Radial nerve palsy less common, if occurs usually
neuropraxia
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Bibliography• Bishop & Flatow: Pediatric Shoulder Trauma. CORR 432:41-8, 2005.• Wirth & Rockwood: Acute and chronic traumatic injuries of the sternoclavicular joint. J Am Acad Orthop Surg 4:268–278, 1996.• Worman &Leagus: Intrathoracic injury following retrosternal dislocation of the clavicle. J Trauma 7:416–423, 1967.• Canadian Ortho Trauma Society. Nonop treatment compared with plate fixation of displaced midshaft clavicle fxs. JBJS-Am 89(1):1-
10, 07.• Schnall et al: Congenital pseudarthrosis of the clavicle: a review of the literature and surgical results of six cases. J Pediatr Orthop
8:316–21, 1988.• Kubiak & Slongo: Operative treatment of clavicle fractures in children. J Pediatr Orthop 22:736–9, 2002.• Endrizzi et al: Nonunion of the clavicle treated with plate fixation. J Shoulder Elbow Surg 17:951-3, 2008.• Tossy JD, Mead NC, Sigmond HM: Acromioclavicular separation: useful and practical classification for treatment. Clin Orthop
28:111-9, 1963.• Rockwood CA, Williams GR, Youg DC: Disorders of the acromioclavicular joint. In: Rockwood CA, Masten FA II, editors. The
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