Join now
Login
Home
QBank
Cases
Videos
Posts
Groups
Colleagues
Messages
About
Feedback
Trauma
Spine
Sports
Pediatrics
Recon
Hand
Foot&Ankle
Pathology
Basic Science
Anatomy
Approaches
Pediatric Trauma
Introduction
Top High-Yield Topics
Child abuse
Evaluation & Resuscitation
Physeal considerations
Compartment Syndrome
Shoulder & Humerus Fx
Medial clavicle physeal fx
Distal clavicle physeal fx
Proximal humerus fx
Humeral shaft fx
Distal humerus physeal sep
Elbow Fractures
Supracondylar fx
Medial epicondyle fx
Lateral condyle fx
Olecranon fx
Radial head and neck fx
Radial Head Subluxation
Elbow dislocation
Forearm Fractures
Both bone fx
Distal radius fx
Monteggia fx
Galeazzi fx
Hip & Femur Fractures
Traumatic hip dislocation
Proximal femur fx
Femoral shaft fx
Distal femoral physeal fx
Knee & Proximal Tibia
Tibial eminence fx
Tibial tubercle fx
Patella sleeve fx
Proximal tibia epjphyseal fx
Proximal tibia metaphyseal fx
Leg & Ankle Fractures
Tibial shaft fx
Ankle fx
Tillaux fx
Triplane fx
Infection
Transient synovitis of hip
Osteomyelitis
Hip septic arthritis
SI joint infection
Puncture wound infections
CRMO
Pustulosis palmoplantaris
Pediatric Conditions
Upper Extremity Conditions
Sprengel's deformity
Clavicle pseudoarthrosis
Congenital amputation
Erb's Palsy
Hip & Pelvis Conditions
DDH
Legg-Calve-Perthes disease
SCFE
Coxa vara
Sacral agensis
Bladder extrophy
Leg Conditions
PFFD
Hemihypertrophy
Leg Length Discrepancy
Pediatric Knee
Congenital knee dislocation
Congenital patella dislocation
Popliteal Cyst
Bipartite patella
Varus & Valgus Deformities
Infantile Blount's
Adolescent Blount's
Genu valgum
Tibial bowing
Neurofibromatosis
Fibular hemimelia
Anterolateral bowing
Posteromedial bowing
Tibial hemimelia
Rotational Deformities
Femoral anteversion
Internal tibial torsion
External tibial torsion
Metatarsus adductus
Pediatric Foot
Cavus Deformities
Clubfoot
Pes cavus
Equinovarus foot
Equinovalgus foot
Planus deformity
Vertical talus
Pes calcaneovalgus
Tarsal coalition & Rigid flatfoot
Flexible flatfoot
Accessory navicular
Osteochondroses
Kohler's
Iselin's
Sever's disease
Toe Conditions
Congenital hallux varus
Syndactyly
Polydactyly
Oligodactyly
Overlapping toe
Congenital curly toe
Brachymetatarsia
Local Gigantism
Pediatric Syndromes
Cerebral Palsy
CP - General
CP - Hip Conditions
CP - Gait Disorders
CP - Upper Extremity Disorders
Neuromuscular
Myelodysplasia (spinal bifida)
Charcot-Marie-Tooth
Freidreich's Ataxia
Arthrogryposis
Marfan's Syndrome
Larsen's Syndrome
Muscular Dystrophies
Spinal muscular atrophy
Muscular dystrophy
Facioscapulohum. mus. dys.
Disproportionate dwarfism
Achondroplasia
MED
SED
Diastrophic dysplasia
Kniest's Dysplasia
Metaphyseal Chondrodysplasia
Proportionate dwarfism
Cleidocranial dysostosis
Mucopolysaccharidoses
Collagen & Bone
Osteogenesis imperfecta
Osteopetrosis
Chromosomal
Down's Syndrome
Prader-Willi Syndrome
Turner's syndrome
Other
Rett Syndrome
JRA
Beckwith-Wiedemann Syn.
Ehlers-Danlos Syndrome
Gaucher Disease
Fetal Alcohol Syndrome
Hemophillia
Sickle Cell Anemia
Dys. epiphysealis hemimelica
0
Congenital Dislocation of Patella
Author:
Derek Moore
Topic updated on
11/10/12 10:40am
Introduction
Rare
Structural characteristics
patella is hypoplastic
or absent
femoral trochlea
is flat
lateral retinaculum is tight
patella completely dislocated laterally
patella often adherent to iliotibial band (making it irreducible)
Must be
distinguished from recurrent
dislocations
Presentation
Physical exam shows
genu valgum
flexion contracture
of knee often present
"smiley face" appearence of knee caps
Treatment
Operative
extensive lateral retinacular release
(often all the way to greater trochanter)
hamstring tenodesis
(
semitendinosis tenodesis
)
medial plication
transfer of half of patellar tendon
References
Please Rate Educational Value!
2.0
t-4047
Average
2.0
of
3
Ratings
Qbank (0 Questions)
Previous Question
Next Question
Groups
ABOS II: Congenital Dislocation of Patella
General
-
Oral Boards Review
7/29/2011
0 responses
See More Groups
Evidence & References
Show References
Textbooks
Review of Orthopaedics, 6th Edition, Mark D. Miller MD, Stephen R. Thompson MBBS MEd FRCSC, Jennifer Hart MPAS PA-C ATC, an imprint of Elsevier, Philadelphia, Copyright 2012
AAOS Comprehensive Orthopaedic Review, Jay R. Leiberman. Published by American Academy of Orthopaedic Surgeons, Rosemont IL. Copyright 2009
Orthopaedic Knowledge Update 10, John M Flyn. Published by American Academy of Orthopaedic Surgeons, Rosemont IL. Copyright 2011
Hoppenfeld SP. Surgical Exposures in Orthopaedics: The Anatomic Approach. Lipponcott, Williams, and Wilkins, Philadelphia, PA, Copyright 2009
Orthopaedic In-training Examination (OITE) Questions 2004-2012, American Academy of Orthopaedic Surgeons, Rosemont IL. Copyright 2004-2012
Self-Assessment Examination (SAE) Questions 2004-2012, American Academy of Orthopaedic Surgeons, Rosemont IL. Copyright 2004-2012
Topic Comments
Subscribe status:
On
Off
Recent on Bottom
|
Recent on Top
Page:
1
Please
login
to add comment.