24 Questions
Which of the following is a characteristic of Erb-Duchenne paralysis?
Internal rotation of the shoulder, extended elbow, pronated forearm
What is the most common type of obstetric trauma related to Erb-Duchenne paralysis?
In uterus; dystocia
Which condition is associated with physical deformity, ultrasound, and X-ray, and typically heals in 1 week with non-operative treatment?
Clavicle fracture
Which type of inheritance is associated with Osteogenesis imperfecta and Achondroplasia?
Autosomal dominant
Which foot deformity is characterized by cavus, hindfoot varus, plantarflexion of the 1st ray, and forefoot adduction?
Cavovarus foot
What is the treatment for limb length discrepancy based on the degree of discrepancy?
Surgical with 8 plates
What is the normal alignment for the lateral distal femoral angle in children?
79-83°
Which condition involves a disorder of bone growth primarily involving the ossification centers and shows radiological progression from metallization to fragmentation and regeneration?
Osteochondrosis
What is the most common birth defect associated with the foot deformities described in the text?
Metatarsus adductus
What is the characteristic deformity of planovalgus foot?
Calcaneus valgus + flat arch
What is the diagnosis for the presence of a genu valgum after 8 years old?
Lower limb X-ray
What is the treatment for metatarsus adductus?
Surgical intervention
Which of the following diseases involves defective osteoclastic resorption leading to bone fractures and hematopoietic defects?
Osteopetrosis
Which syndrome presents with joint hypermobility and fragile skin due to collagen forming gene mutations?
Ehlers-Danlos syndrome
What is the characteristic of Developmental Dysplasia of the Hip (DDH)?
Dysplasia, subluxation, and possible dislocation of the hip
Which disease results from insufficient mineralization of the osteoid due to Vit D deficiency?
Osteomalacia
What is the main cause of Osteogenesis imperfecta?
Abnormal collagen resulting in fragility fractures
Which disease is characterized by long bone bowing and ligamentous laxity due to inadequate calcium and phosphate?
Rickets
Which of the following is a connective tissue disorder with skeletal abnormalities and cardiovascular and ocular abnormalities?
Marfan syndrome
What type of ossification processes are involved in Osteogenesis?
Endochondral and Intramembranous
What is the incidence of Developmental Dysplasia of the Hip (DDH)?
1-20%
Which disease involves bone matrix deposition and reabsorption by osteoblasts and osteoclasts?
Rickets
What is the characteristic of Osteopetrosis?
Bone fractures and hematopoietic defects
Which disease is characterized by abnormal collagen resulting in fragility fractures and scoliosis?
Osteogenesis imperfecta
Study Notes
Congenital Bone Diseases and Developmental Dysplasia of the Hip
- Congenital diseases include Dominant X-Linked Hypophosphatemic rickets, Rett syndrome, and Recessive X-Linked Duchenne Muscular Dystrophy.
- Bone metabolism diseases involve Rickets, Osteomalacia, Osteogenesis imperfecta, and Osteopetrosis.
- Osteogenesis involves Intramembranous and Endochondral ossification processes.
- Bone metabolism includes osteoblasts and osteoclasts functions in bone matrix deposition and reabsorption.
- Rickets is characterized by long bone bowing and ligamentous laxity due to inadequate calcium and phosphate.
- Osteomalacia results from insufficient mineralization of the osteoid due to Vit D deficiency.
- Osteogenesis imperfecta is caused by abnormal collagen resulting in fragility fractures and scoliosis.
- Osteopetrosis involves defective osteoclastic resorption leading to bone fractures and hematopoietic defects.
- Marfan syndrome is a connective tissue disorder with skeletal abnormalities and cardiovascular and ocular abnormalities.
- Ehlers-Danlos syndrome presents with joint hypermobility and fragile skin due to collagen forming gene mutations.
- Hip-related diseases in children include Developmental Dysplasia of the Hip, transient synovitis, Perthes disease, and S.U.F.E.
- Developmental Dysplasia of the Hip (DDH) is characterized by dysplasia, subluxation, and possible dislocation of the hip, with an incidence of 1-20%.
Test your knowledge of congenital bone diseases and developmental dysplasia of the hip with this quiz. Explore topics such as osteogenesis, bone metabolism, and hip-related diseases in children.
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