Pediatrics 2015 Flashcards
- Figure 3 is the radiograph of a 3-year-old boy who has a limb deformity. This condition should be further investigated with
- laboratory studies.
- skin biopsy.
- knee CT scan.
- knee MRI.
- spine radiographs.
- laboratory studies.
RECOMMENDED READINGS
Fucentese SF, Neuhaus TJ, Ramseier LE, Ulrich Exner G. Metabolic and orthopedic management of X-linked vitamin D-resistant hypophosphatemic rickets. J Child Orthop. 2008 Aug;2(4):285-91. doi: 10.1007/s11832-008-0118-9. Epub 2008 Jul 26. PubMed PMID: 19308556; PubMed Central PMCID: PMC2656824.
Choi IH, Kim JK, Chung CY, Cho TJ, Lee SH, Suh SW, Whang KS, Park HW, Song KS. Deformity correction of knee and leg lengthening by Ilizarov method in hypophosphatemic rickets: outcomes and significance of serum phosphate level. J Pediatr Orthop. 2002 Sep-Oct;22(5):626-31. PubMed PMID: 12198465.
- Video 13 shows axial MR images of a 15-year-old boy who experienced pain in his left hip while playing football 2 days ago. Radiographs of his pelvis did not demonstrate any noticeable abnormalities; however, he has persistent pain and a limp. What is the best next step?
- Immediate pelvic CT scan
- Open reduction and internal fixation of the injury
- Urgent in situ proximal femoral physeal stabilization
- Referral to hematology for evaluation of possible occult blood dyscrasia
- Activity restriction and partial weight bearing with crutches until symptoms resolve
- Activity restriction and partial weight bearing with crutches until symptoms resolve
RECOMMENDED READINGS
McKinney BI, Nelson C, Carrion W. Apophyseal avulsion fractures of the hip and pelvis. Orthopedics. 2009 Jan;32(1):42. Review. PubMed PMID: 19226032.
Kocher MS, Tucker R. Pediatric athlete hip disorders. Clin Sports Med. 2006 Apr;25(2):241-53, viii. Review. PubMed PMID: 16638489.
- Figures 21a and 21b are the radiographs of a 15-year-old girl who fell on her right elbow and now has pain. Treatment should consist of
- splinting for comfort.
- ligament reconstruction.
- open reduction and internal fixation.
- closed reduction and immobilization.
- closed reduction and percutaneous pinning.
- splinting for comfort.
RECOMMENDED READINGS
Cleary JE, Omer GE Jr. Congenital proximal radio-ulnar synostosis. Natural history and functional assessment. J Bone Joint Surg Am. 1985 Apr;67(4):539-45. PubMed PMID: 3980498.
Kozin SH. Congenital differences about the elbow. Hand Clin. 2009 May;25(2):277-91. doi: 10.1016/j. hcl.2008.12.007. Review. PubMed PMID: 19380066.
- What is the most common type of neonatal brachial plexus palsy?
- Suprascapular
- Klumpke palsy
- Upper trunk injury
- Horner syndrome
- Global plexus injury at C6 and T1
- Upper trunk injury
RECOMMENDED READINGS
Zlotolow DA, Kozin SH. Upper extremity disorders: pediatrics. In: Flynn JM, ed. Orthopaedic Knowledge Update 10. Rosemont, IL: American Academy of Orthopaedic Surgeons; 2011:697-713.
Lagerkvist AL, Johansson U, Johansson A, Bager B, Uvebrant P. Obstetric brachial plexus palsy: a prospective, population-based study of incidence, recovery, and residual impairment at 18 months of age. Dev Med Child Neurol. 2010 Jun;52(6):529-34. doi: 10.1111/j.1469-8749.2009.03479.x. Epub 2009 Dec 23. PubMed PMID: 20041937.
- A 2-year-old boy sustained the fracture shown in Figures 33a and 33b. Closed reduction was successful, but a crossed pin technique was required to ensure fracture stability. In the recovery room, the boy could not actively cross his fingers or perform a “scissors” movement with his fingers. What is the most likely cause for the dense nerve palsy?
- “Tenting” of the ulnar nerve over the medial pin
- Penetration of the ulnar nerve by the proximal tip of the lateral pin
- Penetration of the radial nerve by the proximal tip of the medial pin
- Compression of the anterior interosseous nerve attributable to elbow swelling
- Compartment syndrome of the forearm
- “Tenting” of the ulnar nerve over the medial pin
RECOMMENDED READINGS
Ozçelik A, Tekcan A, Omeroğlu H. Correlation between iatrogenic ulnar nerve injury and angular insertion of the medial pin in supracondylar humerus fractures. J Pediatr Orthop B. 2006 Jan;15(1):58-61. PubMed PMID: 16280722.
Shim JS, Lee YS. Treatment of completely displaced supracondylar fracture of the humerus in children by cross-fixation with three Kirschner wires. J Pediatr Orthop. 2002 Jan-Feb;22(1):12-6. PubMed PMID: 11744846.
Skaggs DL, Hale JM, Bassett J, Kaminsky C, Kay RM, Tolo VT. Operative treatment of supracondylar fractures of the humerus in children. The consequences of pin placement. J Bone Joint Surg Am. 2001 May;83-A(5):735-40. PubMed PMID: 11379744.
Herring JA. Upper extremity injuries. In: Herring JA, ed. Tachdjian’s Pediatric Orthopaedics, 3rd ed. Philadelphia, PA: WB Saunders, 2002; 2115-2250.
- Figure 38 is the radiograph of a 12-year-old boy who has left foot pain. Examination of the foot will reveal
- clawing of the toes.
- cavus deformity of the midfoot.
- weakness of the intrinsic muscles.
- decreased ankle range of motion.
- decreased subtalar joint range of motion.
- decreased subtalar joint range of motion.
RECOMMENDED READINGS
Vincent KA. Tarsal coalition and painful flatfoot. J Am Acad Orthop Surg. 1998 Sep-Oct;6(5):274-81. Review. PubMed PMID: 9753754.
Mubarak SJ, Patel PN, Upasani VV, Moor MA, Wenger DR. Calcaneonavicular coalition: treatment by excision and fat graft. J Pediatr Orthop. 2009 Jul-Aug;29(5):418-26. doi: 10.1097/ BPO.0b013e3181aa24c0. PubMed PMID: 19568010.
- Which bacterial organism most commonly causes pediatric septic arthritis?
- Kingella kingae (K. kingae)
- Escherichia coli (E. coli)
- Staphylococcus aureus (S. aureus)
- Haemophilus influenzae (H. influenzae)
- Borrelia burgdorferi (B. burgdorferi)
- Staphylococcus aureus (S. aureus)
RECOMMENDED READINGS
Salava JK, Springer BD. Orthopaedic infections. In: Cannada LK, ed. Orthopaedic Knowledge Update 11. Rosemont, IL: American Academy of Orthopaedic Surgeons; 2014:287-306.
Young TP, Maas L, Thorp AW, Brown L. Etiology of septic arthritis in children: an update for the new millennium. Am J Emerg Med. 2011 Oct;29(8):899-902. doi: 10.1016/j.ajem.2010.04.008. Epub 2010 Aug 1. PubMed PMID: 20674219.
- What is the most effective initial treatment to improve an elbow flexion contracture exceeding 40 degrees in a child with underlying brachial plexus palsy?
- Serial casting
- Biceps brachii tendon transfer
- Arthroscopic elbow capsular release
- Full-time elbow extension splinting
- Nighttime elbow extension splinting
- Serial casting
RECOMMENDED READINGS
Ho ES, Roy T, Stephens D, Clarke HM. Serial casting and splinting of elbow contractures in children with obstetric brachial plexus palsy. J Hand Surg Am. 2010 Jan;35(1):84-91. doi: 10.1016/j.jhsa.2009.09.014. Epub 2009 Dec 3. PubMed PMID: 19959298.
Sheffler LC, Lattanza L, Hagar Y, Bagley A, James MA. The prevalence, rate of progression, and treatment of elbow flexion contracture in children with brachial plexus birth palsy. J Bone Joint Surg Am. 2012 Mar 7;94(5):403-9. doi: 10.2106/JBJS.J.00750. PubMed PMID: 22398733; PubMed Central PMCID: PMC3284859.
- Figure 56 is the lateral radiograph of an 11-year-old boy who has back pain. Based on this radiographic finding, what is the most likely cause of his back pain?
- Trauma
- Infection
- Metabolic disease
- Congenital anomaly
- Developmental anomaly
- Infection
RECOMMENDED READINGS
Jain AK. Tuberculosis of the spine: a fresh look at an old disease. J Bone Joint Surg Br. 2010 Jul;92(7):905-13. doi: 10.1302/0301-620X.92B7.24668. Review. PubMed PMID: 20595106.
Chunguang Z, Limin L, Rigao C, Yueming S, Hao L, Qingquan K, Quan G, Tao L, Jiancheng Z. Surgical treatment of kyphosis in children in healed stages of spinal tuberculosis. J Pediatr Orthop. 2010 Apr- May;30(3):271-6. doi: 10.1097/BPO.0b013e3181d39899. PubMed PMID: 20357594.
- Figures 64a and 64b are the radiographs of a 1-year-old girl who underwent bilateral reconstructive surgery for a similar bilateral hand deformity. During embryogenesis, there was a problem with control of the anteroposterior (AP) axis (thumb to small finger, great toe to small toe) in all of her developing limb buds. The AP axis, which is under the control of an area of tissue in the posterior aspect of the apical ectodermal ridge, is known as the
- area for preaxial focus (APF).
- area of digital specification (ADS).
- zone of polarizing activity (ZPA).
- zone of axial determination (ZAD).
- sonic hedgehog zone (SHH).
- zone of polarizing activity (ZPA).
RECOMMENDED READINGS
Herring JA. Disorders of the upper extremity. In: Herring JA, ed. Tachdjian’s Pediatric Orthopaedics, 3rd ed. Philadelphia, PA: WB Saunders; 2002:379-512.
Waters PM. The upper limb. In: Morrissy RT, Weinstein SL, eds. Lovell and Winter’s Pediatric Orthopaedics. 6th ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2006:921-986.
- Figures 70a and 70b are the pelvic radiographs of an 11-year-old boy who has right hip pain. The alignment of the right limb is
- flexed.
- adducted.
- abducted.
- internally rotated.
- externally rotated.
- externally rotated.
RECOMMENDED READINGS
Peck K, Herrera-Soto J. Slipped capital femoral epiphysis: what’s new? Orthop Clin North Am. 2014 Jan;45(1):77-86. doi: 10.1016/j.ocl.2013.09.002. Review. PubMed PMID: 24267209.
Schoenecker PL, Gordon JE, Luhmann SJ, Dobbs MB, Keeler KA, Clohisy JC. A treatment algorithm for stable slipped capital femoral epiphysis deformity. J Pediatr Orthop. 2013 Jul-Aug;33 Suppl 1:S103-11. doi: 10.1097/BPO.0b013e31829774d6. PubMed PMID: 23764781
- Figures 74a and 74b are the clinical photographs of a newborn infant who has unilateral right arm swelling, hypoperfusion, and skin desquamation after a prolonged labor. It was noted that the right arm was adducted and flexed at the elbow behind the infant’s back during delivery. What is the most appropriate next step?
- Neonatal sepsis workup
- Hematology evaluation for a bleeding disorder
- Elevate and ice the arm with a repeat exam in 2 hours
- Emergent fasciotomy for neonatal compartment syndrome
- Local wound care and immediate compression dressings for edema control
- Emergent fasciotomy for neonatal compartment syndrome
RECOMMENDED READINGS
Ragland R 3rd, Moukoko D, Ezaki M, Carter PR, Mills J. Forearm compartment syndrome in the newborn: report of 24 cases. J Hand Surg Am. 2005 Sep;30(5):997-1003. PubMed PMID: 16182057.
Allen LM, Benacci JC, Trane RN 3rd, Driscoll RJ. A case of neonatal compartment syndrome: importance of early diagnosis in a rare and debilitating condition. Am J Perinatol. 2010 Feb;27(2):103-6. doi: 10.1055/ s-0029-1224870. Epub 2009 Jun 5. PubMed PMID: 19504429.
- Marfan syndrome is caused by a defect in the gene that encodes for which protein?
- Fibrillin-1
- Fibrillin-2
- Neurofibromin
- Type I collagen
- Type III collagen
- Fibrillin-1
RECOMMENDED READINGS
Shirley ED, Sponseller PD. Marfan syndrome. J Am Acad Orthop Surg. 2009 Sep;17(9):572-81. Review. PubMed PMID: 19726741.
Dean JC. Marfan syndrome: clinical diagnosis and management. Eur J Hum Genet. 2007 Jul;15(7):724- 33. Epub 2007 May 9. Review. PubMed PMID: 17487218.
- Figures 86a and 86b are the radiographs of an infant who has a leg deformity. Treatment for this deformity should include
- amputation.
- observation.
- osteotomy at 1 year of age.
- osteotomy at 4 years of age
- guided tibia growth at 8 years of age.
- observation.
RECOMMENDED READINGS
Shah HH, Doddabasappa SN, Joseph B. Congenital posteromedial bowing of the tibia: a retrospective analysis of growth abnormalities in the leg. J Pediatr Orthop B. 2009 May;18(3):120-8. doi: 10.1097/ BPB.0b013e328329dc86. PubMed PMID: 19339901.
Pappas AM. Congenital posteromedial bowing of the tibia and fibula. J Pediatr Orthop. 1984 Sep;4(5):525-31. PubMed PMID: 6490868.
- Figures 92a and 92b are the radiographs of a 5-year-old boy who was treated at birth in a Pavlik harness for a right hip dislocation. Since that time, he has developed typically, has had no hip pain, and has a typical gait. The left acetabular index is 15 degrees and the right is 31 degrees. What is the best next step?
- Continued observation
- Right hip Pemberton osteotomy
- Right hip proximal femoral varus derotational osteotomy
- Bilateral hip Pemberton osteotomies
- Nighttime abduction bracing
- Right hip Pemberton osteotomy
RECOMMENDED READINGS
Faciszewski T, Kiefer GN, Coleman SS. Pemberton osteotomy for residual acetabular dysplasia in children who have congenital dislocation of the hip. J Bone Joint Surg Am. 1993 May;75(5):643-9. PubMed PMID: 8501078.
Gillingham BL, Sanchez AA, Wenger DR. Pelvic osteotomies for the treatment of hip dysplasia in children and young adults. J Am Acad Orthop Surg. 1999 Sep-Oct;7(5):325-37. Review. PubMed PMID: 10504359.