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Unni Narayanan

TitleOrthopaedic Surgeon
InstitutionThe Hospital for Sick Children
DepartmentOrthopaedic Surgery
Address555 University Avenue
Toronto ON M5G 1X8
Phone416-813-1500
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Shore BJ, Martinkevich P, Riazi M, Baird E, Encisa C, Willoughby K, Narayanan UG. Reliability of Radiographic Assessments of the Hip in Cerebral Palsy. J Pediatr Orthop. 2018 Dec 26. PMID: 30589680.
      View in: PubMed
    2. Lim KBL, Laine T, Chooi JY, Lye WK, Lee BJY, Narayanan UG. Early morbidity associated with fasciotomies for acute compartment syndrome in children. J Child Orthop. 2018 Oct 01; 12(5):480-487. PMID: 30294372.
      View in: PubMed
    3. Propp R, McAdam L, Davis AM, Salbach NM, Weir S, Encisa C, Narayanan UG. Development and content validation of the Muscular Dystrophy Child Health Index of Life with Disabilities questionnaire for children with Duchenne muscular dystrophy. Dev Med Child Neurol. 2019 Jan; 61(1):75-81. PMID: 30058069.
      View in: PubMed
    4. Miyanji F, Nasto LA, Sponseller PD, Shah SA, Samdani AF, Lonner B, Yaszay B, Clements DH, Narayanan U, Newton PO. Assessing the Risk-Benefit Ratio of Scoliosis Surgery in Cerebral Palsy: Surgery Is Worth It. J Bone Joint Surg Am. 2018 Apr 04; 100(7):556-563. PMID: 29613924.
      View in: PubMed
    5. Thomason P, Tan A, Donnan A, Rodda J, Graham HK, Narayanan U. The Gait Outcomes Assessment List (GOAL): validation of a new assessment of gait function for children with cerebral palsy. Dev Med Child Neurol. 2018 06; 60(6):618-623. PMID: 29573409.
      View in: PubMed
    6. Danino B, Rödl R, Herzenberg JE, Shabtai L, Grill F, Narayanan U, Segev E, Wientroub S. Guided growth: preliminary results of a multinational study of 967 physes in 537 patients. J Child Orthop. 2018 Feb 01; 12(1):91-96. PMID: 29456760.
      View in: PubMed
    7. Nousiainen MT, Mironova P, Hynes M, Glover Takahashi S, Reznick R, Kraemer W, Alman B, Ferguson P, Safir O, Sonnadara R, Murnaghan J, Ogilvie-Harris D, Theodoropoulos J, Hall J, Syed K, Howard A, Ford M, Daniels T, Dwyer T, Veillette C, Wadey V, Narayanan U, Yee A, Whyne C. Eight-year outcomes of a competency-based residency training program in orthopedic surgery. Med Teach. 2018 01 18; 1-13. PMID: 29343150.
      View in: PubMed
    8. Shore BJ, Shrader MW, Narayanan U, Miller F, Graham HK, Mulpuri K. Hip Surveillance for Children With Cerebral Palsy: A Survey of the POSNA Membership. J Pediatr Orthop. 2017 Oct/Nov; 37(7):e409-e414. PMID: 28877095.
      View in: PubMed
    9. Jain A, Sponseller PD, Shah SA, Samdani A, Cahill PJ, Yaszay B, Njoku DB, Abel MF, Newton PO, Marks MC, Narayanan UG. Subclassification of GMFCS Level-5 Cerebral Palsy as a Predictor of Complications and Health-Related Quality of Life After Spinal Arthrodesis. J Bone Joint Surg Am. 2016 Nov 02; 98(21):1821-1828. PMID: 27807115.
      View in: PubMed
    10. Dodds CB, Bjornson KF, Sweeney JK, Narayanan UG. The effect of supported physical activity on parental-reported sleep qualities and pain severity in children with medical complexity. J Pediatr Rehabil Med. 2016 09 02; 9(3):195-206. PMID: 27612079.
      View in: PubMed
    11. Narayanan UG. 'Making a Difference … Are We?'. Dev Med Child Neurol. 2016 Sep; 58(9):891. PMID: 27518535.
      View in: PubMed
    12. Upasani VV, Bomar JD, Matheney TH, Sankar WN, Mulpuri K, Price CT, Moseley CF, Kelley SP, Narayanan U, Clarke NM, Wedge JH, Castañeda P, Kasser JR, Foster BK, Herrera-Soto JA, Cundy PJ, Williams N, Mubarak SJ. Evaluation of Brace Treatment for Infant Hip Dislocation in a Prospective Cohort: Defining the Success Rate and Variables Associated with Failure. J Bone Joint Surg Am. 2016 Jul 20; 98(14):1215-21. PMID: 27440570.
      View in: PubMed
    13. Elema A, Zalmstra TA, Boonstra AM, Narayanan UG, Reinders-Messelink HA, V D Putten AA. Pain and hospital admissions are important factors associated with quality of life in nonambulatory children. Acta Paediatr. 2016 Sep; 105(9):e419-25. PMID: 27250697.
      View in: PubMed
    14. Mulpuri K, Schaeffer EK, Kelley SP, Castañeda P, Clarke NM, Herrera-Soto JA, Upasani V, Narayanan UG, Price CT. What Is the Impact of Center Variability in a Multicenter International Prospective Observational Study on Developmental Dysplasia of the Hip? Clin Orthop Relat Res. 2016 May; 474(5):1138-45. PMID: 26891895; PMCID: PMC4814398 [Available on 05/01/17].
    15. Hesketh K, Sankar W, Joseph B, Narayanan U, Mulpuri K. Inter-observer and intra-observer reliability in the radiographic diagnosis of avascular necrosis of the femoral head following reconstructive hip surgery in children with cerebral palsy. J Child Orthop. 2016 Apr; 10(2):143-7. PMID: 26972813; PMCID: PMC4837166.
    16. Redouane B, Cohen E, Stephens D, Keilty K, Mouzaki M, Narayanan U, Moraes T, Amin R. Parental Perceptions of Quality of Life in Children on Long-Term Ventilation at Home as Compared to Enterostomy Tubes. PLoS One. 2016; 11(2):e0149999. PMID: 26914939; PMCID: PMC4767710.
    17. Deimling S, Sotiropoulos C, Lau K, Chaudhry S, Sturgeon K, Kelley S, Narayanan U, Howard A, Hui CC, Hopyan S. Tibial hemimelia associated with GLI3 truncation. J Hum Genet. 2016 May; 61(5):443-6. PMID: 26791356.
      View in: PubMed
    18. Boutis K, Plint A, Stimec J, Miller E, Babyn P, Schuh S, Brison R, Lawton L, Narayanan UG. Radiograph-Negative Lateral Ankle Injuries in Children: Occult Growth Plate Fracture or Sprain? JAMA Pediatr. 2016 Jan; 170(1):e154114. PMID: 26747077.
      View in: PubMed
    19. Hamdy RC, Montpetit K, Aiona MD, MacKenzie WG, van Bosse HJ, Narayanan U, Raney EM, Chafetz RS, Thomas SE, Weir S, Gregory S, Yorgova P, Takahashi S, Rinaldi M, Zhang X, Dahan-Oliel N. Safety and Efficacy of Botulinum Toxin A in Children Undergoing Lower Limb Lengthening and Deformity Correction: Results of a Double-blind, Multicenter, Randomized Controlled Trial. J Pediatr Orthop. 2016 Jan; 36(1):48-55. PMID: 25730290.
      View in: PubMed
    20. Findlay B, Switzer L, Narayanan U, Chen S, Fehlings D. Investigating the impact of pain, age, Gross Motor Function Classification System, and sex on health-related quality of life in children with cerebral palsy. Dev Med Child Neurol. 2016 Mar; 58(3):292-7. PMID: 26426208.
      View in: PubMed
    21. Boutis K, von Keyserlingk C, Willan A, Narayanan UG, Brison R, Grootendorst P, Plint AC, Parker M, Goeree R. Cost Consequence Analysis of Implementing the Low Risk Ankle Rule in Emergency Departments. Ann Emerg Med. 2015 Nov; 66(5):455-463.e4. PMID: 26187612.
      View in: PubMed
    22. Narayanan U, Mulpuri K, Sankar WN, Clarke NM, Hosalkar H, Price CT. Reliability of a New Radiographic Classification for Developmental Dysplasia of the Hip. J Pediatr Orthop. 2015 Jul-Aug; 35(5):478-84. PMID: 25264556; PMCID: PMC4484663.
    23. Narayanan UG. Should children with cerebral palsy exercise? Dev Med Child Neurol. 2015 Jul; 57(7):597-598. PMID: 25881489.
      View in: PubMed
    24. Dodds CB, Bjornson KF, Sweeney JK, Narayanan UG. The effect of supported physical activity on parental-reported health-related quality of life in children with medical complexity. J Pediatr Rehabil Med. 2015; 8(2):83-95. PMID: 26409862.
      View in: PubMed
    25. Boutis K, Howard A, Constantine E, Cuomo A, Somji Z, Narayanan UG. Evidence into practice: pediatric orthopaedic surgeon use of removable splints for common pediatric fractures. J Pediatr Orthop. 2015 Jan; 35(1):18-23. PMID: 24887079.
      View in: PubMed
    26. Jung NH, Pereira B, Nehring I, Brix O, Bernius P, Schroeder SA, Kluger GJ, Koehler T, Beyerlein A, Weir S, von Kries R, Narayanan UG, Berweck S, Mall V. Does hip displacement influence health-related quality of life in children with cerebral palsy? Dev Neurorehabil. 2014 Dec; 17(6):420-5. PMID: 25057804.
      View in: PubMed
    27. Boutis K, Howard A, Constantine E, Cuomo A, Narayanan U. Evidence into practice: emergency physician management of common pediatric fractures. Pediatr Emerg Care. 2014 Jul; 30(7):462-8. PMID: 24977995.
      View in: PubMed
    28. Sung KH, Kwon SS, Narayanan UG, Chung CY, Lee KM, Lee SY, Lee DJ, Park MS. Transcultural adaptation and validation of the Korean version of Caregiver Priorities & Child Health Index of Life with Disabilities (CPCHILD). Disabil Rehabil. 2015; 37(7):620-4. PMID: 24963834.
      View in: PubMed
    29. Zalmstra TA, Elema A, Boonstra AM, Maathuis KG, Narayanan UG, v d Putten AA, Reinders-Messelink HA, Vlaskamp C, Lindeboom R. Validation of the Caregiver Priorities and Child Health Index of Life with Disabilities (CPCHILD) in a sample of Dutch non-ambulatory children with cerebral palsy. Disabil Rehabil. 2015; 37(5):411-6. PMID: 24856788.
      View in: PubMed
    30. K Graham H, Narayanan UG. Salvage hip surgery in severe cerebral palsy: some answers, more questions? Bone Joint J. 2014 May; 96-B(5):567-8. PMID: 24788487.
      View in: PubMed
    31. Jung NH, Brix O, Bernius P, Schroeder AS, Kluger GJ, Beyerlein A, Weir S, von Kries R, Narayanan UG, Mall V, Berweck S. German translation of the caregiver priorities and child health index of life with disabilities questionnaire: test-retest reliability and correlation with gross motor function in children with cerebral palsy. Neuropediatrics. 2014 Oct; 45(5):289-93. PMID: 24700153.
      View in: PubMed
    32. Pellegrino LA, Ortolan EV, Magalhães CS, Viana AA, Narayanan UG. Brazilian Portuguese translation and cross-cultural adaptation of the "Caregiver Priorities and Child Health Index of Life with Disabilities" (CPCHILD) questionnaire. BMC Pediatr. 2014 Feb 01; 14:30. PMID: 24485229; PMCID: PMC3915619.
    33. Gardner RO, Bradley CS, Howard A, Narayanan UG, Wedge JH, Kelley SP. The incidence of avascular necrosis and the radiographic outcome following medial open reduction in children with developmental dysplasia of the hip: a systematic review. Bone Joint J. 2014 Feb; 96-B(2):279-86. PMID: 24493198.
      View in: PubMed
    34. Escott BG, Ravi B, Weathermon AC, Acharya J, Gordon CL, Babyn PS, Kelley SP, Narayanan UG. EOS low-dose radiography: a reliable and accurate upright assessment of lower-limb lengths. J Bone Joint Surg Am. 2013 Dec 04; 95(23):e1831-7. PMID: 24306706.
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    35. Boutis K, Grootendorst P, Willan A, Plint AC, Babyn P, Brison RJ, Sayal A, Parker M, Mamen N, Schuh S, Grimshaw J, Johnson D, Narayanan U. Effect of the Low Risk Ankle Rule on the frequency of radiography in children with ankle injuries. CMAJ. 2013 Oct 15; 185(15):E731-8. PMID: 23939215; PMCID: PMC3796622.
    36. Cohen E, Lacombe-Duncan A, Spalding K, MacInnis J, Nicholas D, Narayanan UG, Gordon M, Margolis I, Friedman JN. Integrated complex care coordination for children with medical complexity: a mixed-methods evaluation of tertiary care-community collaboration. BMC Health Serv Res. 2012 Oct 23; 12:366. PMID: 23088792; PMCID: PMC3529108.
    37. Narayanan UG. Management of children with ambulatory cerebral palsy: an evidence-based review. J Pediatr Orthop. 2012 Sep; 32 Suppl 2:S172-81. PMID: 22890458.
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    38. Alves C, Steele M, Narayanan U, Howard A, Alman B, Wright JG. Open reduction and internal fixation of unstable slipped capital femoral epiphysis by means of surgical dislocation does not decrease the rate of avascular necrosis: a preliminary study. J Child Orthop. 2012 Aug; 6(4):277-83. PMID: 23904893; PMCID: PMC3425698.
    39. Fehlings D, Narayanan U, Andersen J, Beauchamp R, Gorter JW, Kawamura A, Kiefer G, Mason M, McCormick A, Mesterman R, Switzer L, Watt J. Botulinum toxin-A use in paediatric hypertonia: Canadian practice patterns. Can J Neurol Sci. 2012 Jul; 39(4):508-15. PMID: 22728860.
      View in: PubMed
    40. Narayanan UG, Phillips JH. Flexibility in fixation: an update on femur fractures in children. J Pediatr Orthop. 2012 Jun; 32 Suppl 1:S32-9. PMID: 22588101.
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    41. Webb BD, Barrera M, Beyene J, Carcao M, Daneman D, Elliott I, Gong GW, Halperin IJ, Lord S, Melville H, Narayanan UG, Ota S, Solomon M, Sung L, Young NL, Zachos M, Feldman BM. Determinants of quality of life in children with chronic somatic disease: pilot data from the GapS Questionnaire. Qual Life Res. 2013 Mar; 22(2):339-49. PMID: 22461136.
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    42. Narayanan UG. To do or not to do the other hip? Dev Med Child Neurol. 2012 Mar; 54(3):201-2. PMID: 22268615.
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    43. Narayanan UG. Dexamethasone added to antibiotics improved clinical and laboratory outcomes in children with septic arthritis. J Bone Joint Surg Am. 2011 Nov 16; 93(22):2124. PMID: 22262386.
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    44. Janicki JA, Wright JG, Weir S, Narayanan UG. A comparison of ankle foot orthoses with foot abduction orthoses to prevent recurrence following correction of idiopathic clubfoot by the Ponseti method. J Bone Joint Surg Br. 2011 May; 93(5):700-4. PMID: 21511939.
      View in: PubMed
    45. Narayanan UG. Botulinum toxin: does the black box warning justify change in practice? Dev Med Child Neurol. 2011 Feb; 53(2):101-2. PMID: 21244406.
      View in: PubMed
    46. Narayanan UG. Hip surveillance for children with cerebral palsy: are the Australian standards the gold standard? J Pediatr Rehabil Med. 2011; 4(3):235-6; discussion 237-8. PMID: 22207100.
      View in: PubMed
    47. Bagley AM, Gorton GE, Bjornson K, Bevans K, Stout JL, Narayanan U, Tucker CA. Factor- and item-level analyses of the 38-item activities scale for kids-performance. Dev Med Child Neurol. 2011 Feb; 53(2):161-6. PMID: 20964671.
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    48. Boutis K, Constantine E, Schuh S, Pecaric M, Stephens D, Narayanan UG. Pediatric emergency physician opinions on ankle radiograph clinical decision rules. Acad Emerg Med. 2010 Jul; 17(7):709-17. PMID: 20653584.
      View in: PubMed
    49. Boutis K, Narayanan UG, Dong FF, Mackenzie H, Yan H, Chew D, Babyn P. Magnetic resonance imaging of clinically suspected Salter-Harris I fracture of the distal fibula. Injury. 2010 Aug; 41(8):852-6. PMID: 20494352.
      View in: PubMed
    50. Ramseier LE, Janicki JA, Weir S, Narayanan UG. Femoral fractures in adolescents: a comparison of four methods of fixation. J Bone Joint Surg Am. 2010 May; 92(5):1122-9. PMID: 20439657.
      View in: PubMed
    51. Montpetit K, Hamdy RC, Dahan-Oliel N, Zhang X, Narayanan UG. Measurement of health-related quality of life in children undergoing external fixator treatment for lower limb deformities. J Pediatr Orthop. 2009 Dec; 29(8):920-6. PMID: 19934710.
      View in: PubMed
    52. Janicki JA, Narayanan UG, Harvey B, Roy A, Ramseier LE, Wright JG. Treatment of neuromuscular and syndrome-associated (nonidiopathic) clubfeet using the Ponseti method. J Pediatr Orthop. 2009 Jun; 29(4):393-7. PMID: 19461383.
      View in: PubMed
    53. Janicki JA, Narayanan UG, Harvey BJ, Roy A, Weir S, Wright JG. Comparison of surgeon and physiotherapist-directed Ponseti treatment of idiopathic clubfoot. J Bone Joint Surg Am. 2009 May; 91(5):1101-8. PMID: 19411458.
      View in: PubMed
    54. Hamdy RC, Montpetit K, Ruck-Gibis J, Thorstad K, Raney E, Aiona M, Platt R, Finley A, Mackenzie W, McCarthy J, Narayanan U. Safety and efficacy of botox injection in alleviating post-operative pain and improving quality of life in lower extremity limb lengthening and deformity correction. Trials. 2007 Sep 28; 8:27. PMID: 17903262; PMCID: PMC2151066.
    55. Krishnamurthy G, Connolly BL, Narayanan U, Babyn PS. Imaging findings in external snapping hip syndrome. Pediatr Radiol. 2007 Dec; 37(12):1272-4. PMID: 17899059.
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    56. Donaldson S, Stephens D, Howard A, Alman B, Narayanan U, Wright JG. Surgical decision making in adolescent idiopathic scoliosis. Spine (Phila Pa 1976). 2007 Jun 15; 32(14):1526-32. PMID: 17572623.
      View in: PubMed
    57. Boutis K, Willan AR, Babyn P, Narayanan UG, Alman B, Schuh S. A randomized, controlled trial of a removable brace versus casting in children with low-risk ankle fractures. Pediatrics. 2007 Jun; 119(6):e1256-63. PMID: 17545357.
      View in: PubMed
    58. Wainwright AM, Narayanan UG. A new technique for reduction of paediatric femoral fractures using elastic stable intramedullary nails. Ann R Coll Surg Engl. 2007 May; 89(4):432-4. PMID: 17539186; PMCID: PMC1963570.
    59. Gong GW, Barrera M, Beyene J, Bhat S, Carcao M, Lord S, Narayanan UG, Sung L, Young NL, Feldman BM. The Gap Study (GapS) interview--developing a process to determine the meaning and determinants of quality of life in children with arthritis and rheumatic disease. Clin Exp Rheumatol. 2007 May-Jun; 25(3):486-93. PMID: 17631751.
      View in: PubMed
    60. Narayanan UG. The role of gait analysis in the orthopaedic management of ambulatory cerebral palsy. Curr Opin Pediatr. 2007 Feb; 19(1):38-43. PMID: 17224660.
      View in: PubMed
    61. Donaldson S, Hedden D, Stephens D, Alman B, Howard A, Narayanan U, Wright JG. Surgeon reliability in rating physical deformity in adolescent idiopathic scoliosis. Spine (Phila Pa 1976). 2007 Feb 01; 32(3):363-7. PMID: 17268269.
      View in: PubMed
    62. Narayanan UG, Fehlings D, Weir S, Knights S, Kiran S, Campbell K. Initial development and validation of the Caregiver Priorities and Child Health Index of Life with Disabilities (CPCHILD). Dev Med Child Neurol. 2006 Oct; 48(10):804-12. PMID: 16978459.
      View in: PubMed
    63. Narayanan UG, Hyman JE, Wainwright AM, Rang M, Alman BA. Complications of elastic stable intramedullary nail fixation of pediatric femoral fractures, and how to avoid them. J Pediatr Orthop. 2004 Jul-Aug; 24(4):363-9. PMID: 15205616.
      View in: PubMed
    64. Narayanan UG. Reduction increasing osteonecrosis risk in slipped capital femoral epiphysis. J Bone Joint Surg Am. 2004 Feb; 86-A(2):437; author reply 437. PMID: 14960701.
      View in: PubMed
    65. Narayanan UG, Wright JG. Evidence-based medicine: a prescription to change the culture of pediatric orthopaedics. J Pediatr Orthop. 2002 May-Jun; 22(3):277-8. PMID: 11961438.
      View in: PubMed
    66. Schutte LM, Narayanan U, Stout JL, Selber P, Gage JR, Schwartz MH. An index for quantifying deviations from normal gait. Gait Posture. 2000 Feb; 11(1):25-31. PMID: 10664482.
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