James Kasser's research focuses on the development, testing, and implementation of procedures in orthopedic surgery as well as the evaluation of existing techniques and practices.
Research Background
James Kasser received his MD from Tufts University School of Medicine. He completed an internship at Maine Medical Center, a residency at New England Medical Center, and a fellowship at the Alfred I. duPont Institute. He is past President of the American Board of Orthopedic Surgery, and the Pediatric Orthopedic Society of North America (POSNA).
Selected Publications
Tsai A, Chaudry G, Spencer S, Kasser JR, Alomari AI. Misdiagnosis of knee venous malformation as juvenile idiopathic arthritis. J Pediatr Orthop 2011:31(6):683-90
Glotzbecker MP, Kocher MS, Sundel RP, Shore BJ, Spencer SA, Kasser JR. Primary lyme arthritis of the pediatric hip. J Pediatr Orthop 2011:31(7): 787-90
Mahan ST, Osborn E, Bae DS, Waters PM, Kasser JR, Kocher MS, Snyder BD, Hresko MT. Changing practice patterns: the impact of a randomized clinical trial on surgeons preference for treatment of type 3 supracondylar humerus fractures. J Pediatr Orthop 2012:32(4):340-5.
Education
Medical School
Tufts University School of Medicine
1976
Boston
MA
Internship
Maine Medical Center
1977
Portland
ME
Residency
New England Medical Center
1981
Boston
MA
Fellowship
Aldred I. Dupont Institute
1982
Wilmington
DE
Media
Answers Blog
Generations of excellence in lower extremity care: Dr. Kasser and Dr. May
Answers Blog
Limb-lengthening surgery: A look at the pros and cons
Publications
Hazard of Failed Nonoperative Management for Symptomatic Accessory Navicular in Children and Adolescents: A Population-Based Case-Cohort Study. J Pediatr Orthop. 2024 Oct 01; 44(9):e809-e815. View Abstract
MRI of the Spine in Patients who Toe Walk: Is There a Role? J Pediatr Orthop. 2024 Apr 01; 44(4):267-272. View Abstract
Jumping on the Bandwagon: Comparing the Efficacy of Chlorhexidine Versus Povidone-Iodine Preoperative Skin Antiseptic in Preventing Surgical Site Infections Following Pediatric Orthopaedic Surgery. J Pediatr Orthop. 2022 Jan 01; 42(1):e39-e44. View Abstract
Prospective Evaluation of Tarsal Coalition Excision Show Significant Improvements in Pain and Function. J Pediatr Orthop. 2021 Oct 01; 41(9):e828-e832. View Abstract
Epiphysiodesis for Leg Length Discrepancy: A Cost Analysis of Drill Versus Screw Technique. J Surg Orthop Adv. 2021; 30(3):181-184. View Abstract
Congenital Pseudarthrosis of the Fibula: Controlling Ankle Valgus in a Heterogenous Condition. J Pediatr Orthop. 2020 Aug; 40(7):e647-e655. View Abstract
Prospective evaluation of parental anxiety related to newborn foot disorder. J Child Orthop. 2019 Oct 01; 13(5):500-507. View Abstract
Multisource Evaluation of Surgeon Behavior Is Associated With Malpractice Claims. Ann Surg. 2019 07; 270(1):84-90. View Abstract
A comparison of screw versus drill and curettage epiphysiodesis to correct leg-length discrepancy. J Child Orthop. 2018 Oct 01; 12(5):509-514. View Abstract
Lower-extremity growth patterns and skeletal maturation in children with unilateral fibular hemimelia. Pediatr Radiol. 2019 01; 49(1):122-127. View Abstract
Constant inhibition in congenital lower extremity shortening: does it begin in utero? Pediatr Radiol. 2018 09; 48(10):1451-1462. View Abstract
Closed Reduction and Percutaneous Pinning of Pediatric Supracondylar Humeral Fractures. JBJS Essent Surg Tech. 2018 Jun 27; 8(2):e10. View Abstract
Spinal dysraphism and dislocated hip: Beware of anomalous sciatic nerve through Ilium, a case report. Medicine (Baltimore). 2018 Mar; 97(12):e9770. View Abstract
Clubfoot relapse: does presentation differ based on age at initial relapse? J Child Orthop. 2017 Oct 01; 11(5):367-372. View Abstract
Subtalar Coalitions: Does the Morphology of the Subtalar Joint Involvement Influence Outcomes After Coalition Excision? J Foot Ankle Surg. 2017 Jul - Aug; 56(4):797-801. View Abstract
Surgical Reconstruction of Metatarsal Type Preaxial Polydactyly Using an Amalgamating Osteotomy. J Pediatr Orthop. 2016 Sep; 36(6):e66-70. View Abstract
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. View Abstract
Treatment dilemma in multiple metatarsal fractures: when to operate? J Pediatr Orthop B. 2016 Jul; 25(4):354-60. View Abstract
Boston Children's Hospital orthopedic surgery program. J Pediatr Orthop B. 2016 Jul; 25(4):289-91. View Abstract
Patient-reported Outcomes of Tarsal Coalitions Treated With Surgical Excision. J Pediatr Orthop. 2015 Sep; 35(6):583-8. View Abstract
Likelihood of surgery in isolated pediatric fifth metatarsal fractures. J Pediatr Orthop. 2015 Apr-May; 35(3):296-302. View Abstract
Medial versus anterior open reduction for developmental hip dislocation in age-matched patients. J Pediatr Orthop. 2015 Jan; 35(1):50-6. View Abstract
Maternal cigarette, alcohol, and coffee consumption in relation to risk of clubfoot. Paediatr Perinat Epidemiol. 2015 Jan; 29(1):3-10. View Abstract
Complications after modified Dunn osteotomy for the treatment of adolescent slipped capital femoral epiphysis. J Pediatr Orthop. 2014 Oct-Nov; 34(7):661-7. View Abstract
Satisfactory patient-based outcomes after surgical treatment for idiopathic clubfoot: includes surgeon's individualized technique. J Pediatr Orthop. 2014 Sep; 34(6):631-8. View Abstract
Medication use in pregnancy in relation to the risk of isolated clubfoot in offspring. Am J Epidemiol. 2014 Jul 01; 180(1):86-93. View Abstract
Prenatal screening for clubfoot: what factors predict prenatal detection? Prenat Diagn. 2014 Apr; 34(4):389-93. View Abstract
Fibro-adipose vascular anomaly: clinical-radiologic-pathologic features of a newly delineated disorder of the extremity. J Pediatr Orthop. 2014 Jan; 34(1):109-17. View Abstract
Is it worthwhile to routinely ultrasound screen children with idiopathic clubfoot for hip dysplasia? J Pediatr Orthop. 2013 Dec; 33(8):847-51. View Abstract
Prospective evaluation of a prenatal sonographic clubfoot classification system. Fetal Diagn Ther. 2013; 34(4):236-40. View Abstract
Descriptive epidemiology of idiopathic clubfoot. Am J Med Genet A. 2013 Jul; 161A(7):1569-78. View Abstract
Changing practice patterns: the impact of a randomized clinical trial on surgeons preference for treatment of type 3 supracondylar humerus fractures. J Pediatr Orthop. 2012 Jun; 32(4):340-5. View Abstract
Primary lyme arthritis of the pediatric hip. J Pediatr Orthop. 2011 Oct-Nov; 31(7):787-90. View Abstract
Misdiagnosis of knee venous malformation as juvenile idiopathic arthritis. J Pediatr Orthop. 2011 Sep; 31(6):683-90. View Abstract
A policy-based intervention for the reduction of communication breakdowns in inpatient surgical care: results from a Harvard surgical safety collaborative. Ann Surg. 2011 May; 253(5):849-54. View Abstract
Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome. PLoS Genet. 2011 Apr; 7(4):e1002050. View Abstract
Complications of talus fractures in children. J Pediatr Orthop. 2010 Dec; 30(8):779-84. View Abstract
Maintenance of certification for pediatric orthopaedists. J Pediatr Orthop. 2009 Dec; 29(8):844-6. View Abstract
Diffuse lipofibromatosis of the lower extremity masquerading as a vascular anomaly. Ann Plast Surg. 2009 Jun; 62(6):703-6. View Abstract
Post-closed reduction perfusion magnetic resonance imaging as a predictor of avascular necrosis in developmental hip dysplasia: a preliminary report. J Pediatr Orthop. 2009 Jan-Feb; 29(1):14-20. View Abstract
Prediction of spatial orientation and morphology of calcaneonavicular coalitions. Foot Ankle Int. 2008 Feb; 29(2):205-12. View Abstract
Orthopedic board certification and physician performance: an analysis of medical malpractice, hospital disciplinary action, and state medical board disciplinary action rates. Am J Orthop (Belle Mead NJ). 2008 Feb; 37(2):73-5. View Abstract
Does swaddling influence developmental dysplasia of the hip? Pediatrics. 2008 Jan; 121(1):177-8. View Abstract
Operative treatment of intraarticular calcaneal fractures in the pediatric population. J Pediatr Orthop. 2007 Dec; 27(8):856-62. View Abstract
Lateral entry compared with medial and lateral entry pin fixation for completely displaced supracondylar humeral fractures in children. A randomized clinical trial. J Bone Joint Surg Am. 2007 Apr; 89(4):706-12. View Abstract
Increased blood lead levels in an adolescent girl from a retained bullet. A case report. J Bone Joint Surg Am. 2006 Dec; 88(12):2726-9. View Abstract
Proximal femoral epiphysiolysis during reduction of hip dislocation in adolescents. J Pediatr Orthop. 2006 May-Jun; 26(3):371-4. View Abstract
Osteotomy does not improve early outcome after slipped capital femoral epiphysis. J Pediatr Orthop B. 2006 Mar; 15(2):87-92. View Abstract
Hip arthroscopy in children and adolescents. J Pediatr Orthop. 2005 Sep-Oct; 25(5):680-6. View Abstract
Location of treatment of supracondylar fractures of the humerus in children. Clin Orthop Relat Res. 2005 May; (434):110-3. View Abstract
Serum levels of nickel and chromium after instrumented posterior spinal arthrodesis. Spine (Phila Pa 1976). 2005 Apr 15; 30(8):923-6. View Abstract
Waterproof casts for immobilization of children's fractures and sprains. J Pediatr Orthop. 2005 Jan-Feb; 25(1):56-9. View Abstract
Prophylactic pinning of the contralateral hip after unilateral slipped capital femoral epiphysis. J Bone Joint Surg Am. 2004 Dec; 86(12):2658-65. View Abstract
Analysis of 51 tibial triplane fractures using CT with multiplanar reconstruction. AJR Am J Roentgenol. 2004 Nov; 183(5):1489-95. View Abstract
Validation of a clinical prediction rule for the differentiation between septic arthritis and transient synovitis of the hip in children. J Bone Joint Surg Am. 2004 Aug; 86(8):1629-35. View Abstract
Delay in diagnosis of slipped capital femoral epiphysis. Pediatrics. 2004 Apr; 113(4):e322-5. View Abstract
Wilms tumor screening is unnecessary in Klippel-Trenaunay syndrome. Pediatrics. 2004 Apr; 113(4):e326-9. View Abstract
A clinical practice guideline for treatment of septic arthritis in children: efficacy in improving process of care and effect on outcome of septic arthritis of the hip. J Bone Joint Surg Am. 2003 Jun; 85(6):994-9. View Abstract
Use of an abduction brace for developmental dysplasia of the hip after failure of Pavlik harness use. J Pediatr Orthop. 2003 Mar-Apr; 23(2):175-7. View Abstract
Coxa vara with proximal femoral growth arrest in patients who had neonatal extracorporeal membrane oxygenation. J Pediatr Orthop. 2003 Jan-Feb; 23(1):20-6. View Abstract
Prospective reevaluation of the association between thrombotic diathesis and legg-perthes disease. J Bone Joint Surg Am. 2002 Sep; 84(9):1613-8. View Abstract
Virtual reality simulation of arthroscopy of the knee. Arthroscopy. 2002 Jul-Aug; 18(6):E28. View Abstract
Early failure of Pavlik harness treatment for developmental hip dysplasia: clinical and ultrasound predictors. J Pediatr Orthop. 2001 May-Jun; 21(3):348-53. View Abstract
Osteonecrosis of the femoral head associated with slipped capital femoral epiphysis. J Pediatr Orthop. 2001 Mar-Apr; 21(2):189-93. View Abstract
Wagner multiple K-wire osteosynthesis to correct coxa vara in the young child: experience with a versatile 'tailor-made' high angle blade plate equivalent. J Pediatr Orthop B. 2001 Jan; 10(1):43-50. View Abstract
Titanium elastic nails for pediatric femur fractures: a multicenter study of early results with analysis of complications. J Pediatr Orthop. 2001 Jan-Feb; 21(1):4-8. View Abstract
Development of a virtual reality arthroscopic knee simulator. J Bone Joint Surg Am. 2000 Oct; 82(10):1495-9. View Abstract
Flexon-type Salter-Harris I injury of the proximal tibial epiphysis. J Orthop Trauma. 2000 May; 14(4):302-5. View Abstract
Massive subperiosteal hemorrhage and femoral shaft osteonecrosis: a complication of tissue plasminogen activator therapy for purpura fulminans. Am J Orthop (Belle Mead NJ). 2000 Apr; 29(4):315-9. View Abstract
Development of a virtual reality arthroscopic knee simulator. Stud Health Technol Inform. 2000; 70:192-4. View Abstract
Orthopaedic aspects of child abuse. J Am Acad Orthop Surg. 2000 Jan-Feb; 8(1):10-20. View Abstract
Differentiating between septic arthritis and transient synovitis of the hip in children: an evidence-based clinical prediction algorithm. J Bone Joint Surg Am. 1999 Dec; 81(12):1662-70. View Abstract
Legg-Calvé-Perthes disease: MR imaging evaluation during manual positioning of the hip--comparison with conventional arthrography. Radiology. 1999 Aug; 212(2):519-25. View Abstract
Radiographic appearance of the normal distal tibiofibular syndesmosis in children. J Pediatr Orthop. 1999 Jan-Feb; 19(1):14-21. View Abstract
Femur fractures in children: treatment with early sitting spica casting. J Pediatr Orthop. 1998 Jul-Aug; 18(4):481-7. View Abstract
Protrusio acetabuli and bilateral basicervical femoral neck fractures in a patient with Marfan syndrome. Am J Orthop (Belle Mead NJ). 1997 Oct; 26(10):689-91. View Abstract
Chronic physeal fractures in myelodysplasia: magnetic resonance analysis, histologic description, treatment, and outcome. J Pediatr Orthop. 1997 Sep-Oct; 17(5):615-21. View Abstract
Postreduction computed tomography in developmental dislocation of the hip: part I: analysis of measurement reliability. J Pediatr Orthop. 1997 Sep-Oct; 17(5):626-30. View Abstract
Postreduction computed tomography in developmental dislocation of the hip: part II: predictive value for outcome. J Pediatr Orthop. 1997 Sep-Oct; 17(5):631-6. View Abstract
Accuracy of leg length prediction in children younger than 10 years of age. Clin Orthop Relat Res. 1997 May; (338):9-13. View Abstract
Supracondylar Fractures of the Humerus in Children. J Am Acad Orthop Surg. 1997 Jan; 5(1):19-26. View Abstract
Cartilaginous abnormalities and growth disturbances in Legg-Calvé-Perthes disease: evaluation with MR imaging. Radiology. 1995 Dec; 197(3):767-73. View Abstract
The Pavlik harness and developmental dysplasia of the hip: has ultrasound changed treatment patterns? J Pediatr Orthop. 1995 Nov-Dec; 15(6):729-35. View Abstract
Osteomyelitis and septic arthritis in children: appropriate use of imaging to guide treatment. AJR Am J Roentgenol. 1995 Aug; 165(2):399-403. View Abstract
Fractures about the elbow. Instr Course Lect. 1995; 44:199-215. View Abstract
Neurovascular injury and displacement in type III supracondylar humerus fractures. J Pediatr Orthop. 1995 Jan-Feb; 15(1):47-52. View Abstract
Osteochondroma formation after a Salter II fracture. J Orthop Trauma. 1994 Oct; 8(5):437-9. View Abstract
Brachial plexus palsy as a complication of Pavlik harness use. J Pediatr Orthop. 1994 Sep-Oct; 14(5):677-9. View Abstract
Spinal deformity associated with neurenteric cysts in children. Spine (Phila Pa 1976). 1994 Jul 01; 19(13):1445-50. View Abstract
Percutaneous pinning in the treatment of displaced lateral condyle fractures. J Pediatr Orthop. 1994 Jul-Aug; 14(4):462-5. View Abstract
Uniplanar supracondylar humeral osteotomy with preset Kirschner wires for posttraumatic cubitus varus. J Pediatr Orthop. 1994 Jul-Aug; 14(4):471-8. View Abstract
Leg length discrepancy associated with vivid cutis marmorata. J Pediatr Orthop. 1993 Jul-Aug; 13(4):456-8. View Abstract
The function of the quadriceps muscle after a fracture of the femur in patients who are less than seventeen years old. J Bone Joint Surg Am. 1993 Apr; 75(4):508-13. View Abstract
Reinfusion of shed blood after orthopaedic procedures in children and adolescents. J Bone Joint Surg Am. 1993 Mar; 75(3):363-71. View Abstract
Incidence of spondylolisthesis in ambulatory cerebral palsy patients. J Pediatr Orthop. 1993 Jan-Feb; 13(1):37-40. View Abstract
Reevaluation of the use of the Risser sign in idiopathic scoliosis. Spine (Phila Pa 1976). 1992 Mar; 17(3):359-61. View Abstract
Percutaneous pinning of supracondylar fractures of the humerus. Instr Course Lect. 1992; 41:385-90. View Abstract
Slipped capital femoral epiphysis. A quantitative analysis of motion, gait, and femoral remodeling after in situ fixation. J Bone Joint Surg Am. 1991 Jun; 73(5):659-66. View Abstract
The shoulder, elbow, and forearm in Apert syndrome. Clin Plast Surg. 1991 Apr; 18(2):381-9. View Abstract
The foot in Apert syndrome. Clin Plast Surg. 1991 Apr; 18(2):391-7. View Abstract
Neurologic complications after K-wire fixation of supracondylar humerus fractures in children. J Pediatr Orthop. 1991 Mar-Apr; 11(2):191-4. View Abstract
Acute septic arthritis in infancy and childhood. Clin Orthop Relat Res. 1990 Aug; (257):212-25. View Abstract
Infection of the infrapatellar bursa. A report of two cases. J Bone Joint Surg Am. 1990 Aug; 72(7):1095-6. View Abstract
Physeal bar resections after growth arrest about the knee. Clin Orthop Relat Res. 1990 Jun; (255):68-74. View Abstract
The triceps-dividing approach to open reduction of complex distal humeral fractures in adolescents: a Cybex evaluation of triceps function and motion. J Pediatr Orthop. 1990 Jan-Feb; 10(1):93-6. View Abstract
Management of vascular injuries in displaced supracondylar humerus fractures without arteriography. J Orthop Trauma. 1990; 4(1):25-9. View Abstract
Self-administered nitrous oxide for fracture reduction in children in an emergency room setting. J Orthop Trauma. 1990; 4(1):35-8. View Abstract
Juvenile hyaline fibromatosis. A case report and review of musculoskeletal manifestations. J Bone Joint Surg Am. 1989 Jul; 71(6):941-4. View Abstract
Physeal arrest about the knee associated with non-physeal fractures in the lower extremity. J Bone Joint Surg Am. 1989 Jun; 71(5):698-703. View Abstract
Chronic recurrent multifocal osteomyelitis. Association with vertebra plana. J Bone Joint Surg Am. 1989 Jan; 71(1):105-12. View Abstract
Tibial tubercle apophysitis in cerebral palsy treated with proximal tibial epiphysiodesis: report of two cases with 3-year follow-up. J Pediatr Orthop. 1988 Nov-Dec; 8(6):704-6. View Abstract
The association of femoral retroversion with slipped capital femoral epiphysis. J Bone Joint Surg Am. 1986 Sep; 68(7):1000-7. View Abstract
Slipped capital femoral epiphysis: assessment of epiphyseal displacement and angulation. J Pediatr Orthop. 1986 May-Jun; 6(3):259-64. View Abstract
Varus derotation osteotomy in the treatment of persistent dysplasia in congenital dislocation of the hip. J Bone Joint Surg Am. 1985 Feb; 67(2):195-202. View Abstract