Faculty

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Robert M Kay, MD
Professor of Orthopaedic Surgery (Clinical Scholar)
Pediatric Orthopaedic Surgery
CHL Mail Stop 69 Off Campus Los Angeles
+1 323 361 4658

Overview

Dr. Kay received his undergraduate degree from Harvard College and his medical degree from The Johns Hopkins University School of Medicine. He completed his residency in orthopaedic surgery at University of California Los Angeles and a fellowship in pediatric orthopaedics at Atlanta Scottish Rite Childrens Medical Center. Dr. Kay has published over 70 peer-reviewed articles and numerous book chapters and is active in several organizations including the American Academy of Orthopaedic Surgeons, Pediatric Orthopaedic Society of North America, American Academy of Cerebral Palsy and Developmental Medicine and the Gait and Clinical Movement Analysis Society. Dr. Kay has been the director of the Motion Analysis Laboratory since 1997.

Publications

Rectus Femoris Transfer Surgery Worsens Crouch Gait in Children With Cerebral Palsy at GMFCS Levels III and IV. J Pediatr Orthop. 2017 Apr 03. View in: PubMed

Prevalence of specific gait abnormalities in children with cerebral palsy revisited: influence of age, prior surgery, and Gross Motor Function Classification System level. Dev Med Child Neurol. 2017 Jan; 59(1):79-88. View in: PubMed

Percutaneous Hamstring Lengthening Surgery is as Effective as Open Lengthening in Children With Cerebral Palsy. J Pediatr Orthop. 2016 Dec 22. View in: PubMed

Prevalence of specific gait abnormalities in children with cerebral palsy revisited: influence of age, prior surgery, and Gross Motor Function Classification System level. Dev Med Child Neurol. 2016 Jul 15. View in: PubMed

Accessory Navicular is Associated With Wider and More Prominent Navicular Bone in Pediatric Patients by Radiographic Measurement. J Pediatr Orthop. 2016 Jul-Aug; 36(5):521-5. View in: PubMed

Variability of the Anterior Humeral Line in Normal Pediatric Elbows. J Pediatr Orthop. 2016 Mar; 36(2):e14-6. View in: PubMed

Knee Pain and Patellofemoral Symptoms in Patients With Cerebral Palsy. J Pediatr Orthop. 2015 Jul-Aug; 35(5):519-22. View in: PubMed

Variability of the Anterior Humeral Line in Normal Pediatric Elbows. J Pediatr Orthop. 2015 May 16. View in: PubMed

Long-term ambulatory change after lower extremity orthopaedic surgery in children with cerebral palsy: a retrospective review. J Pediatr Orthop. 2015 Apr-May; 35(3):285-9. View in: PubMed

Foam padding in casts accommodates soft tissue swelling and provides circumferential strength after fixation of supracondylar humerus fractures. J Pediatr Orthop. 2015 Jan; 35(1):24-7. View in: PubMed

A line drawn along the radial shaft misses the capitellum in 16% of radiographs of normal elbows. J Pediatr Orthop. 2014 Dec; 34(8):763-7. View in: PubMed

Silent compartment syndrome in children: a report of five cases. J Pediatr Orthop B. 2014 Sep; 23(5):467-71. View in: PubMed

Long-term Ambulatory Change After Lower Extremity Orthopaedic Surgery in Children With Cerebral Palsy: A Retrospective Review. J Pediatr Orthop. 2014 Jun 24. View in: PubMed

A Line Drawn Along the Radial Shaft Misses the Capitellum in 16% of Radiographs of Normal Elbows. J Pediatr Orthop. 2014 Apr 29. View in: PubMed

Impact of gait analysis on correction of excessive hip internal rotation in ambulatory children with cerebral palsy: a randomized controlled trial. Dev Med Child Neurol. 2013 Oct; 55(10):919-25. View in: PubMed

Repeat hamstring lengthening for crouch gait in children with cerebral palsy. J Pediatr Orthop. 2013 Jul-Aug; 33(5):501-4. View in: PubMed

Transverse plane gait problems in children with cerebral palsy. J Pediatr Orthop. 2013 Jun; 33(4):422-30. View in: PubMed

Outcomes of lower extremity orthopedic surgery in ambulatory children with cerebral palsy with and without gait analysis: results of a randomized controlled trial. Gait Posture. 2013 Jun; 38(2):236-41. View in: PubMed

Differences in implementation of gait analysis recommendations based on affiliation with a gait laboratory. Gait Posture. 2013 Feb; 37(2):206-9. View in: PubMed

Orthopedic surgeons are less likely to see children now for fracture care compared with 10 years ago. J Pediatr. 2012 Mar; 160(3):505-7. View in: PubMed

Surgical management of hip subluxation and dislocation in children with cerebral palsy: isolated VDRO or combined surgery? J Pediatr Orthop. Surgical management of hip subluxation and dislocation in children with cerebral palsy: isolated VDRO or combined surgery? J Pediatr Orthop. 2011 Dec; 31(8):858-63. View in: PubMed

Perioperative ketorolac use in children undergoing lower extremity osteotomies. J Pediatr Orthop. 2011 Oct-Nov; 31(7):783-6. View in: PubMed

Cerebral palsy: clinical care and neurological rehabilitation. Lancet Neurol. 2011 Sep; 10(9):844-52. View in: PubMed

A new surgical technique for the treatment of supracondylar humerus fracture malunions in children. J Child Orthop. 2011 Aug; 5(4):305-12. View in: PubMed

Influence of gait analysis on decision-making for lower extremity orthopaedic surgery: Baseline data from a randomized controlled trial. Gait Posture. 2011 Jul; 34(3):364-9. View in: PubMed

Bone density and size in ambulatory children with cerebral palsy. Dev Med Child Neurol. 2011 Feb; 53(2):137-41. View in: PubMed

Orthopaedic issues in children and adolescents with central nervous system tumors. J Pediatr Rehabil Med. 2011; 4(1):71-8. View in: PubMed

Effect of high-frequency, low-magnitude vibration on bone and muscle in children with cerebral palsy. J Pediatr Orthop. 2010 Oct-Nov; 30(7):732-8. View in: PubMed

Classification systems in cerebral palsy. Orthop Clin North Am. 2010 Oct; 41(4):457-67. View in: PubMed

Complications of ketorolac use in children undergoing operative fracture care. J Pediatr Orthop. 2010 Oct-Nov; 30(7):655-8. View in: PubMed

Excessive hip flexion during gait in patients with static encephalopathy: an examination of contributing factors. J Pediatr Orthop. 2010 Sep; 30(6):562-7. View in: PubMed

Achilles tendon length and medial gastrocnemius architecture in children with cerebral palsy and equinus gait. J Pediatr Orthop. 2010 Jul-Aug; 30(5):479-84. View in: PubMed

Development of calcaneal gait without prior triceps surae lengthening: an examination of predictive factors. J Pediatr Orthop. 2010 Apr-May; 30(3):240-3. View in: PubMed

Static and dynamic gait parameters before and after multilevel soft tissue surgery in ambulating children with cerebral palsy. J Pediatr Orthop. 2010 Mar; 30(2):174-9. View in: PubMed

Distal humerus osteotomy for supracondylar fracture malunion in children: a study of perioperative complications. Am J Orthop (Belle Mead NJ). 2010 Jan; 39(1):22-5. View in: PubMed

The Dega osteotomy: a versatile osteotomy in the treatment of developmental and neuromuscular hip pathology. J Pediatr Orthop. 2009 Oct-Nov; 29(7):676-82. View in: PubMed

Effects of preoperative gait analysis on costs and amount of surgery. J Pediatr Orthop. 2009 Sep; 29(6):558-63. View in: PubMed

A new classification system predictive of complications in surgically treated pediatric humeral lateral condyle fractures. J Pediatr Orthop. 2009 Sep; 29(6):602-5. View in: PubMed

The recurrent clubfoot: can gait analysis help us make better preoperative decisions? Clin Orthop Relat Res. The recurrent clubfoot: can gait analysis help us make better preoperative decisions? Clin Orthop Relat Res. 2009 May; 467(5):1214-22. View in: PubMed

Malignant peripheral nerve sheath tumor of the lumbar spine. Am J Orthop (Belle Mead NJ). 2009 May; 38(5):E89-92. View in: PubMed

Predictors of outcome of distal rectus femoris transfer surgery in ambulatory children with cerebral palsy. J Pediatr Orthop B. 2009 Mar; 18(2):58-62. View in: PubMed

Complications with flexible nailing of femur fractures more than double with child obesity and weight >50 kg. J Child Orthop. 2009 Feb; 3(1):53-8. View in: PubMed

Timing of the presentation of urethrocutaneous fistulas after hypospadias repair in pediatric patients. J Urol. 2008 Oct; 180(4 Suppl):1753-6. View in: PubMed

Incidence of occult fracture in children with acute ankle injuries. J Pediatr Orthop. 2008 Jul-Aug; 28(5):500-1. View in: PubMed

"Kinematic and kinetic evaluation of the ankle joint before and after tendo Achilles lengthening in patients with spastic diplegia". J Pediatr Orthop. 2008 Apr-May; 28(3):392. View in: PubMed

Concurrent and discriminant validity of Spanish language instruments for measuring functional health status. J Pediatr Orthop. 2008 Mar; 28(2):199-212. View in: PubMed

How safe is the operative treatment of Gartland type 2 supracondylar humerus fractures in children? J Pediatr Orthop. How safe is the operative treatment of Gartland type 2 supracondylar humerus fractures in children? J Pediatr Orthop. 2008 Mar; 28(2):139-41. View in: PubMed

Abduction pillow immobilization following hip surgery: a welcome alternative for selected patients. J Child Orthop. 2007 Nov; 1(5):299-305. View in: PubMed

Gillette Gait Index as a gait analysis summary measure: comparison with qualitative visual assessments of overall gait. J Pediatr Orthop. 2007 Oct-Nov; 27(7):765-8. View in: PubMed

Compartment syndrome of the thigh in an infant: a case report. J Orthop Trauma. 2007 Sep; 21(8):587-90. View in: PubMed

Agreement among three instruments for measuring functional health status and quality of life in pediatric orthopaedics. J Pediatr Orthop. 2007 Mar; 27(2):233-40. View in: PubMed

Treatment of hip dislocation in Kabuki syndrome: a report of three hips in two patients. J Pediatr Orthop. 2007 Jan-Feb; 27(1):37-40. View in: PubMed

Insurance status and delay in orthotic treatment in children. J Pediatr Orthop. 2007 Jan-Feb; 27(1):94-7. View in: PubMed

Causes of intoeing gait in children with cerebral palsy. J Bone Joint Surg Am. 2006 Oct; 88(10):2175-80. View in: PubMed

The contributions of anterior and posterior tibialis dysfunction to varus foot deformity in patients with cerebral palsy. J Bone Joint Surg Am. 2006 Aug; 88(8):1764-8. View in: PubMed

Use of flexible intramedullary nails in pediatric femur fractures. J Pediatr Orthop. 2006 Jul-Aug; 26(4):497-504. View in: PubMed

Back pain and backpacks in school children. J Pediatr Orthop. 2006 May-Jun; 26(3):358-63. View in: PubMed

Access to orthopaedic care for children with medicaid versus private insurance: results of a national survey. J Pediatr Orthop. 2006 May-Jun; 26(3):400-4. View in: PubMed

Pediatric polytrauma management. J Pediatr Orthop. 2006 Mar-Apr; 26(2):268-77. View in: PubMed

Open fractures in children. Principles of evaluation and management. J Bone Joint Surg Am. 2005 Dec; 87(12):2784-98. View in: PubMed

Reliability and validity of visual assessments of gait using a modified physician rating scale for crouch and foot contact. J Pediatr Orthop. 2005 Sep-Oct; 25(5):646-50. View in: PubMed

How closely do surgeons follow gait analysis recommendations and why? J Pediatr Orthop B. How closely do surgeons follow gait analysis recommendations and why? J Pediatr Orthop B. 2005 May; 14(3):202-5. View in: PubMed

The effect of surgical delay on acute infection following 554 open fractures in children. J Bone Joint Surg Am. 2005 Jan; 87(1):8-12. View in: PubMed

Prevalence of specific gait abnormalities in children with cerebral palsy: influence of cerebral palsy subtype, age, and previous surgery. J Pediatr Orthop. 2005 Jan-Feb; 25(1):79-83. View in: PubMed

Results of tibial rotational osteotomy without concomitant fibular osteotomy in children with cerebral palsy. J Pediatr Orthop. 2005 Jan-Feb; 25(1):84-8. View in: PubMed

Botulinum toxin as an adjunct to serial casting treatment in children with cerebral palsy. J Bone Joint Surg Am. 2004 Nov; 86-A(11):2377-84. View in: PubMed

Gastrocnemius and soleus lengths in cerebral palsy equinus gait--differences between children with and without static contracture and effects of gastrocnemius recession. J Biomech. 2004 Sep; 37(9):1321-7. View in: PubMed

Effect of surgical delay on perioperative complications and need for open reduction in supracondylar humerus fractures in children. J Pediatr Orthop. 2004 May-Jun; 24(3):245-8. View in: PubMed

Changes in pelvic rotation after soft tissue and bony surgery in ambulatory children with cerebral palsy. J Pediatr Orthop. 2004 May-Jun; 24(3):278-82. View in: PubMed

Lateral-entry pin fixation in the management of supracondylar fractures in children. J Bone Joint Surg Am. 2004 Apr; 86-A(4):702-7. View in: PubMed

Outcome of gastrocnemius recession and tendo-achilles lengthening in ambulatory children with cerebral palsy. J Pediatr Orthop B. 2004 Mar; 13(2):92-8. View in: PubMed

Predictive value of the Duncan-Ely test in distal rectus femoris transfer. J Pediatr Orthop. 2004 Jan-Feb; 24(1):59-62. View in: PubMed

Late extensor pollicis longus rupture following displaced distal radius and ulna fractures in a child. J Orthop Trauma. 2004 Jan; 18(1):53-6. View in: PubMed

Childhood diskitis. J Am Acad Orthop Surg. 2003 Nov-Dec; 11(6):413-20. View in: PubMed

Delayed neurologic injury due to bone graft migration into the spinal canal following scoliosis surgery. Orthopedics. 2003 May; 26(5):515-6. View in: PubMed

Comparison of proximal and distal rotational femoral osteotomy in children with cerebral palsy. J Pediatr Orthop. 2003 Mar-Apr; 23(2):150-4. View in: PubMed

The surgical management of pediatric fractures of the lower extremity. Instr Course Lect. 2003; 52:647-59. View in: PubMed

Fracture stability after pinning of displaced supracondylar distal humerus fractures in children. J Pediatr Orthop. 2002 Sep-Oct; 22(5):697; author reply 697-8. View in: PubMed

Quality of evaluation and management of children requiring timely orthopaedic surgery before admission to a tertiary pediatric facility. J Pediatr Orthop. 2002 Mar-Apr; 22(2):265-7. View in: PubMed

Outcome of medial versus combined medial and lateral hamstring lengthening surgery in cerebral palsy. J Pediatr Orthop. 2002 Mar-Apr; 22(2):169-72. View in: PubMed

Growth arrest of the distal radius following a metaphyseal fracture: case report and review of the literature. J Pediatr Orthop B. 2002 Jan; 11(1):89-92. View in: PubMed

The effect of femoral rotation on the projected femoral neck-shaft angle. J Pediatr Orthop. 2000 Nov-Dec; 20(6):736-9. View in: PubMed

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