Robert M Kay, MD

Professor of Orthopaedic Surgery (Clinical Scholar)

Division Chief of Orthopaedic Surgery at CHLA

Websites

Children's Hospital Los Angeles

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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

Hip Surgery is Not More Painful Than Spine Surgery in Children With Cerebral Palsy J Pediatr Orthop. 2024 Jun 27. . View in PubMed
J Pediatr Orthop. 2024 May-Jun 01; 44(5):e452-e456. . View in PubMed
Pediatric Outcomes Data Collection Instrument Scores Within Gross Motor Function Classification Scale Levels and Functional Mobility Scale Ratings in Individuals With Cerebral Palsy J Pediatr Orthop. 2024 Apr 09. . View in PubMed
Drop Foot With Posterior Tibialis Weakness Treated With Peroneus Longus Transfer in a Child: A Case Report JBJS Case Connect. 2024 Apr 01; 14(2). . View in PubMed
Update on the reliability of gait analysis interpretation in cerebral palsy: Inter-institution agreement Gait Posture. 2024 Mar; 109:109-114. . View in PubMed
Anterior Distal Femoral Hemiepiphysiodesis Does Not Change Pelvic Tilt in Children With Cerebral Palsy J Pediatr Orthop. 2024 Feb 01; 44(2):76-81. . View in PubMed
Predictors of Changes in Pelvic Rotation after Surgery with or without Femoral Derotational Osteotomy in Ambulatory Children with Cerebral Palsy Bioengineering (Basel). 2023 Oct 18; 10(10). . View in PubMed
Anterior distal femoral hemiepiphysiodesis in children with cerebral palsy: Establishing surgical indications and techniques using the modified Delphi method and literature review J Child Orthop. 2023 Jun; 17(3):292-294. . View in PubMed
Gait Analysis Characteristics in Relapsed Clubfoot J Pediatr Orthop. 2023 Feb 01; 43(2):65-69. . View in PubMed
Persistent increase in anterior pelvic tilt after hamstring lengthening in children with cerebral palsy Gait Posture. 2023 06; 103:184-189. . View in PubMed
Distal femoral extension osteotomy and patellar tendon advancement or shortening in ambulatory children with cerebral palsy: A modified Delphi consensus study and literature review J Child Orthop. 2022 Dec; 16(6):442-453. . View in PubMed
Variation in Functional Mobility Within Gross Motor Function Classification System Levels J Pediatr Orthop. 2022 Apr 01; 42(4):209-214. . View in PubMed
Assessment of foot alignment and function for ambulatory children with cerebral palsy: Results of a modified Delphi technique consensus study J Child Orthop. 2022 Apr; 16(2):111-120. . View in PubMed
Anterior distal femoral hemiepiphysiodesis in children with cerebral palsy: Establishing surgical indications and techniques using the modified Delphi method and literature review J Child Orthop. 2022 Feb; 16(1):65-74. . View in PubMed
Finding consensus for hamstring surgery in ambulatory children with cerebral palsy using the Delphi method J Child Orthop. 2022 Feb; 16(1):55-64. . View in PubMed
Tranexamic acid use decreases transfusion rate in children with cerebral palsy undergoing proximal femoral varus derotational osteotomy Medicine (Baltimore). 2022 Jan 14; 101(2):e28506. . View in PubMed
Pre-operative nutrition assessments do not improve outcomes in cerebral palsy patients undergoing varus derotational osteotomy Medicine (Baltimore). 2021 Nov 24; 100(47):e27776. . View in PubMed
Calcaneal Sliding Osteotomy Versus Calcaneal Lengthening Osteotomy for Valgus Foot Deformity Correction in Children With Cerebral Palsy J Pediatr Orthop. 2021 Jul 01; 41(6):e433-e438. . View in PubMed
Distal rectus femoris surgery in children with cerebral palsy: results of a Delphi consensus project J Child Orthop. 2021 Jun 01; 15(3):270-278. . View in PubMed
Quantitative Computed Tomography Assessment of Bone Deficits in Ambulatory Children and Adolescents with Spina Bifida: Importance of Puberty JBMR Plus. 2020 Dec; 4(12):e10427. . View in PubMed
Anterior distal femoral hemiepiphysiodesis with and without patellar tendon shortening for fixed knee flexion contractures in children with cerebral palsy J Child Orthop. 2020 Oct 01; 14(5):415-420. . View in PubMed
Indications for gastrocsoleus lengthening in ambulatory children with cerebral palsy: a Delphi consensus study J Child Orthop. 2020 Oct 01; 14(5):405-414. . View in PubMed
Pre-operative methicillin resistant Staphylococcus aureus results do not predict surgical site infections in children undergoing varus derotational osteotomy Medicine (Baltimore). 2020 Jun 26; 99(26):e20517. . View in PubMed
Response to comment on Siddiqui et al: ‘Femoral shaft fractures in children with non-ambulatory neuromuscular disorders can be effectively treated using flexible intramedullary nails’ J Child Orthop. 2020 Jun 01; 14(3):243-244. . View in PubMed
Femoral shaft fractures in children with non-ambulatory neuromuscular disorders can be effectively treated using flexible intramedullary nails J Child Orthop. 2020 Apr 01; 14(2):132-138. . View in PubMed
Establishing surgical indications for hamstring lengthening and femoral derotational osteotomy in ambulatory children with cerebral palsy J Child Orthop. 2020 Feb 01; 14(1):50-57. . View in PubMed
Hip Dysplasia Is Not More Common in W-Sitters Clin Pediatr (Phila). 2020 10; 59(12):1074-1079. . View in PubMed
Split Tibialis Anterior Tendon Transfer to The Peroneus Brevis or Tertius for the Treatment of Varus Foot Deformities in Children with Static Encephalopathy: A retrospective case series J Am Acad Orthop Surg Glob Res Rev. 2020 05; 4(5):e2000044. . View in PubMed
Causes of out-toeing gait in children with cerebral palsy Gait Posture. 2020 02; 76:141-145. . View in PubMed
Fever after varus derotational osteotomy is common, but not a risk factor for infection Medicine (Baltimore). 2020 Jan; 99(1):e18613. . View in PubMed
Comparison of plate and screw constructs versus screws only for anterior distal femoral hemiepiphysiodesis in children J Pediatr Orthop B. 2020 Jan; 29(1):53-61. . View in PubMed
Effect of Early Weightbearing Following Open Reduction and Internal Fixation of Unstable Ankle Fractures on Wound Complications or Failures of Fixation Foot Ankle Int. 2019 Dec; 40(12):1397-1402. . View in PubMed
Rectus Femoris Transfer Surgery Worsens Crouch Gait in Children With Cerebral Palsy at GMFCS Levels III and IV J Pediatr Orthop. 2019 Oct; 39(9):466-471. . View in PubMed
Synovial fluid cell counts and its role in the diagnosis of paediatric septic arthritis J Child Orthop. 2019 Aug 01; 13(4):417-422. . View in PubMed
Percutaneous Hamstring Lengthening Surgery is as Effective as Open Lengthening in Children With Cerebral Palsy J Pediatr Orthop. 2019 Aug; 39(7):366-371. . View in PubMed
Outcomes of salvage hip surgery in children with cerebral palsy J Pediatr Orthop B. 2019 Jul; 28(4):314-319. . View in PubMed
The Incidence of Pin Tract Infections and Septic Arthritis in Percutaneous Distal Femur Pinning J Pediatr Orthop. 2019 Jul; 39(6):e462-e466. . View in PubMed
Impact of tranexamic acid use on blood loss and transfusion rates following femoral varus derotational osteotomy in children with cerebral palsy J Child Orthop. 2019 Apr 01; 13(2):190-195. . View in PubMed
Pre-operative hamstring length and velocity do not explain the reduced effectiveness of repeat hamstring lengthening in children with cerebral palsy and crouch gait Gait Posture. 2019 02; 68:323-328. . View in PubMed
Foam Padding in Postoperative Lower Extremity Casting: An Inexpensive Way to Protect Patients J Pediatr Orthop. 2018 Sep; 38(8):e470-e474. . View in PubMed
Reliability of patellar height indices in children with cerebral palsy and spina bifida J Child Orthop. 2017 Aug 01; 11(4):249-255. . 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 01; 59(1):79-88. . 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
Anterior Percutaneous Hemiepiphysiodesis of the Distal Aspect of the Femur: A New Technique: A Case Report JBJS Case Connect. 2015 Oct-Dec; 5(4):e95. . 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
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
Assessment of human exposures to animal vaccines using poison control records, 2000-2009 Zoonoses Public Health. 2014 May; 61(3):175-80. . View in PubMed
Heterotopic Ossification Excision Improves Kinetic and Kinematic Gait Parameters as Demonstrated by Computerized Motion Analysis: A Case Report JBJS Case Connect. 2013 Nov 13; 3(4 Suppl 3):e109. . View in PubMed
Heterotopic Ossification Excision Improves Kinetic and Kinematic Gait Parameters as Demonstrated by Computerized Motion Analysis: A Case Report JBJS Case Connect. 2013 Oct 23; 3(4 Suppl 2):e1051-7. . 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. 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
Osteoporosis management: a perspective based on bisphosphonate data from randomised clinical trials and observational databases Int J Clin Pract. 2009 Dec; 63(12):1792-804. . 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
Malignant peripheral nerve sheath tumor of the lumbar spine Am J Orthop (Belle Mead NJ). 2009 May; 38(5):E89-92. . View in PubMed
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
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
Delaying treatment of supracondylar fractures in children: has the pendulum swung too far? J Bone Joint Surg Br. 2008 Sep; 90(9):1228-33.. 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. 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
Complete division of the radial nerve associated with a closed fracture of the humeral shaft in a child J Bone Joint Surg Br. 2007 Jun; 89(6):821-4. . 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
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
Treatment of multidirectionally unstable supracondylar humeral fractures in childrenA modified Gartland type-IV fracture. J Bone Joint Surg Am. 2006 May; 88(5):980-5. . View in PubMed
Back pain and backpacks in school children J Pediatr Orthop. 2006 May-Jun; 26(3):358-63. . View in PubMed
Pediatric polytrauma management J Pediatr Orthop. 2006 Mar-Apr; 26(2):268-77. . View in PubMed
Open fractures in childrenPrinciples of evaluation and management. J Bone Joint Surg Am. 2005 Dec; 87(12):2784-2798. . 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. 2005 May; 14(3):202-5.. 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
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
Botulinum toxin as an adjunct to serial casting treatment in children with cerebral palsy J Bone Joint Surg Am. 2004 Nov; 86(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(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
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
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
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
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
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
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
Bilateral hip dislocations in a father and son with Ehlers-Danlos syndrome Orthopedics. 2001 Dec; 24(12):1165-6. . View in PubMed
Prediction of postoperative gait velocity in cerebral palsy J Pediatr Orthop B. 2001 Oct; 10(4):275-8. . View in PubMed
Pediatric foot fractures: evaluation and treatment J Am Acad Orthop Surg. 2001 Sep-Oct; 9(5):308-19. . View in PubMed
Pediatric ankle fractures: evaluation and treatment J Am Acad Orthop Surg. 2001 Jul-Aug; 9(4):268-78. . View in PubMed
Access to orthopedic care for children with medicaid versus private insurance in California Pediatrics. 2001 Jun; 107(6):1405-8. . View in PubMed
Operative treatment of supracondylar fractures of the humerus in childrenThe consequences of pin placement. J Bone Joint Surg Am. 2001 May; 83(5):735-40. . View in PubMed
Elbow aspiration and arthrogram: an alternative method Am J Orthop (Belle Mead NJ). 2001 Mar; 30(3):256. . View in PubMed
Variability in gait analysis interpretation J Pediatr Orthop. 2000 Nov-Dec; 20(6):759-64. . 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
Penile adhesions after neonatal circumcision J Urol. 2000 Aug; 164(2):495-6. . View in PubMed
Ischaemic myelopathy presenting as Guillain-Barré syndrome Int J Clin Pract. 2000 Jun; 54(5):340-1. . View in PubMed
Unilateral absence of the clavicle with rapidly progressive scoliosis in an 8-year-old Am J Orthop (Belle Mead NJ). 2000 May; 29(5):383-6. . View in PubMed
Impact of postoperative gait analysis on orthopaedic care Clin Orthop Relat Res. 2000 May; (374):259-64. . View in PubMed
A simplified valgus osteotomy of the proximal femur in children J Pediatr Orthop B. 2000 Apr; 9(2):114-8. . View in PubMed
Dysplasia epiphysealis hemimelica of the acetabulumA report of two cases. J Bone Joint Surg Am. 2000 Mar; 82(3):409-14. . View in PubMed
The effect of preoperative gait analysis on orthopaedic decision making Clin Orthop Relat Res. 2000 Mar; (372):217-22. . View in PubMed
Effect of delay of surgical treatment on rate of infection in open fractures in children J Pediatr Orthop. 2000 Jan-Feb; 20(1):19-22. . View in PubMed
Publication of abstracts submitted to the annual meeting of the Pediatric Orthopaedic Society of North America J Pediatr Orthop. 2000 Jan-Feb; 20(1):2-6. . View in PubMed
Risk of contralateral hydrocele or hernia after unilateral hydrocele repair in children J Urol. 1999 Sep; 162(3 Pt 2):1169-70; discussion 1171. . View in PubMed
The effects of fixed and articulated ankle-foot orthoses on gait patterns in subjects with cerebral palsy J Pediatr Orthop. 1999 Jul-Aug; 19(4):470-4. . View in PubMed
Bilateral proximal radial and scaphoid fractures in a child J Hand Surg Br. 1999 Apr; 24(2):255-7. . View in PubMed
Outcome of hamstring lengthening and distal rectus femoris transfer surgery J Pediatr Orthop B. 1999 Apr; 8(2):75-9. . View in PubMed
Late metachronous involvement of the contralateral hip in Legg-Calvé-Perthes disease J Pediatr Orthop. 1998 Nov-Dec; 18(6):807-10. . View in PubMed
Variability in measurement of acetabular index in normal and dysplastic hips, before and after reduction J Pediatr Orthop. 1998 Nov-Dec; 18(6):799-801. . View in PubMed
The pediatric Monteggia fracture Am J Orthop (Belle Mead NJ). 1998 Sep; 27(9):606-9. . View in PubMed
Use of a hybrid external fixator for a severely comminuted juxta-articular fracture of the distal humerus J Orthop Trauma. 1998 Aug; 12(6):439-42. . View in PubMed
Supracondylar humerus fractures in children AORN J. 1998 Aug; 68(2):186-99; quiz 203205-6208-10. . View in PubMed
Subdural effusion in chronic cryptococcal meningitis in a cirrhotic patient Int J Clin Pract. 1997 Jun; 51(4):254-5. . View in PubMed
Variability in the assessment of acetabular index J Pediatr Orthop. 1997 Mar-Apr; 17(2):170-3. . View in PubMed
Late presentation of a Monteggia fracture Orthopedics. 1996 Oct; 19(10):895-7. . View in PubMed
Osteosarcoma and Ewing’s sarcoma in a retinoblastoma patient Clin Orthop Relat Res. 1996 Feb; (323):284-7. . View in PubMed
Long-term durability of cemented primary total hip arthroplasty J Arthroplasty. 1995 Nov; 10 Suppl:S29-38. . View in PubMed
Inter- and intraobserver variation in staging patients with proven avascular necrosis of the hip Clin Orthop Relat Res. 1994 Oct; (307):124-9. . View in PubMed
Heterotopic ossification prophylaxis following operative treatment of acetabular fracture Clin Orthop Relat Res. 1994 Aug; (305):88-95. . View in PubMed
Total elbow allograft for twice-failed total elbow arthroplastyA case report. Clin Orthop Relat Res. 1994 Jun; (303):135-9. . View in PubMed
Metastatic hepatocellular carcinoma to bone in a liver transplant patientA case report. Clin Orthop Relat Res. 1994 Jun; (303):237-41. . View in PubMed
Hydroxyapatite-coated distal femoral replacementsPreliminary results. Clin Orthop Relat Res. 1994 May; (302):92-100. . View in PubMed
EMLA cream reduces the pain of venepuncture in children Eur J Anaesthesiol. 1987 Nov; 4(6):441-8. . View in PubMed
Cutaneous ureterostomy in children–long-term followup J Urol. 1985 Sep; 134(3):518-20. . View in PubMed
Growth of long term survivors of childhood malignancy Acta Paediatr Scand. 1985 May; 74(3):438-41. . View in PubMed
[Indications for the surgical correction of patients with transposition of the great arteries associated with an interventricular defectAnalysis of 98 cases operated on using the Mustard technic]. G Ital Cardiol. 1983 Dec; 13(12):380-7. . View in PubMed
Complications of posterior iliac crest bone grafting in spine surgery in children Spine (Phila Pa 1976). 2000 Sep 15; 25(18):2400-2. . View in PubMed

Robert M Kay, MD

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