Keck School Faculty

Michael J Heffernan

Michael J Heffernan

Associate Professor of Clinical Orthopaedics Surgery
4640 West Sunset Blvd Off Campus Los Angeles

Quantifying the forces needed for ureteral stent removal: Initial evaluation of magnetic stent removal devices on benchtop and porcine modelsJ Pediatr Urol. 2020 Oct; 16(5):596. e1-596. e8. . View in PubMed

Highly Specific Detection of Oxytocin in Saliva Int J Mol Sci. 2023 Mar 02; 24(5). . View in PubMed

Spine Deform. 2023 09; 11(5):1157-1167. . View in PubMed

Concave and convex growth do not differ over tethered vertebral segments, even with open tri-radiate cartilage Spine Deform. 2023 07; 11(4):881-886. . View in PubMed

Minimalistic approach to enhanced recovery after pediatric scoliosis surgery Spine Deform. 2023 07; 11(4):841-846. . View in PubMed

Modified Clavien-Dindo-Sink system is reliable for classifying complications following surgical treatment of early-onset scoliosis Spine Deform. 2023 01; 11(1):205-212. . View in PubMed

Transforming Your Operating Room into a High Functioning Team: A Survival Guide for Junior Attendings in the OR J Pediatr Orthop. 2022 May-Jun 01; 42(Suppl 1):S25-S28. . View in PubMed

The Effect of Surgeon Experience on Outcomes Following Growth Friendly Instrumentation for Early Onset Scoliosis J Pediatr Orthop. 2022 Feb 01; 42(2):e132-e137. . View in PubMed

The Feasibility of Utilizing Malunion Criteria to Limit Radiographs After Spica Casting for Pediatric Femur Fractures J Pediatr Orthop. 2022 Feb 01; 42(2):e115-e119. . View in PubMed

Disparities in Pediatric Scoliosis: The Impact of Race and Insurance Type on Access to Nonoperative Treatment for Adolescent Idiopathic Scoliosis J Pediatr Orthop. 2022 09 01; 42(8):427-431. . View in PubMed

The ChorioAnchor: Design and Testing of a Novel Chorioamniotic Anchoring Device to Enable Percutaneous Fetoscopic Surgery Fetal Diagn Ther. 2022; 49(7-8):347-360. . View in PubMed

Advancing pediatric medical device development via non-dilutive NIH SBIR/STTR grant funding J Pediatr Surg. 2021 Nov; 56(11):2118-2123. . View in PubMed

Pediatric Distal Third Tibial Shaft Fractures: Are Short Leg Casts a Reasonable Option? J Pediatr Orthop. 2021 Nov-Dec 01; 41(10):e936.. View in PubMed

Surgical Outcomes of Obese Patients With Adolescent Idiopathic Scoliosis From Endemic Areas of Obesity in the United States J Pediatr Orthop. 2021 Nov-Dec 01; 41(10):e865-e870. . View in PubMed

The Impact of Cast Immobilization on Return to Daycare J Pediatr Orthop. 2021 Oct 01; 41(9):571-575. . View in PubMed

Atypical osteochondroma of the lumbar spine associated with suprasellar pineal germinoma: A case report World J Orthop. 2021 Sep 18; 12(9):720-726. . View in PubMed

Intraoperative Burden of Flexible Intramedullary Nailing and Spica Casting for Femur Fractures in Young Children J Pediatr Orthop. 2021 Aug 01; 41(7):e499-e505. . View in PubMed

Phenomenological Constraints on the Transport Properties of QCD Matter with Data-Driven Model Averaging Phys Rev Lett. 2021 Jun 18; 126(24):242301. . View in PubMed

Assessing the Impact of the Pediatric Orthopaedic Society of North America (POSNA) Visiting Scholar Program J Pediatr Orthop. 2021 Mar 01; 41(3):197-201. . View in PubMed

Comparison of Short-leg and Long-leg Casts for the Treatment of Distal Third Tibial Shaft Fractures in Children J Pediatr Orthop. 2021 Mar 01; 41(3):e259-e265. . View in PubMed

Microdose protocol stereoradiography has similar reliability to standard low-dose protocol during concurrent Sanders skeletal maturity staging Spine Deform. 2021 09; 9(5):1333-1339. . View in PubMed

Single-level fusion without decompression for high-grade spondylolithesis in adolescents: a novel surgical strategy Spine Deform. 2021 09; 9(5):1457-1464. . View in PubMed

Enhanced Recovery After Pediatric Scoliosis Surgery: Key Components and Current Practice Orthopedics. 2020 Sep 01; 43(5):e338-e344. . View in PubMed

Bisphosphonates and parathyroid hormone analogs for improving bone quality in spinal fusion: State of evidence Orthop Rev (Pavia). 2020 Aug 06; 12(2):8590. . View in PubMed

Predictors of Open Reduction in Pediatric Femur Fractures Treated With Flexible Nails J Pediatr Orthop. 2020 Aug; 40(7):e566-e571. . View in PubMed

Fate of Hardware in Spinal Infections Surg Infect (Larchmt). 2020 Jun; 21(5):404-410. . View in PubMed

Current Trends in Pediatric Spine Deformity Surgery: Multimodal Pain Management and Rapid Recovery Global Spine J. 2020 May; 10(3):346-352. . View in PubMed

Current Strategies in Prevention of Postoperative Infections in Spine Surgery Global Spine J. 2020 Apr; 10(2):183-194. . View in PubMed

The Reverse Oblique Supracondylar Humerus Fracture: Description of a Novel Fracture Pattern J Pediatr Orthop. 2020 Feb; 40(2):e131-e137. . View in PubMed

Current status of scoliosis school screening: targeted screening of underserved populations may be the solution Public Health. 2020 Jan; 178:72-77. . View in PubMed

Dimensions of the paediatric femur: anatomical limitations of flexible intramedullary nailing J Child Orthop. 2019 Apr 01; 13(2):220-225. . View in PubMed

Improving Complex Pediatric and Adult Spine Care While Embracing the Value Equation Spine Deform. 2019 03; 7(2):228-235. . View in PubMed

Advancing Simulation-Based Orthopaedic Surgical Skills Training: An Analysis of the Challenges to Implementation Adv Orthop. 2019; 2019:2586034. . View in PubMed

Risk factors for nonunion of bone fracture in pediatric patients: An inception cohort study of 237,033 fractures Medicine (Baltimore). 2018 Aug; 97(31):e11691. . View in PubMed

3M-052 as an adjuvant for a PLGA microparticle-based Leishmania donovani recombinant protein vaccine J Biomed Mater Res B Appl Biomater. 2018 05; 106(4):1587-1594. . View in PubMed

Early Career Reflections: Observations From the First 5 Years in Practice Orthopedics. 2018 09 01; 41(5):254-255. . View in PubMed

Fluoroscopic imaging overestimates the screw tip to subchondral bone distance in a cadaveric model of slipped capital femoral epiphysis J Child Orthop. 2017; 11(1):36-41. . View in PubMed

Management Protocol For Shaft Femur Fractures in Preschool Age Children: Do We Need to Rethink? J Pediatr Orthop. 2016 Jul-Aug; 36(5):e63.. 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

Comments on Minimum of 2 Years Instead of Reporting Results at the Conclusion of Treatment (Hefferman et al, "Treatment of Femur Fractures in Young Children: A Multicenter Comparison of Flexible Intramedullary Nails to Spica Casting in Young Children Aged 2 to 6 Years" J Pediatr Orthop. 2015;35(2):126-129. J Pediatr Orthop. 2016 06; 36(4):e50. . View in PubMed

Expression and purification of an engineered, yeast-expressed Leishmania donovani nucleoside hydrolase with immunogenic properties Hum Vaccin Immunother. 2016 07 02; 12(7):1707-20. . View in PubMed

A therapeutic nanoparticle vaccine against Trypanosoma cruzi in a BALB/c mouse model of Chagas disease Hum Vaccin Immunother. 2016 04 02; 12(4):976-87. . View in PubMed

Treatment of femur fractures in young children: a multicenter comparison of flexible intramedullary nails to spica casting in young children aged 2 to 6 years J Pediatr Orthop. 2015 Mar; 35(2):126-9. . View in PubMed

Time course study of the antigen-specific immune response to a PLGA microparticle vaccine formulation Biomaterials. 2014 Sep; 35(29):8385-93. . View in PubMed

Innovation for the 'bottom 100 million': eliminating neglected tropical diseases in the Americas Adv Exp Med Biol. 2013; 764:1-12. . View in PubMed

Accelerating the development of a therapeutic vaccine for human Chagas disease: rationale and prospects Expert Rev Vaccines. 2012 Sep; 11(9):1043-55. . View in PubMed

Use of the F-Tool for the removal of a bent intramedullary femoral nail with a sagittal plane deformity Orthopedics. 2012 Mar 07; 35(3):e438-41. . View in PubMed

In vivo efficacy of a chitosan/IL-12 adjuvant system for protein-based vaccines Biomaterials. 2011 Jan; 32(3):926-32. . View in PubMed

Chemoprevention of nonmelanoma skin cancer with celecoxib: a randomized, double-blind, placebo-controlled trial J Natl Cancer Inst. 2010 Dec 15; 102(24):1835-44. . View in PubMed

Biomechanical effects of harvesting bone graft with the Reamer/Irrigator/Aspirator on the adult femur: a cadaver study Injury. 2010 Nov; 41 Suppl 2:S85-9. . View in PubMed

Medial pelvic migration of the lag screw in a short gamma nail after hip fracture fixation: a case report and review of the literature J Orthop Surg Res. 2010 Aug 27; 5:62. . View in PubMed

Upper extremity stress fractures and spondylolysis in an adolescent baseball pitcher with an associated endocrine abnormality: a case report J Pediatr Orthop. 2010 Jun; 30(4):339-43. . View in PubMed

Disulfide-crosslinked polyion micelles for delivery of protein therapeutics Ann Biomed Eng. 2009 Oct; 37(10):1993-2002. . View in PubMed

The stimulation of CD8+ T cells by dendritic cells pulsed with polyketal microparticles containing ion-paired protein antigen and poly(inosinic acid)-poly(cytidylic acid) Biomaterials. 2009 Feb; 30(5):910-8. . View in PubMed

Polyketal microparticles: a new delivery vehicle for superoxide dismutase Bioconjug Chem. 2007 Jan-Feb; 18(1):4-7. . View in PubMed

Off-label uses of biologics in dermatology: interferon and intravenous immunoglobulin (part 1 of 2) J Am Acad Dermatol. 2007 Jan; 56(1):e1-54. . View in PubMed

Transfer for urgent percutaneous coronary intervention early after thrombolysis for ST-elevation myocardial infarction: the TRANSFER-AMI pilot feasibility study Can J Cardiol. 2006 Nov; 22(13):1121-6. . View in PubMed

Polyketal nanoparticles: a new pH-sensitive biodegradable drug delivery vehicle Bioconjug Chem. 2005 Nov-Dec; 16(6):1340-2. . View in PubMed

Myocardial recovery using ventricular assist devices: prevalence, clinical characteristics, and outcomes Circulation. 2005 Aug 30; 112(9 Suppl):I32-6. . View in PubMed

Scleromyxoedema: treatment of cutaneous and systemic manifestations with high-dose intravenous immunoglobulin Br J Dermatol. 2003 Dec; 149(6):1276-81. . View in PubMed

A putative RUNX1 binding site variant between SLC9A3R1 and NAT9 is associated with susceptibility to psoriasis Nat Genet. 2003 Dec; 35(4):349-56. . View in PubMed

Prognosis of endodontically treated teeth? Point. Quintessence Int. 2003 Jul-Aug; 34(7):558-60.. View in PubMed

Relative translucency of six all-ceramic systemsPart I: core materials. J Prosthet Dent. 2002 Jul; 88(1):4-9. . View in PubMed

Relative translucency of six all-ceramic systemsPart II: core and veneer materials. J Prosthet Dent. 2002 Jul; 88(1):10-5. . View in PubMed

Pamidronate reduces skeletal morbidity in women with advanced breast cancer and lytic bone lesions: a randomized, placebo-controlled trialProtocol 18 Aredia Breast Cancer Study Group. J Clin Oncol. 1999 Mar; 17(3):846-54. . View in PubMed

Long-term prevention of skeletal complications of metastatic breast cancer with pamidronateProtocol 19 Aredia Breast Cancer Study Group. J Clin Oncol. 1998 Jun; 16(6):2038-44. . View in PubMed

Comparison of outcomes after posterior spinal fusion for adolescent idiopathic and neuromuscular scoliosis: does the surgical first assistant's level of training matter? Spine (Phila Pa 1976). 2014 Apr 15; 39(8):648-55.. View in PubMed

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