Oussama Abousamra

Title(s)Associate Professor of Clinical Orthopaedic Surgery
SchoolKeck School of Medicine of Usc
Address4640 West Sunset Blvd
Off Campus
Los Angeles CA 90027
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Clinical Measures Associated With Tibial Torsion in Ambulatory Children With Cerebral Palsy and Pes Valgus. J Pediatr Soc North Am. 2025 Feb; 10:100151. Ciccodicola E, Abousamra O, Beltran V, Rethlefsen SA, Wren TAL. PMID: 40433584; PMCID: PMC12088111.
      View in: PubMed   Mentions:
    2. Does Size Really Matter? Incidence of Periprosthetic Fractures After Femoral Osteotomy in Patients With Cerebral Palsy. J Pediatr Orthop. 2024 May-Jun 01; 44(5):e452-e456. Wimmer SP, Wren TAL, Rethlefsen SA, Abousamra ON, Kay RM. PMID: 38506352.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    3. Launching telemedicine in a tertiary ambulatory pediatric orthopedic clinic during the coronavirus disease-19 pandemic: a retrospective study. J Pediatr Orthop B. 2024 Jan 01; 33(1):97-102. Wong C, Bent MA, Omar H, Abousamra O. PMID: 36723520.
      View in: PubMed   Mentions:    Fields:    
    4. Ankle Mortise Instability in Multiple Hereditary Exostoses. J Foot Ankle Surg. 2022 Nov-Dec; 61(6):1240-1245. Ebaugh MP, Grenier G, Singh S, Abousamra O, Klingele K. PMID: 35370053.
      View in: PubMed   Mentions:    Fields:    
    5. What's New in Pediatric Orthopaedics. J Bone Joint Surg Am. 2022 02 16; 104(4):299-306. Andras LM, Whitlock PW, Abousamra O. PMID: 34932502.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    6. Absence of Peroneus Tertius in Split Anterior Tibialis Tendon Transfer Surgery. J Foot Ankle Surg. 2022 Jul-Aug; 61(4):886-887. Antoniak KS, Abousamra O. PMID: 35307159.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    7. Is Radiographic Imaging Necessary for Identifying Late Developmental Dysplasia of the Hip in Breech Infants with Normal Ultrasounds? Glob Pediatr Health. 2021; 8:2333794X211040977. Antoniak K, Lee C, Goldstein RY, Abousamra O. PMID: 34435084; PMCID: PMC8381449.
      View in: PubMed   Mentions: 2  
    8. Effect of Static Alignment on Dynamic Knee Abduction Moments in Adolescent Athletes with Recent ACL Reconstruction. Med Sci Sports Exerc. 2021 08 01; 53(8):1555-1560. Mueske NM, Abousamra O, Katzel MJ, Vandenberg CD, Pace JL, Feifer D, Wren TAL. PMID: 34261988.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    9. What's New in Pediatric Orthopaedics. J Bone Joint Surg Am. 2021 02 17; 103(4):287-294. Andras LM, Abousamra O. PMID: 33369978.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    10. Do seizures compromise correction maintenance after spinal fusion in cerebral palsy scoliosis? J Pediatr Orthop B. 2020 Nov; 29(6):538-541. Abousamra O, Sullivan BT, Shah SA, Yaszay B, Samdani AF, Cahill PJ, Newton PO, Sponseller PD. PMID: 31821271.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. Four-in-one Extensor Realignment for the Treatment of Obligatory or Fixed, Lateral Patellar Instability in Skeletally Immature Knee. J Pediatr Orthop. 2020 Oct; 40(9):503-508. Danino B, Deliberato D, Abousamra O, Singh S, Klingele K. PMID: 32555049.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    12. Response to: Titanium Elastic Nails Are a Safe and Effective Treatment for Length Unstable Pediatric Femur Fractures. J Pediatr Orthop. 2020 10; 40(9):e898-e899. Illingworth KD, Siddiqui AA, Abousamra O, Compton E, Meisel E. PMID: 32555050.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    13. 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. Rethlefsen SA, Hanson AM, Wren TAL, Abousamra O, Kay RM. PMID: 33204349; PMCID: PMC7666790.
      View in: PubMed   Mentions: 6  
    14. Titanium Elastic Nails Are a Safe and Effective Treatment for Length Unstable Pediatric Femur Fractures. J Pediatr Orthop. 2020 Aug; 40(7):e560-e565. Siddiqui AA, Abousamra O, Compton E, Meisel E, Illingworth KD. PMID: 31770170.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    15. Hip Dysplasia Is Not More Common in W-Sitters. Clin Pediatr (Phila). 2020 10; 59(12):1074-1079. Rethlefsen SA, Mueske NM, Nazareth A, Abousamra O, Wren TAL, Kay RM, Goldstein RY. PMID: 32659120.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    16. 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. Illingworth KD, Siddiqui AA, Abousamra O, Meisel EM, Kay RM. PMID: 32582394; PMCID: PMC7302417.
      View in: PubMed   Mentions:
    17. 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. Lullo B, Nazareth A, Rethlefsen S, Illingworth KD, Abousamra O, Kay RM. PMID: 33970577; PMCID: PMC7434038.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    18. 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. Siddiqui AA, Illingworth KD, Abousamra OA, Meisel EM, Kay RM. PMID: 32351626; PMCID: PMC7184642.
      View in: PubMed   Mentions: 3  
    19. Occiput-to-pelvis spinal arthrodesis: a case series. Spine Deform. 2020 02; 8(1):147-148. Hadad MJ, Abousamra O, Sullivan BT, Sponseller PD. PMID: 31981145.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    20. Deep Infections After Pediatric Spinal Arthrodesis: Differences Exist with Idiopathic, Neuromuscular, or Genetic and Syndromic Cause of Deformity. J Bone Joint Surg Am. 2019 Dec 18; 101(24):2219-2225. Sullivan BT, Abousamra O, Puvanesarajah V, Jain A, Hadad MJ, Milstone AM, Sponseller PD. PMID: 31609894.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    21. Occiput-to-Pelvis Spinal Arthrodesis: A Case Series. Spine Deform. 2019 11; 7(6):992-1002. Hadad MJ, Abousamra O, Sullivan BT, Sponseller PD. PMID: 31732013.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    22. Cervical Spine Deformities in Children With Rhizomelic Chondrodysplasia Punctata. J Pediatr Orthop. 2019 Oct; 39(9):e680-e686. Abousamra O, Kandula V, Duker AL, Rogers KJ, Bober MB, Mackenzie WG. PMID: 31503224.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    23. Closed vs open reduction in developmental dysplasia of the hip: The short-term effect on acetabular remodeling. J Clin Orthop Trauma. 2020 Mar-Apr; 11(2):213-216. Abousamra O, Deliberato D, Singh S, Klingele KE. PMID: 32099282; PMCID: PMC7026546.
      View in: PubMed   Mentions: 6  
    24. Long-term outcome of knee hyperextension in children with cerebral palsy. J Pediatr Orthop B. 2019 Jul; 28(4):345-350. Abousamra O, Connor J, Church C, Taylor D, Lennon N, Del Pilar Duque Orozco M, Henley J, Sees J, Miller F. PMID: 30649088.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    25. Valgus Hip Osteotomy in Children With Spondyloepiphyseal Dysplasia Congenita: Midterm Results. J Pediatr Orthop. 2019 Jul; 39(6):282-288. Bayhan IA, Abousamra O, Rogers KJ, Bober MB, Miller F, Mackenzie WG. PMID: 31169747.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    26. Thoracic Lordosis, Especially in Males, Increases Blood Loss in Adolescent Idiopathic Scoliosis. J Pediatr Orthop. 2019 Mar; 39(3):e201-e204. Abousamra O, Sponseller PD, Lonner BS, Shah SA, Marks MC, Cahill PJ, Pahys JM, Newton PO, Harms Study Group. PMID: 30260921.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    27. Three Methods of Pelvic Fixation for Scoliosis in Children With Cerebral Palsy: Differences at 5-year Follow-Up. Spine (Phila Pa 1976). 2019 Jan 01; 44(1):E19-E25. Abousamra O, Sullivan BT, Samdani AF, Yaszay B, Cahill PJ, Newton PO, Sponseller PD. PMID: 29939974.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    28. Sagittal Spinopelvic Parameters in Children With Achondroplasia. Spine Deform. 2019 01; 7(1):163-170. Abousamra O, Shah SA, Heydemann JA, Kreitz TM, Rogers KJ, Ditro C, Mackenzie WG. PMID: 30587311.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    29. Radiographic Analysis of the Pediatric Hip Patients With Hereditary Multiple Exostoses (HME). J Pediatr Orthop. 2018 Jul; 38(6):305-311. Duque Orozco MDP, Abousamra O, Rogers KJ, Thacker MM. PMID: 27328120.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    30. Foot and ankle deformities in children with Down syndrome. J Child Orthop. 2018 Jun 01; 12(3):218-226. Perotti LR, Abousamra O, Del Pilar Duque Orozco M, Rogers KJ, Sees JP, Miller F. PMID: 29951120; PMCID: PMC6005220.
      View in: PubMed   Mentions: 4  
    31. Prophylactic antibiotics in soft-tissue procedures in children with cerebral palsy. J Child Orthop. 2018 Jun 01; 12(3):279-281. Perotti LR, Abousamra O, Rogers KJ, Miller F, Sees JP. PMID: 29951128; PMCID: PMC6005213.
      View in: PubMed   Mentions: 1  
    32. Knee Deformities in Children With Down Syndrome: A Focus on Knee Malalignment. J Pediatr Orthop. 2018 May/Jun; 38(5):266-273. Duque Orozco MDP, Abousamra O, Chen BP, Rogers KJ, Sees JP, Miller F. PMID: 27328121.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    33. The effect of plantar flexor lengthening on foot pressure in ambulatory children with cerebral palsy. J Pediatr Orthop B. 2018 May; 27(3):200-205. Abousamra O, Schwartz J, Church C, Lennon N, Henley J, Niiler T, Miller F. PMID: 28953163.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    34. Risk factors for pancreatitis after posterior spinal fusion in children with cerebral palsy. J Pediatr Orthop B. 2018 Mar; 27(2):163-167. Abousamra O, Nishnianidze T, Rogers KJ, Er MS, Sees JP, Dabney KW, Miller F. PMID: 27509481.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    35. Magnetic Resonance Imaging in Symptomatic Children With Hereditary Multiple Exostoses of the Hip. J Pediatr Orthop. 2018 Feb; 38(2):116-121. Duque Orozco MDP, Abousamra O, Rogers KJ, Thacker MM. PMID: 27137903.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    36. What's New in the Management of Foot Deformities in Children With Cerebral Palsy. J Pediatr Orthop. 2018 Jan; 38(1):e20-e24. Heydemann JA, Abousamra O, Franzone JM, Kaufman BE, Sees JP. PMID: 27861211.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    37. Long-term Outcome of Internal Tibial Derotation Osteotomies in Children With Cerebral Palsy. J Pediatr Orthop. 2017 Oct/Nov; 37(7):454-459. Er MS, Abousamra O, Rogers KJ, Bayhan IA, Church C, Henley J, Niiler T, Miller F. PMID: 26491913.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    38. Long-term Outcome of External Tibial Derotation Osteotomies in Children With Cerebral Palsy. J Pediatr Orthop. 2017 Oct/Nov; 37(7):460-465. Er MS, Bayhan IA, Rogers KJ, Abousamra O, Church C, Henley J, Miller F. PMID: 26491914.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    39. Upper Cervical Fusion in Children With Spondyloepiphyseal Dysplasia Congenita. J Pediatr Orthop. 2017 Oct/Nov; 37(7):466-472. Serhan Er M, Abousamra O, Rogers K, Akyol Y, Palocaren T, Takemitsu M, Campbell JW, Mackenzie WG. PMID: 26683502.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    40. Persistence and Recurrence Following Femoral Derotational Osteotomy in Ambulatory Children With Cerebral Palsy. J Pediatr Orthop. 2017 Oct/Nov; 37(7):447-453. Church C, Lennon N, Pineault K, Abousamra O, Niiler T, Henley J, Dabney K, Miller F. PMID: 26636742.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    41. Infections of Intrathecal Baclofen Delivery Systems and Ventriculoperitoneal Shunting Systems: Clinical Series Discussion. Pediatr Neurosurg. 2018; 53(1):1-6. Abousamra O, Duque Orozco MDP, Rogers KJ, Miller F, Sees JP. PMID: 28866663.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansPHPublic Health
    42. Scoliosis in Down's syndrome. J Pediatr Orthop B. 2017 Jul; 26(4):383-387. Abousamra O, Duque Orozco MDP, Er MS, Rogers KJ, Sees JP, Miller F. PMID: 27548438.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    43. Hip Reconstruction in Children With Unilateral Cerebral Palsy and Hip Dysplasia. J Pediatr Orthop. 2016 Dec; 36(8):834-840. Abousamra O, Er MS, Rogers KJ, Nishnianidze T, Dabney KW, Miller F. PMID: 26057069.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    44. Hip Instability in Down Syndrome: A Focus on Acetabular Retroversion. J Pediatr Orthop. 2016 Jul-Aug; 36(5):499-504. Abousamra O, Bayhan IA, Rogers KJ, Miller F. PMID: 25887825.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    45. Reliability and validity of Edinburgh visual gait score as an evaluation tool for children with cerebral palsy. Gait Posture. 2016 09; 49:14-18. Del Pilar Duque Orozco M, Abousamra O, Church C, Lennon N, Henley J, Rogers KJ, Sees JP, Connor J, Miller F. PMID: 27344448.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    46. Correction of Pelvic Obliquity After Spinopelvic Fixation in Children With Cerebral Palsy: A Comparison Study With Minimum Two-Year Follow-up. Spine Deform. 2016 May; 4(3):217-224. Abousamra O, Nishnianidze T, Rogers KJ, Bayhan IA, Yorgova P, Shah SA. PMID: 27927506.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    47. Factors predicting postoperative complications following spinal fusions in children with cerebral palsy scoliosis. Eur Spine J. 2016 Feb; 25(2):627-34. Nishnianidze T, Bayhan IA, Abousamra O, Sees J, Rogers KJ, Dabney KW, Miller F. PMID: 26410446.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    48. Evaluation of intrathecal baclofen delivery system malfunction by computed tomography scan. Dev Med Child Neurol. 2016 Apr; 58(4):409-15. Abousamra O, Rogers KJ, McManus M, Miller F, Sees JP. PMID: 26358299.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
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