Director, Limb Lengthening and Reconstruction Program
Attending Surgeon

Assistant Professor of Clinical Orthopedic Surgery, Keck School of Medicine of USC
  • Summary
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Clinical Interests

Limb lengthening and reconstruction: congenital limb deficiencies, developmental and post-traumatic limb deformity
Neuromuscular disorders: cerebral palsy, spina bifida, muscular dystrophy
Skeletal dysplasia
Gait disorders


Medical School: 

University of Damascus


Orthopedic Surgery - University of Damascus


Clinical Fellowship - Johns Hopkins Hospital

Clinical Fellowship - Nationwide Children's Hospital

Research Fellowship - Alfred I. duPont Hospital for Children


Professional Memberships: 

American Academy of Orthopaedic Surgeons AAOS
Pediatric Orthopaedic Society of North America POSNA
Limb Lengthening and Reconstruction Society LLRS
American Academy of Cerebral Palsy and Developmental Medicine AACPDM
Gait and Clinical Movement Analysis Society GCMAS


Abousamra O, Deliberato D, Singh S, Klingele KE. Closed vs. Open Reduction in Developmental Dysplasia of the Hip: The Effect on Acetabular Remodeling. J Clin Orthop Trauma 2020 Mar-Apr; 11(2):213-216.

Abousamra O, Sullivan BT, Shah SA, Yaszay B, Samdani AF, Cahill PJ, Newton PO, Sponseller PD. Seizures and Maintenance of Correction after Scoliosis Surgery in Patients with Cerebral Palsy. J Pediatr Orthop B. 2019 Dec 9.

Siddiqui AA, Abousamra O, Compton E, Meisel E, Illingworth KD. Titanium Elastic Nails are a Safe and Effective Treatment for Length Unstable Pediatric Femur Fractures. J Pediatr Orthop. 2019 Nov 22.

Hadad MJ, Abousamra O, Sullivan BT, Sponseller PD. Occiput-to-Pelvis Spinal Arthrodesis: A Case Series. Spine Deform. 2019 Nov;7(6):992-1002.

Sullivan BT, Abousamra O, Puvanesarajah V, Jain A, Hadad MJ, Milstone AM, Sponseller PD. Deep Infections After Pediatric Spinal Arthrodesis: Differences Exist with Idiopathic, Neuromuscular, or Genetic and Syndromic Cause of Deformity. JBJS 2019 Oct 11.

Research Interests: 

Limb deformity
Neuromuscular disorders
Gait disorders

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