Hip Preservation Program
Overview
Under the leadership of Director Alfred A. Mansour III, MD, and Co-Director David R. Maldonado, MD, the Comprehensive Hip Preservation Program advances research to improve the diagnosis, treatment and recovery of adolescents and adults with complex hip conditions.
Dr. Mansour’s research focuses on adolescent and young adult hip preservation, including return to sports after periacetabular osteotomy, perioperative pain management and the use of 3D computer modeling to improve surgical planning. He also studies complex knee preservation in collaboration with Walter R. Lowe, MD. Their work examines knee kinematics after high tibial osteotomy and slope-reducing high tibial osteotomy, as well as the effects of limb alignment on patellar tracking.
Dr. Maldonado’s clinical and academic expertise focuses on advanced and complex hip preservation, with particular emphasis on revision hip arthroscopy, complex labral preservation and reconstruction, and ligamentum teres reconstruction. His expertise also encompasses femoroacetabular impingement, capsular management and hip microinstability, borderline hip dysplasia, and the open and endoscopic treatment of complex extra-articular hip pathology, including gluteus medius and minimus tears and proximal hamstring injuries. His research focuses on patient selection, surgical decision-making, advanced and revision surgical techniques, and outcomes following complex hip preservation surgery. He has authored more than 250 peer-reviewed publications, with extensive contributions to the advancement of hip preservation and hip arthroscopy.
Together, Dr. Mansour and Dr. Maldonado bring complementary expertise in open and arthroscopic hip preservation. Their research supports more precise surgical planning, evidence-based treatment and improved outcomes across the full spectrum of hip preservation care.
Hip Preservation Program Directors

Alfred A. Mansour III, MD, Program Director

David R. Maldonado, MD, Program Co-Director
Recent publications
- American Academy of Orthopaedic Surgeons. Appropriate Use Criteria for the Management of Developmental Dysplasia of the Hip in Infants up to Six Months of Age: Intended for Use by Orthopaedic Specialists. aaos.org/ddhspecialistsauc. Published March 5, 2018.
- Haidar, Layla A. BSA; Sliwinski, Lisa MD; Warth, Ryan J. MD; Mansour, Alfred III MD Placement of Provisional External Fixation of Pediatric Femoral Shaft Fractures Using Radiopaque Markers in the Setting of Severe Polytrauma, Techniques in Orthopaedics: April 26, 2019 – Volume Publish Ahead of Print – Issue – doi: 10.1097/BTO.0000000000000383
- Haidar L, Warth R, Waite EPA, Mansour A. Standard Radiographic Assessment of Femoral Cam Morphology is Influenced by Neck-Shaft Angle and Femoral Version. Orthop J Sports Med. 2020;8(7 suppl6):2325967120S00392. Published 2020 Jul 31. doi:10.1177/2325967120S00392
- Anthony Soto, Layla A. Haidar, Scott Crosby, Erin Orozco, Alfred Mansour, Technique for Intraoperative Neuromonitoring During Periacetabular Osteotomy After Concomitant Hip Arthroscopy, Arthroscopy Techniques, https://doi.org/10.1016/j.eats.2020.08.005.
- Tonnis Angle and Acetabular Retroversion Measurements in Asymptomatic Hips Are Predictive of Future Hip Pain: A Retrospective, Prognostic Clinical Study. JAAOS: Global Research and Reviews. 4(12): e20.00213, December 2020.
- Ross, B. J., Wu, V. J., Mansour III, A. A., Lee, O. C., & Sherman, W. F. (2021). Opioid claims prior to elective total joint arthroplasty and risk of prolonged postoperative opioid claims. JAAOS-Journal of the American Academy of Orthopaedic Surgeons, 10-5435.
- Rogers, N. B., Roper, B. P., & Mansour, A. A. (2021). Pathologic Femur Fracture through Osteoid Osteoma after Radiofrequency Ablation: Case Report and Review of the Literature. Case Reports in Orthopedics, 2021.
- Olaoluwa Omotowa; Analisa J. Narro; Shuyang Han; Sabir K. Ismaily; Alfred A. Mansour; Melvyn Harrington; Philip Noble. “Influence Of Periacetabular Osteotomy On Femoral Head Coverage And Range Of Motion In Dysplastic Hips.” Poster presentation at: Orthopedic Research Society 2022 Annual Meeting
- Olaoluwa Omotowa; Analisa J. Narro; Shuyang Han; Sabir K. Ismaily; Alfred A. Mansour; Melvyn Harrington; Philip Noble. “Influence Of Periacetabular Osteotomy On Femoral Head Coverage And Range Of Motion In Dysplastic Hips.” Poster presentation at AAOS 2022