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Clinical Research

Experts in the Department of Orthopaedic Surgery are dedicated to advancing the field through thoughtful and groundbreaking clinical research. Their discoveries impact the diagnosis and treatment of orthopaedic conditions and  the quality of life for patients and their families.

Our Clinical Researchers

Photo of Dr. Stephen M. Belkoff, Ph.D.

Belkoff, Stephen M., Ph.D.

Associate Professor of Orthopaedic Surgery
Director, Orthopaedic Instrumentation Laboratory
Director, International Center for Orthopaedic Advancement
Research Interests: Joint reconstruction, Mechanics of fracture fixation, Mechanism of injury, Trauma biomechanics, Soft-tissue characterization, Vertebroplasty
 
Photo of Dr. David Bradford Cohen, M.D., M.P.H.

Cohen, David Bradford, M.D., M.P.H.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Back Disorders, Cervical Degenerative Disc Disease, Cervical Degenerative Disc Herniation, Cervical Disc Herniation, Cervical Myelopathy, Cervical Radiculopathy, Cervical Spine Trauma, Cervical Spondylosis, Coccydynia, Coccygectomy, Complex Spinal Reconstructions, Degenerative Disc Disease, Degenerative Spine Disease, Disc Pain, Herniated Disc, Kyphosis, Lumbar Degenerative Disease, Lumbar Disc Herniation, Lumbar Radiculopathy, Minimally Invasive Spine Surgery, Orthopaedic Surgery, Orthopaedics, Revision Spinal Surgery, Sacroiliac Joint Conditions, Sacroiliitis, Scoliosis, Spinal Decompression, Spinal Deformities, Spinal Fixation, Spinal Fusion, Spinal Reconstruction, Spinal Stenosis, Spinal Trauma, Spine, Spine and Spinal Deformities, Spondylolisthesis, Spondylosis, Thoracic Disc Herniation, Thoracic Spine Surgery
Research Interests: Spinal deformities, Patient safety, Scoliosis, Development of large animal osteoporosis model, Vertebral augmentation, Spinal osteoporosis, Clinical outcomes studies
 
Photo of Dr. Andrew John Cosgarea, M.D.

Cosgarea, Andrew John, M.D.

Professor of Orthopaedic Surgery
The Drew Family Professor of Orthopaedic Surgery in honor of Alec J. Cosgarea
Chief, Division of Sports Medicine, Department of Orthopaedic Surgery
Head Team Physician, Johns Hopkins University Athletic Department
Expertise, Disease and Conditions: ACL Reconstruction, Arthroscopic Rotator Cuff Repair, Baseball Injuries, Elbow UCL Reconstruction, Knee Meniscus Repair, Orthopaedic Surgery, Orthopaedics, Patellar Instability Stabilization, Pediatric and Adolescent Sports Injuries, Shoulder Instability Stabilization Surgery, Shoulder Joint Dislocations, Sports Medicine, Superior Labrum Anterior and Posterior (SLAP) Lesions
Research Interests: Knee and shoulder rehabilitation, Adolescent sports injuries, Computer simulation of knee biomechanics, ACL reconstruction, Patellofemoral disorders and treatment, Knee biomechanics, Patellofemoral instability, Throwing shoulder biomechanics, Surgical and nonsurgical treatment of sports injuries
 
Photo of Dr. Rajwinder Singh Deu, M.D.

Deu, Rajwinder Singh, M.D.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Elbow Injuries, Joint Pain, Knee Injuries, Muscle Strain Injuries of the Hip, Musculoskeletal Disorders, Musculoskeletal Injuries, Orthopaedic Surgery, Orthopaedics, Pediatric and Adolescent Sports Injuries, Sports Injuries, Sports Injuries to the Ankle, Sports Injuries to the Shoulder, Sports Medicine (non-surgical)
Research Interests: Comprehensive medical care of athletes
 
Photo of Dr. E Gene Deune, M.D.

Deune, E Gene, M.D.

Associate Professor of Orthopaedic Surgery
Associate Professor of Plastic and Reconstructive Surgery
Division Chief, Hand Surgery
Expertise, Disease and Conditions: Arthritis of the Fingers, Arthritis of the Hand, Benign Tumors, Carpal Tunnel Syndrome, Congenital Hand Anomalies, Cubital Tunnel Syndrome, Dupuytren's Contracture, General Reconstruction, Hand Conditions, Hand Fractures, Hand Reconstruction, Limb Salvage Surgery, Microvascular Free Flap Surgery, Microvascular Reconstruction, Orthopaedic Surgery, Orthopaedics, Peripheral Nerve Disorders, Polydactyly (extra fingers), Skin Cancer, Soft Tissue and Tendon Injuries of the Hand and Fingers, Syndactyly-Webbed Fingers, Tendonitis of the Fingers, Tendonitis of the Hand and Wrist, Upper Extremity Reconstruction
Research Interests: Hand surgery, Microvascular surgery, Extremity tumor and reconstruction
 
Photo of Dr. Sameer Dixit, M.D.

Dixit, Sameer, M.D.

Assistant Professor of Orthopaedic Surgery
Assistant Professor of Medicine
Assistant Professor of Physical Medicine and Rehabilitation
Expertise, Disease and Conditions: Ankle Injuries, Baseball Injuries, Elbow Injuries, Fractures, Hip Injuries, Internal Medicine, Knee Injuries, Lateral Collateral Ligament Tears (LCL) Injury, Muscle Strain Injuries of the Hip, Musculoskeletal Injuries, Musculoskeletal Related Abdominal Pain, Orthopaedics, Sports Injuries, Sports Injuries to the Ankle, Sports Injuries to the Shoulder, Sports Medicine, Sports Medicine (non-surgical), Traumatic Brain Injury
 
Photo of Dr. James Robert Ficke, M.D.

Ficke, James Robert, M.D.

Professor of Orthopaedic Surgery
Robert A. Robinson Professor of Orthopaedic Surgery
Director, Department of Orthopaedic Surgery
Orthopaedist-in-Chief, The Johns Hopkins Hospital
Expertise, Disease and Conditions: Amputation, Foot and Ankle, Orthopaedic Surgery, Orthopaedics
Research Interests: Lower Extremity Trauma Outcomes, Post-Traumatic Osteoarthritis, Orthopaedic Rehabilitation
 
Photo of Dr. Erik Anton Hasenboehler, M.D.

Hasenboehler, Erik Anton, M.D.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Bone Fractures, Fracture surgery, Fractures, Hip Replacement, Malunions, Orthopaedic Surgery, Orthopaedics, Osteomyelitis, Tibial Fracture, Trauma, Trauma and Post Traumatic Reconstruction, Trauma Surgery
Research Interests: Orthopaedic rehabilitation, Post-traumatic osteoarthritis, Lower extremity trauma outcomes
 
Photo of Dr. John Victor Ingari, M.D.

Ingari, John Victor, M.D.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Arthrogryposis, Carpal Injuries, Carpal Tunnel Syndrome, Congenital Hand Anomalies, Cubital Tunnel Syndrome, Elbow Arthroscopy, Elbow Injuries, Elbow UCL Reconstruction, Hand Conditions, Hand Surgery, Nerve Compression, Orthopaedic Hand Surgery, Orthopaedic Surgery, Peripheral Nerve Disorders, Syndactyly-Webbed Fingers, Tennis Elbow, Total Elbow Replacement, Trigger Finger, Upper Extremity Surgery
 
Photo of Dr. Lynne C. Jones, M.S., Ph.D.

Jones, Lynne C., M.S., Ph.D.

Associate Professor of Orthopaedic Surgery
Director, Center for Osteonecrosis Research and Education
Director of Resident Research
Director, Hip & Knee Surgery Research
Research Interests: Osteonecrosis, Total Joint Replacement, Bone Graft and Bone Graft Substitutes, Animal models of musculoskeletal disease
 
Photo of Dr. Khaled M Kebaish, M.B.B.Ch., M.S.

Kebaish, Khaled M, M.B.B.Ch., M.S.

Professor of Orthopaedic Surgery
Professor of Neurosurgery
Division Chief, Spine Surgery Division
Director, Spine Fellowship Program
Expertise, Disease and Conditions: Degenerative Disc Disease, Degenerative Spine Disease, Disc Pain, Orthopaedic Surgery, Orthopaedics, Scoliosis, Spinal Tumors, Spine, Spine and Spinal Deformities, Spine Surgery, Spine Tumors
Research Interests: Disc degeneration and biological repair, Spine biomechanics, Clinical outcomes in spinal deformity
 
Photo of Dr. Akhil Jay Khanna, M.D.

Khanna, Akhil Jay, M.D.

Professor of Orthopaedic Surgery
Professor of Biomedical Engineering
Vice Chair, Professional Development
Division Chief, Johns Hopkins Orthopaedic and Spine Surgery- National Capital Region
Expertise, Disease and Conditions: Back Disorders, Back Pain, Cervical Degenerative Disc Disease, Cervical Degenerative Disc Herniation, Cervical Disc Herniation, Cervical Myelopathy, Cervical Radiculopathy, Cervical Spine Trauma, Degenerative Disc Disease, Degenerative Spine Disease, Herniated Disc, Lumbar Degenerative Disease, Lumbar Disc Herniation, Lumbar Radiculopathy, Minimally Invasive Spine Surgery, Orthopaedic Surgery, Orthopaedics, Scoliosis, Spinal Decompression, Spinal Deformities, Spinal Disorders, Spinal Fixation, Spinal Fusion, Spinal Instability, Spinal Pain, Spinal Reconstruction, Spinal Stenosis, Spinal Trauma, Spine, Spine Surgery, Spondylolisthesis
Research Interests: Minimally Invasive Spine Surgery, Spine Biomechanics, Outcomes after Spine Surgery, Advanced Musculoskeletal and Spine Imaging, Osteoporosis, Advanced Image Guidance Techniques for Spine Surgery
 
Photo of Dr. Harpal Singh Khanuja, M.D.

Khanuja, Harpal Singh, M.D.

Associate Professor of Orthopaedic Surgery
Chief, Adult Reconstruction - Hip and Knee Replacement
Chief, Department of Orthopaedic Surgery, Johns Hopkins Bayview
Expertise, Disease and Conditions: Avascular Necrosis (AVN) of the Hip, Avascular Necrosis (AVN) of the Knee, Core Decompression for Avascular Necrosis of the Hip, Degenerative Joint Disease (Osteoarthritis of the Hip), Hip Arthritis, Hip Conditions, Hip Dislocations, Hip Fractures, Hip Impingement, Hip Injuries, Hip Replacement, Knee Arthritis, Knee Injuries, Knee Replacement, Knee Surgery, Orthopaedic Surgery, Osteochondritis Dissecans of the Knee, Partial Knee Replacement, Revision Hip Surgery, Revision Knee with Tibial Tubercle Osteotomy, Septic Arthritis of the Knee, Total Hip Replacement, Total Joint Replacement, Total Knee Replacement
Research Interests: Joint replacement technologies, Patient safety, Computer-assisted surgery, Osteonecrosis, Cartilage repair
 
Photo of Dr. Dawn LaPorte, M.D.

LaPorte, Dawn, M.D.

Professor of Orthopaedic Surgery
Vice Chairman, Education
Residency Program Director, Orthopaedic Surgery
Expertise, Disease and Conditions: Arthritis of the Fingers, Arthritis of the Hand, Arthritis of the Wrist, Avascular Necrosis (AVN) of the Hand and Wrist, Carpal Injuries, Carpal Tunnel Syndrome, Dupuytren's Contracture, Hand Conditions, Hand Reconstruction, Hand Surgery, Nerve Compression, Orthopaedic Hand Surgery, Orthopaedic Surgery, Orthopaedics, Peripheral Nerve Disorders, Rheumatoid Arthritis, Tendon Transfer, Tendonitis of the Elbow, Tendonitis of the Fingers, Tendonitis of the Hand and Wrist, Ulnar Neuropathy, Upper Extremity Reconstruction
Research Interests: Resident education, Wrist innervation, Wrist pain, Triangular fibrocartilage complex (TFCC) tears, Peripheral nerve
 
Photo of Dr. Rushyuan Jay Lee, M.D.

Lee, Rushyuan Jay, M.D.

Assistant Professor of Orthopaedic Surgery
Director, Pediatric Orthopaedic Fellowship
Expertise, Disease and Conditions: ACL Reconstruction, Ankle Injuries, Arthroscopic Surgery, Discoid Meniscus, Elbow Injuries, Femoral-Acetabular Impingement (FAI), Growth Plate and Physeal-Sparing ACL Reconstruction, Knee Dislocations, Knee Injuries, Lateral Collateral Ligament Tears (LCL) Injury, Leg Length Inequality, Loose Body Removal (Knee), Medial Collateral Ligament Tears (MCL) Injury, Medial Patellar Femoral Ligament (MPFL) Injury, Meniscus Tears, Multi-Ligament Knee Injuries, Orthopaedic Surgery, Orthopaedics, Osteochondral Defects, Osteochondral Lesions, Osteochondritis Dissecans of the Knee, Patellar Dislocations, Patellar Instability Stabilization, Pediatric ACL Reconstruction, Shoulder Dislocations, Shoulder Disorders, Shoulder Instability Stabilization Surgery, Shoulder Labral Tear, Sports Injuries, Superior Labrum Anterior and Posterior (SLAP) Lesions, Tear - Anterior Cruciate Ligament (ACL), Tear - Posterior Cruciate Ligament (PCL), Tibial Spine/Eminence Fracture
Research Interests: ACL tears, Injuries in Young Athletes, Fractures, Multi-Ligament Knee Injuries, Patellar Dislocations and Instability, Meniscus Tears and Discoid Meniscus, Osteochondritis Dissecans, Arthroscopy, Fracture Care
 
Photo of Dr. Adam Scott Levin, M.D.

Levin, Adam Scott, M.D.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Benign Tumors, Bone Sarcoma, Bone Tumors, Metastatic Bone Disease, Metastatic Disease, Orthopaedic Oncology, Orthopaedic Surgery, Orthopaedics, Sarcoma, Sarcoma and Musculoskeletal Tumors, Soft Tissue Sarcoma, Soft Tissue Tumors
Research Interests: Nanotechnology and Novel Drug Delivery Platforms for Bone Tumors, Metastatic Bone Disease, Sarcoma
 
Photo of Dr. Edward George McFarland, M.D.

McFarland, Edward George, M.D.

Professor of Orthopaedic Surgery
Wayne H. Lewis Professor of Orthopaedic and Shoulder Surgery
Director, Division of Shoulder Surgery
Expertise, Disease and Conditions: Anterior Shoulder Instability, Arthritis of the Shoulder, Baseball Injuries, Elbow Injuries, Elbow UCL Reconstruction, Joint Replacement, Orthopaedic Shoulder Surgery, Orthopaedic Surgery, Orthopaedic Trauma, Pediatric and Adolescent Sports Injuries, Rotator Cuff, Rotator Cuff Injuries, Shoulder Arthroscopy, Shoulder Dislocations, Shoulder Disorders, Shoulder Fractures, Shoulder Instability Stabilization Surgery, Shoulder Joint Dislocations, Shoulder Labral Tear, Shoulder Replacement, Shoulder Surgery, Sports Injuries, Sports Injuries to the Shoulder, Superior Labrum Anterior and Posterior (SLAP) Lesions, Tendonitis of the Elbow, Tennis Elbow, Total Elbow Replacement
Research Interests: Sports shoulder injuries, Shoulder replacement surgery, primary and revision surgery, Examination of the shoulder, Epidemiology of shoulder injuries, Injuries to athlete elbow
 
Photo of Dr. Carol Diane Morris, M.D., M.S.

Morris, Carol Diane, M.D., M.S.

Associate Professor of Orthopaedic Surgery
Associate Professor of Oncology
Division Chief, Orthopaedic Oncology
Expertise, Disease and Conditions: Bone Cancer, Bone Sarcoma, Bone Tumors, Chondrosarcoma, Ewing's Sarcoma, Metastatic Bone Disease, Orthopaedic Oncology, Orthopaedic Surgery, Osteosarcoma, Pathologic Fractures, Sarcoma, Sarcoma and Musculoskeletal Tumors, Soft Tissue Sarcoma, Soft Tissue Tumors
Research Interests: sarcoma, complex limb reconstruction
 
Photo of Dr. Brian James Neuman, M.D.

Neuman, Brian James, M.D.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Cervical Myelopathy, Cervical Radiculopathy, Degenerative Spine Disease, Lumbar Degenerative Disease, Lumbar Disc Herniation, Lumbar Radiculopathy, Lumbar Spine Diseases, Minimally Invasive Spine Surgery, Orthopaedic Surgery, Radiculopathy, Spinal Decompression, Spinal Fusion, Spinal Stenosis, Spinal Trauma, Spine Surgery
Research Interests: Clinical outcomes after reconstructive spinal deformity surgery, Adjacent segment disease, Sagittal imbalance
 
Photo of Dr. Greg Michael Osgood, M.D.

Osgood, Greg Michael, M.D.

Assistant Professor of Orthopaedic Surgery
Chief, Orthopaedic Trauma, Department of Orthopaedic Surgery
Expertise, Disease and Conditions: Femoral Fractures, Hip Conditions, Hip Dislocations, Hip Fractures, Lower Extremity Trauma, Orthopaedic Surgery, Orthopaedics, Pelvic Reconstruction, Trauma and Post Traumatic Reconstruction, Trauma Surgery
 
Photo of Dr. Lee Hunter Riley, III, M.D.

Riley, Lee Hunter, M.D. III

Professor of Orthopaedic Surgery
Professor of Neurosurgery
Vice Director, Clinical Operations
Zadek Family Professorship in Orthopaedic Surgery
Expertise, Disease and Conditions: Cervical Degenerative Disc Disease, Cervical Degenerative Disc Herniation, Degenerative Spine Disease, Orthopaedic Surgery, Spine, Spine and Spinal Deformities, Spine Surgery, Spine Tumors
Research Interests: Cervical spine disorder, Vertebroplasty, Metastatic disease, Disc degeneration
 
Photo of Dr. Richard Andrew Schaefer, M.D., M.P.H.

Schaefer, Richard Andrew, M.D., M.P.H.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Musculoskeletal Disorders, Musculoskeletal Injuries, Musculoskeletal Tumors Involving the Extremities, Orthopaedic Oncology, Orthopaedic Surgery
 
Photo of Dr. Babar Shafiq, M.D., M.S.

Shafiq, Babar, M.D., M.S.

Assistant Professor of Orthopaedic Surgery
Expertise, Disease and Conditions: Orthopaedic Surgery, Orthopaedic Trauma
Research Interests: Periarticular imaging, Pelvic and Acetabulum fracture repair, Ankle/syndesmotic fractures
 
Photo of Dr. Richard Leroy Skolasky, Jr., M.A., Sc.D.

Skolasky, Richard Leroy, M.A., Sc.D. Jr.

Associate Professor of Orthopaedic Surgery
Associate Professor of Physical Medicine and Rehabilitation
Director, Spine Outcomes Research Center
Research Interests: Spine biomechanics, Psycho-social determinates of health, Health disparities, Health services research, Functional outcomes of spine surgery
 
Photo of Dr. Paul David Sponseller, M.D.

Sponseller, Paul David, M.D.

Professor of Orthopaedic Surgery
Professor of Urology
Chief, Division of Pediatric Orthopaedics
Sponseller Professor of Pediatric Orthopaedics
Expertise, Disease and Conditions: Achondroplasia, Blount's Disease, Cerebral Palsy, Clubfeet, Fractures, Hip Dislocations, Hip Dysplasia, Kyphosis, Leg Length Inequality, Marfan Syndrome, Orthopaedic Surgery, Orthopaedics, Osteogenesis Imperfecta, Osteomyelitis, Pediatric Spinal Deformity, Scoliosis, Skeletal Dysplasias, Spina Bifida, Spondylolisthesis, Spondylosis
Research Interests: Marfan Syndrome, Pediatric Spinal Deformity, Bladder exstrophy, Pediatric skeletal trauma
 
Photo of Dr. Umasuthan Srikumaran, M.D.

Srikumaran, Umasuthan, M.D.

Assistant Professor of Orthopaedic Surgery
Chair, Johns Hopkins Orthopaedic Surgery at Howard County General Hospital
Director, Shoulder Fellowship
Expertise, Disease and Conditions: Anterior Shoulder Instability, Arthritis, Arthritis of the Shoulder, Arthroscopic Rotator Cuff Repair, Arthroscopic Surgery, Baseball Injuries, Bone Disorders, Bone Surgery, Fractures, Joint Diseases, Joint Pain, Joint Surgery, Minimally Invasive Surgery, Orthopaedic Shoulder Surgery, Orthopaedic Surgery, Orthopaedics, Rotator Cuff, Rotator Cuff Injuries, Shoulder Arthroscopy, Shoulder Dislocations, Shoulder Disorders, Shoulder Fractures, Shoulder Instability Stabilization Surgery, Shoulder Joint Dislocations, Shoulder Labral Tear, Shoulder Replacement, Shoulder Surgery, Shoulder Ultrasound, Sports Injuries, Sports Injuries to the Shoulder, Sports Medicine, Tendon Surgery, Torn Cartilage, Total Joint Replacement, Upper Extremity, Upper Extremity Surgery
Research Interests: Disorders of the shoulder, clinical outcomes, value analysis research
 
Photo of Dr. Robert Steven Sterling, M.D.

Sterling, Robert Steven, M.D.

Associate Professor of Orthopaedic Surgery
Director, Adult Hip and Knee Replacement Fellowship
Expertise, Disease and Conditions: Avascular Necrosis (AVN) of the Hip, Knee Arthritis, Orthopaedic Surgery, Orthopaedics, Revision Hip Surgery, Revision Knee Surgery, Total Hip Replacement, Total Joint Replacement, Total Knee Replacement
 
Photo of Dr. Miho Jean Tanaka, M.D.

Tanaka, Miho Jean, M.D.

Assistant Professor of Orthopaedic Surgery
Director, Women's Sports Medicine Program
Expertise, Disease and Conditions: ACL Reconstruction, Arthroscopic Rotator Cuff Repair, Arthroscopic Surgery, Baseball Injuries, Elbow Arthroscopy, Knee Injuries, Knee Joint Arthroscopy, Orthopaedic Surgery, Patellar Dislocations, Patellar Instability Stabilization, Shoulder Arthroscopy, Shoulder Dislocations, Shoulder Disorders, Shoulder Instability Stabilization Surgery, Sports Injuries, Sports Injuries to the Ankle, Sports Medicine
Research Interests: Patellofemoral instability, dynamic imaging, imaging technology, knee biomechanics, injuries in female athletes
 
Photo of Dr. Ranjit Abraham Varghese, M.B.B.S.

Varghese, Ranjit Abraham, M.B.B.S.

Assistant Professor of Orthopaedic Surgery
Medical Director, Arthrogryposis Clinic
Expertise, Disease and Conditions: Angular Deformity Legs, Arthrogryposis, Bone Fractures, Cerebral Palsy, Clubfeet, Congenital Foot Disorders, Foot Deformities, Hip Dysplasia, Neuromuscular Disease, Orthopaedic Surgery, Pediatric Foot Care, Perthes Disease
Research Interests: Outcomes evaluation, Hip disorders, Cerebral palsy
 
Photo of Dr. Bashir Ahmed Zikria, M.D.

Zikria, Bashir Ahmed, M.D.

Associate Professor of Orthopaedic Surgery
Director, Sports Medicine Arthroscopy Lab, Johns Hopkins Orthopaedics at Bayview
Team Physician: Varsity Football, Lacrosse, Wrestling Johns Hopkins University Athletics
Expertise, Disease and Conditions: ACL Reconstruction, Anterior Shoulder Instability, Arthroscopic Rotator Cuff Repair, Baseball Injuries, Elbow Arthroscopy, Joint Preservation, Knee Arthritis, Multi-Ligament Knee Injuries, Orthopaedic Surgery, Sports Medicine, Total Elbow Replacement
Research Interests: Sports medicine injuries, Pediatric sports, Knee injuries, Sports injuries