Juan D Ayala, MD, PhD
Universidad Francisco de Vitoria, School of Medicine,
Medical Student Advisor for Orthopedics
Hospital San Rafael, Head of Knee and Sports Medicine Unit, President of SETRADE (Spanish Society for Sports Traumatology)
Madrid, Spain
Juan D Ayala, MD, PhD is a medical student advisor for orthopedic surgery of the School of Medicine (Universidad Francisco de Vitoria-UFV). He is also the President of the Spanish Society for Sports Traumatology (SETRADE). He obtained his school medicine grade at Complutense University in Madrid. After completion of his orthopedic residency at the ASEPEYO Orthopedic and Rehabilitation Hospital in Madrid (Spain), he was graded as Doctor in Medicine by the Universidad of Alcalá de Henares (“cum laude” grade). Doctoral Thesis: “Femoral and tibial tunnel study in ACL reconstruction. CT scan and clinical long-term results”.
His clinical interests are sports medicine and arthroscopy of the knee and shoulder. Special interests include ACL reconstruction, knee cartilage restoration, meniscal injuries, shoulder instability in athletes and biological treatment for sports injuries. His research interests are mainly focused on ACL reconstruction and several techniques for post-meniscectomy syndrome.
Dr. Ayala is accomplished in both clinical and laboratory research and has authored more than 40 scientific manuscripts and textbook chapters. He has received 10 national and international recognition and awards on lectures and publications within the field of sports medicine. Reviewer of Revista Avances, Revista Española de Cirugia Ortopedica y Traumatología, AJSM (American Journal of Sports Medicine) and The Knee.
He is an active member of AEA (Asociación Española de Artroscopia), EMTG (European Meniscal Transplantation Group), SECOT (Spanish Orthopedic Surgery Association), SETRADE (Spanish Society for Sports Traumatology), SLARD (Latin-American Society of arthroscopy, knee and sports traumatology) and ESSKA (European Society of Sports Traumatology, Knee and Arthroscopy).
Dr. Ayala is an avid paddle tennis player, skier, and piano student but enjoys most spending his days with his fiancé Cristina and his children Maria and Jaime.
Selected Published Work
Fernandez Jaen T, Ayala J. et al. Spanish consensus Clinical management and treatment in tendinopathies in sport. Orthop J Sports Med. Oct 2017.
Ayala-Mejias JD, Garcia-Gonzalez B, Alcocer-Perez-España L, Villafañe JH, Berjano Relationship between Widening and Position of the Tunnels and Clinical Results of Anterior Cruciate Ligament Reconstruction to Knee Osteoarthritis: 30 Patients at a Minimum Follow-Up of 10 Years. J Knee Surg. 2017;30(6):501-508
Co-editor 1ª Monografía SETRADE. “Lesiones crónicas del tobillo en el deporte”. Editorial Médica Panamericana (Madrid. España).
Ayala Mejías JD, Alvarez R, Pérez-España M, Alcocer L. A case report of semitendinosus tendon autograft for reconstruction of the meniscal wall supporting a collagen implant. BMC Sports Science, Medicine, and Rehabilitation 2013, 5:4.
Ayala Mejías JD, García Estrada GA, Rodríguez Hernández C, del Monte Bello G. Descripción de una técnica artroscópica y percutánea para la reparación de lesiones de esquina posterolateral de rodilla. Acta Ortopédica Mexicana 2011; 25(6): 396-402
Pérez-España Muniesa M, Merry del Val de la Campa B, Ayala Mejías Sutura meniscal: indicaciones, técnicas y resultados en el medio laboral. Cuadernos de artroscopia. 2009;16(38).
Ayala Mejías JD. Trasplante meniscal: indicaciones, técnica, resultados y complicaciones. Cuadernos Artroscopia. 2007;14( 2, nº 32):30-32.
Ayala Mejías JD, Abril Martín JC, Magán Bronchalo L, Epeldegui Torres Menisco discoideo. Valor pronóstico del grosor meniscal. Rev. Ortop Traumatol 2004;48:195-200.
Ayala Mejías JD, Ayala Andrade J, Harner CD, Fu Trasplante meniscal. Estado actual. Rev Ortop Traum. 2002; 46(6): 551-560.
Derik L. Davis, MD
Associate Professor
Department of Diagnostic Radiology & Nuclear Medicine
University of Maryland School of Medicine
Baltimore, MD
Derik L. Davis, MD is an Associate Professor at the University of Maryland School of Medicine. He is a board-certified, fellowship trained musculoskeletal radiologist. After receiving his A.B. from Dartmouth College and M.D. from the Geisel School of Medicine at Dartmouth, Dr. Davis served as a General Medical Officer in the United States Navy. Following his honorable discharge, he entered his residency in Diagnostic Radiology. Subsequently, he completed a fellowship in musculoskeletal imaging at Penn State Health Milton S. Hershey Medical Center.
Dr. Davis works on the Baltimore campus of the University of Maryland, home of the University of Maryland Medical Center and R Adams Cowley Shock Trauma Center. His clinical practice encompasses diagnostic imaging and image-guided procedures. His current research interests include musculoskeletal imaging, shoulder dysfunction and mobility limitations, with a special emphasis on older populations. In recent years, he has received grant funding from the National Institute on Aging and the Radiological Society of North America Research & Education Foundation.
Dr. Davis is on faculty for educational programs at his institution. He is Course Director of the Musculoskeletal Radiology Elective for medical students and serves as MRI Fellowship Director for post-graduate training of diagnostic radiologists. Dr. Davis is a reviewer for several journals and the American Roentgen Ray Society Scientific Program Subcommittee-Musculoskeletal Section. He is also a member of the American Board of Radiology Maintenance of Certification Advisory Committee for Diagnostic Radiology.
Selected Published Work
Herring A, Davis DL. Mimickers of Hill-Sachs Lesions. Can Assoc Radiol J. 2020;Feb 6 [epub ahead of print].
Davis DL, Zhuo J, Almardawi R, Mulligan ME, Resnik CS, Abdullah SB, Al Khalifah H, Henn RF 3rd, Gilotra MN, Hasan SA, Gullapalli RP. Association of Patient Self-Reported Shoulder Scores to Quantitative and Semi-Quantitative MRI Measures of Rotator Cuff Intramuscular Fatty Infiltration: A Pilot Study. AJR Am J Roentgenol.2019; 213:1307-1314.
Davis DL, Gilotra MN, Hovis JP, Almardawi R, Hasan SA. Association of Rotator Cuff Tear Patterns and Intramuscular Fatty Infiltration on Magnetic Resonance Imaging. J Clin Imaging Sci. 2019;9:38.
Davis DL, Kesler T, Gilotra MN, Almardawi R, Hasan SA, Gullapalli R, Zhuo J. Quantification of shoulder muscle intramuscular fatty infiltration on T1-weighted MR images: A viable alternative to the Goutallier classification system. Skeletal Radiol. 2019;48:535-541.
Valencia AP, Lai JK, Iyer SR, Mistretta K, Spangenburg EE, Davis DL, Lovering RM, Gilotra MN. Fatty Infiltration Is A Prognostic Marker of Muscle Function After Rotator Cuff Tear. Am J Sports Med. 2018;46(9):2161-2169.
Davis DL. Hook of the Hamate: The Spectrum of Often Missed Pathologic Findings. AJR Am J Roentgenol 2017. 209(5):1110-1118.
Davis DL, Mulligan ME, Moszkowicz A, Resnik CS. Clinical History Provided by Referring Clinicians and Patients for Musculoskeletal MRI. J Am Coll Radiol. 2017;14(9):1215-1218.
Davis DL, Faddoul D, Almardawi R. Practice Quality Improvement for Patient Positioning on Shoulder Magnetic Resonance Imaging to Reduce Potential Diagnostic Errors. J Am Coll Radiol. 2017;14(8):1058-1061.
Davis DL, Almardawi R, Mitchell JW. Analysis of the Tibial Epiphysis in the Skeletally Immature Knee Using Magnetic Resonance Imaging: An Update of Anatomic Parameters Pertinent to Physeal-Sparing Anterior Cruciate Ligament Reconstruction. Orthop J Sports Med. 2016;4(6):2325967116655313.
Ropp AM, Davis DL. Scapular Fractures: What Radiologists Need to Know. AJR Am J Roentgenol. 2015;205(3):491-501.
Gilotra M, Nguyen T, Christian M, Davis D, Henn RF, Hasan S. Botulinum toxin is detrimental to repair of a chronic rotator cuff tear in a rabbit model. J Orthop Res. 2015;33(8):1152-7.
Davis DL, Chen L, Young ST. Evaluation of epiphyses in the skeletally immature knee using magnetic resonance imaging: a pilot study to analyze parameters for anterior cruciate ligament reconstruction. Am J Sports Med. 2013;41(7):1579-85.
American Journal of Sports Medicine Editorial Board Spotlight 