Our Team

Ed Wojtys

Edward M. Wojtys, M.D.

  • William S. Smith Collegiate Professor of Orthopaedic Surgery, Sports Medicine
Edward M. Wojtys, M.D., is the William S. Smith Collegiate Professor in the University of Michigan’s Department of Orthopaedic Surgery and chief of sports medicine at U-M’s MedSport Program. He is a former U-M football player who completed his medical training and orthopaedic residency at the University of Michigan and fellowship at Cincinnati Sports Medicine under the direction of Dr. Frank Noyes in Knee Surgery and Sports Medicine. He joined the U-M faculty in 1985; his clinical and research work focuses on the mechanisms of knee injuries and their treatment. He currently serves as co-chair of the NFL Orthopaedic Research Committee, and recently received the 2016 Kappa Delta Award from the American Academy of Orthopaedic Surgeons (AAOS) and Orthopaedic Research Society (ORS)—the highest research award given by these societies.  His research has been funded by the NIH, NFL, Coulter Foundation, and the Center for Organogenesis. Michigan Medicine is proud to recognize and support Dr. Wojtys’ many contributions to Orthopaedic Surgery and Sports Medicine.


Department of Orthopaedic Surgery

Clinical Interests:

  • Knee Injuries: ligaments, menisci, articular cartilage
  • Prevention, rehabilitation, surgical repair and reconstruction

Research Interests:

  • Mechanisms of knee injury, especially the Anterior Cruciate Ligament (ACL)
  • Tissue engineering of ACL grafts

Education and Training:

  • Medical School: University of Michigan Medical School, Ann Arbor, MI
  • Residency: University of Michigan Health System, Surgery General, Ann Arbor, MI
  • Fellowship: Cincinnati Sports Medicine & Orthopaedic Center, Sports Medicine, Cincinnati, OH
  • Board Certification: Orthopaedic Surgery


  • 2017 Jack C Hughston Sports Physician Award, Sports Physical Therapy Section
  • 2016 Kappa Delta Award, American Academy of Orthopaedic Surgeons (AAOS)/Orthopaedic Research Society (ORS)
  • 2016 Traveling Godfather, European Society for Sports Traumatology, Knee Surgery and Arthroscopy-American Orthopaedic Society for Sports Medicine (ESSKA-AOSSM) DJO Travelling Fellowship
  • 2014, 2011 Cabaud Memorial Award, American Orthopaedic Society for Sports Medicine (AOSSM)
  • 2012, 2006, 1996, 1989 Excellence in Research Award, American Orthopaedic Society for Sports Medicine (AOSSM) for his work in ACL injuries in female athletes
  • 2001, 1992 O’Donoghue Sports Injury Research Award, American Orthopaedic Society for Sports Medicine (AOSSM)

Selected Publications:

Wojtys EM, Beaulieu ML, Ashton-Miller JA. New perspectives on ACL injury: On the role of repetitive sub-maximal knee loading in causing ACL fatigue failure. J Orthop Res 2016 Dec;34(12):2059–2068. Doi: 10.1002/jor.23441. Epub 2016 Oct 3. PMID: 27653237. *Kappa Delta Paper*

Bojicic KM, Beaulieu ML, Imaizumi Krieger DY, Ashton-Miller JA, Wojtys EM. Association between lateral posterior tibial slope, body mass index, and ACL injury risk. Orthop J Sports Med, 2017 Feb 13;5(2):2325967116688664, PMID: 28255568 PMCID: PMC5315236.

Crawford EA, Young LJ, Bedi A, Wojtys EM. The effects of delays in diagnosis and surgical reconstruction of ACL tears in skeletally immature individuals on subsequent meniscal and chondral injury. J Pediatr Orthop Jan 2017. PMID: 28234731 [Epub ahead of print.]

Beaulieu, ML, Carey, GE, Schlecht, SH, Wojtys, EM, & Ashton-Miller, JA (2016). On the heterogeneity of the femoral enthesis of the human ACL: microscopic anatomy and clinical implications. J Exp Orthop 3(1), 14.

Vandenberg C, Crawford EA, Sibilsky Enselman E, Robbins CB, Wojtys EM, Bedi A. Restricted Hip Rotation is Correlated with an Increased Risk for Anterior Cruciate Ligament Injury. Arthroscopy: The Journal of Arthroscopic and Related Surgery 2016 Nov 10. Pil: S0749-8063(16)30620-X. doi: 10.1016/j.arthro.2016.08.014. [Epub ahead of print] Ref.:  Mss. No. ARTH-16-123R2. PMID: 27840056.

Florida SE, VanDusen KW, Mahalingam VD, Schlientz AJ, Wojtys EM, Wellik DM, Larkin LM. In vivo structural and cellular remodeling of engineered bone-ligament-bone constructs used for anterior cruciate ligament reconstruction in sheep. Connect Tissue Res  2016 May 16:1–13. [Epub ahead of print]

Mahalingam V, Wojtys EM, Wellik DM, Arruda EM, Larkin LM. Fresh and Frozen Tissue-Engineered Three-Dimensional Bone-Ligament-Bone Constructs for Sheep Anterior Cruciate Ligament Repair Following a 2-Year Implantation. Biores Open Access 2016 Oct 1;5(1);289-298. eCollection 2016. PMID: 27843707. PMCID: PMC5107674 *8th most-downloaded paper in 2017*

Palmieri-Smith R, Potter H, Wojtys EM. Early cartilage changes following ACL injury: Evaluation with imaging and serum biomarkers: A pilot study. Arthroscopy: The Journal of Arthroscopic and Related Surgery 2016 Jul;32(7):1309–18. Doi: 10.1016/j.arthro.2015.12.045. Epub 2016 Mar 2

Thomas AC, Lepley LK, Wojtys EM, McLean SG, Palmieri-Smith RM. Effects of Neuromuscular Fatigue on Quadriceps Strength and Activation and Knee Biomechanics in Individuals Post-Anterior Cruciate Ligament Reconstruction and Healthy Adults. J Orthop Sports Phys Ther 2015 Dec;45(12):1042-50. doi: 10.2519/jospt.2015.5785. Epub 2015 Oct 15.

Beaulieu ML, Wojtys EM, Ashton-Miller JA. Risk of anterior cruciate ligament fatigue failure is increased by limited internal femoral rotation during in vitro repeated pivot landings. Am J Sports Med 2015, 43(9): 2233–41. NIHMSID: NIHMS729506.

Beaulieu ML Carey G, Schlecht S, Wojtys EM, Ashton-Miller JA. A Quantitative Comparison of the Microscopic Anatomy of the Human ACL Femoral and Tibial Entheses. J Orthop Res 2015 Jul;33(12):1811–1817. NIHMSID: NIHMS729521.

Lepley LK, Wojtys EM, Palmieri-Smith RM. Combination of eccentric exercise and neuromuscular electrical stimulation to improve biomechanical limb symmetry after anterior cruciate ligament reconstruction. Clin Biomech (Bristol, Avon). 2015 Aug;30(7):738–47. doi: 10.1016/j.clinbiomech.2015.04.011. Epub 2015 Apr 29.

Mahalingam VD, Behbahani-Nejad N, Horine SV, Olsen TJ, Smietana MJ, Wojtys EM,
Wellik DM, Arruda EM, Larkin LM. Allogeneic Versus Autologous Derived Cell
Sources for Use in Engineered Bone-Ligament-Bone Grafts in Sheep Anterior
Cruciate Ligament Repair. Tissue Eng Part A. 2015 Jan 8. Volume 21, Numbers 5 and 6, 2015 DOI: 10.1089/ten.tea.2014.0422 PubMed PMID: 25397361 PMCID: PMC4356260.

Mahalingam VD, Behbahani-Nejad N, Ronan EA, Olsen TJ, Smietana MJ, Wojtys EM, Wellik DM, Arruda EM, Larkin LM. Fresh Versus Frozen Engineered
Bone-Ligament-Bone Grafts for Sheep Anterior Cruciate Ligament Repair. Tissue Eng
Part C Methods. 2015 Jun;21(6):548–56. doi: 10.1089/ten.TEC.2014.0542. Epub 2014 Dec 29. PubMed PMID: 25397990; PMCID: PMC4442592.

Wojtys EM, Jannausch ML, Kreinbrink JL, Harlow SD, Sowers MR. Athletic Activity and Hormone Concentrations in High School Female Athletes. J Athl Train 2015 Feb;50(2):185–92. PMID: 25329345. doi: 10.4085/1062-6050-49.3.62.

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