David Hennessy, MD

  • Orthopedic Surgery
David Hennessy, MD


David Hennessy, MD, is a UW Health orthopedic surgeon. He is also an assistant professor in the Department of Orthopedics and Rehabilitation at the University of Wisconsin School of Medicine and Public Health.

Dr. Hennessy is dual fellowship trained and specializes in total joint replacement of the hip and knees and the surgical management of musculoskeletal tumors.

His care of musculoskeletal tumors includes both benign and malignant tumors, particularly the management of extremity and pelvic sarcomas. He cares for both adult and pediatric patients who have bone or soft tissue tumors through a multi-disciplinary approach working with a team of medical oncologists and radiation oncologists.

He predominantly performs anterior-approach total hip replacements, but tailors his approach based on each patient’s needs .

In addition to total hip and knee replacements he performs robotic-assisted partial knee replacements, complex joint reconstructions and revision hip and knee replacements. His surgical technique focuses on minimally invasive approaches that limit tissue injury and enhance the speed of recovery. This surgical philosophy is complimented by the excellent team of physical therapists and supportive staff which help patients return to maximum function as soon as possible.

In his free time, Dr. Hennessy enjoys traveling with his family and spending time outdoors. They especially enjoy skiing, cycling and spending time on the lakes.

It’s rewarding to see patients walk back into the clinic without pain after joint surgery or to help people through tough times after a cancer diagnosis.

Languages spoken
  • English

Education & credentials

Board certifications
  • Orthopedic Surgery
Medical School
  • University of Iowa Carver College of Medicine, Iowa City, IA

Adult Reconstructive Surgery and Orthopedic Oncology, Massachusetts General Hospital, Boston, MA

  • University of Wisconsin Hospitals and Clinics, Madison, WI


Additional conditions and treatments
  • Anterior and Posterior Total Hip Replacement
  • Joint Replacement Revision Surgery
  • Management of Benign and Malignant Musculoskeletal Tumors
  • Management of Metastatic Cancer Involving the Skeleton
  • Minimally Invasive Surgery
  • Orthopedic Joint Reconstruction and Replacement
  • Orthopedic Oncology
  • Partial Knee Replacement
  • Robotic Hip and Knee Replacement
  • Surgical Management of Extremity and Pelvic Sarcomas
  • Total Knee Replacement