Aaron Althaus, M.D.

Dr. Althaus's Team | Theresa Swenson, Physician Assistant

Medical Education: University of Iowa Carver College of Medicine

Residency: University of Kansas Hospital

Fellowship: NYU - Hospital for Joint Diseases

Dr. Althaus is a fellowship-trained orthopedic surgeon who has returned to Sioux City to begin practice. He completed a fellowship with the Insall Scott Kelly Institute for Orthopaedics and Sports Medicine at the NYU Hospital for Joint Diseases in New York City where he learned state-of-the-art techniques for the management of injuries and arthritic conditions involving the hip, knee, and shoulder.  He has experience with all of the common approaches to the hip including the direct anterior, lateral, and posterior.  At ISK, he worked with some of the best knee surgeons in the country and was exposed to the philosophy and legacy of Dr. John Insall, who is regarded as the father of knee replacement surgery. During the fellowship, he received additional training in shoulder reconstruction, rotator cuff, and labral surgery as well as hip arthroscopy for the treatment of labral tears and hip impingement.

While in residency at the University of Kansas Hospital, Dr. Althaus was able to acquire a broad knowledge of the surgical and non-surgical management of many orthopedic conditions. This is demonstrated by his performance on standardized exams during training including scoring in the 99th percentile on the Orthopaedic In-Training Exam and the 96th percentile on the written portion of the orthopaedic board exam.

Dr. Althaus and his wife are both natives of Sioux City and are excited to be back.  

Had my left hip replacement surgery with Dr. Althaus and he did a wonderful job. I wouldn’t have anyone else. I had a very bad break and he did a wonderful job on it. I will tell you he is a wonderful surgeon! He listens to you, he answers your questions. His personality is kind. I feel at ease and very confident with him. I wouldn’t want any other surgeon but Doctor Aaron Althaus!!!

Anonymous Patient

Dr. Althaus is very professional during my appointments. I feel he really cares and really listens to me. He doesn't force or tell you what to do, instead, he gives you all the options and lets you decide what's right for you. It's such a relief having a doctor that really "listens" to me. I thank him sincerely for that.

Anonymous Patient