Anthony P. Fiegen, MD
Specialties – Areas Of Focus
SHOULDER
• Surgical and non-surgical treatment
• Shoulder arthritis
• Anatomic total shoulder arthroplasty
• Reverse total shoulder arthroplasty
• Revision shoulder arthroplasty
• Rotator cuff repair
• Lower trapezius transfer
• Superior capsular reconstruction
• Biceps tenodesis
• Shoulder instability
• Labral repair and bony reconstruction
• AC joint pathology
• Shoulder replacement
KNEE
• Knee pain
• Surgical and non-surgical treatment
• Knee arthroscopy
• ACL repair
• ACL reconstruction
• Multi-ligament knee injuries: ACL/PCL/MCL/posterolateral corner
• Meniscus tears
• Meniscus repair
• Meniscus allograft transplant
• Patellar instability
• Medial patellofemoral ligament reconstruction
• Tibial tubercle osteotomy
• High tibial osteotomy
• Cartilage restoration
• Osteochondral allograft transplantation
• Cellular based cartilage restoration|
• Partial knee replacement
• Full knee replacement
• Total knee arthroplasty
• Robotic assisted knee replacement
HIP
• Hip pain
• Hip arthroscopy
• Femoroacetabular impingement (hip impingement)
• Hip labral repair
• Iliopsoas tendon impingement
• Anterior approach total hip arthroplasty
• Posterior approach total hip arthroplasty
• Robotic assisted total hip arthroplasty
• Hip replacement
SPORTS MEDICINE
GENERAL ORTHOPEDICS
ORTHOPEDIC TRAUMA AND FRACTURE CARE
About
Anthony P. Fiegen, MD is a fellowship-trained orthopedic sports medicine physician specialized in treating conditions of the shoulder, hip, and knee. In addition to a comprehensive sports medicine practice and joint preservation, he also performs joint replacement of the shoulder, hip, and knee.
Prior to joining Orthopedic Institute in 2024, Dr. Fiegen completed orthopedic surgery residency at Mayo Clinic in Rochester, MN. He then went on to complete a sports medicine fellowship at Wake Forest University in Winston-Salem, NC, where he served as a team physician for the ACC Wake Forest football, men’s basketball, and baseball teams. He served as a team physician for Winston-Salem State University football team and the Winston-Salem Dash, a minor league affiliate of the Chicago White Sox baseball organization. Dr. Fiegen is currently a reviewer for The American Journal of Sports Medicine (AJSM), and Current Reviews in Musculoskeletal Medicine.
Dr. Fiegen grew up in Madison, SD. He attended South Dakota State University competing for the Jackrabbits’ men’s basketball team from 2009-2013, winning the Summit League Tournament in his junior and senior seasons and advancing to the NCAA Tournament.
Dr. Fiegen is extremely excited to be returning to South Dakota with his wife and children to be close to family, friends, and to provide compassionate care to patients in the region with orthopedic problems.
Luke H. Rasmussen, MD
Specialties – Areas Of Focus
HIP
• Total Hip Replacement – Minimally Invasive
• SuperPATH™️ Hip Replacement
• Revision Total Hip Replacement
• Hip Impingement
KNEE
• Surgical & Non-Surgical Knee Treatments
• Total Knee Replacement – Minimally Invasive and Robotic Knee Replacement
• Revision Total Knee Replacement
• Partial (Unicompartmental) Knee Replacement
ORTHOPEDIC TRAUMA AND FRACTURE CARE
About
Dr. Rasmussen is a fellowship-trained orthopedic surgeon specializing in total hip and knee replacements. He grew up in Mitchell, South Dakota, and completed medical school at USD Sanford School of Medicine. After residency at the University of Florida Jacksonville and a resident researcher appointment at Mayo Clinic in Jacksonville, he completed the Hedley Adult Reconstruction fellowship in Phoenix, AZ, at Abrazo Orthopedic Specialists.
Soft tissue preservation is critical in achieving rapid recovery after total joint replacement. For this reason, Dr. Rasmussen employs less invasive techniques during joint replacement, including the SuperPATH® tissue-sparing surgical approach for total hip replacement, the subvastus quadriceps-sparing approach for total knee replacement, and robotic-assisted surgery. These techniques may enable the patient to leave the hospital earlier without requiring the typical post-operative hip restrictions. Additionally, Dr. Rasmussen enjoys complex revision joint replacement, general orthopedics, and orthopedic trauma.
During his free time, Dr. Rasmussen enjoys spending time with his family and being outdoors. He enjoys sharing his love of hiking, biking, golfing, and skiing with his wife and two sons. In addition, Dr. Rasmussen and his wife love exploring the local food scene, and he always appreciates a good restaurant recommendation.
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Testimonials for Dr. Rasmussen
Timothy L. Walker, MD
Specialties – Areas of Focus
KNEE
• Surgical and Non-Surgical Knee Treatments
• Total Knee Replacement – Minimally Invasive and Robotic Knee Replacement
• Advanced Knee Arthroscopy (Scope)
• Revision Total Knee Replacement
• Meniscus and Cartilage Repair
HIP
• Total Hip Replacement (Anterior Approach) – Minimally Invasive
• Revision Total Hip Replacement
SPORTS MEDICINE
GENERAL ORTHOPEDICS
ORTHOPEDIC TRAUMA AND FRACTURE CARE
About Dr. Walker
Since 2004, Dr. Timothy Walker has practiced orthopedics in Sioux Falls, specializing in total hip replacement, including anterior and standard approaches, total knee replacement, partial knee replacement, knee arthroscopy, and anterior approach total hip arthroplasty. In addition, he offers robotic-assisted total hip replacement and robotic-assisted partial knee replacement.
Born and raised in Indiana, Dr. Walker attended, and played football at Butler University, received a master’s degree from Purdue, and a doctorate from Indiana University. After medical school, Dr. Walker trained as a pediatric orthopedic research fellow at Indiana University and interned in general surgery at Indiana School of Medicine.
He performed his residency at Indiana University School of Medicine, is board-certified in orthopedics, and holds a subspecialty certificate in sports medicine.
When he is not working, Dr. Walker enjoys staying active by playing sports, running, hiking, weightlifting, and supporting his kids in their activities.
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Testimonials for Dr. Walker
Michael J. Adler, MD
Specialties – Areas of Focus
KNEE
• Surgical and Non-Surgical Knee Treatments
• Total Knee Replacement – Minimally Invasive and Robotic Knee Replacement
• Advanced Knee Arthroscopy (Scope)
• Revision Total Knee Replacement
• Meniscus and Cartilage Repair
HIP
• Total Hip Replacement (Anterior Approach) – Minimally Invasive
• Revision Total Hip Replacement
SPORTS MEDICINE
GENERAL ORTHOPEDICS
ORTHOPEDIC TRAUMA AND FRACTURE CARE
About
Michael J. Adler, MD provides general orthopedics, specializing in hip and knee replacement. He trained in joint replacement at the Mayo Clinic and then furthered his education in joint reconstruction at the Florida Orthopedic Institute with an entire year dedicated to minimally invasive hip and knee reconstruction.
He specializes in anterior hip replacement. The approach to the surgery does not cut muscle and therefore reduces healing time. He also specializes in minimally invasive knee replacement. New advances in technology have improved knee replacement to feel more natural with better biomechanics. Hip and knee replacements can wear out over time and need to be revised. He enjoys performing these complex and difficult cases. In addition, Dr. Adler performs sports medicine, including knee arthroscopy with ACL and ligament reconstruction.
Dr. Adler teaches and speaks on a national level about hip and knee reconstruction. This has allowed him to interact and learn from some of the greatest minds in orthopedics today as they share insights on new technology and techniques. He has also contributed to implant and instrument design.
The majority of Dr. Adler’s free time is spent with his family. He and his wife keep busy with their children’s school and athletic activities including basketball, soccer, baseball, softball, wakeboarding, skiing, and snowboarding. He takes every opportunity to coach when he can and loves spending time outdoors
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Testimonials
Matthew K. Wingate, MD
Specialties – Areas of Focus
NECK
• Surgical and Non-Surgical Treatment of the Neck
• Conservative Neck Care
• Cervical Disc Replacement
• Minimally Invasive Neck Surgery
• Degenerative Conditions of the Neck
• Complex Revision Surgery
• Pediatric Back Conditions
BACK
• Surgical and Non-Surgical Treatment of the Back
• Conservative Back Care
• Minimally Invasive Back Surgery
• Degenerative Conditions of the Back
• Scoliosis and Spine Deformity
• Complex Revision Surgery
• Pediatric Back Conditions
About
Matthew K. Wingate, MD specializes in orthopedic spine surgery. He completed his orthopedic surgery residency (five years) and then went on to complete an additional full year of only spine surgery. He is experienced in pediatric and adult spine surgery. Dr. Wingate specializes in neck and back pain, degenerative disc disease, neck and back arthritis, disc herniations of the neck and back, spinal slip (instability), neck and back fractures, pediatric and adult scoliosis. He received extensive training in the use of the cervical (neck) disc replacement.
Dr Wingate is our only surgeon to practice solely on the spine. This allows him and his team to continually focus on and master the art of treating complex spinal issues. Dr Wingate strives to continuously evaluate and review new technology and techniques to allow him to provide the most cutting edge care to his patients.
When Dr Wingate is not in clinic or the OR he and his wife are chasing their 3 kids around town and the region playing soccer, cheer, t-ball among other activities. He and his family love the outdoors and enjoy camping, fishing, hunting and hiking and spending time with their dog, Sunny. Dr Wingate also tries to sneak out for a round of golf whenever possible!
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Testimonials
