Anthony P. Fiegen, MD
/in General Orthopedic Surgery, Physician Team, Sports Medicine, Sports Medicine Physician /by Helen KluckSpecialties – 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
• 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
/in Fractures & Trauma Physician, General Orthopedic Surgery, Hip Physician, Knee Physician, Physician Team /by Christopher HolmanLuke H. Rasmussen, MD
Hip, Knee, General Orthopedic Surgery
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.
Get to know Dr. Rasmussen
Testimonials for Dr. Rasmussen
Timothy L. Walker, MD
/in Fractures & Trauma Physician, General Orthopedic Surgery, Hip Physician, Knee Physician, Physician Team, Sports Medicine Physician /by Christopher HolmanTimothy L. Walker, MD
Hip, Knee, and General Orthopedic Surgery
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.
Get to know Dr. Walker
Testimonials for Dr. Walker
I saw Dr. Alvine in Pipestone, MN. This has helped me miss less work. I have benefited from the PT also.
This was my first visit to the institute. The receptionist was very helpful and friendly. Dr Alvine and Mary, who I saw are exceptional.
I have been going to Dr. Alvine since 2009 or so... have always been treated well and have had my questions answered to my understanding! I have severe ankle and feet issues.... and have several surgeries with Dr. Alvine and it has improved my quality of life!! All staff from walking in the door to leaving have been polite and helpful!
Dr. Alvine and Mary have been taking care of me for the last 7 years since having a major back, ankle, and leg injury! I’ve had two additional surgeries in the last 4 years and can’t thank Dr. Alvine, Mary, and their staff enough for everything they have done. I highly recommend them to anyone with an orthopedic injury!
I have been so scared to get the surgery Dr. Alvine recommended and finally got it done Wednesday and I couldn't be happier! The pain I have from the surgery is less than when I was going to work everyday and trying to live a normal life! The staff and Dr. Alvine have been the most pleasant and comforting people I have ever met. Knowing that they care and are there to help has made this process so much smoother for me. And even hearing that I will need yet another surgery I can say I am not worried about it and know that I can trust everyone there. THANK YOU all at Core orthopedic
Dr. Alvine preformed an ankle fusion on my left ankle in 2016. It was a complete success. So glad he did it.
Michael J. Adler, MD
/in Fractures & Trauma Physician, General Orthopedic Surgery, Hip Physician, Joint Surgery, Knee Physician, Sports Medicine /by Christopher HolmanMichael J. Adler, MD
Knee, Hip, and Sports Medicine
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
Get to know Dr. Adler
Testimonials
Awesome place
Dr. Adler is a wonderful surgeon and very caring individual. He checked my knee and answered all the questions I had. I will see him again in 7 weeks.
Dr Adler and the whole support team at OI are the best. Can't say enough good things about all of them.
Dr Adler and his PA Scott are both very personable and take the time to explain everything clearly. The injection Scott gave was pain free which is important to me so he did a great job!
Everyone at OI is very courteous and friendly! I am very satisfied with how my surgery went and follow up care. Dr Adler and any staff that has helped me are outstanding! I saw a personal trainer yesterday and I was very pleased with that visit. I learned new exercises to do and he was very helpful and explained things very well.
Everything was great.
I have the highest regard for everyone I had contact with! I felt well informed when I left Dr. Adler’s office! He has a great PA, too! I know about my knee, and we have a game plan! Thanks to everyone!
I really appreciated how Dr. Adler listened to my concerns. I felt like he was actually listening to what I was saying. He didn’t seem to be in a hurry to just get on to the next patient. Very pleased with my visit!
My experience with Orthopedic Institute was a very good experience.
Outstanding service and even though it was a busy morning the staff did not indicate that they were overwhelmed at all. They are a true well oiled machine.
Received an email for the patient portal but not the temp password as stated in the email. Will call today to access the portal.
The hassle of recordings when calling, irritating and ridiculous. Personal and services very nice.
Dr. Adler appears to be very knowledgeable and did an excellent job on my hip. I would recommend him very highly for hip or knee replacement to others. He has a great personality!
I was referred to Dr. Adler by friends. He knew immediately what my problem was. I was very satisfied with the results of my surgery. Dr. Adler is very knowledgeable and I would recommend him to anyone. I love his personality and how he treated me. Very positive experience. Just a good guy...very attentive and concerned. Would recommend to anyone.
Dr. Adler’s staff at the Orthopedic Institute are all very pleasant, helpful and professional. Always greeted with a smile. I have never had to wait for one of my appointments. Dr. Adler will come in with a big smile and a friendly hand shake. He listens to your concerns and addresses them. Dr. Adler has down both of my total hip replacements and my right hand knee replacement. He will be doing me left knee when it comes time to do that. Very professional and has a great surgical team assisting him at the Orthopedic Hospital in Sioux Falls S.D.
Dr. Adler was highly recommended to me by trusted friends. He is a very professional and knowledgeable doctor with a positive, confident, and upbeat personality. The care I received at the SFSH during my hip replacement stay was the best I have ever experienced!
Excellent care from Dr. Adler and his staff and SFSH. Everyone was concerned about me and my knee and how I was doing. 5 days from surgery and, so far, I'm pleased. Dr. Adler is highly skilled, great personality and interested in the patient. Doesn't get better than that.
Matthew K. Wingate, MD
/in Fractures & Trauma Physician, General Orthopedic Surgery, Neck and Spine Physician /by Christopher HolmanMatthew K. Wingate, MD
Neck and Back
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!
Get to know Dr. Wingate
Testimonials
Awesome place
Dr. Adler is a wonderful surgeon and very caring individual. He checked my knee and answered all the questions I had. I will see him again in 7 weeks.
Dr Adler and the whole support team at OI are the best. Can't say enough good things about all of them.
Dr Adler and his PA Scott are both very personable and take the time to explain everything clearly. The injection Scott gave was pain free which is important to me so he did a great job!
Everyone at OI is very courteous and friendly! I am very satisfied with how my surgery went and follow up care. Dr Adler and any staff that has helped me are outstanding! I saw a personal trainer yesterday and I was very pleased with that visit. I learned new exercises to do and he was very helpful and explained things very well.
Everything was great.
I have the highest regard for everyone I had contact with! I felt well informed when I left Dr. Adler’s office! He has a great PA, too! I know about my knee, and we have a game plan! Thanks to everyone!
I really appreciated how Dr. Adler listened to my concerns. I felt like he was actually listening to what I was saying. He didn’t seem to be in a hurry to just get on to the next patient. Very pleased with my visit!
My experience with Orthopedic Institute was a very good experience.
Outstanding service and even though it was a busy morning the staff did not indicate that they were overwhelmed at all. They are a true well oiled machine.
Received an email for the patient portal but not the temp password as stated in the email. Will call today to access the portal.
The hassle of recordings when calling, irritating and ridiculous. Personal and services very nice.
Dr. Adler appears to be very knowledgeable and did an excellent job on my hip. I would recommend him very highly for hip or knee replacement to others. He has a great personality!
I was referred to Dr. Adler by friends. He knew immediately what my problem was. I was very satisfied with the results of my surgery. Dr. Adler is very knowledgeable and I would recommend him to anyone. I love his personality and how he treated me. Very positive experience. Just a good guy...very attentive and concerned. Would recommend to anyone.
Dr. Adler’s staff at the Orthopedic Institute are all very pleasant, helpful and professional. Always greeted with a smile. I have never had to wait for one of my appointments. Dr. Adler will come in with a big smile and a friendly hand shake. He listens to your concerns and addresses them. Dr. Adler has down both of my total hip replacements and my right hand knee replacement. He will be doing me left knee when it comes time to do that. Very professional and has a great surgical team assisting him at the Orthopedic Hospital in Sioux Falls S.D.
Dr. Adler was highly recommended to me by trusted friends. He is a very professional and knowledgeable doctor with a positive, confident, and upbeat personality. The care I received at the SFSH during my hip replacement stay was the best I have ever experienced!
Excellent care from Dr. Adler and his staff and SFSH. Everyone was concerned about me and my knee and how I was doing. 5 days from surgery and, so far, I'm pleased. Dr. Adler is highly skilled, great personality and interested in the patient. Doesn't get better than that.
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810 E 23rd St
Sioux Falls, SD 57105
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