Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine : 605-336-2638
Patient Info

Knee

Knee Anatomy :: Knee Arthroscopy
ACL Reconstruction :: Cartilage Repair
Meniscus Repair :: Total Knee Replacement
Uniknee Replacement :: Revision Knee Replacement

Normal Anatomy of the Knee Joint

How does the Knee joint work?
Find out more in this web based movie.

Normal Anatomy of the Knee Joint


Knee Anatomy

Knee Ligament Anatomy Animation


Anterior Cruciate Ligament ACL Reconstruction

The anterior cruciate ligament is one of the major stabilizing ligaments in the knee. It is a strong rope like structure located in the centre of the knee running from the femur to the tibia. When this ligament tears unfortunately it doesn't heal and often leads to the feeling of instability in the knee.

ACL reconstruction is a commonly performed surgical procedure and with recent advances in arthroscopic surgery can now be performed with minimal incisions and low complication rates.

ACL Reconstruction Hamstring Tendon

ACL Reconstruction Hamstring Tendon ACL Reconstruction Hamstring Tendon ACL Reconstruction Hamstring Tendon

ACL Reconstruction Patellar Tendon

ACL Reconstruction Patellar Tendon ACL Reconstruction Patellar Tendon
ACL Reconstruction Patellar Tendon

Click here to learn more about Dr. Peterson’s ACL repair technique


Cartilage Repair

Cartilage repair is a surgical grafting procedure that replaces damaged cartilage with healthy cartilage from a non‐weight bearing joint. Cartilage repair is performed to correct joint deformities and restore the weight‐bearing capability of the affected joint.

Find out more about Cartilage Repair from the following link.

Cartilage Repair    

Meniscus Repair

Meniscus tear is the commonest knee injury in athletes, especially those involved in contact sports. A sudden bend or twist in your knees causes meniscal tear. This is a traumatic meniscus tear. Elderly people are more prone to degenerative meniscal tears as the cartilage wears out and weakens with age. The two wedge-shape cartilage pieces present between the thighbone and the shinbone are called meniscus. They stabilize the knee joint and act as "shock absorbers".

Find out more about Meniscus Repair from the following link.

Meniscus Repair    

Arthroscopy of the Knee Joint

Dr. Peterson is an expert in knee arthroscopy having received training from world-renowned knee surgeons at the Mayo Clinic. After he left Mayo, he completed a fellowship in Phoenix, Arizona dedicated to arthroscopy of the shoulder and knee. While there he developed expertise in treating knee conditions in a minimally-invasive, arthroscopic fashion. He has performed numerous ACL reconstructions arthroscopically and uses the most advanced techniques. Dr. Peterson is an expert in arthroscopic treatment of ACL tears, PCL tears, MCL&LCL injuries, cartilage restoration, microfracture, OATS, and meniscus repair. He is also the only surgeon in the region to perform an arthroscopic procedure for knee cap arthritis called the arthroscopic lateral facetectomy which can be an alternative to joint replacement for select patients.

Find out more about Knee Arthroscopy from the following links.

Arthroscopy of the Knee Joint
Arthroscopy of the Knee Joint
Arthroscopy of the Knee Joint


Total Knee Replacement (TKR)

Dr. Peterson's training at the Mayo Clinic included extensive experience in knee replacement. He uses minimally invasive techniques during partial and total knee replacement that utilize smaller incisions and spare the quadriceps muscle which is the main thigh muscle responsible for walking. This approach is called the quad-sparing subvastus approach. The main advantage is less postoperative pain, quicker recovery, and less time that you will need to use crutches/canes. Most patients are candidates for this approach. Dr. Peterson also uses the latest technology and state-of-the-art implants to maximize your function and increase lifespan of the prosthesis. Dr. Peterson's knee replacement procedures include Total knee replacement, Uni knee replacement, Patellofemoral replacement, and Revision knee replacement.

Find out more about Total Knee Replacement with the following links.

Total Knee Replacement (TKR) Total Knee Replacement (TKR) Total Knee Replacement (TKR)

Uni Condylar Knee Replacement

This simply means that only a part of the knee joint is replaced through a smaller incision than would normally be used for a total knee replacement. The knee joint is made up of 3 compartments, the patellofemoral and medial and lateral compartments between the femur and tibia (i.e. the long bones of the leg). Often only one of these compartments wears out, usually the medial one. If you have symptoms and X-ray findings suggestive of this then you may be suitable for this procedure.

Find out more about Unicondylar Knee Replacement with the following links.

Uni Condylar Knee Replacement
Uni Condylar Knee Replacement
Uni Condylar Knee Replacement

Stryker


Revision Knee Replacement

This means that part or all of your previous knee replacement needs to be revised. This operation varies from very minor adjustments to massive operations replacing significant amounts of bone and hence is difficult to describe in full.

Find out more about Revision Knee Replacement with the following links.

Revision Knee Replacement
Revision Knee Replacement
Revision Knee Replacement

Please use the links below to get more information from the American Academy of Orthopaedic Surgeons:

Broken Bones and Injury

Common Knee Injuries
Hamstring Muscle Strain
Muscle Strains in the Thigh

Fractures

Femur (Thighbone) Fractures in Adults
Femur (Thighbone) Fractures in Children Growth Plate Fractures Proximal Tibia Fractures
Shinbone (Tibia) Fractures
Stress Fractures

Tears and Instability

Kneecap, Unstable
Ligament Injuries of the Knee
Meniscus, Tears of
Posterior Cruciate Ligament, Tears of

Pain Syndromes

Osgood-Schlatter Disease (Knee Pain)
Runner's Knee (Patellofemoral Pain)
Shin Splints

Diseases and Syndromes

Bowed Legs
Bursitis of the Knee: Goosefoot (Pes Anserine)
Bursitis of the Knee: Kneecap (Prepatellar)
Limb Length Discrepency
Osteonecrosis of the Knee

Arthritis

Arthritis of the Knee
Osteoarthritis of Knee -- Social Impact
Osteoarthritis of the Knee - Frequently Asked Questions

Pain Syndromes

Burning Thigh Pain (Meralgia paresthetica)
Compartment Syndrome
Knee Pain, Adolescent Anterior
Osgood-Schlatter Disease (Knee Pain)
Runner's Knee (Patellofemoral Pain)

Treatment and Rehabilitation

Osteoarthritis: Surgical Treatment

Joint Replacement

Anesthesia for Hip and Knee Replacement Surgery
Knee Replacement and Implants
Knee Replacement, Cemented and Cementless
Knee Replacement, Minimally Invasive
Knee Replacement, Osteotomy and Unicompartmental Replacement (Arthroplasty)
Total Knee Replacement

Nonsurgical Treatment

Care of Casts and Splints
How to use Crutches, Canes, and Walkers
Viscosupplementation in Osteoarthritis of the Knee

Arthroscopy and Reconstruction

Anterior Cruciate Ligament Injury, Surgical Considerations in
Knee Arthroscopy
Meniscal Transplants

Considerations

Deep Vein Thrombosis

Postoperative Care

Knee Arthroscopy, Exercise Guide
Knee Replacement - Exercise Guide
Knee Replacement, Activities After

Meet Dr.Peterson
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Shoulder Arthroscopy - Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
Knee Arthroscopy - Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
Hip Arthroscopy - Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
Arthroscopic RC Repair - Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
Minimally Invasive Joint Replacement - Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
Cartilage Restoration/Osteotomy - Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
Patella (Kneecap) Dislocation - Erik D.Peterson, MD - Orthopedic Surgery & Sports Medicine
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ABOS - The American Board of Orthopaedic Surgery AAOS - American Academy of Orthopaedic Surgeons AANA - Arthroscopy Association of North America Stop Sports Injuries Mayo Clinic
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