20Shoulder Care
AC Joint Injuries
Biceps Tendon Injuries
Calcific Tendinitis
Clavicle Fractures
Frozen Shoulder
Labral and SLAP Tears
Rotator Cuff Injuries
Shoulder Dislocation/Instability
Subacromial Impingement/Busitis
A-C Joint Stabilization
Biceps Tenodesis
Clavicle Fracture Fixation
Pectoralis Major Repair
Rotator Cuff Repair
Shoulder Instability Surgery – Bankart Repair
Shoulder Instability Surgery – Latarjet Procedure
Subacromial Decompression and Acromioplasty
Superior Capsular Reconstruction
Total Shoulder Replacement
28Knee Care
ACL Tear
Cartilage Injury
Lateral Meniscus Tear
LCL Injury
MCL Injury
Medial Meniscus Tear
Patellar Instability
Patellofemoral Chondromalacia
Posterolateral Corner Injury
Trochlear Dysplasia
Anterior Cruciate Ligament (ACL) Reconstruction
Cartilage Restoration Surgery – Autologous Chondrocyte Implantation (ACI-Carticel)
Cartilage Restoration Surgery – Donor Graft
Collagen Meniscal Implant (CMI)
Lateral Collateral Ligament (LCL) Reconstruction
Medial Collateral Ligament (MCL) Reconstruction
Meniscus Repair
Meniscus Root Repair
Meniscal Transplant
Osteochondral Allograft Transfer
Osteochondral Autograft Transfer (OATS)
Partial Meniscectomy
Posterior Cruciate Ligament (PCL) Reconstruction
Posterolateral Corner (PLC) Surgery
Tibial Tubercle Osteotomy
17Hip Care
Cartilage Injury
Femoroacetabular Impingement (FAI)
Gluteal Tears
Hamstring Tears
Hip Instability
Labral Tears
Psoas Impingement (Internal Snapping Hip)
Trochanteric Bursitis
Gluteal Repair
Labral Debridement
Labral Repair
Labral Reconstruction
Trochanteric Bursa Debridement
Bone Marrow Aspirate Stem Cell Concentrate (BMC)
Platelet-Rich Plasma “PRP”


Femoro-acetabular impingement (FAI) is a condition caused by misshapen bone(s) in the hip in which abnormal contact between the bones may damage the labrum (rim of fibrocartilage surrounding the cup/acetabulum) and the articular cartilage that lines the bones. CAM impingement is a type of impingement that occurs as a result of a misshapen femoral head. Instead of being round, the femoral head has a “bump” on one side, which leads to abnormal contact between the ball (femoral head) and the socket (acetabulum) with hip motion.

Patients with impingement who fail non-surgical management may require surgery. If surgery is necessary, Dr. Keller usually recommends an arthroscopic approach to the hip using two or three small incisions. During surgery, Dr. Keller introduces a camera into the hip through one incision and surgical instruments though the other incisions.

Dr. Keller then performs femoroplasty for patients who have CAM impingement. During surgery, Dr. Keller uses an instrument to shave away the abnormal “bump” at the base of the femoral head. During the procedure, Dr. Keller uses x-rays for guidance as he re-contours the shape of the femoral head. By restoring the normal shape at the base of the femoral head, Dr. Keller may eliminate the painful symptoms related to impingement.

Postoperative Plan

Following surgery, Dr. Keller recommends a guided physical therapy program with a licensed physical therapist. Early motion following surgery is very important, and Dr. Keller recommends that each patient either use a stationary bike or a continuous passive motion machine daily. Dr. Keller also recommends limited weight bearing and crutch use for 4-6 weeks after surgery. Dr. Keller may also recommend the use of a brace for approximately two weeks to help protect the hip.

Following surgery, Dr. Keller prescribes appropriate pain medication as well as an anti-inflammatory medication. Anti-inflammatory medication (such as Naprosyn) is important because it can help eliminate pain and also may prevent the formation of abnormal bone (heterotopic ossification).