Our orthopaedic experts make getting the specialty care you need comfortable and convenient. Our team of highly proficient orthopaedic surgeons, sports physicians, and other specialized physicians works one-on-one with patients to provide both surgical and non-surgical treatment options. As a team, we work to fully understand your condition and your goals for recovery before recommending a treatment and continue that level of personalized care until you can return to normal activities—and the life you enjoy.

Our advanced, specialized care – along with the area’s only fellowship-trained hip and knee reconstruction doctor – means you don’t need to travel far to address even significant, complex disabilities, injuries or surgical revisions. We’re always happy to provide second opinions on full joint replacements and address questions before they become problems.

Specialty Orthopaedic Care

The orthopaedic clinics offer comprehensive orthopedic services with on-site diagnostic x-ray and physical therapy for a wide range of needs, with dedicated physicians in each specialty.

Treatments and Procedures

Our orthopaedic surgeons, in conjunction with our neurosurgeon colleague, Dr. Arvind Ahuja, provide and offer minimally invasive outpatient surgeries through state-of-the-art surgical equipment and techniques. Over 93% of our total joint patients are discharged directly home after surgery, rather than being transferred to a rehab facility.

  • Disc replacement surgery
  • Dislocation stabilization
  • Hip and knee arthroplasty
  • Hip arthroscopy
  • Intraoperative spine surgery
  • Joint replacements through our dedicated Joint Replacement Program
  • Labral repair
  • Ligament reconstruction
  • Motion preservation surgery
  • Pediatric, adolescent, and adult sport injuries
  • Physical therapy
  • Primary and revision fracture care
  • Rotator cuff repair
  • Shoulder implants
  • X-ray

Our Doctors

As members of the community, themselves – even providing athletic training at local high schools – the Froedtert South Medical Group orthopaedic team is dedicated to making world-class orthopaedic care available to our neighbors here in southeastern Wisconsin and northern Illinois. Our goal is to see everyone through to a fast recovery. Understanding that healing takes time, we're here with you throughout your journey so you always know exactly where you are in the process.

Alan Gegenheimer, D.O.
Alan Gegenheimer, D.O. Orthopaedic Surgeon
Mohammad Al Sawaf, M.D.
Mohammad Al Sawaf, M.D. Orthopaedic Surgeon
Anthony Zacharias
Anthony Zacharias, M.D. Orthopaedic Surgeon- Sports Medicine


Map of Prairie Ridge Clinic
Prairie Ridge Clinic

9697 St. Catherine's Drive
Pleasant Prairie, WI 53158

Get Directions
Patient Story

He didn't tell me what to do. He was straight forward, no nonsense. He gave me my options and let me decide. I really appreciated that.

, Read patient story

Phone Numbers

  • Froedtert South Orthopaedic and Spine Clinic


    Froedtert South Orthopaedic and Spine Clinic

Orthopaedic Services

When you have an injury, we offer the care you need to let you focus on what’s most important – getting back to doing what you love. As physicians committed to community, we share in your relief and recovery, and work to help you feel more comfortable and confident throughout every step in your care.