Cass Regional Orthopedics is located inside the Rock Haven Medical Mall (2820 E. Rock Haven Rd., Suite 120, Harrisonville, Mo.). Kenneth W. Petersen, DO, sees patients in the clinic on Mondays and Wednesdays and performs surgeries at Cass Regional Medical Center on Tuesdays and Fridays. Dr. Petersen also sees patients at Pleasant Hill Medical Clinic on Thursdays from 8 a.m. to noon.

Conditions and Injuries Treated

Elbow - cubital tunnel syndrome, growth plate injuries, tennis elbow, tendonitis

Foot and ankle - Achilles tendon, ankle fractures, ankle sprains, foot fractures, tendonitis, stress fractures

Hip - femer fractures, greater trochanteric bursitis, hip dislocation, hip fractures, illiotribial band syndrome, minimally invassive hip replacement using anterior approach, hip resurfacing

Knee - ACL reconstruction, meniscus repair, Osgood-Schlatter disease, patellar fracture, patellar tendonitis, patellar tracking disorder, patellofemoral pain syndrome, tibial fractures, total knee replacement, unilateral knee replacement

Avascular necrosis

Cartilage repair

Joint dislocation

Joint replacement - hip, knee and shoulder

Shoulder - total shoulder replacement, reverse total shoulder replacement, labral repair, AC joint separation, clavicle fractures

Wrist and hand - Carpal tunnel syndrome, De Quervain's tenosynovitis, ganglion cyst, Dupuytren's contracture (Dupuytren's disease), hand fractures


For more information, or to make an appointment with Dr. Petersen, please call (816) 380-7662. Faxes may be sent to (816) 887-2192.

Click here to learn more about physical therapy options at Cass Regional Medical Center.


Monday 8 a.m. to 5 p.m.

Wednesday 8 a.m. to 5 p.m.

Thursday 8 a.m. to noon (Pleasant Hill Medical Clinic)