Steven A. Horton, M.D., M.S.

Steven A. Horton M.D., M.S. Physician


Steven Horton, M.D., M.S., is a board-certified Orthopaedic Surgeon with a focus on Hand and Upper Extremity Disorders at Mid-Maryland Musculoskeletal Institute (MMI) division in Frederick, Maryland. Advocating for conservative care, Dr. Horton prioritizes non-invasive approaches whenever possible. In cases where surgery is necessary, he employs minimally invasive techniques to facilitate smoother and quicker recoveries, enabling patients to return to work and activities sooner.

Dr. Horton has contributed significantly to orthopedic literature, with published articles addressing diverse topics such as the treatment of scaphoid nonunions in Hand and the identification of the safe zone in arthroscopic anterior elbow capsulectomy, featured in the Journal of Orthopedics and Orthopedic Surgery. His commitment to advancing knowledge is further demonstrated through research poster presentations at the international meeting for the American Society for Surgery of the Hand and podium research presentations at the American Academy of Orthopaedic Surgery annual meetings.

Additionally, Dr. Horton has collaborated on a chapter in the upcoming book The Mangled Extremity: Evaluation and Management, coauthoring with mentors from the prestigious Shock Trauma Center.

Areas Of Expertise

  • Carpal Tunnel Syndrome
  • Hand & Wrist Laceration Repairs of Nerve, Arteries and Tendons
  • De Quervain’s Syndrome
  • All Fractures in the Upper Extremity, Clavicle to Fingers
  • Dupuytren's Contracture, including Collagenase Injections
  • Arthritis Treatment of the Hand, Wrist and Elbow
  • Peripheral Nerve Surgery
  • Tendonitis of the Shoulder, Elbow and Wrist
  • Wrist and Shoulder Arthroscopy
  • Shoulder arthritis and Rotator Cuff Diagnosis and Treatment
  • Microvascular Surgery

Medical Degree

Case Western Reserve University, Doctor of Medicine- Cleveland, OH


University of Maryland Medical System- Department of Orthopaedics


Florida Orthopaedic Institute- Hand and Upper Extremity Fellowship


Board Certified - American Board of Orthopaedic Surgery 

Professional Associations

American Academy of Orthopaedic Surgeons

Major Accomplishments

American Academy of Orthopaedic Surgery publication on Identifying the Safe Zone in Arthroscopic Anterior Elbow Capsulectomy

American Society for Surgery on the Hand publication on Treatment of the Non-United Scaphoid: A Meta-Analysis of the Last 20 Years

Maryland Orthopaedic Association publication on Expert Survey Management of the Symptomatic Meso-Os Acromiale

Research posters at the international meeting for American Society for Surgery of the Hand

Presented podium research the American Academy of Orthopaedic Surgery annual meetings.

He has coauthored a chapter in the upcoming book The Mangled Extremity: Evaluation and Management with his mentors at the Shock Trauma Center.

Hospital Affiliations

Frederick Memorial Hospital

Affiliated Surgery Centers

Physicians Surgery Center

Frederick Surgical Center