| Abbreviation | Definition |
|---|---|
| AAM | Alpha Angle Measurment |
| AAOE | American Alliance of Orthopaedic Executives |
| AAOE | American Association of Orthopaedic Executives |
| ABIOS | Acquired Brain Injury Outreach Services |
| ACDF | Anterior Cervical Discectomy and Fusion |
| AKA | above-knee amputation |
| ANOC | Advanced Neuroscience and Orthopaedic Clinic |
| ANOC | Neuroscience and Orthopaedic Centre |
| AOA | American Orthopaedic Association |
| AOFAS | American Orthopaedic Foot and Ankle Society |
| AOFAS | American Orthopaedic Foot Ankle Society |
| AOTC | Association of Orthopaedic Technologists California |
| AOTS | Adelaide Orthopaedic and Trauma Specialists |
| AOTS | Adelaide Orthopaedic Trauma Specialists |
| APOA | Asia Pacific Orthopaedic Association |
| APOA | Asia Pacific Orthopaedic Associations |
| APPOS | Asia Pacific Paediatric Orthopaedic Society |
| ARCOS | Association of Residency Coordinators in Orthopaedic |
| ARCOS | Association of Residency Coordinators in Orthopaedic Surgery |
| AREK | Autonomous Retina Entry Killer |