| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Harrington rod, device | Is a | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Bone plate, device | Is a | True | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Bone wire, device | Is a | True | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Surgical metal nail, device | Is a | True | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Bone screw, device | Is a | True | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Bone staple, device | Is a | True | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Metal periosteal implant, device | Is a | True | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of fixation of mandible | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 2 | 
| Primary open reduction of fracture of bone and intramedullary fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and locked reamed intramedullary nail fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and internal fixation with K-wire | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and internal fixation with cerclage wiring | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and internal fixation with tension band wiring | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and internal fixation with screw(s) | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture of neck of femur and open fixation using dynamic hip screw | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Osteotomy of clavicle with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of radius with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fragment of bone and fixation using wire system | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and internal fixation with plate | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Arthrodesis of metacarpophalangeal joint with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction and fixation of fracture | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of femur without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Reduction of fracture of fibula with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of tarsals and metatarsals with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of foot with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Reduction of open fracture of leg with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of bone without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of bone of clavicle | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from humerus | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Arthroplasty of wrist, pseudoarthrosis type with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of bone of humerus | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of radius and ulna without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of bone of phalanges of hand | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Arthroscopy of wrist with internal fixation for instability | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from phalanges of hand | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of internal fixation device from patella | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Internal fixation of humerus without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from pelvis | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of internal fixation device from facial bone | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Open reduction of open humeral fracture with internal skeletal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of ulna with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of scapula | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device of thorax, ribs or sternum | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Arthrodesis of metacarpophalangeal joint with internal fixation and autograft | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from clavicle | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Reduction of fracture of ulna with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device of femur | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Open reduction of fracture of humerus with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from radius AND ulna | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 2 | 
| Repair of fracture with osteotomy and correction of alignment with internal fixation device | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of phalanges of hand with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of tibia with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from carpals and/or metacarpals | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Internal fixation of thorax, ribs or sternum without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Posterior spinal instrumentation with segmental fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of femur with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device of tibia | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Open reduction of fracture of phalanges of foot with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Reduction of fracture of leg with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device of radius | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Open reduction of fracture of hand with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Closed reduction of fracture of radius AND ulna with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of clavicle without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of carpals and metacarpals with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of closed humeral fracture with internal skeletal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Reduction of fracture of hand with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Open reduction of fracture of tibia and fibula with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of scapula without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from phalanges of foot | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Internal fixation of tarsals and metatarsals without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of carpals and metacarpals without fracture reduction | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Osteotomy of calcaneus with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of arm with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device of ulna | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of internal fixation device from scapula | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Internal fixation of bone of ulna | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Internal fixation of phalanges of foot | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Open reduction of fracture of fibula with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Osteotomy of humerus with internal fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device of fibula | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Intertrochanteric osteotomy with internal fixation and cast | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device of vertebra | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 2 | 
| Internal fixation of femur | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of internal fixation device from tarsals and metatarsals | Direct device | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier | 1 | 
| Subtrochanteric osteotomy with internal fixation and cast | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture of small bone and fixation using screw | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction and internal fixation of proximal femoral fracture with screw/nail device alone | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction and internal fixation of proximal femoral fracture with screw/nail and intramedullary device | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and locked unreamed intramedullary nail fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and unlocked reamed intramedullary nail fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and unlocked unreamed intramedullary nail fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture of bone and extramedullary fixation | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture of long bone and extramedullary fixation using suture | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture and internal fixation with multiple implant types | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Secondary open reduction of fracture of bone and intramedullary fixation however further qualified | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Secondary open reduction of fracture of bone and extramedullary fixation however further qualified | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Revision to open reduction of fracture and internal fixation with multiple implant types | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture of neck of femur and open fixation using Deyerle multiple hip pinning | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture of neck of femur and open fixation using Charnley compression screw | Using | False | Orthopedic internal fixation system, device | Inferred relationship | Existential restriction modifier |  |