| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Lumbar and lumbosacral fusion by lateral transverse process technique | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Arthrodesis of proximal tibiofibular joint | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Fusion of first metatarsophalangeal joint for hallux valgus repair | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Craniocervical spinal fusion for pseudoarthrosis | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Reduction of spondylolisthesis and fusion | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Intra-articular arthrodesis subtalar joint | Method | False | Fusion - action | Inferred relationship | Some | 4 | 
| Extra-articular arthrodesis subtalar joint | Method | False | Fusion - action | Inferred relationship | Some | 4 | 
| Pantalar arthrodesis of hindfoot | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of first tarsometatarsal joint | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of interphalangeal joint of lesser toe | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Primary intertransverse fusion of lumbar spine | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Conversion to fusion of joint | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Conversion to fusion of joint with articular bone graft | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Conversion to fusion of joint and internal fixation | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Conversion to fusion of joint and external fixation | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Fusion of joint with articular bone graft | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Fusion of joint with extraarticular bone graft | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Primary fusion of joint and external fixation | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Primary fusion of joint with articular bone graft | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Primary fusion of joint and internal fixation | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Primary fusion of joint and external fixation | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Intercarpal fusion for scapholunate advanced collapse | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Arthrodesis of interphalangeal joint of finger | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Lumbosacral arthrodesis | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Epiphysiodesis of distal femur and proximal and distal tibia and fibula | Method | False | Fusion - action | Inferred relationship | Some | 6 | 
| Epiphyseal arrest by epiphysiodesis of distal tibia and fibula | Method | False | Fusion - action | Inferred relationship | Some | 3 | 
| Epiphyseal arrest by epiphysiodesis of distal fibula | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Fusion of scaphotrapezial joint | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Radiocarpal fusion | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Arthrodesis of scapholunate joint | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Bost radiocarpal fusion | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Bone fusion | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Arthrodesis | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Excision of bone of mandible with arthrodesis | Method | True | Fusion - action | Inferred relationship | Some | 3 | 
| Primary fusion of joint and internal fixation | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Fusion of joint with extraarticular bone graft | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Primary fusion of joint with articular bone graft | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Conversion to fusion of joint with articular bone graft | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Fusion of joint with articular bone graft | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Conversion to fusion of joint and internal fixation | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Conversion to fusion of joint and external fixation | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Conversion to fusion of joint | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Modified Johanson operation for claw toe with arthrodesis | Method | True | Fusion - action | Inferred relationship | Some | 3 | 
| Fusion of joint with bone graft | Method | True | Fusion - action | Inferred relationship | Some | 3 | 
| Excision of bone of mandible with arthrodesis and reconstruction | Method | True | Fusion - action | Inferred relationship | Some | 4 | 
| Arthrodesis of joint of wrist region | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Primary arthrodesis of first metatarsophalangeal joint only | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of interphalangeal joint of great toe | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Primary arthrodesis interphalangeal joint of great toe | Method | True | Fusion - action | Inferred relationship | Some | 2 | 
| Posterior fusion of atlantoaxial joint | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Primary posterior fusion of lumbar spine | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Revision posterior fusion of lumbar spine | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Primary posterior fusion of joint of lumbar spine NEC | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Hammer toe correction | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis by anterior extraoral technique, clivus-C1-C2, with bone graft and excision of odontoid process | Method | False | Fusion - action | Inferred relationship | Some | 5 | 
| Bone fusion | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Fusion of atlantoaxial joint | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Tibiotalar arthrodesis | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Fusion of hallux valgus | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Simple arthrodesis | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Tarsometatarsal fusion | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Tarsometatarsal arthrodesis, single joint | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| McKeever arthrodesis | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Metatarsophalangeal fusion | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of metacarpophalangeal joint with internal fixation and autograft | Method | False | Fusion - action | Inferred relationship | Some | 4 | 
| Arthrodesis of metacarpophalangeal joint with internal fixation and autograft | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Lumbar and lumbosacral fusion by posterior technique | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Hoke operation for midtarsal fusion | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Midtarsal fusion | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Miller operation | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Triple arthrodesis of ankle | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Dunn operation | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Hoke operation | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Lambrinudi operation | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of interphalangeal joint of finger with internal fixation with autograft | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of interphalangeal joint of finger with internal fixation with autograft | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Tarsometatarsal arthrodesis, transverse | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Dorsolumbar fusion for pseudoarthrosis | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Tarsometatarsal arthrodesis, transverse, with osteotomy as for flatfoot correction | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Excision, fusion and repair of toes | Method | True | Fusion - action | Inferred relationship | Some | 4 | 
| Tarsometatarsal arthrodesis, multiple | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Cervical spinal fusion for pseudoarthrosis | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Pantalar arthrodesis | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of interphalangeal joint of toe | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis by anterior interbody technique of cervical region below C2 with bone graft | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of interphalangeal joint of finger with internal fixation | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of interphalangeal joint of finger with internal fixation | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Tendodesis of long head of biceps muscle | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Epiphysiodesis for slipped upper femoral epiphysis | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Epiphysiodesis for correction of angular deformity | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Cervical arthrodesis by anterior technique | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Midtarsal arthrodesis, multiple | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Spinal fusion without reduction of spinal deformity | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Spinal fusion for spondylolysis | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of ankle | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of carpometacarpal joint of thumb with internal fixation | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Midtarsal arthrodesis, navicular-cuneiform, with tendon lengthening and advancement | Method | True | Fusion - action | Inferred relationship | Some | 1 | 
| Midtarsal arthrodesis, transverse, with osteotomy as for flatfoot correction | Method | False | Fusion - action | Inferred relationship | Some | 2 | 
| Dorsal and dorsolumbar fusion by posterior technique | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Arthrodesis of metacarpophalangeal joint with autograft | Method | False | Fusion - action | Inferred relationship | Some | 1 | 
| Craniocervical spinal fusion | Method | False | Fusion - action | Inferred relationship | Some | 4 |