| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Fracture of posterior malleolus | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Trimalleolar fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Closed trimalleolar fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open trimalleolar fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Closed fracture ankle, trimalleolar, low fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Closed fracture ankle, trimalleolar, low fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Closed fracture ankle, trimalleolar, high fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Closed fracture ankle, trimalleolar, high fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open fracture ankle, trimalleolar, low fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Open fracture ankle, trimalleolar, low fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Open fracture ankle, trimalleolar, high fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Open fracture ankle, trimalleolar, high fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Fracture of posterior malleolus | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Closed trimalleolar fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 4 | 
| Open reduction of trimalleolar fracture of ankle with internal fixation (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open fracture ankle, trimalleolar, high fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Open fracture ankle, trimalleolar, low fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Reduction of closed trimalleolar ankle fracture with manipulation | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open trimalleolar fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Closed fracture ankle, trimalleolar, high fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open reduction of trimalleolar fracture of ankle with internal fixation (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 4 | 
| Closed fracture ankle, trimalleolar, low fibular fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open reduction with internal fixation of trimalleolar fracture of ankle and fixation of posterior lip of tibia (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open reduction with internal fixation of trimalleolar fracture of ankle and fixation of posterior lip of tibia (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 4 | 
| Closed reduction of fracture of posterior malleolus (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Trimalleolar fracture | Finding site | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Open reduction of fracture of posterior malleolus with internal fixation (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Open reduction of fracture of posterior malleolus with internal fixation (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 2 | 
| Closed manual reduction of fracture of posterior malleolus (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Closed reduction of fracture of posterior malleolus (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 | 
| Closed manual reduction of fracture of posterior malleolus (procedure) | Procedure site - Direct (attribute) | False | Posterior malleolus | Inferred relationship | Some | 1 |