| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Closed traumatic dislocation, metacarpophalangeal joint | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Open traumatic dislocation metacarpophalangeal joint | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Traumatic dislocation of metacarpophalangeal joint of thumb | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Traumatic dislocation of metacarpophalangeal joint of finger | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Traumatic rupture of ligament of metacarpophalangeal joint of finger | Is a | False | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Traumatic amputation, thumb, through metacarpophalangeal joint | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Traumatic amputation, finger, through metacarpophalangeal joint | Is a | False | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Open division, finger, metacarpophalangeal joint, radial collateral ligament | Is a | False | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Open division, finger, metacarpophalangeal joint, ulnar collateral ligament | Is a | False | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Open division, thumb, metacarpophalangeal joint, radial collateral ligament | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Open division, thumb, metacarpophalangeal joint, ulnar collateral ligament | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Sprain of metacarpophalangeal joint | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Knuckle injury | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Volar plate injury, thumb, metacarpophalangeal joint | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  | 
| Traumatic rupture of collateral ligament of joint of thumb | Is a | True | Traumatic arthropathy of metacarpophalangeal joint | Inferred relationship | Existential restriction modifier |  |