| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Abdominoperineal resection of rectum | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Miles operation, complete proctectomy | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 2 | 
| Salvage abdominoperineal resection of rectum | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Sauer-Bacon operation, abdominoperineal resection | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Proctectomy by abdominoperineal resection with colostomy, two stages | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Lloyd-Davies operation, abdominoperineal resection | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Proctectomy by abdominoperineal resection with colostomy, one stage | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Laparoscopic-assisted abdominoperineal resection | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier |  | 
| Rankin operation, complete proctectomy | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 2 | 
| Abdominoperineal resection of anus | Approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Rankin operation, complete proctectomy | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 2 | 
| Lloyd-Davies operation, abdominoperineal resection | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Salvage abdominoperineal resection of rectum | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Abdominoperineal resection of rectum | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Proctectomy by abdominoperineal resection with colostomy, one stage | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Abdominoperineal resection of anus | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Proctectomy by abdominoperineal resection with colostomy, two stages | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Miles operation, complete proctectomy | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 2 | 
| Sauer-Bacon operation, abdominoperineal resection | Surgical approach | False | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Lloyd-Davies operation, abdominoperineal resection | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Salvage abdominoperineal resection of rectum | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Abdominoperineal resection of rectum | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Proctectomy by abdominoperineal resection with colostomy, two stages | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Abdominoperineal resection of anus | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Sauer-Bacon operation, abdominoperineal resection | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Proctectomy by abdominoperineal resection with colostomy, one stage | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 | 
| Miles operation, complete proctectomy | Surgical approach | True | Abdominoperineal approach | Inferred relationship | Existential restriction modifier | 1 |