| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Entire patella | Is a | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Structure of border of patella | Is a | True | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Structure of third of patella | Is a | True | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Structure of base of patella | Is a | True | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Structure of articular facet of patella | Is a | True | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Plain X-ray of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture patella, transverse | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture patella, vertical | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture patella, comminuted (stellate) | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Excision of lesion of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Acute osteomyelitis of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Osteochondritis dissecans of the patella | Finding site | True | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Transfer of peroneal tendons | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Transfer of peroneus longus | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Transfer of peroneus tertius | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Open fracture of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Patellar maltracking | Finding site | True | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Excision of patella for graft | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Transfer of peroneus brevis | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Arthroscopic lateral patellar release | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Injury of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Finding of patella structure | Finding site | True | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Exploration of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Ankle clonus absent | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Ankle clonus present | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Ankle clonus sustained | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Ankle clonus unsustained | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Patellar clonus absent | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Patellar clonus present | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Patellar clonus sustained | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Patella clonus unsustained | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Reconstruction for recurrent dislocating patella with extensor realignment | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Comminuted fracture of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Absent patella | Finding site | True | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Patella excision | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Hemipatellectomy | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Partial excision of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Procedure on patella | Procedure site | True | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Patellapexy | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Arthroplasty of patella with prosthesis | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Sustained clonus | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Shaving of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic procedure on patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Nail-patella syndrome | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Reduction of closed patellar dislocation | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Sequestrectomy of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Removal of internal fixation device from patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Bone graft of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Juvenile osteochondrosis of secondary patellar center | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Patellar stabilization by tendon transfer | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Juvenile osteopathia patellae | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Chondromalacia of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Clonus | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Repair of recurrent dislocation of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Incision of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Ankle clonus | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Wedge osteotomy of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Patellar retinacula release | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Fracture of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Lateral retinacula release of knee | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Patellar clonus | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Osteotomy of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Internal fixation of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Complete patellectomy | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Debridement of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Osteoclasis of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Operation with graft for slipping patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Arthroplasty of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Congenital absence of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Repair of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Internal fixation of patella without fracture reduction | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Juvenile osteochondrosis of primary patellar center | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Bifid patella | Finding site | True | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Rudimentary patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of bone growth stimulator into patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Wrist clonus | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Suture of periosteum of patella | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Benign neoplasm of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Primary malignant neoplasm of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Metastatic malignant neoplasm to patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Neoplasm of uncertain behavior of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Infection of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Paget's disease-patella | Finding site | True | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Juvenile osteochondrosis of the secondary patellar center | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture patella, transverse | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture patella, comminuted (stellate) | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 8 | 
| Deformity of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Clonus absent | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier |  | 
| Primary open reduction of fracture of patella and fixation with tension band wiring | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of patella, NOS | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Primary open reduction of fracture of patella and fixation with tension band wiring | Procedure site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture patella, comminuted (stellate) | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 3 | 
| Patellar luxation | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture patella, vertical | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture patella, comminuted (stellate) | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture patella, proximal pole | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture patella, distal pole | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital dysplasia of patella | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 1 | 
| Scypho-patellar dysplasia | Finding site | False | Bone structure of patella | Inferred relationship | Existential restriction modifier | 2 |