Spinal neuroarthropathy

• SNA occurs specifically at locations of neurologic damage and retained motion

flowchart TB
 subgraph NV["*Neurovascular"]
        LAR["Loss of Autonomic Regulation"]
        H_IC["Hyperemia<br><br>Inflammatory Cytokines"]
        OA["Osteoclast Activity"]
        OL["Osteolysis"]
  end
 subgraph NT["*Neurotraumatic"]
        LP["Loss of Pain"]
        LOP["Loss of Proprioception"]
        RM["Repeated MicroTrauma"]
        SL["Stretching of Ligaments"]
  end
    NI{"NEUROLOGIC INJURY"} -.-> LAR
    NI --> LP & LOP
    LAR --> H_IC
    H_IC --> OA
    OA --> OL
    OL -. SNA .-> PD["Progressive destruction,<br>malalignment,<br>paraspinal bony<br>masses &amp; fluid<br>collections"]
    LP --> RM
    LOP --> SL
    RM -.-> SL
    SL -.-> RM
    RM --> PD
    SL --> PD
    HA["Healing Attempts"] --> OCF["Osteophyte & callus formation"]
    OCF -.-> PD

    style NI fill:#d92323,stroke:#fff,stroke-width:1px,color:#fff
    style PD fill:#ffd11a,stroke:#ccc,stroke-width:1px,color:#000
    style HA fill:#FF6D00,stroke:#fff,stroke-width:1px,color:#fff
    style OCF fill:#FF6D00,stroke:#fff,stroke-width:1px,color:#fff
    style NV fill:#2962FF,stroke:#333,stroke-width:2px,color:#fff
    style NT fill:#2962FF,stroke:#333,stroke-width:2px,color:#fff