Which model relates to structures deprived of normal nerve supply showing increased sensitivity?

The Spinal Segmental Sensitization Model is relevant in conditions where structures experience a loss of normal nerve supply, leading to heightened sensitivity. This model proposes that when spinal segments lose appropriate afferent input, their sensitivity can increase as a response to the deprivation. This sensitization occurs as the central nervous system adjusts to the altered sensory input due to injury, disease, or other factors affecting nerve function.

This increased sensitivity can manifest as allodynia (pain from stimuli that do not normally provoke pain) or hyperalgesia (an exaggerated response to painful stimuli). Understanding this model is critical for practitioners as it provides a framework for addressing pain and dysfunction stemming from compromised neural pathways, further informing treatment strategies like dry needling.

In contrast, other models such as the Trigger Point Model and the Myofascial Pain Model focus on specific points within the muscle tissue that cause localized pain and referral patterns but do not specifically address nerve supply dynamics. The Radiculopathy Model, while dealing with nerve root issues, emphasizes dysfunction arising from nerve compression or irritation, rather than the broader concept of segmental sensitization following nerve supply deprivation.