Which pathology is described by hind limb myoclonic spasms with overflexion and tail raising, and is associated with neuropathy or myopathy?

Which pathology is described by hind limb myoclonic spasms with overflexion and tail raising, and is associated with neuropathy or myopathy?

• A. Shivering
• B. Fibrotic myopathy
• C. Stringhalt
• D. Kinesiopathology

Answer: (A)

Shivering in horses is a neuromuscular disorder where hind limb muscles undergo involuntary, rhythmic contractions (myoclonic spasms). During episodes, the legs can jerk into overflexion and the tail may raise as part of the muscle activity. This pattern is commonly linked to underlying neuropathy or myopathy, which is why the description fits shivering so well. Fibrotic myopathy produces a fixed, contractured hind limb due to fibrosis after injury, not episodic spasms. Stringhalt involves sudden, exaggerated hind limb flexion with variable tail movement but is characterized more by abrupt lifting rather than rhythmic myoclonus. Kinesiopathology refers to abnormal movement patterns from chiropractic perspectives rather than a specific neuropathic or myopathic process.

Shivering in horses is a neuromuscular disorder where hind limb muscles undergo involuntary, rhythmic contractions (myoclonic spasms). During episodes, the legs can jerk into overflexion and the tail may raise as part of the muscle activity. This pattern is commonly linked to underlying neuropathy or myopathy, which is why the description fits shivering so well.

Fibrotic myopathy produces a fixed, contractured hind limb due to fibrosis after injury, not episodic spasms. Stringhalt involves sudden, exaggerated hind limb flexion with variable tail movement but is characterized more by abrupt lifting rather than rhythmic myoclonus. Kinesiopathology refers to abnormal movement patterns from chiropractic perspectives rather than a specific neuropathic or myopathic process.