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Scar Dancing Syndrome: Peripheral Trauma Induced Involuntary Hyperkinesia around Surgical Incision
Xiaodong Yang1, Hongxia Li1, Mark Hallett2
1Department of Neurology & Institute of Neurology Ruijin Hospital, Affiliated with Shanghai Jiaotong University School of Medicine Shanghai China.
Background:
Peripherally induced movement disorders represent a rare and debated complication of peripheral trauma. It is difficult to determine a causal relationship between peripheral injuries and subsequent movement disorders.
Cases:
Here, we introduce and characterize four patients with post-surgical scar-associated movement disorders, a peripherally-induced rippling movement disorder confined to the muscles just under a long surgical incision scar, appearing weeks to months after surgery. This novel 'scar dancing' syndrome does not spread to adjacent muscles and persists during sleep.
Conclusion:
Scar dancing syndrome expands the phenotypic spectrum of peripherally induced movement disorders, in which movement disorder is confined to a long surgical incision site.
Insights
A new movement disorder, "scar dancing" syndrome, has been identified. This condition causes rippling muscle movements under surgical scars and expands the understanding of peripherally induced movement disorders.
Area of Science:
- Neurology
- Movement Disorders
- Surgical Complications
Background:
- Peripherally induced movement disorders are rare and their causal link to peripheral trauma is debated.
- Establishing a direct relationship between peripheral injuries and subsequent movement disorders is challenging.
Observation:
- Four patients presented with post-surgical scar-associated movement disorders.
- This novel condition, termed 'scar dancing' syndrome, involves rippling movements confined to muscles beneath a long surgical scar.
- The syndrome appears weeks to months after surgery, persists during sleep, and does not spread to adjacent muscles.
Findings:
- 'Scar dancing' syndrome is characterized by localized, rippling myoclonus.
- The disorder is directly associated with the presence of a surgical scar.
- Onset is delayed, occurring weeks to months post-surgery.
Implications:
- 'Scar dancing' syndrome expands the known spectrum of peripherally induced movement disorders.
- This condition highlights a novel link between surgical scars and neurological complications.
- Further research is needed to understand the pathophysiology and treatment of scar-associated movement disorders.
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