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A congenital, musculoskeletal condition characterized by the fusion of at least two vertebrae of the neck. Common symptoms include a short neck, low hairline at the back of the head, and restricted mobility of the upper spine. This syndrome can cause chronic headaches as well as pain in both the neck and the back.Other features may involve various other body parts or systems. Sometimes, KFS occurs as a feature of another disorder or syndrome, such as Wildervanck syndrome or hemifacial microsomia. In these cases, people have the features of both KFS and the additional disorder. KFS may be caused by mutations in the GDF6 or GDF3 gene and inherited in an autosomal dominant manner; or, it may be caused by mutations in the MEOX1 gene and inherited in an autosomal recessive manner. Treatment is symptomatic and may include medications, surgery, and/or physical therapy.
Biomarker and diagnostic research for Klippel-Feil syndrome has been reported in the published literature.
Estimated prevalence: 1-9 in 100,000 (Uncommon).
2 clinical trials registered, 1 recruiting. Interventions under study include other interventions and procedural interventions. Research is primarily sponsored by academic and government institutions.
83 publications have been identified in PubMed for Klippel-Feil syndrome. Research spans Case Report / Case Series (73%), Review / Meta-Analysis (8%), and Basic Science / Preclinical (6%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 61 |
Data assembled from 4 of 12 sources · Last updated Sep 19, 2026, 3:00 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about Klippel-Feil syndrome
Research summaries | 7 | 8% |
Laboratory research | 5 | 6% |
Disease patterns and progression | 5 | 6% |
Testing and diagnosis research | 2 | 2% |
Clinical study results | 2 | 2% |
Other research | 1 | 1% |
Li XC (2026). [PMID: 41592883](https://pubmed.ncbi.nlm.nih.gov/41592883/). *BMJ case reports*. [Case Report / Case Series]
Rais MA (2026). [PMID: 41699301](https://pubmed.ncbi.nlm.nih.gov/41699301/). *Oral and maxillofacial surgery*. [Case Report / Case Series]
Szoszkiewicz A (2026). [PMID: 41751889](https://pubmed.ncbi.nlm.nih.gov/41751889/). *International journal of molecular sciences*. [Case Report / Case Series]
Perrot T (2026). [PMID: 39563083](https://pubmed.ncbi.nlm.nih.gov/39563083/). *British journal of neurosurgery*. [Case Report / Case Series]
Ishigami D (2026). [PMID: 41627428](https://pubmed.ncbi.nlm.nih.gov/41627428/). *Neuroradiology*. [Case Report / Case Series]
Lima JM (2026). [PMID: 41712085](https://pubmed.ncbi.nlm.nih.gov/41712085/). *Spine deformity*. [Case Report / Case Series]
Doğan Y (2026). [PMID: 41732120](https://pubmed.ncbi.nlm.nih.gov/41732120/). *Pain practice : the official journal of World Institute of Pain*. [Case Report / Case Series]
Yanes-Rodríguez M (2026). [PMID: 41512592](https://pubmed.ncbi.nlm.nih.gov/41512592/). *Semergen*. [Case Report / Case Series]
Al Jaafar M (2026). [PMID: 42179472](https://pubmed.ncbi.nlm.nih.gov/42179472/). *Case Rep Radiol*. [Case Report / Case Series]
Shashidhara KC (2026). [PMID: 41004563](https://pubmed.ncbi.nlm.nih.gov/41004563/). *Neurology India*. [Case Report / Case Series]