DeCure's autonomous Rare AI scientist is researching a drug-repurposing hypothesis for congenital radioulnar synostosis — screening already-approved drugs against its 2-gene Open Targets disease module to publish open-access research. Research is fast; the path to publication is funded in milestone stages.
Disease moduleCongenital radioulnar synostosis maps to a 2-gene Open Targets module — the target space DeCure's AI scientist screens approved drugs against.
DeCure.ai methodSignature reversal (LINCS) plus network proximity (STRING) rank already-approved drugs likely to perturb this module — the same engine that produces DeCure.ai's repurposing hypotheses.
Repurposing thesisScreening approved medicines against this disease module, then publishing the evidence for the strongest candidate. Known pharmacology and human exposure data make the first question sharper — they do not establish safety or efficacy in a new indication.
Research record
01
ResearchComing soon
Candidate research + dossier — target rationale, drug-repurposing thesis and evidence pack.proof: Published dossier + on-chain hash
02
ValidationComing soon
In-vitro biological validation at a contract research org (CRO).proof: CRO contract + in-vitro report
03
Peer review & paperComing soon
Peer-reviewed paper published open-access (preprint + journal).proof: DOI + open-access link + on-chain hash
Current lead
No approved-drug candidate for congenital radioulnar synostosis is corroborated in the literature DeepSearch retrieved. Some conditions are managed with non-pharmacological care — a device, surgery or physical therapy — rather than a medicine; that may be the case here, or the literature we found may simply be too sparse yet to support a drug-repurposing angle.
What the evidence adds up to
Congenital radioulnar synostosis is a rare skeletal abnormality present at birth, often diagnosed late when functional problems appear. A 2025 case report describes a child diagnosed at about 2 years despite mild limb abnormality noticed at birth. A 2018 case report of the same condition in a 22-month-old child notes the diagnosis is usually delayed. A 2023 case report of unilateral synostosis in a 4-year-old states treatment may be conservative, surgical with variable success, or psychotherapy.
Surgical treatment is the main intervention described. A 2005 series of four cases in three patients (average age 4 years 5 months) used rotational osteotomy at the radial diaphysis, immobilising the forearm in full supination. Bone union was obtained in all patients without complications or correction loss, with functional improvements at an average follow-up of 21 months. A 1977 series of four patients (three bilateral, one unilateral) treated two bilateral cases by resecting the radial head and fixing the forearm in supination with a Kirschner wire and screw; both improved in activities of daily living. A 2025 series of 12 children (16 surgical procedures) used derotational osteotomy at the synostosis level (Green technique) with wire fixation in 14 procedures, and a combined method adding corrective radial osteotomy with plate fixation in 2 procedures. Over a follow-up of 1 to 5 years, all achieved functional forearm positioning in neutral, improved quality of life, and acquired new hygiene and learning skills. However, transient neuropathy of the deep branch of the radial nerve (finger extensor paresis) occurred in 5 of 16 interventions, and one case of delayed consolidation followed the two-level osteotomy. The authors note the risk of complications may increase with age at correction but found no statistically significant association, and state the sample requires expansion for more accurate comparison of techniques.
A 2002 report describes two children with posttraumatic radioulnar synostosis, not congenital. One was treated by simple excision, the other by excision and interposition of Gore-Tex vascular graft material; the authors found no other report of that technique in the literature. No drug treatment appears in any of the abstracts. What remains missing are larger, prospective comparisons of the many surgical techniques, standardised outcome measures across centres, and any evidence base for non-surgical management or patient stratification by age or synostosis type.
Evidence
Retrieved by DeepSearch across 234,678,978 indexed works and resolved on OpenAlex — ranked by citations, including the results that did not work.
Journal of Pediatric Orthopaedics · 2005 · 42 citations
Rotational Osteotomy at the Diaphysis of the Radius in the Treatment of Congenital Radioulnar Synostosis
AbstractFour cases of congenital radioulnar synostosis in three patients were treated by rotational osteotomy of the distal radius. The diaphysis of the radius was osteotomized transversely, and then the forearm was supinated manually. Following surgery, the palm was immobilized in a fully supinated position by a long-arm cast. The average age at surgery was 4 years 5 months old (range 3 years 11 months to 4 years 11 months), and the average follow-up was 21 months (range 12-36 months). Bone union was obtained in all patients without any complications or correction loss. Functional improvements were achieved in all patients. This procedure is simple and safe in the treatment of congenital radioulnar synostosis.
Journal of Pediatric Orthopaedics · 2002 · 8 citations
Surgical treatment of posttraumatic radioulnar synostosis in children.
AbstractThe authors describe two children who underwent surgical treatment of radioulnar synostosis. One case involved simple excision; the other, excision and interposition of Gore-Tex vascular graft material. In a review of the literature, no other report of the latter type of surgical treatment was found. A discussion of the literature concerning this rare complication in children and the current surgical treatment options are included.
West African journal of radiology · 2018 · 5 citations
A case report of congenital bilateral proximal radioulnar synostosis in a 22-month-old child
AbstractCongenital radioulnar synostosis is a skeletal abnormality present at birth which may appear clinically as a mild abnormality in the early years. The diagnosis is usually delayed until functional abnormality is noticed. This is a typical case of congenital bilateral proximal radioulnar synostosis diagnosed at about 2 years despite mild upper limb abnormality noticed at birth. The rarity of this condition prompted the report of this case.
Radiology Case Reports · 2023 · 2 citations · open access
Unilateral congenital proximal radioulnar synostosis in a 4-year-old boy: A case report
AbstractCongenital radioulnar synostosis is a rare musculoskeletal disorder of the elbow, occurring as a result of variable degree and length of the congenital fusion of the proximal radioulnar joint. Patients presents early to the hospital depending on the severity of the synostosis and its effect on elbow function. It may have psychosocial effects on the affected individuals as they grow older especially when the deformity is dramatic. Treatment may be conservative, surgical (which may have a variable degree of success) and psychotherapy.
West African journal of radiology · 2025 · 0 citations · open access
A case report of congenital bilateral proximal radioulnar synostosis in a 22‑month‑old child
AbstractCongenital radioulnar synostosis is a skeletal abnormality present at birth which may appear clinically as a mild abnormality in the early years. The diagnosis is usually delayed until functional abnormality is noticed. This is a typical case of congenital bilateral proximal radioulnar synostosis diagnosed at about 2 years despite mild upper limb abnormality noticed at birth. The rarity of this condition prompted the report of this case.
Four Cases of the Congenital Radioulnar Synostosis
AbstractRecently we have experienced 4 patients of the congenital radioulnar synostosis.3 cases were bilateral radioulnal synostosis and 1 case was unilateral.2 of the bilateral cases were treated by method of resecting their radial head and fixing their forearms in supination with a kirschner wire and a screw.Postoperatively 2 patients have been improved ADL.
N N Priorov Journal of Traumatology and Orthopedics · 2025 · 0 citations · open access
Treatment experience of congenital radioulnar synostosis in children: case reports
AbstractINTRODUCTION: Congenital radioulnar synostosis is a rare orphan condition that impairs a child’s ability to adapt to everyday life and causes difficulties in acquiring writing and hygiene skills. Parents of children with this condition typically note a pronated position of the forearm and hand, along with the absence of rotational movements in the forearm. The diagnosis is based on radiographs of the forearm, and the type of synostosis is determined according to the Cleary–Omer classification. There is no conservative treatment for this condition. Over 20 surgical techniques have been described, which makes the indications and choice of a particular surgical method a subject of ongoing debate. CASE DESCRIPTION: This paper presents the clinical experience of treating congenital radioulnar synostosis in 12 children between January 2018 and March 2024. A total of 16 surgical procedures were performed: 14 derotational osteotomies at the synostosis level according to the Green technique with wire fixation, and 2 procedures using a combined method involving derotational osteotomy at the synostosis level with wire fixation and a corrective radial osteotomy in the middle third with plate fixation. The surgical technique and specific features of the fixation method are described in detail. Possible complications are discussed. Treatment outcomes were evaluated over a follow-up period ranging from 1 to 5 years postoperatively. All patients achieved functional positioning of the forearm in the neutral position, improved quality of life, and acquired new hygiene and learning skills. In the postoperative period, transient neuropathy of the deep branch of the radial nerve was observed in 5 out of 16 surgical interventions for congenital radioulnar synostosis, manifested by finger extensor paresis. One case of delayed consolidation was also noted following the two-level osteotomy. CONCLUSION: Treatment of radioulnar synostosis at a younger age is less traumatic, as the deformity is not multiplanar and does not require additional corrective elements beyond forearm derotation. This procedure is effective in eliminating the pronated position of the limb and improving functional capacity without causing serious complications. Although the risk of complications increases with age at the time of correction, no statistically significant association was found. The current sample requires expansion for more accurate comparison of surgical techniques.
Disease module: DeepOracle (Open Targets). Structures: RDKit from PubChem SMILES. Literature: retrieved by DeepSearch across 234,678,978 indexed works (targeted per-candidate search), resolved on OpenAlex.
DeCure is a research and publication project, not medical advice and not a treatment. "DeCure for X" describes a research goal, not a claim that a cure exists. Backing a cure is a contribution to fund the research — it is not an investment, and confers no yield, royalty, equity or IP ownership. Papers are published open-access by the DeCure.ai DAO.
