Prehistoric radio-ulnar synostosis
Implications for function
Bibliographic Data
| ID | 12371396 |
|---|---|
| Authors | Susan C Ant�n (University of Florida, corresponding author), Gina M Polidoro (Wake Forest University) |
| Year | 2000 |
| Volume | 10 |
| Issue | 3 |
| Pages | 189-197 |
| Publication date | 2000-01-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Osteoarchaeology (JOURNAL) |
| Journal identifiers | ISSN: 1047-482X • E-ISSN: 1099-1212 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/1099-1212(200005/06)10:3<189::aid-oa521>3.0.co;2-g |
| OpenAlex | W2057874919 |
| Language | EN |
| Citations received | 6 |
| References cited | 22 |
Proximal radio-ulnar synostosis (RUS) may occur congenitally, either as an isolated condition or as part of a syndrome, or it may occur as a secondary complication of forearm trauma. We provide a key for the differential diagnosis of congenital versus traumatic RUS, and for differentiation between types of congenital RUS. Congenital cases (CRUS) include absence of fracture, radial head abnormalities, radial shaft bowing, and absence of a sigmoid notch, whereas post-traumatic RUS results from either radial neck fracture or evulsion of the biceps brachii, followed by ossification of the resulting haematoma or of the interosseous (IO) membrane. Congenital cases include those which result from incompetent differentiation of the single mesenchymal mass that gives rise to the radius and ulna (Type I) and those that result from radial head dislocation in utero, resulting usually from humeral or ulnar defects (Type II). Type II CRUS can be differentiated by the presence of radial overgrowth, among other factors. Following these guidelines, we describe and compare the morphology of three congenital cases from North America. Two present bony fusions and one a functional fusion with radial overgrowth. In each case, CRUS significantly limits both supination and pronation. Despite differences among the cases, several morphological accommodations are shared as a result of fixation in the neutral (semi-pronated) position. These changes include the ventral migration of the IO crests of the ulnae and enlargement of the dorsal tubercles of the radius. Understanding the pattern of accommodations made in the face of compromised function ultimately increases our understanding of the patterns of growth in normal functional regimes. Copyright © 2000 John Wiley & Sons, Ltd
Brachioradialis · Deformity · Elbow · Forearm · Interosseous membrane · Ossification · Radial head · Synostosis · Ulna · Wrist · Congenital limb and hand anomalies · Medicine · Neurogenetic and Muscular Disorders Research · Williams Syndrome Research · Anatomy · Surgery
Care in Late Antiquity
Bilateral congenital radioulnar synostosis in an Early Horizon subadult burial from the site of Atalla, Peru
Rare congenital anomaly among population of the Migration Period (based on excavations in the Eastern Aral region)
A Case of Congenital Radioulnar Synostosis from Prehispanic Peru
A rare case of congenital humeroradioulnar synostosis from medieval Pawłów Trzebnicki, Poland
History of Health at Cayo Santiago—An Investigation of Environmental and Genetic Influences on the Skeletal Remains of the Introduced Rhesus Macaque ( Macaca mulatta ) Colony
| Unique citing works | 6 |
|---|---|
| Citations per year | 0,55 |
| Citation span | 2015 - 2025 (11) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 3 |