|
|
 |
Back to Annual Meeting Posters Non Syndromic Congenital Bone Fusion of the Carpus – Evaluation of 17 Patients Rames Mattar Junior, MD, PhD1; Tiago Guedes da Motta Mattar, MD1; Emygdio Jose Leomil Paula, MD, PhD1; Marcelo Rosa Rezende, MD, PhD1; Teng Hsiang Wei, MD, PhD1; Luis Koiti Kimura, MD2; Luciano Ruiz Torres, MD1; Mateus Saito, MD1; Edgard Novaes Franca Bisneto, MD, PhD1 1Department of Orthopedic - Hand and Microsurgery Division, University of Sao Paulo, Sao Paulo, Brazil; 2Departmentf Orthopedic - Hand and Microsurgery Division, University of Sao Paulo, Sao Paulo, Brazil Introduction: Incomplete separation of cartilaginous carpal anlage during forth to eighth fetal life results in cartilage fusion (syncondrosis) or bone fusion (synostosis) between carpal bones that become radiographic apparent when carpal ossifies. Such anomalies occur rarely, are most likely asymptomatic and are usually found in radiographic images. Carpal synostoses are also denominated carpal coalition. Such anomalies occur more frequent in females, blacks and the most common fusions are of the lunate and triquetrum. The second site in frequency is between the capitates and hamate. Synostosis in the radial aspect of the carpus is very rare. Carpus synostosis can be part of a syndrome or an isolate anomaly, usually bilateral. Minaar classified congenital carpal synostoses between lunate and triquetrum. There are only few relates about symptomatic patients with degenerative wrists associated with isolate congenital carpal synostoses Objective: The objectives of this study are to evaluate the incidence, sintomatoly and the presence of degenerative changes in patients with congenital non syndromic carpus synostosis. Methods: We evaluated 17 patients from 1989 to 2009. Six patients developed pain and degenerative wrist. Ten patients presented synostosis between the lunate and triquetrum: four type 1, four type 3 and two type 2 according Minaarxs classification. Five patients presented synostosis between the capitate and hamate and two between the sacphoid and trapezium. Eleven patients were female and six male with age ranged from 7 to 51 years old (average 23,3 years old). We considered that ten patients were black and seven white. Results: Of all patients with congenital synostosis between lunate and triquetrum only three adults present symptoms after the third decade of life related to degenerative disease of the wrist. The mean age of this group was 41,3 years. Two presented type 3 and One type 1 synostosis according Minaar's classification . All children were asymptomaticf all five patients with congenital synostosis between capitate and hamate only two were symptomatic with arthrites. The mean age of this these two patients were 41,5 years. Two patients presented congental synostosis between scaphoid and trapezium and only one presented pain and arthritis at STT joint. Discussion: Complete or Incomplete non syndromic congenital synostosis can cause pain and degenerative joint. These patients must be followed and oriented concerning those complications. Congenital synostosis of the wrist can cause biomechanical changes and progressive degenerative disease of the wrist, Back to Annual Meeting Posters
|
|||||||
© 2026 American Association for Hand Surgery. Read the Privacy Policy.