Clinical Profile of Congenital Clasped Thumb: A Case Series

Journal of Clinical Orthopaedics | Vol 7 | Issue 2 |  Jul-Dec 2022 | page: 43-51 | Bhaskaranand Kumar, Ashwath M Acharya, Himanshu R Prasad, S M Venugopal

DOI: :10.13107/jcorth.2022.v07i02.529

Author: Bhaskaranand Kumar [1], Ashwath M Acharya [2], Himanshu R Prasad [3], S M Venugopal [1]

[1] Department of Orthopaedics, Balaji Institute of Surgery, Research and Rehabilitation for the Disabled, Tirupati, Andhra Pradesh, India,
[2] Department of Hand Surgery, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India,
[3] Department of Orthopaedic Surgeon, Sunshine Hospital, Hyderabad, Telangana, India.

Address of Correspondence
Dr. Ashwath M Acharya,
Department of Hand Surgery, Kasturba Medical College, Manipal Academy of Higher Education, Manipal – 576 104, Karnataka, India.


Purpose: :Congenital clasped thumb is a rare deformity and not much has been described in literature about it. The aim of this study was to evaluate clinical profile of congenital clasped thumb, examine peroperative pathoanatomy, and evaluate the results of the treatment of such cases.

Methods: A prospective study on 57 patients [106 hands] was done and their data recorded from the medical case records. A thorough clinical and radiological assessment was performed. Patients were classified using the Tsuyuguchi classification. Splinting program was initially started and patients not responding to it and those older than 10 years underwent contracture release, joint stabilization, and local flap cover with or without tendon transfers. All patients were assessed by Gilbert’s grading after 1 year.

Results: There were 43 males and 14 females. The average age was 33 months [range 0–21 years]. At presentation, 51% [54/106] of hands were classified as severe with syndromic pattern [Type III]. About 61% [35/57] of the patients presented at the age <5 years and 21% after 10 years including three adults. About 41% of these patients [23/57] had a history of consanguinity and 27% [15/57] had a family history of a similar or associated congenital deformity. Splinting program showed excellent results in type I. An a-la-Carté release of soft tissues, joint stabilization with K-wire, and ligament reconstruction with local flap cover gave good to excellent results in 73% of our patients. Nine patients had features of web creep at first web space.

Conclusion: Congenital clasp thumb showed a strong genetic predisposition. There was no difference between type II and type III variants with respect to the pathoanatomy, treatment protocol, operative procedures, and results. Splinting program in mild deformity and surgical correction with reconstruction in more severe cases gave satisfactory results.

Keywords: Congenital adducted thumb, congenital clasped thumb, first web space contracture.


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How to Cite this article: Kumar B, Acharya AM, Prasad HR, Venugopal SM. Clinical Profile of Congenital Clasped Thumb: A Case Series. Journal of Clinical Orthopaedics Jul-Dec 2022;7(2):43-51.

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