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Year : 2018  |  Volume : 2  |  Issue : 1  |  Page : 21-25

Functional anatomy of the hand: prevalence of the linburg–Comstock anomaly in a young saudi population

1 Department of Surgery, King Saud Bin Abdul Aziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
2 Department of Basic Medical Science, College of Medicine, King Saud Bin Abdul Aziz University for Health Sciences, National Guards Health Affairs, Riyadh, Kingdom of Saudi Arabia

Correspondence Address:
Dr. Faisal FA Almehaid
Department of Surgery, National Guards Health Affairs, King Saud Bin Abdul Aziz University for Health Sciences, Riyadh
Kingdom of Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmsr.jmsr_33_17

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Objectives: Linburg–Comstock (LC) anomaly is a developmental defect, characterized by flexion of thumb causing flexion of the index finger with pain in the wrist and forearm due to a tendinous interconnection between the flexor pollicis longus and flexor digitorum profundus. Methods: We carried out a random cross-sectional study in 2016. Undergraduate students were recruited; we excluded those with inflammation, hand or forearm trauma or surgery. Data were analyzed descriptively and categorically using Microsoft Excel and SPSS-20. Results: The study included 331individuals; 164 (49.5%) were male, and 167 (50.5%) were female, out of which 130 (39%) had LC anomaly. The mean age was 23 years (standard deviation ± 5.3). LC anomaly was found bilaterally in 43 (12.9%), in the right hand in 51 (15.4%) and in the left hand in 35 (10.5%). It was found bilaterally in females in 17 (10.1%) participants, and in males in 26 (15.8%), P = 0.37. The right-hand dominance was found in 294 (89%) versus left-hand in 37 (11%). Conclusion: The prevalence of LC anomaly was 39%, which matches with the global prevalence, the males showed slightly more prevalence of bilateral LC anomaly. The right-hand dominance was found in 89% as opposed to 11% having left-hand dominance.

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