Purpose: To obtain epidemiologic data on the Linburg-Comstock anomaly in Malaysia and to study the effect of the anomaly on key pinch strength.
Methods: We examined 292 healthy subjects (162 female and 130 male) bilaterally for the presence of the Linburg-Comstock anomaly. Each subject's key pinch strength was measured bilaterally using a pinch meter.
Results: The Linburg-Comstock anomaly was present in 101 of the 292 subjects (35%). Sixty-five subjects (22%) had it unilaterally, and 36 subjects (6%) had it bilaterally. The anomaly was associated with superior key pinch strength.
Conclusions: The study provides epidemiologic data of this anomaly in Malaysia and considers its anatomical influence on key pinch strength.
Type Of Study/level Of Evidence: Prognostic IV.
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Article Synopsis
- * A study examined 500 healthy individuals, finding that 43% had the LC anomaly, with variations in prevalence based on ethnicity—highest in Hispanics (57%) and lowest in African Americans (31%).
- * The presence of the LC anomaly was linked to reduced tip pinch strength, suggesting it may impact hand function.
Secondary Linburg-Comstock syndrome post-trapeziectomy surgery.
BMJ Case Rep
July 2024
Department of Trauma and Orthopaedic Surgery, Raigmore Hospital, Inverness, UK
Article Synopsis
- Linburg-Comstock syndrome is a condition where the thumb and index finger's flexor tendons become inflamed, leading to restricted movement and possible pain or swelling in patients.
- A case study highlighted an 80-year-old woman who developed this syndrome without pain after undergoing trapeziectomy surgery for arthritis, which is a unique occurrence.
- This report is significant because it is the first documented instance of Linburg-Comstock syndrome arising as a complication following trapeziectomy, contributing to our understanding of post-surgical complications.
The Hand Hug: A Novel Test for Linburg-Comstock Syndrome and Wide-awake Correction of the Anomaly.
Plast Reconstr Surg Glob Open
March 2023
Dalhousie University, Saint John, New Brunswick, Canada.
An accessory muscle belly or an accessory muscle head? An unusual arrangement of muscles in the anterior compartment of the forearm.
Surg Radiol Anat
March 2023
Department of Anatomy, Second Faculty of Medicine, Charles University, Plzenska 130/221, 150 06, Prague 5, Czech Republic.
Purpose: Knowledge of the unusual arrangement of the flexor pollicis longus (FPL) muscle is important as the variable tendon may be a rare cause of carpal tunnel syndrome.
Methods: During a routine dissection at the Department of Anatomy, an unusual formation of the FPL muscle was observed in a formalin embalmed Central European cadaver.
Results: This report presents a variation of the FPL muscle, where the muscle split and formed a separate accessory head inserting into the first lumbrical muscle.
Outcome of carpal tunnel release surgery in patients with and without Linburg-Comstock anomaly.
Hand Surg Rehabil
December 2021
Hand Surgery Unit, Department of Orthopedic Surgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Borges Lagoa 786, São Paulo 04038-032, Brazil.
Anatomical variations may entail increased volume within the carpal tunnel and consequently the development of carpal tunnel syndrome (CTS) symptoms. The clinical importance of anomalous connection between the flexor pollicis longus (FPL) and flexor digitorum profundus (FDP) tendons was described by Linburg and Comstock. The objective of the present study was to compare postoperative outcomes of carpal tunnel release surgery in patients with and without Linburg-Comstock anomaly (LCA).
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