Master knot of Henry revisited: a radiologist's perspective on MRI. Issue 12 (December 2019)

• Record Type: Journal Article
• Authors: Rajakulasingam, R.; Murphy, J.; Panchal, H.; James, S.L.; Botchu, R.
• Is Part Of: Clinical radiology. Volume 74:Issue 12(2019)
• Page Start: 972.e1
• Page End: 972.e8
• Publication Date: 2019-12
• Subjects: Medical radiology -- Periodicals; Radiotherapy -- Periodicals; Radiotherapy -- Periodicals; Radiology -- Periodicals; Societies, Medical -- Periodicals; Medical radiology; Radiotherapy; Electronic journals; Periodicals; 616.0757
• DOI: 10.1016/j.crad.2019.08.011
• Languages: English
• ISSNs: 0009-9260

Abstract

Abstract : The master knot of Henry refers to a narrow space located between the anatomical crossover of the flexor hallucis longus and flexor digitorum longus tendons. This small space is prone to "intersection syndrome, " as a result of tendinosis, tenosynovitis, and tears of the aforementioned tendons at the knot of Henry. The aim of this educational review is to detail the anatomy of the knot of Henry, including common variations in the tendon position and orientation. These complex interconnections can affect the outcome of surgical intervention if not appreciated at the time of treatment. We will also provide an overview of the common and rarer pathologies related to the knot of Henry. The aim of the present review is to make radiologists more aware of pathologies in this region, which are not routinely seen in daily practice. Highlights: The master knot of Henry is a complex but commonly overlooked small anatomical space in the plantar mid foot region. The anatomy in this area is important for surgeries such as tendon transfer. Common and rare tumours can present at the knot of Henry. It is crucial for radiologists to appreciate imaging appearances and relationship to nearby important structures.