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Master knot of Henry revisited: a radiologist's perspective on MRI
R Rajakulasingam1, J Murphy1, H Panchal2
1Department of Musculoskeletal Radiology, Royal Orthopaedic Hospital, Birmingham B31 2AP, UK.
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.
Insights
The master knot of Henry is an anatomical space prone to tendon injuries like intersection syndrome. Understanding its variations is crucial for accurate diagnosis and effective surgical treatment of foot and ankle pathologies.
Area of Science:
- Anatomy
- Radiology
- Orthopedics
Background:
- The master knot of Henry is an anatomical space where flexor hallucis longus and flexor digitorum longus tendons cross.
- This region is susceptible to pathologies such as intersection syndrome, tendinosis, tenosynovitis, and tears.
Purpose of the Study:
- To detail the anatomy of the master knot of Henry, including variations.
- To review common and rare pathologies affecting this anatomical region.
- To enhance radiologists' awareness of knot of Henry pathologies.
Main Methods:
- Educational review of anatomical and pathological literature.
- Analysis of tendon variations and their clinical implications.
Main Results:
- Detailed description of the master knot of Henry's anatomy and common variations.
- Overview of pathologies including intersection syndrome, tendinosis, and tenosynovitis.
- Emphasis on the impact of anatomical variations on surgical outcomes.
Conclusions:
- Accurate understanding of the master knot of Henry's anatomy and variations is essential for diagnosing and treating related pathologies.
- Radiologists should be aware of the spectrum of conditions affecting this region.
- Knowledge of this area aids in optimizing surgical interventions and patient care.
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