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Updated: Dec 2, 2025

Evaluation of Muscle Function of the Extensor Digitorum Longus Muscle Ex vivo and Tibialis Anterior Muscle In situ in Mice
Published on: February 9, 2013
Intratendinous ganglion in the extensor digitorum communis
Yoichi Sugiyama1,2, Kiyohito Naito1, Kenji Goto1
1Department of Orthopaedics, Juntendo University School of Medicine Tokyo, Japan.
This case report details an intratendinous ganglion within the extensor digitorum communis tendon. Treatment may require tendon transfer or grafting due to potential tendon injury risks.
Area of Science:
- Orthopedic Surgery
- Musculoskeletal Disorders
Background:
- Intratendinous ganglion cysts are rare, often lacking a clear etiology.
- Synovitis is hypothesized as a potential cause for their development.
Observation:
- A case of intratendinous ganglion originating in the extensor digitorum communis tendon is presented.
- The cyst's intrafiber location within the tendon substance was noted.
Findings:
- The developmental mechanism of intratendinous ganglia remains poorly understood.
- Surgical intervention for this condition carries a risk of iatrogenic tendon injury.
Implications:
- Management strategies must consider the potential for tendon damage during treatment.
- Tendon transfer and tendon grafting may be necessary surgical options.
- Further research into the pathogenesis of intratendinous ganglia is warranted.
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