Jarusriwanna Atthakorn, Thamphongsri Korakot, Chuckpaiwong Bavornrit
J Med Assoc Thai. 2016 Nov;99(11):1215-9.
Extensor hallucis capsularis is an accessory extensor tendon that is sporadically observed at the medial side of the extensor hallucis longus tendon. Knowledge regarding frequency of occurrence and size of the tendon may help surgeons decide whether to use this tendon or not when tendon graft is needed during foot surgery. Conclusion: Extensor hallucis capsularis tendon was found in the vast majority of cadavers evaluated in this study. Most originated from the extensor hallucis longus tendon and inserted into the first metatarsophalangeal joint capsule. Application of this tendon as a tendon graft should be carefully considered due to variations of the length and the narrow width which may limited strength of this tendon graft.
To evaluate the frequency, size, origin, and insertion of the extensor hallucis capsularis tendon in cadaveric study subjects.
Extensor hallucis capsularis tendon was examined via dissection of 55 cadaveric feet. Thirty-six male and 19 female cadavers were included, with an age range of 33 to 90 years (mean 67.3±14.0). One foot from each study subject was dissected and evaluated (29 left feet and 26 right feet). Demographic data (gender, age, and height) and outcome data (frequency, origin, insertion, length, and width of the tendon) were recorded. Tendon measurement reliability was evaluated by intraclass correlation coefficient.
Extensor hallucis capsularis tendon was found in 90.9% of cadaveric subjects. Mean tendon length and width was 11.3±4.0 cm and 1.6±0.6 mm, respectively. Most tendons branched from the extensor hallucis longus tendon and attached to the first metatarsophalangeal joint capsule.
Extensor hallucis capsularis tendon was found in the vast majority of cadavers evaluated in this study. Most originated from the extensor hallucis longus tendon and inserted into the first metatarsophalangeal joint capsule. Application of this tendon as a tendon graft should be carefully considered due to variations of the length and the narrow width which may limited strength of this tendon graft.
拇长伸肌囊状肌是一条副伸肌腱，偶尔可见于拇长伸肌腱内侧。了解该肌腱的出现频率和大小，有助于外科医生在足部手术需要肌腱移植时决定是否使用此肌腱。结论：在本研究评估的绝大多数尸体中发现了拇长伸肌囊状肌腱。大多数起源于拇长伸肌腱，插入第一跖趾关节囊。由于该肌腱长度变化和宽度较窄可能会限制肌腱移植的强度，因此在将其用作肌腱移植时应谨慎考虑。
在尸体研究对象中评估拇长伸肌囊状肌腱的出现频率、大小、起源和附着点。
通过解剖55只尸体足来检查拇长伸肌囊状肌腱。纳入36具男性尸体和19具女性尸体，年龄范围为33至90岁（平均67.3±14.0岁）。对每个研究对象的一只脚进行解剖和评估（29只左脚和26只右脚）。记录人口统计学数据（性别、年龄和身高）和结果数据（肌腱的出现频率、起源、附着点、长度和宽度）。通过组内相关系数评估肌腱测量的可靠性。
90.9%的尸体研究对象中发现了拇长伸肌囊状肌腱。肌腱平均长度和宽度分别为11.3±4.0厘米和1.6±0.6毫米。大多数肌腱从拇长伸肌腱分出并附着于第一跖趾关节囊。
在本研究评估的绝大多数尸体中发现了拇长伸肌囊状肌腱。大多数起源于拇长伸肌腱，插入第一跖趾关节囊。由于该肌腱长度变化和宽度较窄可能会限制肌腱移植的强度，因此在将其用作肌腱移植时应谨慎考虑。
