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Which Approach Is Most Optimal for Needle Electromyographic Examination of the Biceps Femoris Short Head: Medial or Lateral?

Annals of Rehabilitation Medicine 2021년 45권 1호 p.42 ~ 48
박종헌, 류임주, 임하경, 차재현, 신기준, 임혜창, 김동휘,
소속 상세정보
박종헌 ( Park Jong-Heon ) - Korea University Ansan Hospital Department of Dermatology
류임주 ( Rhyu Im-Joo ) - Korea University College of Medicine Department of Anatomy
임하경 ( Lim Ha-Kyoung ) - Korea University Anam Hospital Department of Internal Medicine
차재현 ( Cha Jae-Hyun ) - Korea University Anam Hospital Department of Laboratory Medicine
신기준 ( Shin Gi-Jun ) - Korea University Ansan Hospital Department of Orthopedic Surgery
임혜창 ( Rhim Hye-Chang ) - Korea University College of Medicine Department of Physical Medicine and Rehabilitation
김동휘 ( Kim Dong-Hwee ) - Korea University College of Medicine Department of Physical Medicine and Rehabilitation

Abstract


Objective: To investigate the anatomical characteristics of the biceps femoris short head (BS) and determine the optimal needle placement for BS examination.

Methods: Twenty-one lower limbs were dissected. The distances from the medial and lateral margins of the biceps femoris long head (BL) tendon to the common fibular nerve (CFN) (M_CFN_VD and L_CFN_VD, respectively) and the distance from the lateral margin of the BL tendon to the lateral margin of the BS (L_BS_HD) were measured 5 cm proximal to the tip of the fibular head (P1), four fingerbreadths proximal to the tip of the fibular head (P2), and at the upper apex of the popliteal fossa (P3).

Results: The BS was located lateral to the BL tendon. The CFN was located along the medial margin of the BL tendon. The median values were 2.0 (P1), 3.0 (P2), and 0 mm (P3) for M_CFN_VD; and 17.4 (P1), 20.2 (P2), and 21.8 mm (P3) for L_CFN_VD; and 8.1 (P1), 8.8 (P2), and 13.0 mm (P3) for L_BS_VD.

Conclusion: The lateral approach to the BL tendon was safer than the medial approach for examining the BS. Amore proximal insertion site around the upper apex of the popliteal fossa was more accurate than the distal insertion site. In this study, we propose a safer and more accurate approach for electromyography of the BS.

키워드

Hamstring muscles; Hamstring tendons; Electromyography; Fibular nerve; Cadaver

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