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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Anatomical variants of the intraarticular portion course of long head biceps tendon. Dierikx's arthroscopic classification [21]

From: MR arthrography: correlation between anatomic intraarticular variants of the long head of the biceps tendon (long head biceps tendon) and superior labral anterior to posterior (SLAP) lesions

MESO

The ‘‘mesotenon’’ family contains five types of connections that allow particularly good movement between the long head biceps tendon and the rotator cuff

MESO-VI (vinculum)

MESO-SB (small band)

MESO-PU (pulley-like sling)

MESO-PA (partial mesotenon)

MESO-CO (complete mesotenon)

ADH

The “adherent” family contains four types of stronger connections between a single long head biceps tendon and the capsule

ADH-PM [partially medially adherent to the supraspinatus (SSP)], ADH-PL (partially laterally adherent to the SSP), ADH-CL (completely adherent; attaching to the labrum)

ADH-CO (completely adherent to SSP; not attaching to the labrum)

SPL

The “split” family contains the two types of split biceps

SPL-DO (split biceps double origin)

SPL-RE (split biceps reversed type)

ABS

Indicates patients with a complete absence of long head biceps tendon

ABS (complete absence of long head biceps tendon)

  1. MESO mesotenon, ADH adherent, SPL split, ABS absence, long head biceps tendon long head of the biceps tendon