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Anatomical–positional relationship between the bone structure of the distal radius and flexor pollicis longus tendon using ultrasonography

  • Mayuko Kinoshita
  • Kiyohito NaitoEmail author
  • Kenji Goto
  • Yoichi Sugiyama
  • Nana Nagura
  • Hiroyuki Obata
  • Yoshiyuki Iwase
  • Kazuo Kaneko
Original Article
  • 24 Downloads

Abstract

Purpose

In this study, using an ultrasonography, we investigated the positional relationship between the volar bone cortex of distal radius and flexor pollicis longus (FPL) tendon in the distal radius of healthy subjects.

Methods

The subjects were 32 healthy volunteers (56 wrists) (Age 32.9 ± 8.5, 16 males and 16 females). Their wrists were imaged by an ultrasonography. The distances between the watershed line (WS) and FPL (A), between the distal margin of pronator quadratus (DMPQ) and FPL (B), between the FPL and volar radial bone cortex at the maximum muscle belly of the PQ muscle right below the sliding region of the FPL tendon (C), and between the WS and DMPQ (D) were measured.

Results

All these parameters showed a normal distribution. When the correlation among the parameters was investigated, a correlation with an index of the physique, BMI, was noted in A (P < 0.01), B (P < 0.01), and C (P < 0.01), but no correlation was noted only in D (P = 0.59).

Conclusions

Our results were suggested that when distal radius fracture is treated with a distal plate placement, the appropriate placement can be achieved by applying about 3 mm additional dissection of soft tissue on the volar bone cortex distal to the DMPQ.

Keywords

Distal radius fracture Flexor pollicis longus tendon Ultrasonography Bone structure of the distal radius 

Notes

Author contributions

Protcol/project development was performed by KN and YI. Data collection or management was performed by MK, KG, YS, HO, and NN. Data analysis was performed by MK, KG, YS, HO, NN, and KN. Manuscript writing/editing was performed by MK, KK, and KN.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of OrthopaedicsJuntendo University School of MedicineTokyoJapan
  2. 2.Department of Orthopaedic SurgeryJuntendo Tokyo Koto Geriatric Medical CenterTokyoJapan

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