Topographical Anatomy of the Distal Ulna Attachment of the Radioulnar Ligament

Shin, Won-Jeong; Kim, Jong-Pil; Yang, Hun-Mu; Lee, Eun-Young; Go, Jai-Hyang; Heo, Kang

doi:10.1016/j.jhsa.2017.03.031

Cited by 32 publications

(33 citation statements)

References 34 publications

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“…In our study, the deep footprint seemed to be located around the centre of rotation of the DRUJ axis in a semilunar shape. The asymmetry of the deep insertion of the DRUL confirmed the findings of Shin et al. (2017), who described a long marginal insertion just behind the pole of the distal ulna, with a maximum width and length averaging 3.1 mm and 12.6 mm, respectively.…”

Section: Discussionsupporting

confidence: 87%

Ulnar footprints of the distal radioulnar ligaments: a detailed topographical study in 21 cadaveric wrists

Maniglio

Lin

Flueckiger

et al. 2020

J Hand Surg Eur Vol

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Understanding of the exact topography of the distal radioulnar ligaments insertions remains limited. An anatomical study was performed in 21 fresh frozen cadaveric wrists, where the superficial and deep ligaments were sequentially transected sharply at their ulnar insertions. The relationships between the distal radioulnar ligament footprints relative to the bony landmarks of the ulnar styloid were digitized. Our study demonstrated that in the coronal plane, the superficial distal radioulnar ligaments inserted at an average of 87% of the styloid height proximally to the styloid tip distally. The deep distal radioulnar ligaments inserted at an average of 81% of the styloid height distally to the fovea proximally. The superficial footprint had an area of 10.6 mm2 on the ulnar styloid. The deep distal radioulnar ligaments attachment was asymmetric and generally had two separate footprints. This study adds important topographical knowledge about the footprint of the distal radioulnar ligaments and may contribute to understanding the consequences of ulnar styloid fractures and distal radioulnar ligaments lesions.

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Section: Discussionsupporting

confidence: 87%

Ulnar footprints of the distal radioulnar ligaments: a detailed topographical study in 21 cadaveric wrists

Maniglio

Lin

Flueckiger

et al. 2020

J Hand Surg Eur Vol

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show abstract

“…We were unable to distinguish the RUL into the proximal and deep component macroscopically. Shin et al 10 independently identified deep and superficial components in a cadaver study using a dissecting microscope. In their study, the average distance between the fovea center and the ulnar head center was 2.4 mm.…”

Section: Discussionmentioning

confidence: 99%

“…This method is useful for measuring the distance and area of insertion at the unevenly shaped ulnar head. 10…”

mentioning

confidence: 99%

Morphology of the Ulnar Insertion of the Triangular Fibrocartilage Complex and Related Osseous Landmarks

Okuda

Sato

Mimata

et al. 2021

The Journal of Hand Surgery

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Purpose In triangular fibrocartilage complex (TFCC) injuries, a foveal tear of the radioulnar ligament often requires surgery. Previous studies have suggested that surgeons should attach the TFCC to the center of the fovea. The TFCC and its insertion points are small structures, and few studies have reported details of the foveal insertion. This study aimed to clarify the morphology of the ulnar insertion of the TFCC and related osseous landmarks with 3-dimensional imaging. Methods This study used 26 formalin-fixed cadavers. At the ulna, the TFCC was inserted from the fovea to the middle part of the ulnar styloid. After gross observation of the TFCC, the ulnar insertion was outlined using a 1.0-mm drill. We then created 3-dimensional images of the ulna using computed tomography and marked (with software) an outline of the foveal insertion of the TFCC. We measured the area and the long and short diameters of the TFCC insertion. Results The area of the TFCC insertion was 34 mm 2 and positively correlated with the height of the ulnar styloid and the area of the ulnar head. The TFCC's highest point was 58% of the ulnar styloid height. The center of the TFCC insertion was 1.3 mm ulnar and 0.6 mm dorsal from the lowest point of the ulnar surface. Conclusions The center of the TFCC insertion was slightly ulnar of the lowest point of the ulnar surface. This study revealed the center, the area, and the osseous relation of the ulnar insertion of the TFCC. Clinical relevance When surgeons repair a TFCC foveal tear, they can find the anatomical center of the ulnar insertion efficiently and easily based on its osseous relationship.

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“…Four areas were defined to evaluate the suture anchor's position on an AP radiograph: ulnar head, fovea, base of ulnar styloid process, apex of styloid process (Fig. 1) [17].…”

Section: Imagingmentioning

confidence: 99%

Arthroscopic-assisted 6U approach for foveal reattachment of triangular fibrocartilage complex with an anchor: Clinical and radiographic outcomes at 4 years’ mean follow-up

Auzias

Camus²,

Moungondo

et al. 2020

Hand Surgery and Rehabilitation

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Topographical Anatomy of the Distal Ulna Attachment of the Radioulnar Ligament

Cited by 32 publications

References 34 publications

Ulnar footprints of the distal radioulnar ligaments: a detailed topographical study in 21 cadaveric wrists

Ulnar footprints of the distal radioulnar ligaments: a detailed topographical study in 21 cadaveric wrists

Morphology of the Ulnar Insertion of the Triangular Fibrocartilage Complex and Related Osseous Landmarks

Arthroscopic-assisted 6U approach for foveal reattachment of triangular fibrocartilage complex with an anchor: Clinical and radiographic outcomes at 4 years’ mean follow-up

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