Quantitative analysis of attachment of the labrum to the glenoid fossa: a cadaveric study

Yoshida, Masahito; Goto, Hideyuki; Nozaki, Masahiro; Nishimori, Yasuhiro; Takenaga, Tetsuya; Murase, Atsunori; Waguri-Nagaya, Yuko; Iguchi, Hirotaka; Kobayashi, Mariko; Sugimoto, Katsumasa; Nishiyama, Takeshi; Otsuka, Takanobu

doi:10.1007/s00776-015-0742-4

Cited by 6 publications

(6 citation statements)

References 24 publications

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“…Previous anatomical studies investigated the length of the labral attachment viewed from a cross section of the glenoid at clock-referent positions of the labral attachment. Yoshida et al 14 investigated the length of the labral attachment to the glenoid at the 2, 4, 6, 8, 10, and 12 o'clock positions. The authors reported that the mean length of the labral attachment for all clock positions was 4.6 mm.…”

Section: Discussionmentioning

confidence: 99%

Anatomic Analysis of the Attachment of the Posteroinferior Labrum and Capsule to the Glenoid: A Cadaveric Study

Koga

Itoigawa

Wada

et al. 2020

Arthroscopy: The Journal of Arthroscopic & Related Surgery

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Section: Discussionmentioning

confidence: 99%

Anatomic Analysis of the Attachment of the Posteroinferior Labrum and Capsule to the Glenoid: A Cadaveric Study

Koga

Itoigawa

Wada

et al. 2020

Arthroscopy: The Journal of Arthroscopic & Related Surgery

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“…Importantly, humeral stability was found to be decreased, particularly in the inferior direction, by around 20% after labral resection (Halder et al, 2001). Anatomically, this can be attributed to the inferior region’s lateral extension, as well as its larger fibrocartilaginous area, causing a higher opposing translational force of the humeral head (Hata et al, 1992; Yoshida et al, 2015). As for intra‐articular pressure, Habermeyer et al (1992) found that in shoulders with anterior labral tears the negative intra‐articular pressure was not maintained, in contrast with shoulders with an intact labrum.…”

Section: Labral Gross Anatomy and Biomechanicsmentioning

confidence: 99%

“…To better understand the potential contribution of fibrocartilage stress dissipation in the labrum, it is important to examine the relationship between fibrocartilaginous area of the labrum and related capsuloligamentous structures. Yoshida et al (2015) undertook such experiments using Safranin‐O to stain proteoglycans. The fibrocartilage area was found to be the largest in the inferior regions of the labrum, and the least in the anterosuperior region (Yoshida et al, 2015), suggesting that the inferior region may play a role in dissipating stress produced by the inferior glenohumeral ligament and overlaying capsule during joint movement.…”

Section: Labral Microanatomy and Biomechanicsmentioning

confidence: 99%

“…Yoshida et al (2015) undertook such experiments using Safranin‐O to stain proteoglycans. The fibrocartilage area was found to be the largest in the inferior regions of the labrum, and the least in the anterosuperior region (Yoshida et al, 2015), suggesting that the inferior region may play a role in dissipating stress produced by the inferior glenohumeral ligament and overlaying capsule during joint movement. Furthermore, it has been suggested that the anterosuperior region of the labrum, having the least fibrocartilage, has minimal medial to lateral capsuloligamentous pull over the labrum with the presence of the opening to the subscapular bursa (Jobe et al, 2018; Moore et al, 2015).…”

Section: Labral Microanatomy and Biomechanicsmentioning

confidence: 99%

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Anatomical, functional and biomechanical review of the glenoid labrum

et al. 2021

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The glenohumeral joint is the most mobile joint in the human skeleton, supported by both active and passive stabilisers. As one of the passive stabilisers, the glenoid labrum has increasingly been recognised to play an important role in stability of the glenohumeral joint, acting to maintain intraarticular pressure, centralise the humeral head and contribute to concavity‐compression stability. Several studies have investigated the macro‐ and micro‐anatomical features of the labrum as well as its biomechanical function. However, in order to better understand the role of the labrum and its mechanics, a comprehensive anatomical, functional and biomechanical review of these studies is needed. Therefore, this article reviews the current literature detailing anatomical descriptions of the glenoid labrum, with an emphasis on its function(s) and biomechanics, as well as its interaction with neighbouring structures. The intimate relationship between the labrum and the surrounding structures was found to be important in glenohumeral stability, which owes further investigation into the microanatomy of labrum to better understand this relationship.

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“…Reinforcing the stability of the glenohumeral joint is the glenoid labrum, a fibrocartilaginous structure that encircles the glenoid to supplement concavity of the shoulder. 1 , 2 Despite its extensive network of dynamic and static stabilizers, the delicate architectural anatomy of the glenoid labrum is inherently predisposed to injury. 3 , 4 Disruption to the glenohumeral balance can result in glenoid labral tears and sequential glenohumeral instability.…”

Section: Introductionmentioning

confidence: 99%

Arthroscopic Labral Repair Using Knotless Suture Anchors in the Setting of a 270° Labral Tear of the Shoulder

Comfort

Peebles

Ruzbarsky

et al. 2021

Arthroscopy Techniques

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Extensive glenoid labral tears, whether the result of repetitive instability or first-time dislocation, compromise the mechanical stability of the glenohumeral joint due to disruption of the anterior, inferior, posterior, and/or superior portions of the labrum. These lesions often result in recurrent multiplanar instability and pain that is nonresponsive to conservative management and difficult to diagnose due to variability in clinical presentation and advanced imaging findings. Arthroscopic repair techniques to address symptomatic shoulder instability have showed positive patient-reported outcomes, low failure rates, and high return-to-sport rates. The evolution of knotless suture anchors offers a fixation method that has proven to be functionally equivalent to knotted suture anchors while avoiding the risks of knotted anchors (knot loosening, knot migration, articular abrasion) and allowing easier placement and decreased operative time. The purpose of this technique is to describe our preferred method to treat a 270 labral tear through arthroscopic knotless anchor repair and demonstrate the expanded application of this technique for extensive glenoid labral pathology.

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Quantitative analysis of attachment of the labrum to the glenoid fossa: a cadaveric study

Cited by 6 publications

References 24 publications

Anatomic Analysis of the Attachment of the Posteroinferior Labrum and Capsule to the Glenoid: A Cadaveric Study

Anatomic Analysis of the Attachment of the Posteroinferior Labrum and Capsule to the Glenoid: A Cadaveric Study

Anatomical, functional and biomechanical review of the glenoid labrum

Arthroscopic Labral Repair Using Knotless Suture Anchors in the Setting of a 270° Labral Tear of the Shoulder

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