Scapholunate Interosseous Ligament Anatomy and Biomechanics

Rajan, Prashant V.; Day, Charles S.

doi:10.1016/j.jhsa.2015.03.032

Cited by 59 publications

(56 citation statements)

References 63 publications

(53 reference statements)

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“…A limitation of this study is that fatigue of the BLB scaffold was only tested uniaxially, and as such does not capture the complexity of the physiological loading, it is nevertheless a step forward demonstrating the potential of this multiphasic BLB construct toward clinical translation. In addition to this, the current knowledge on the biomechanical behavior of the SLIL is mostly limited to pull out tests in a quasi‐static uniaxial testing setting, whereby the deformation rate seems arbitrarily selected with potentially no similarity to the physiological rate . The lack of proper characterization remains a critical impediment for designing and developing standardized testing methods for biomaterial constructs.…”

Section: Discussionmentioning

confidence: 99%

“…Finally, the palmar region has an average thickness of 1 mm and is composed of collagen fibers running obliquely. The SLIL is the primary stabilizer of the scapholunate joint and injury to this ligament is the most common cause of carpal instability . The biomechanics of the SLIL has been thoroughly investigated by Berger et al revealing anisotropic mechanical properties depending on the portion of the ligament, with the dorsal region being the strongest portion and hence responsible for most of the stabilization imparted to the scapholunate joint.…”

Section: Introductionmentioning

confidence: 99%

“…As no current procedure provides reliably good results, there is a general lack of consensus among clinicians in regard to what is the most appropriate treatment option 1a,3. Currently, SLIL injuries are often reconstructed by “tenodesis,” whereby a tendon graft is inserted between the scaphoid and lunate in order to re‐establish their relationship and restore stability of the wrist joint .…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, collagen lattices in ligaments are comparatively more compact than those found in tendons . Untreated scapholunate instability alters wrist kinematics and results in the development of arthritis, which may necessitate invasive osteotomy and bone fusion 1b,3a,b. Given the demographic of the injury affecting young patients, this management is not ideal as it results in permanent restriction of wrist motion and affects hand dexterity.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Additively Manufactured Multiphasic Bone–Ligament–Bone Scaffold for Scapholunate Interosseous Ligament Reconstruction

Vaquette

Bindra

Baldwin

et al. 2019

Adv Healthcare Materials

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The scapholunate interosseous ligament (SLIL) is a frequently torn wrist ligament, and current surgical options for SLIL tears are suboptimal. This research aims to develop a novel multiphasic bone–ligament–bone scaffold (BLB) with a porous interface using 3D‐printing and cell sheet technology for the reconstruction of the dorsal scapholunate interosseous ligament. The BLB comprises two bone compartments bridged by aligned polycaprolactone fibers mimicking the architecture of the native tissue. Mechanical testing of the BLBs shows their ability to withstand physiological forces. Combination of the BLB with human bone marrow mesenchymal stem cell sheet demonstrates that the harvesting did not compromise cell viability, while allowing homogeneous distribution in the ligament compartment. The BLBs are loaded with cell sheets and bone morphogenetic protein‐2 in the ligament and bone compartment respectively prior to ectopic implantation into athymic rats. The histology demonstrates rapid tissue infiltration, high vascularization, and more importantly the maintenance of the compartmentalization as bone formation remains localized to the bone compartment despite the porous interface. The cells in the ligament compartment become preferentially aligned, and this proof‐of‐concept study demonstrates that the BLB can provide sufficient compartmentalization and fiber guiding properties necessary for the regeneration of the dorsal SLIL.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Additively Manufactured Multiphasic Bone–Ligament–Bone Scaffold for Scapholunate Interosseous Ligament Reconstruction

Vaquette

Bindra

Baldwin

et al. 2019

Adv Healthcare Materials

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show abstract

“…Dorsal SLIL has generally been believed to be the primary restraint amongst the 3 components of SLIL as the thickness and failure force of dorsal SLIL are more than twice that of volar SLIL, while the proximal SLIL is even thinner and fibrocartilaginous . Comparatively, the relative significance of volar SLIL is controversial . The results of our study indicate that the contribution of volar SLIL to SL stability could be important because the variability in SL gap prediction amongst the reconstruction techniques simulated was significantly greater on the volar side compared to the dorsal side.…”

Section: Discussionmentioning

confidence: 78%

Analysis of tenodesis techniques for treatment of scapholunate instability using the finite element method

Alonso-Rasgado

Zhang

Jimenez-Cruz

et al. 2017

Numer Methods Biomed Eng

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Chronic scapholunate ligament (SL) injury is a common disorder affecting the wrist. Despite advances in surgical techniques used to treat this injury, SL gap re-emergence may occur postoperatively. This paper presents an investigation into the performance of the Corella, schapolunate axis (SLAM), and modified Brunelli tenodesis (MBT) surgical reconstruction techniques used to treat scapholunate instability. Finite element (FE) models were used to undertake virtual surgery, and the resulting scapholunate (SL) gap and angle obtained using the 3 techniques were compared. The Corella technique was found to achieve the SL gap and angle closest to the intact (ligament) wrist, restoring SL gap and angle to within 5.6% and 0.6%, respectively. The MBT method resulted in an SL gap least close to the intact. The results of our study indicate that the contribution of volar scapholunate interosseous ligament to scapholunate stability could be important.

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Histological characterization of the human scapholunate ligament

Chato‐Astrain,

Roda,

Carriel

et al. 2023

Microscopy Res & Technique

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The scapholunate interosseous ligament (SLIL) plays a fundamental role in stabilizing the wrist bones, and its disruption is a frequent cause of wrist arthrosis and disfunction. Traditionally, this structure is considered to be a variety of fibrocartilaginous tissue and consists of three regions: dorsal, membranous and palmar. Despite its functional relevance, the exact composition of the human SLIL is not well understood. In the present work, we have analyzed the human SLIL and control tissues from the human hand using an array of histological, histochemical and immunohistochemical methods to characterize each region of this structure. Results reveal that the SLIL is heterogeneous, and each region can be subdivided in two zones that are histologically different to the other zones. Analysis of collagen and elastic fibers, and several proteoglycans, glycoproteins and glycosaminoglycans confirmed that the different regions can be subdivided in two zones that have their own structure and composition. In general, all parts of the SLIL resemble the histological structure of the control articular cartilage, especially the first part of the membranous region (zone M1). Cells showing a chondrocyte‐like phenotype as determined by S100 were more abundant in M1, whereas the zone containing more CD73‐positive stem cells was D2. These results confirm the heterogeneity of the human SLIL and could contribute to explain why certain zones of this structure are more prone to structural damage and why other zones have specific regeneration potential.Research HighlightsApplication of an array of histological analysis methods allowed us to demonstrate that the human scapholunate ligament is heterogeneous and consists of at least six different regions sharing similarities with the human cartilage, ligament and other anatomical structures.

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Scapholunate Interosseous Ligament Anatomy and Biomechanics

Cited by 59 publications

References 63 publications

Additively Manufactured Multiphasic Bone–Ligament–Bone Scaffold for Scapholunate Interosseous Ligament Reconstruction

Additively Manufactured Multiphasic Bone–Ligament–Bone Scaffold for Scapholunate Interosseous Ligament Reconstruction

Analysis of tenodesis techniques for treatment of scapholunate instability using the finite element method

Histological characterization of the human scapholunate ligament

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