Carpal Ligament Anatomy and Biomechanics

Pulos, Nicholas; Bozentka, David J.

doi:10.1016/j.hcl.2015.04.007

Cited by 14 publications

(11 citation statements)

References 28 publications

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“…The extrinsic ligamentous apparatus (Table 1) courses between the carpal bones and the radius or the metacarpals. In carpal kinematics, the functional role of the extrinsic wrist ligaments is still poorly understood [15,25]. The extrinsic wrist ligaments include the dorsal intercarpal (DIC) ligament, dorsal radiocarpal (DRC) ligament, radioscaphocapitate (RSC) ligament, long radiolunate (LRL) ligament, short radiolunate (SRL) ligament, ulnolunate, and ulnocapitate ligament [15].…”

Section: Extrinsic Carpal Ligamentsmentioning

confidence: 99%

Anatomy, Biomechanics, and Loads of the Wrist Joint

Eschweiler

Quack

et al. 2022

Life

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The wrist is by far the most differentiated section of the musculoskeletal system. The spectrum of wrist injuries ranges from minor injuries to complex traumas with simultaneous loss of functions, resulting in enormous economic costs. A proper understanding of the anatomy and biomechanics is essential for effective treatment, whether conservative or surgical; this applies to the wrist no less than to other parts of the human body. Here; information on the wrist anatomy; kinematics; and biomechanical behavior is presented, commencing with a brief explanation of the structure of its hard and soft tissues. Eight carpal bones in combination with two forearm bones (radius and ulna) construct the wrist joint. The motion of the wrist joint is initiated by the muscles of the forearm, and strong and short ligaments ensure the stability of the wrist. All of these components are essential to bringing functions to the wrist joint because these structures allow wrist mobility and sustainability. In addition, the kinematics of the wrist joint is presented and different biomechanical model approaches. The therapeutic (surgical) restoration of the balance between the load–bearing capacity and the actual stress on a joint is the prerequisite for a lifelong and trouble-free function of a joint. Regarding the complex clinical problems, however, a valid biomechanical wrist joint model would be necessary as assistance, to improve the success of systematized therapies based on computer–aided model–based planning and intervention.

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Section: Extrinsic Carpal Ligamentsmentioning

confidence: 99%

Anatomy, Biomechanics, and Loads of the Wrist Joint

Eschweiler

Quack

et al. 2022

Life

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“…The ligaments originating from the triquetrum are the triquetrohamate and triquetrocapitate, which contribute to forming the ulnar arm of the arcuate ligament. The ligaments originating from the scaphoid are the scaphocapitate and scaphotrapezial ligaments; they stabilize the scaphotrapeziotrapezoid (STT) joint and scaphoid and are also important secondary stabilizers of the SL articulation [26,34].…”

Section: ③ Palmar Midcarpal Ligamentsmentioning

confidence: 99%

“…The bones of the distal carpal row have little intercarpal motion as a result of ligamentous and bony constraints [28,34]. Three distal interosseous ligaments connect the trapezium, trapezoid, capitate, and hamate.…”

Section: ④ Distal Carpal Row Interosseous Ligamentsmentioning

confidence: 99%

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Trans-scaphoid Perilunate Fracture Dislocation

Kim¹,

Oh²,

Koh³

et al. 2021

Arch Hand Microsurg

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Trans-scaphoid perilunate fracture dislocations, which account for more than half of total cases of perilunate injuries, are common in young patients and occur as a result of high-energy injuries, and improper management can impair wrist alignment and function. Understanding the related wrist anatomy and pathomechanics may help surgeons evaluate and diagnose patients. Early operation to reduce and fix the injuries should be considered to achieve optimal clinical and radiological outcomes. In this review article, we present an overview of wrist pathoanatomy, the pathomechanics of trans-scaphoid perilunate fracture dislocations, operative treatment options including an arthroscopic procedure, and reported clinical and radiological outcomes.

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“…This difficulty arises from the complexity of the joint; the fact that it is composed of multiple joints with complex ligamentous structures, and the relative importance of the ligamentous structures in the wrist to the biomechanics and function of the joint. 4 As in other joints, a better understanding of the structure and function of the wrist will enhance our ability to diagnose and treat wrist conditions.…”

mentioning

confidence: 99%

Distinct Wrist Patterns Founded on Measurements in Plain Radiographs

et al. 2018

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Background In joints, structure dictates function and consequently pathology. Interpreting wrist structure is complicated by the existence of multiple joints and variability in bone shapes and anatomical patterns in the wrist. Previous studies evaluated lunate and capitate shape in the midcarpal joint, and two distinct patterns have been identified. Purpose Our purpose was to further characterize the two wrist patterns in normal wrist radiographs using measurements of joint contact and position. Our hypothesis was that we will find significant differences between the two distinct anatomical patterns. Patients and Methods A database of 172 normal adult wrist posteroanterior (PA) radiographs was evaluated for radial inclination, height, length, ulnar variance, volar tilt, radial-styloid-scaphoid distance, and lunate and capitate types. We measured and calculated percent of capitate facet that articulates with the lunate, scapholunate ligament, scaphoid, and trapezoid. These values were compared between the wrist types and whole population. Results Type-1 wrists (lunate type-1 and spherical proximal capitate) were positively associated with a longer facet between capitate and distal lunate (p = 0.01), capitate and base of middle metacarpal (p = 0.004), and shorter facet between the capitate and hamate (p = 0.004). The odds ratio of having a type-1 wrist when the interface between the capitate and lunate measures >8.5 mm is 2.71 (confidence interval [CI] 1.07, 6.87) and when the line between the capitate and the base of middle metacarpal >9.5 mm is 3.5 (CI 1.38, 9.03). Conclusion We characterized the two-wrist patterns using intracarpal measurements. Translating these differences into three-dimensional contact areas may help in the understanding of biomechanical transfer of forces through the wrist. Level of Evidence This is a Level II, diagnostic study.

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Carpal Ligament Anatomy and Biomechanics

Cited by 14 publications

References 28 publications

Anatomy, Biomechanics, and Loads of the Wrist Joint

Anatomy, Biomechanics, and Loads of the Wrist Joint

Trans-scaphoid Perilunate Fracture Dislocation

Distinct Wrist Patterns Founded on Measurements in Plain Radiographs

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