The scaphotrapezio-trapezoidal joint. Part 1: An antomic and radiographic study

Moritomo, Hisao; Viegas, Steven F.; Nakamura, Koji; DaSilva, Manuel F.; Patterson, Rita M.

doi:10.1053/jhsu.2000.4582

Cited by 109 publications

(58 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The DRC was cut first, followed by the DIC, and then the SLIL. The following results pertain to the kinematic changes that were statistically significant during wrist flexionextension (Table 5; Figures 5,6; Appendix Figures A7, A8). Dividing the DRC alone caused a slight increase in lunate radial deviation in wrist flexion.…”

Section: Group 2 Sequence Of Ligament Sectioningmentioning

confidence: 94%

Biomechanical Evaluation of the Ligamentous Stabilizers of the Scaphoid and Lunate: Part III

Short

Werner

Green

et al. 2007

The Journal of Hand Surgery

201

159

View full text Add to dashboard Cite

Purpose: This study continued our previous investigations of the ligaments stabilizing the scaphoid and lunate in which we examined the scapholunate interosseous ligament, the radioscaphocapitate, and the scaphotrapezial ligament. In this current study, we examined the effects of sectioning the dorsal radiocarpal ligament, dorsal intercarpal ligament, scapholunate interosseous ligament, radioscaphocapitate, and scaphotrapezial ligaments. In the current study, the scapholunate interosseous ligament, radioscaphocapitate, and scaphotrapezial ligaments were sectioned in a different order than performed previously.Methods: Three sets of 8 cadaver wrists were tested in a wrist joint motion simulator. In each set of wrists, only 3 of the 5 ligaments were cut in specific sequences. Each wrist was moved in continuous cycles of flexion-extension and radial-ulnar deviation. Kinematic data for the scaphoid and lunate were recorded for each wrist in the intact state, after the 3 ligaments were sectioned in various sequences and after the wrist was moved through 1,000 cycles of motion.Results: Dividing the dorsal intercarpal or scaphotrapezial ligaments did not alter the motion of the scaphoid or lunate. Dividing the dorsal radiocarpal ligament alone caused a slight statistical increase in lunate radial deviation. Dividing the scapholunate interosseous ligament after first dividing the dorsal intercarpal, dorsal radiocarpal, or scaphotrapezial ligaments caused large increases in scaphoid flexion and lunate extension. Conclusions:Based on these findings, we concluded that the scapholunate interosseous ligament is the primary stabilizer and that the other ligaments are secondary stabilizers of the scapholunate articulation. Dividing the dorsal radiocarpal, dorsal intercarpal, or scaphotrapezial ligaments after cutting the scapholunate interosseous ligament produces further changes in scapholunate instability or results in changes in the kinematics for a larger portion of the wrist motion cycle. KeywordsScapholunate instability; wrist; biomechanics Treatment of soft tissue injuries of the wrist is clinically frustrating. The diagnosis of which specific ligaments are injured is difficult. The most common instability problem occurs at the scapholunate (SL) joint. Many surgical procedures have been advocated, but the long-term outcomes of these procedures are undetermined. One of the primary difficulties in understanding this problem is that the specific function of the carpal ligaments is not known. It is important to define the function and relative importance of these structures to develop better surgical treatments for the injured SL joint. This biomechanical study is one of a series of experiments that evaluates the importance of ligaments that attach to the scaphoid or lunate. 1,2 According to previous anatomical studies 3-9 there are 7 ligaments that crossover or attach to the scaphoid or lunate. These are the scapholunate interosseous ligament (SLIL), the radioscaphocapitate ligament (RSC), the long radiolunate liga...

show abstract

Section: Group 2 Sequence Of Ligament Sectioningmentioning

confidence: 94%

Biomechanical Evaluation of the Ligamentous Stabilizers of the Scaphoid and Lunate: Part III

Short

Werner

Green

et al. 2007

The Journal of Hand Surgery

201

159

View full text Add to dashboard Cite

show abstract

“…Moritomo et al, 2000a, b;Kauer, 1986). It has been suggested that this single path of motion lies in an ulnar-flexion to radial-extension direction parallel to the trapezoid and trapezium articular surface, and that an anatomical feature, the interfacet ridge, further defines this border and articulation path (Kauer, 1986;Moritomo et al, 2000b). Additionally, a recent study proposed that the single axis of rotation, about which the trapezoid and trapezium rotate in all directions of wrist motion, passes through the origin of the scapho-trapezium ligament on the scaphoid (Moritomo et al, 2000a).…”

Section: Introductionmentioning

confidence: 99%

In vivo motion of the scaphotrapezio–trapezoidal (STT) joint

Sonenblum

Crisco

Kang

et al. 2004

Journal of Biomechanics

View full text Add to dashboard Cite

“…Knowledge of variations of the healthy bone shapes is essential for diagnosing wrist pathologies, e.g. arthritis (Moritomo et al, 2000) or fractures (Compson et al, 1994). This is important in order to distinguish the pathology from a fysiological shape variation.…”

Section: Introductionmentioning

confidence: 99%

“…Studies of the anatomical variations currently focus on qualitative descriptions, such as visual classifications in different bone shapes (Moritomo et al, 2000;Antuñ a-Zapico, 1966;Watson et al, 1996;Viegas et al, 1990) or quantitative measures that describe global shape characteristics, such as distances between anatomical landmarks (Compson et al, 1994;Ceri et al, 2004;Patterson et al, 1995) or volume differences (Crisco et al, 2005;Patterson et al, 1995). Previous studies describe shape variations based on radiographs, e.g.…”

Section: Introductionmentioning

confidence: 99%