Form and Function of Radioulnar Articular Disc

Mohiuddin, A.; Janjua, Muhammad Zahoor

doi:10.1016/s0072-968x(82)80044-2

Cited by 17 publications

(9 citation statements)

References 2 publications

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“…Two histologically different parts on the central and peripheral side of the disc have been described (Mayfield et al. 1976; Mohiuddin & Janjua, 1982; García‐Elias & Domenech‐Mateu, 1987; Hogikyan & Louis, 1992). The distal side of the disc develops as fibrocartilage (Chidgey et al.…”

Section: Discussionmentioning

confidence: 99%

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Development and morphogenesis of human wrist joint during embryonic and early fetal period

et al. 2012

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The development of the human wrist joint has been studied widely, with the main focus on carpal chondrogenesis, ligaments and triangular fibrocartilage. However, there are some discrepancies concerning the origin and morphogenetic time-table of these structures, including nerves, muscles and vascular elements. For this study we used serial sections of 57 human embryonic (n = 30) and fetal (n = 27) specimens from O'Rahilly stages 17-23 and 9-14 weeks, respectively. The following phases in carpal morphogenesis have been established: undifferentiated mesenchyme (stage 17), condensated mesenchyme (stages 18 and 19), pre-chondrogenic (stages 19 and 20) and chondrogenic (stages 21 and over). Carpal chondrification and osteogenic processes are similar, starting with capitate and hamate (stage 19) and ending with pisiform (stage 22). In week 14, a vascular bud penetrates into the lunate cartilaginous mold, early sign of the osteogenic process that will be completed after birth. In stage 18, median, ulnar and radial nerves and thenar eminence appear in the hand plate. In stage 21, there are indications of the interosseous muscles, and in stage 22 flexor digitorum superficialis, flexor digitorum profundus and lumbrical muscles, transverse carpal ligament and collateral ligaments emerge. In stage 23, the articular disc, radiocarpal and ulnocarpal ligaments and deep palmar arterial arch become visible. Radiate carpal and interosseous ligaments appear in week 9, and in week 10, dorsal radiocarpal ligament and articular capsule are evident. Finally, synovial membrane is observed in week 13. We have performed a complete analysis of the morphogenesis of the structures of the human wrist joint. Our results present new data on nervous and arterial elements and provide the basis for further investigations on anatomical pathology, comparative morphology and evolutionary anthropology.

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Section: Discussionmentioning

confidence: 99%

“…2007). Its morphology and development (Palmer & Werner, 1981; Mohiuddin & Janjua, 1982; García‐Elias & Domenech‐Mateu, 1987; Mérida‐Velasco et al. 1996), histological fine structure (Benjamin et al.…”

Section: Introductionmentioning

confidence: 99%

Development and morphogenesis of human wrist joint during embryonic and early fetal period

et al. 2012

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“…However, frontal sections reveal that the tissue in question has not a longitudinal fibers orientation (as found in strong ligaments) but an irregular reticular network of fibers implying a high degree of elasticity. The other liga ment which we couldn't find, the so-called volar radio ulnar interosseous ligament, has been described as a col lection of fibers originating from the ulnar styloid and tak ing a lateral course to the insertion on the anterior edge of the radius [Palmer andWerner, 1981: Mohiuddin andZanjua. 1982].…”

Section: Discussionmentioning

confidence: 99%

The Articular Disc of the Wrist. Limits and Relations

García-Elias

Domènech-Mateu

1987

Cells Tissues Organs

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The relationship between the discus articularis and its contiguous structures has been analyzed in 18 serially sectioned fetal hands. From this study, it can be concluded that these elements do not seem to be an extensive fibrous system emerging from the radius and reaching the metacarpal V, as it has been said, but a complex of clearly differentiated structures, of which further morphological details are given.

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“…The only ligamentous structure to receive much attention is apparently the articular disc of the wrist joint (Kauer, 1968(Kauer, , 1975Palmer and Werner, 1981;Mohiuddin and Zanjua, 1982;Garcia-Elias and Domenech-Mateu, 1987), which has been described as a fibrocartilaginous structure extending from the medial edge of the lower end of the radius to the ulnar styloid 0 1996 WILEY-LISS, INC.…”

Section: Introductionmentioning

confidence: 99%

Development of the human wrist joint ligaments

et al. 1996

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Background Many studies have been published on the development of the human wrist joint, but scant attention has been given to the development of the wrist joint ligaments. Moreover, traditional description of wrist anatomy usually depict only the superficial capsular fibers of the wrist joint. The only ligamentous structure to receive much attention is the articular disc of the wrist joint, which has been described as a fibro‐cartilaginous structure extending from the medial edge of the lower end of the radius to the ulnar styloid process. Methods In the present report, we synthesize our observations in the wrist joint ligaments in 35 serially sectioned human embryonic and fetal hands (16 embryos and 19 fetuses). Results The interosseous intercarpal ligaments are organized from the mesenchyme, which, until O'Rahilly's stage 23, fills the intercarpal spaces. These ligaments are not individually distinguishable until the 9th week of development. The collateral ligaments begin to form in O'Rahilly's stage 22 and are completely formed by the end of week 10. The palmar radiocarpal and ulnocarpal ligaments (beginning with the palmar radiocarpal ligament) begin to form in O'Rahilly's stage 23 and are fully developed by the end of week 10. At this time, development of the dorsal radiocarpal ligament begins; this process is completed by the end of week 13. The articular disc which is initially formed of a single element, first appears in O'Rahilly's stage 23 and its organization is completed at week 10 of development. Conclusions We establish the morphogenetic time‐table of the wrist joint ligaments. Our descriptive findings may help explain carpal motion and the origin of wrist injuries. © 1996 Wiley‐Liss, Inc.

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Form and Function of Radioulnar Articular Disc

Cited by 17 publications

References 2 publications

Development and morphogenesis of human wrist joint during embryonic and early fetal period

Development and morphogenesis of human wrist joint during embryonic and early fetal period

The Articular Disc of the Wrist. Limits and Relations

Development of the human wrist joint ligaments

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