caa a22 4500 463200020 CHVBK 20180405153109.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s00276-007-0188-2 doi (NATIONALLICENCE)springer-10.1007/s00276-007-0188-2 Histologic anatomy of the lesser metatarsophalangeal joint plantar plate [Elektronische Daten] [J. Gregg, P. Marks, M. Silberstein, T. Schneider, J. Kerr] The plantar plate is the fibrocartilaginous structure that supports the ball of the foot, withstanding considerable compressive and tensile forces. This study describes the morphology of the plantar plate in order to understand its function and the pathologic disorders associated with it. Eight lesser metatarsophalangeal joint plantar plates from three soft-embalmed cadavers (74-92years, two males, one female), and eight lesser metatarsophalangeal joint plantar plates from a fresh cadaver (19-year-old male) were obtained for histology assessment. Paraffin sections (10μm) in the longitudinal and transverse planes were analyzed with bright-field and polarized light microscopy. The central plantar plate collagen bundles run in the longitudinal plane with varying degrees of undulation. The plantar plate borders run transversely and merge with collateral ligaments and the deep transverse intermetatarsal ligament. Bright-field microscopic evaluation shows the plantar aspect of the plantar plate becomes ligament-like the further distally it tapers, containing fewer chondrocytes, and a greater abundance of fibroblasts. The enthesis reveals longitudinal and interwoven collagen bundles entering the proximal phalanx with multiple interdigitations. Longer interdigitations centrally compared to the dorsal and plantar aspects suggest that the central fibers experience the greatest loads. Springer-Verlag, 2007 Fibrocartilage nationallicence Enthesis nationallicence Plantar plate nationallicence Tidemark nationallicence Forefoot nationallicence Gregg J. Department of Medical Imaging, Faculty of Medicine, Monash University, Clayton, VIC, Australia aut Marks P. Symbion Health, The Avenue Hospital, Windsor, VIC, Australia aut Silberstein M. Department of Medical Imaging, Faculty of Medicine, Monash University, Clayton, VIC, Australia aut Schneider T. Melbourne Orthopaedic Group, Windsor, VIC, Australia aut Kerr J. Department of Anatomy and Cell Biology, Faculty of Medicine, Monash University, Clayton, VIC, Australia aut Surgical and Radiologic Anatomy Springer-Verlag 29/2(2007-03-01), 141-147 0930-1038 29:2<141 2007 29 276 https://doi.org/10.1007/s00276-007-0188-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00276-007-0188-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gregg J. Department of Medical Imaging, Faculty of Medicine, Monash University, Clayton, VIC, Australia aut NATIONALLICENCE 700 1- Marks P. Symbion Health, The Avenue Hospital, Windsor, VIC, Australia aut NATIONALLICENCE 700 1- Silberstein M. Department of Medical Imaging, Faculty of Medicine, Monash University, Clayton, VIC, Australia aut NATIONALLICENCE 700 1- Schneider T. Melbourne Orthopaedic Group, Windsor, VIC, Australia aut NATIONALLICENCE 700 1- Kerr J. Department of Anatomy and Cell Biology, Faculty of Medicine, Monash University, Clayton, VIC, Australia aut NATIONALLICENCE 773 0- Surgical and Radiologic Anatomy Springer-Verlag 29/2(2007-03-01), 141-147 0930-1038 29:2<141 2007 29 276 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer