Thickness distribution of the subchondral mineralization zone of the trochlear notch and its correlation with the cartilage thickness: an expression of functional adaptation to mechanical stress acting on the humeroulnar joint?

The Anatomical Record
S MilzR Putz

Abstract

The thickness of cortical bone and the density of cancellous bone have been shown to reflect local mechanical stress. However, little is known whether this also applies to the thickness of the subchondral mineralization zone (SMZ). Since the humeroulnar joint may be regarded as a model of bicentric load transmission, we examined the thickness distribution of the SMZ of the trochlear notch. Fourteen trochlear notches were examined. Eight joint surfaces of these ulnae were completely divided, 4 incompletely subdivided, and 2 remained undivided. After embedding, sagittal sections were prepared. The thickness distributions of SMZ and cartilage were measured, graphically reconstructed, and the correlation between the two calculated for each joint. The thickness of the SMZ lies between 120 and 1,400 microns. Regular patterns were observed with ventral and dorsal maxima, with close correlations between the type of joint and the thickness distribution of the SMZ. The cartilage thickness varied between 350 and 2,000 microns. The pattern of cartilage thickness differed significantly from that of the SMZ. The mean correlation coefficient between SMZ and cartilage thickness was 0.3. The SMZ thickness depends upon the type of joint and appe...Continue Reading

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Citations

Apr 2, 2011·American Journal of Veterinary Research·Mark Jan DickomeitJohann Maierl
Jun 15, 2011·Magnetic Resonance Imaging Clinics of North America·Humberto G Rosas, Michael J Tuite
Sep 23, 2014·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Anik ChevrierMichael D Buschmann
Nov 24, 2016·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Sebastian HoechelMagdalena Müller-Gerbl
Jun 29, 2012·European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes·H AnetzbergerM Müller-Gerbl
Mar 24, 2007·Equine Veterinary Journal·M V BranchA E Goodship
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Feb 2, 2010·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Henning MadryMagdalena Mueller-Gerbl
Mar 3, 2007·Journal of Applied Physiology·R C MurrayA E Goodship
Sep 21, 2013·Surgical and Radiologic Anatomy : SRA·Fabian MuellerMagdalena Müller-Gerbl
Sep 2, 2019·Surgical and Radiologic Anatomy : SRA·Trifon TotlisKonstantinos Natsis
Jan 10, 2002·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·R C MurrayA E Goodship
May 23, 2006·Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists·Margary Lockard

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