PMID- 23843150 OWN - NLM STAT- MEDLINE DCOM- 20131028 LR - 20211021 IS - 1554-527X (Electronic) IS - 0736-0266 (Print) IS - 0736-0266 (Linking) VI - 31 IP - 10 DP - 2013 Oct TI - Replication of chronic abnormal cartilage loading by medial meniscus destabilization for modeling osteoarthritis in the rabbit knee in vivo. PG - 1555-60 LID - 10.1002/jor.22393 [doi] AB - Medial meniscus destabilization (MMD) is a surgical insult technique for modeling osteoarthritis (OA) by replicating chronic abnormal cartilage loading in animal joints in vivo. The present study aimed to characterize the immediate biomechanical effects (ex vivo) and short-term histological consequences (in vivo) of MMD in the rabbit knee. In a compressive loading test, contact stress distribution in the medial compartment was measured in eight cadaver rabbit knees, initially with all major joint structures uninjured (Baseline), after MMD, and finally after total medial meniscectomy (TMM). Similarly, the effects on sagittal joint stability were determined in an anterior-posterior drawer test. These biomechanical (ex vivo) data indicated that both MMD and TMM caused significant (p < 0.001), distinct (>1.5-fold) elevation of peak local contact stress in the medial compartment, while leaving whole-joint stability nearly unchanged. Histological consequences in vivo were assessed in a short-term (8-week) survival series of MMD or TMM (five animals for each group), and both caused moderate cartilage degeneration in the medial compartment. The MMD insult, which is feasible through posterior arthrotomy alone, is as effective as TMM for modeling injurious-level chronic abnormal cartilage loading in the rabbit knee medial compartment in vivo, while minimizing potential confounding effects from whole-joint instability. CI - Copyright (c) 2013 Orthopaedic Research Society. FAU - Arunakul, Marut AU - Arunakul M AD - Department of Orthopaedics and Rehabilitation, Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, Iowa, 52242-1100, USA. FAU - Tochigi, Yuki AU - Tochigi Y FAU - Goetz, Jessica E AU - Goetz JE FAU - Diestelmeier, Bryce W AU - Diestelmeier BW FAU - Heiner, Anneliese D AU - Heiner AD FAU - Rudert, James AU - Rudert J FAU - Fredericks, Douglas C AU - Fredericks DC FAU - Brown, Thomas D AU - Brown TD FAU - McKinley, Todd O AU - McKinley TO LA - eng GR - P50 AR055533/AR/NIAMS NIH HHS/United States GR - P50AR055533/AR/NIAMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20130710 PL - United States TA - J Orthop Res JT - Journal of orthopaedic research : official publication of the Orthopaedic Research Society JID - 8404726 SB - IM MH - Animals MH - Biomechanical Phenomena/physiology MH - Chronic Disease MH - *Disease Models, Animal MH - Joint Instability/pathology/physiopathology/surgery MH - Menisci, Tibial/pathology/*physiopathology/surgery MH - Osteoarthritis, Knee/pathology/*physiopathology/surgery MH - *Rabbits MH - Stifle/pathology/physiopathology/surgery MH - Stress, Mechanical MH - Tibia/pathology/physiopathology MH - Weight-Bearing/*physiology PMC - PMC5113956 MID - NIHMS697474 OTO - NOTNLM OT - contact stress OT - meniscus OT - post-traumatic osteoarthritis OT - rabbit knee OT - survival animal model EDAT- 2013/07/12 06:00 MHDA- 2013/10/29 06:00 PMCR- 2016/11/17 CRDT- 2013/07/12 06:00 PHST- 2012/10/16 00:00 [received] PHST- 2013/04/29 00:00 [accepted] PHST- 2013/07/12 06:00 [entrez] PHST- 2013/07/12 06:00 [pubmed] PHST- 2013/10/29 06:00 [medline] PHST- 2016/11/17 00:00 [pmc-release] AID - 10.1002/jor.22393 [doi] PST - ppublish SO - J Orthop Res. 2013 Oct;31(10):1555-60. doi: 10.1002/jor.22393. Epub 2013 Jul 10.