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meniscal allograft

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https://www.readbyqxmd.com/read/29899552/the-radiated-deep-frozen-xenogenic-meniscal-tissue-regenerated-the-total-meniscus-with-chondroprotection
#1
Dong Jiang, Zheng-Zheng Zhang, Feng Zhao, Shao-Jie Wang, Yan-Song Qi, Li-Heng Zhao, Ji-Ying Zhang, Jia-Kuo Yu
Meniscal allograft transplantation yields good and excellent results but is limited by donor availability. The purpose of the study was to evaluate the effectiveness of radiated deep-frozen xenogenic meniscal tissue (RDF-X) as an alternative graft choice in meniscal transplantation. The xenogenic meniscal tissues were harvested from the inner 1/3 part of the porcine meniscus and then irradiated and deeply frozen. The medial menisci of rabbits were replaced by the RDF-X. Meniscal allograft transplantation, meniscectomy and sham operation served as controls...
June 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29804609/editorial-commentary-is-the-capsulodesis-the-solution-to-reduce-graft-extrusion-in-meniscal-allograft-transplantation
#2
EDITORIAL
Sang Hak Lee
The causes of graft extrusion after lateral meniscus allograft transplantation seem to be a multifactorial problem. A recent study shows that the lateral capsulodesis technique could result in better results relative to the degree of meniscal extrusion compared with the bone-bridge fixation technique. Long-term comparative clinical studies are needed to confirm the efficacy of this procedure.
June 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29804608/editorial-commentary-meniscal-allograft-transplantation-still-effective-with-poor-cartilage-but-much-better-with-good-cartilage-better-done-earlier
#3
EDITORIAL
Jong-Min Kim, Bum-Sik Lee, Seong-Il Bin
Meniscal allograft transplantation (MAT) is an established treatment for a symptomatic, meniscus-deficient knee. It is well known that MAT is effective in patients with good cartilage even in the early era of this procedure. The role of MAT in arthritic knees is getting more and more clear with increasing evidence over the last decade. Now we are able to expand our surgical indication to arthritic patients and provide them with individualized explanation for outcome and survival.
June 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29796401/learning-from-failure-in-cartilage-repair-surgery-an-analysis-of-the-mode-of-failure-of-primary-procedures-in-consecutive-cases-at-a-tertiary-referral-center
#4
Aaron J Krych, Mario Hevesi, Vishal S Desai, Christopher L Camp, Michael J Stuart, Daniel B F Saris
Background: As the number of cartilage restoration procedures is increasing, so is the number of revision procedures. However, there remains limited information on the reasons for failure of primary cartilage restoration procedures. Purpose: To determine the common modes of failure in primary cartilage restoration procedures to improve surgical decision making and patient outcomes. Study Design: Case series; Level of evidence, 4. Methods: Patients who presented for revision after failed cartilage repair surgery were evaluated for factors contributing to failure of the primary procedure...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29772990/the-effects-of-meniscal-geometry-on-susceptibility-for-meniscal-and-acl-injury-in-non-arthritic-knees-a-retrospective-case-control-study
#5
Alexander Tejani, Qais Naziri, Preston W Grieco, Robert Pivec, Damon Greene, Bhaveen V Kapadia, Dipal Chatterjee, William P Urban
Prior studies have not found significant differences in meniscal parameters between patients with meniscal and ligamentous injury and those without. The purpose of this study was to determine whether such relationships exist. Clinical records and magnetic resonance images of three subject groups were reviewed. Group 1 solely had meniscal tears (medial/lateral), Group 2 had meniscal tears with concurrent ACL tears, and Group 3 had healthy knees. The mean age of subjects included was 35.9 years (range 8.2-72...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29730213/comparative-matched-pair-analysis-of-keyhole-bone-plug-technique-versus-arthroscopic-assisted-pullout-suture-technique-for-lateral-meniscal-allograft-transplantation
#6
Yong Gon Koh, Yong Sang Kim, Oh Ryong Kwon, Dong Beom Heo, Dae Hyun Tak
PURPOSE: To compare the clinical outcomes and meniscal extrusion measured by magnetic resonance imaging (MRI) between the keyhole bone-plug technique and arthroscopic-assisted pullout suture technique in lateral meniscal allograft transplantation (MAT). METHODS: Between October 2009 and February 2015, patients who underwent lateral MAT were retrospectively reviewed. The inclusion criteria were patients with symptomatic knees that had undergone total or subtotal meniscectomy who were treated with lateral MAT with a minimum follow-up period of 2 years...
May 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29690926/clinical-and-radiologic-outcomes-after-a-modified-bone-plug-technique-with-anatomical-meniscal-root-reinsertion-for-meniscal-allograft-transplantation-and-a-minimum-18-month-follow-up
#7
Shiyou Ren, Xintao Zhang, Tian You, Xiaocheng Jiang, Dadi Jin, Wentao Zhang
OBJECTIVE: To evaluate the clinical and radiologic outcomes of meniscal allograft transplantation (MAT) using a modified bone plug technique. METHODS: We conducted a retrospective single-center study of 73 patients who underwent MAT between January 2007 and December 2013. The International Knee Documentation Committee (IKDC) score, Lysholm score, Tegner score, visual analogue scale (VAS), and physical examinations were retrospectively reviewed to measure clinical outcomes after MAT, and questionnaires regarding activity and factors were analyzed...
April 24, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29573933/capsulodesis-versus-bone-trough-technique-in-lateral-meniscal-allograft-transplantation-graft-extrusion-and-functional-results
#8
Angel Masferrer-Pino, Joan C Monllau, Maximiliano Ibáñez, Juan I Erquicia, Xavier Pelfort, Pablo E Gelber
PURPOSE: To compare the radiographic results (in terms of graft extrusion) and the functional results of lateral meniscus allograft transplantations (MAT) performed with a bony fixation technique or with a soft tissue fixation technique after capsulodesis. METHODS: A prospective series of 29 consecutive lateral MAT was analyzed. The inclusion criterion for MAT was lateral joint line pain due to a previous meniscectomy. Malalignment, patients who had an Ahlback grade greater than II, and patients with a body mass index over 30 were considered as the exclusion criterion to prevent confounding results...
June 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29556892/successful-anterior-cruciate-ligament-reconstruction-and-meniscal-repair-in-osteogenesis-imperfecta
#9
Jae-Young Park, Tae-Joon Cho, Myung Chul Lee, Hyuk-Soo Han
A case of anterior cruciate ligament (ACL) reconstruction with meniscal repair in an osteogenesis imperfecta patient is reported. A 24-year-old female with osteogenesis imperfecta type 1a suffered from a valgus extension injury resulting in tear of ACL and medial meniscus. She underwent an arthroscopic-assisted ACL reconstruction and medial meniscus repair. Meniscal tear at the menisco-capsular junction of the posterior horn of medial meniscus was repaired with three absorbable sutures via inside-out technique...
March 20, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29552463/bone-trough-lateral-meniscal-allograft-transplantation-the-tapered-teardrop-technique
#10
Michael A Zacchilli, Amos Z Dai, Eric J Strauss, Laith M Jazrawi, Robert J Meislin
The meniscus plays a vital role in knee biomechanics, and its physical absence or functional incompetence (e.g., irreparable root or radial tear) leads to unacceptably high rates of joint degeneration in affected populations. Meniscal allograft transplantation has been used successfully to treat patients with postmeniscectomy syndrome, and there is early laboratory and radiographic evidence hinting at a potential prophylactic role in preventing joint degeneration. We present a technique for lateral meniscal allograft transplantation using the CONMED Meniscal Allograft Transplantation system...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29514370/contemporary-surgical-trends-in-the-management-of-symptomatic-meniscal-tears-among-united-states-military-servicemembers-from-2010-to-2015
#11
Timothy B Pekari, Kevin C Wang, Eric J Cotter, Nicholas Kusnezov, Brian R Waterman
The purpose of this investigation is to report on trends over time in the treatment of meniscal pathology among military orthopaedic surgeons, as well as to evaluate the impact of patient demographics and concomitant procedure on the type of meniscal procedure performed. We performed a retrospective analysis of all active-duty United States military servicemembers who underwent a meniscal procedure from 2010 to 2015 within the Military Health System. Patient demographics and surgical variables were extracted from the electronic medical record...
March 7, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29482862/meniscal-allograft-transplantation-the-effect-of-cartilage-status-on-survivorship-and-clinical-outcome
#12
Ahmed Mahmoud, James Young, Joanne Bullock-Saxton, Peter Myers
PURPOSE: To evaluate the survivorship of meniscal allograft transplantations (MATs), their clinical outcomes, and to compare the effect of perioperative cartilage status on survivorship. METHOD: A consecutive series of MATs with a minimum postsurgical time of 4 years were included from a prospectively collected database from 2001 to 2015. Mechanical failure was defined as transplant removal or knee arthroplasty. The effect of peri-operative cartilage status on survivorship was analyzed using a Kaplan-Meier analysis...
February 23, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29456708/meniscal-allograft-transplantation-using-a-novel-all-arthroscopic-technique-with-specifically-designed-instrumentation
#13
Ya-Dong Zhang, Shu-Xun Hou, Hong-Bin Zhong, Yi-Chao Zhang, Dian-Zhong Luo
The present study describes a novel all-arthroscopic technique for medial and lateral meniscal allograft transplantation (MAT). Surgical instruments were specifically designed to assist in the all-arthroscopic approach for MAT. The bone plug attachment technique, either the arthroscopic-assisted or all-arthroscopic approach, attaches bone plugs to the anterior and posterior horns. In the present study, two sets of surgical implements were designed: One to produce bone plugs of predefined sizes in the anterior and posterior horns of the allograft meniscus (bone plug implements) and a second to create bone tunnels in the receptor tibial plateau to hold the bone plugs (bone tunnel implements)...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29430389/arthroscopic-lateral-meniscal-allograft-transplantation-with-the-key-hole-technique
#14
Dhong Won Lee, Jung Ho Park, Kyu Sung Chung, Jeong Ku Ha, Jin Goo Kim
The efficacy of meniscus allograft transplantation (MAT) for the meniscus-deficient knee has been widely recognized as being excellent in terms of pain relief and functional improvement. Lateral MAT is usually performed with the bone bridge technique that uses a bone bridge connecting the anterior and posterior horns of an allograft. The slot position for the meniscal graft insertion is of great importance with the bone bridge technique, especially in the key-hole method. The purpose of this Technical Note is to describe lateral MAT using the key-hole technique in which an allograft with a bone bridge carved to accommodate the key-hole-shaped slot is properly secured to the slot...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29354476/meniscal-allograft-transplantation-with-concomitant-osteochondral-allograft-transplantation
#15
Eric J Cotter, Rachel M Frank, Brian R Waterman, Kevin C Wang, Michael L Redondo, Brian J Cole
Surgical strategies for knee joint preservation are numerous, with the procedure(s) of choice for a given patient dependent on the status of the articular cartilage, meniscus, overall alignment, and ligamentous stability. For patients with large, isolated, osteochondral defects of the articular cartilage of the femoral condyle, osteochondral allograft transplantation (OCA) is often performed in an effort to reduce pain and improve function. Similarly, for appropriately indicated patients with symptomatic meniscus deficiency, meniscus allograft transplantation (MAT) is an excellent surgical solution...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29354454/arthroscopic-medial-meniscal-allograft-transplantation-with-modified-bone-plug-technique
#16
Dhong Won Lee, Jung Ho Park, Kyu Sung Chung, Jeong Ku Ha, Jin Goo Kim
The meniscal allograft transplantation (MAT) has been reported to be an effective treatment in terms of pain relief and functional improvement in symptomatic meniscus-deficient knee. The medial MAT is usually performed with the bone plug technique or soft tissue fixation for root fixation. We describe medial MAT with modified bone plug technique that permits easy passage of posterior bone plugs and facilitates bone-to-bone healing. With this method, an anterior bone plug with a long cylindrical shape is prepared, and the posterior bone plug is prepared with a flat bone shell containing a cancellous portion...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29354420/lateral-meniscus-allograft-transplantation-the-bone-plug-technique
#17
Jarret M Woodmass, Nick R Johnson, Bruce A Levy, Michael J Stuart, Aaron J Krych
Lateral meniscus tears are commonly encountered by orthopaedic surgeons. Despite efforts to repair and preserve the meniscus, meniscectomy is occasionally required to treat irreparable tears. The resulting lateral meniscus deficiency leads to increased tibiofemoral contact pressures and ultimately early osteoarthritic changes in the knee. Lateral meniscal allograft transplant (LMAT) has been proposed as a way to restore the lateral meniscus-deficient knee to its native form. Although several techniques for LMAT have been proposed, osseous fixation has demonstrated increased stability, improved outcomes, and improved long-term survival...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29352626/differences-between-sexes-in-the-standard-and-advanced-dimensioning-of-lateral-meniscal-allografts
#18
Patrycja Mickiewicz, Michał Walczak, Michał Łaszczyca, Damian Kusz, Zygmunt Wróbel
BACKGROUND: There are many different methods of meniscal allograft measurements, which depend on individual tissue bank procedures. Due to the lack of a standardised method of dimensioning, measurement results may vary between individual cases. Consequently, allograft may be mismatched to the patient's knee anatomy. The purpose of this study was to measure four meniscal dimensions - two standard and two specific - and then compare them between sexes. METHODS: Fourteen cadaveric lateral menisci (seven male and seven female) were scanned using a microtomography scanner...
January 2018: Knee
https://www.readbyqxmd.com/read/29349008/meniscal-allograft-transplantation-made-simple-bridge-and-slot-technique
#19
Daniel J Kaplan, Sergio A Glait, William E Ryan, Michael J Alaia, Kirk A Campbell, Eric J Strauss, Laith M Jazrawi
Over recent years, appreciation for the critical role of the meniscus in joint biomechanics has led to an emphasis on meniscal preservation. Meniscal allograft transplant (MAT) is a promising biological solution for the symptomatic young patient with a meniscus-deficient knee that has not developed advanced osteoarthritis. As surgical techniques are refined and outcomes continue to improve, it is vital to consider the utility of such procedures and offer a straightforward approach to MAT. This article and accompanying video provide a step-by-step tutorial on how to perform a MAT using the bridge and slot technique, its key pearls and pitfalls as well as the relevant advantages and disadvantages of MAT...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29305451/a-pilot-randomized-trial-of-meniscal-allograft-transplantation-versus-personalized-physiotherapy-for-patients-with-a-symptomatic-meniscal-deficient-knee-compartment
#20
RANDOMIZED CONTROLLED TRIAL
N A Smith, N Parsons, D Wright, C Hutchinson, A Metcalfe, P Thompson, M L Costa, T Spalding
AIMS: Meniscal allograft transplantation is undertaken to improve pain and function in patients with a symptomatic meniscal deficient knee compartment. While case series have shown improvements in patient reported outcome measures (PROMs), its efficacy has not been rigorously evaluated. This study aimed to compare PROMs in patients having meniscal transplantation with those having personalized physiotherapy at 12 months. PATIENTS AND METHODS: A single-centre assessor-blinded, comprehensive cohort study, incorporating a pilot randomized controlled trial (RCT) was performed on patients with a symptomatic compartment of the knee in which a (sub)total meniscectomy had previously been performed...
January 2018: Bone & Joint Journal
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