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ACL tears

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https://www.readbyqxmd.com/read/29656143/quantitative-imaging-of-bone-cartilage-interactions-in-acl-injured-patients-with-pet-mri
#1
Feliks Kogan, Audrey P Fan, Uche Monu, Andrei Iagaru, Brian A Hargreaves, Garry E Gold
OBJECTIVE: To investigate changes in bone metabolism by PET, as well as spatial relationships between bone metabolism and MRI quantitative markers of early cartilage degradation, in ACL-reconstructed knees. DESIGN: Both knees of 15 participants with unilateral reconstructed ACL tears and unaffected contralateral knees were scanned using a simultaneous 3.0T PET-MRI system following injection of 18 F-sodium fluoride(18 F-NaF). The maximum pixel standardized uptake value(SUVmax ) in the subchondral bone and the average T2 relaxation time in cartilage were measured in each knee in 8 knee compartments...
April 12, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29620913/into-tunnel-repair-versus-onto-surface-repair-for-rotator-cuff-tears-in-a-rabbit-model
#2
Xiaoxi Li, Peng Shen, Wei Su, Song Zhao, Jinzhong Zhao
BACKGROUND: Clinically, onto-surface repair is commonly used for rotator cuff tears. The retear rate after rotator cuff repair (RCR) is relatively high, with failure occurring mostly at the tendon-bone connection site. For anterior cruciate ligament (ACL) reconstruction, into-tunnel reconstruction is commonly employed. The retear rate after ACL reconstruction is relatively low, with retears seldom occurring at the tendon-bone interface. No study on into-tunnel RCR has been conducted. HYPOTHESIS: Into-tunnel RCR could promote fibrocartilage regeneration at the tendon-bone interface and has biomechanical advantage over onto-surface repair in a rabbit rotator cuff tear model...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29596077/anterior-cruciate-ligament-injuries-in-the-national-hockey-league-epidemiology-and-performance-impact
#3
Robert Longstaffe, Jeff Leiter, Peter MacDonald
OBJECTIVE: To determine the incidence of anterior cruciate ligament (ACL) injuries in the National Hockey League (NHL) and to examine the effects of this injury on return-to-play status and performance. DESIGN: Case series; level of evidence, 4. METHODS: This was a 2-phase study. Phase I used the NHL electronic injury surveillance system and Athlete Health Management System to collect data on ACL injuries and man games lost over 10 seasons (2006/2007-2015/2016)...
March 27, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29588914/association-of-acl-laxity-tests-with-arthroscopic-findings-in-chronic-acl-and-pcl-deficient-knees
#4
S Sazali, A Rusdi, H T Siti
An anterior cruciate ligament (ACL) injury may be diagnosed by clinical examination and radiological investigation using magnetic resonance imaging or by arthroscopy.1,2 Based on our experience, the ACL tear in concomitant chronic ACL and posterior cruciate ligament (PCL) deficient knees may produce knee laxity, which is more difficult to assess on clinical examination, which in turn may affect the management algorithm of the patient. Our hypothesis is that, in a concomitant chronic ACL and PCL injury, posterior capsular contracture and abnormal reattachment of torn ACL will result in less clinical and subjective laxity, preoperatively...
January 2018: Surgery Journal
https://www.readbyqxmd.com/read/29578751/in-vitro-and-in-vivo-performance-of-tissue-engineered-tendons-for-anterior-cruciate-ligament-reconstruction
#5
Kwang Il Lee, Jung Soo Lee, Kyoung Tak Kang, Young Bock Shim, Young Sik Kim, Ju Woong Jang, Seong Hwan Moon, Darryl D D'Lima
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction is the current standard of care for ACL tears. However, the results are not consistently successful; autografts or allografts have certain disadvantages; and synthetic grafts have had poor clinical results. PURPOSE: To determine if recellularization of decellularized tendons combined with mechanical stimulation in a bioreactor could replicate the mechanical properties of the native ACL and be successfully used for ACL reconstruction in vivo...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29576645/anterior-cruciate-ligament-reconstruction-with-tibial-attachment-preserving-hamstring-graft-without-implant-on-tibial-side
#6
Skand Sinha, Ananta Kumar Naik, Mridul Maheshwari, Sumedh Sandanshiv, Durgashankar Meena, Rajendra K Arya
Background: Tibial attachment preserving hamstring graft could prevent potential problems of free graft in anterior cruciate ligament (ACL) reconstruction such as pull out before graft-tunnel healing or rupture before ligamentization. Different implants have been reportedly used for tibial side fixation with this technique. We investigated short-term outcome of ACL reconstruction (ACLR) with tibial attachment sparing hamstring graft without implant on the tibial side by outside in technique...
March 2018: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/29565632/higher-gene-expression-of-healing-factors-in-anterior-cruciate-ligament-remnant-in-acute-anterior-cruciate-ligament-tear
#7
João Victor Novaretti, Diego Costa Astur, Davi Casadio, Alexandre Pedro Nicolini, Alberto de Castro Pochini, Carlos Vicente Andreoli, Benno Ejnisman, Moises Cohen
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction with remnant preservation has been described and related to potential advantages. Literature is lacking regarding gene expression of potential factors related to ligament healing in the ACL remnant and its relation to time from injury. HYPOTHESIS: The mRNA expression of ligament healing factors in the ACL remnant would be higher in acute tears (<3 months from injury) than in intermediate (3-12 months) and chronic (>12 months) injuries...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29559494/combined-acl-reconstruction-and-segond-fracture-fixation-fails-to-abolish-anterolateral-rotatory-instability
#8
Levi Reina Fernandes, Herve Ouanezar, Adnan Saithna, Bertrand Sonnery-Cottet
The Segond fracture (SF) is considered pathognomonic of an anterior cruciate ligament (ACL) tear. However, the anatomy of the soft-tissue attachments responsible for the avulsion of SFs has been a cause of controversy. A 31-year-old male patient presented with an injury to his right knee that resulted in ACL tear and a SF. Open SF fixation and arthroscopic ACL reconstruction were performed. The anatomical dissection demonstrated that the avulsion of SFs had occurred because of the tibial attachment of the anterolateral ligament (ALL) with an intact Iliotibial band...
March 20, 2018: BMJ Case Reports
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/29554721/mesenchymal-stem-cells-isolated-from-the-anterior-cruciate-ligament-characterization-and-comparison-of-cells-from-young-and-old-donors
#10
Patrick Prager, Manuela Kunz, Regina Ebert, Ludger Klein-Hitpass, Jakob Sieker, Thomas Barthel, Franz Jakob, Christian Konrads, Andre Steinert
Purpose: Mesenchymal stem cells (MSCs) isolated from the anterior cruciate ligament (ACL) share multiple characteristics of bone marrow-derived mesenchymal stem cells (BMSCs), allowing their use for regenerative therapies. Injuries to the ACL can affect people of all ages. This study assesses whether the regenerative potential of ACL-derived MSCs (ACL-MSCs) from old donors is as high as the potential of ACL-MSCs from young donors. Materials and Methods: ACL-MSCs were isolated from ACL tissues obtained from young and old donors at the time of ACL reconstruction or arthroplasty...
March 19, 2018: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29552485/graft-retensioning-technique-using-an-adjustable-loop-fixation-device-in-arthroscopic-anterior-cruciate-ligament-reconstruction
#11
Joseph T Gamboa, Edward C Shin, Neil P Pathare, Patrick J McGahan, James L Chen
Anterior cruciate ligament (ACL) tears are an unfortunate and devastating injury in the athletic patient. Surgical reconstruction of the ACL with a taut graft construct is necessary to restore knee stability and help expedite the patient's return to an active lifestyle. Arthroscopy-assisted ACL reconstruction can be a technically involved procedure, where strong fixation limits graft motion to allow sufficient healing within the tibial and femoral tunnels at the bone-tendon interfaces. Loss of tension in a graft can cause symptomatic anterior or rotatory instability and potential retear of the ACL graft...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29552480/primary-anterior-cruciate-ligament-repair-with-augmentation
#12
Sachin Ramchandra Tapasvi, Anshu Shekhar, Shantanu Sudhakar Patil
Anterior cruciate ligament (ACL) tears are usually managed by reconstruction with autograft or allograft, but primary repair in carefully selected patients is a reasonable option. Proximal avulsions presenting early with excellent tissue quality are amenable to repair and healing. Restoration of native ACL preserves its proprioceptive and kinematic functions. A repair is less invasive and avoids graft-related problems, and faster rehabilitation is possible. Protection for the repair in the early stages will allow better healing...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29536687/-analysis-of-the-characteristics-and-clinical-diagnosis-and-treatment-of-avulsion-fracture-of-the-lateral-edge-of-tibial-plateau
#13
Jia-Ping Pan, Xu-Can Wang, Ming-Hong Huang
OBJECTIVE: To investigate the characteristics and clinical treatment of avulsion fracture of the lateral edge of tibial plateau(segond fracture) in knee joint injuries. METHODS: From January 2011 and December 2015, 29 patients with Segond fracture were treated with minimally invasive arthroscopy technology in intra-articular injuries combined with double anchor nail fixation in avulsion fracture of the lateral edge of tibial plateau, including 17 males and 12 females with an average age of 41 years old ranging from 27 to 62 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29526780/subchondral-bone-microarchitecture-in-acl-reconstructed-knees-of-young-women-a-comparison-with-contralateral-and-uninjured-control-knees
#14
Andres Kroker, Jennifer L Bhatla, Carolyn A Emery, Sarah L Manske, Steven K Boyd
Anterior cruciate ligament (ACL) tears are a common sports-related knee injury that increases the risk of developing post-traumatic osteoarthritis (OA). During OA progression bone microarchitecture changes in the affected knee, however, little is known about bone microarchitecture in knees with early stage OA. The purpose of this study is to investigate in a cohort of females predisposed to develop OA how bone microarchitecture in ACL reconstructed knees differs from uninjured contralateral knees as well as healthy control knees and how this relates to early changes in OA...
March 8, 2018: Bone
https://www.readbyqxmd.com/read/29517656/comparison-of-magnetic-resonance-imaging-for-patients-with-acute-and-chronic-anterior-cruciate-ligament-tears
#15
Bin Xu, Hanyuan Zhang, Bo Li, Weichao Wang
To compare the direct and indirect signs on magnetic resonance imaging (MRI) for patients with acute and chronic anterior cruciate ligament (ACL) tears.Two independent reviewers retrospectively evaluated the MRI images of 377 patients with ACL tear confirmed by arthroscopy. There were 160 cases with acute ACL tear and 217 cases with chronic ACL tear. Direct signs in T1- and T2-wighted images and indirect signs including meniscus injury, the collateral ligament injury, cartilage damage or osteoarthritis, kissing contusion, Notch syndrome and abnormal posterior cruciate ligament (PCL) and other indirect signs were evaluated...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29502708/editorial-commentary-the-downstream-effects-of-limited-hip-rotation-and-femoroacetabular-impingement-on-the-anterior-cruciate-ligament-could-a-little-hip-stretching-every-day-or-surgery-keep-the-knee-doctor-away
#16
EDITORIAL
Robert E Boykin
Patients with radiographic evidence of femoroacetabular impingement and decreased hip internal rotation have a higher rate of anterior cruciate ligament (ACL) tears. Limited internal rotation of the hip increases strain and potentially resultant fatigue failure of the ACL. Although causation has not been proven, a better understanding of the lower extremity kinetic chain may allow improved ACL prevention strategies through measures (operative or nonoperative) to improve rotation of the hip.
March 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29502169/the-popliteus-tendon-provides-a-safe-and-reliable-location-for-all-inside-meniscal-repair-device-placement
#17
Hervé Ouanezar, William G Blakeney, Charles Latrobe, Adnan Saithna, Levi Reina Fernandes, Jean Romain Delaloye, Mathieu Thaunat, Bertrand Sonnery-Cottet
PURPOSE: Repairs of the posterior horn of the lateral meniscus can be technically challenging. In contrast to medial meniscus repairs, the capsule around the posterior segment attachment of the lateral meniscus is quite thin. This study evaluates the clinical results of an arthroscopic all-inside repair technique for unstable, vertical, lateral meniscus tears, using a suture repair placed directly into the popliteus tendon. METHODS: A retrospective analysis of prospectively collected data from the SANTI database was performed...
March 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29492642/meniscus-repair-with-simultaneous-acl-reconstruction-demonstrated-similar-clinical-outcomes-as-isolated-acl-repair-a-result-not-seen-with-meniscus-resection
#18
Mark Phillips, Erik Rönnblad, Love Lopez-Rengstig, Eleonor Svantesson, Anders Stålman, Kalle Eriksson, Olufemi R Ayeni, Kristian Samuelsson
PURPOSE: To compare Knee Injury and Osteoarthritis Outcome Score (KOOS) and EuroQol-5D (EQ-5D) subscale scores at 2-year follow-up for patients with primary isolated ACL reconstruction with patients undergoing ACL reconstruction and simultaneous meniscal treatment in terms of either resection or repair in the Swedish National Knee Ligament Register (SNKLR). METHODS: All ACL reconstruction patients within the SNKLR at 2-year follow-up were reviewed. The KOOS and EQ-5D subscales were assessed in four distinct patient groups: isolated ACL reconstruction, ACL reconstruction + medial meniscus resection, ACL reconstruction + lateral meniscus resection, ACL reconstruction + medial meniscus repair, and ACL reconstruction + lateral meniscus repair...
February 28, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29487001/the-influence-of-segond-fracture-on-outcomes-after-anterior-cruciate-ligament-reconstruction
#19
Kyoung Ho Yoon, Jung Suk Kim, Soo Yeon Park, Sang Eon Park
PURPOSE: To determine the prevalence of Segond fractures using computed tomography (CT) and to investigate the effects of Segond fractures on the outcomes of primary anterior cruciate ligament (ACL) reconstruction for isolated ACL injuries. METHODS: Between January 2010 and July 2015, we retrospectively evaluated 383 patients who underwent primary ACL reconstruction, who underwent CT scans immediately after surgery, and who were available at 2 years of follow-up...
February 24, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29476215/natural-evolution-of-popliteomeniscal-fascicle-tears-over-2-years-and-its-association-with-lateral-articular-knee-cartilage-degeneration-in-patients-with-traumatic-anterior-cruciate-ligament-tear
#20
Julio Brandao Guimaraes, Luca Facchetti, Benedikt J Schwaiger, Alexandra S Gersing, Xiaojuan Li, Thomas M Link
OBJECTIVES: To assess (i) normal imaging anatomy of the popliteomeniscal fascicles, (ii) prevalence and natural evolution of popliteomeniscal fascicle tears (PMFT) in subjects with traumatic anterior cruciate ligament (ACL) tears over 2 years and (iii) compare knee cartilage degeneration in subjects with and without PMFT longitudinally. METHODS: 57 subjects with ACL tears were screened for PMFT. Morphological (high-resolution 3D fast spin-echo) and compositional (T1ρ and T2 mapping) MR imaging was performed prior to and 2 years after ACL reconstruction...
February 23, 2018: European Radiology
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