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Anterior cruciate ligament reconstruction

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https://www.readbyqxmd.com/read/28749093/comparing-low-volume-saphenous-obturator-block-with-placebo-and-femoral-obturator-block-for-anterior-cruciate-ligament-reconstruction-a-randomized-controlled-trial
#1
Katja Lenz, Kenneth Jensen, Katrine Tanggaard, Mojgan Vazin, Thomas F Bendtsen, Vincent Chan, Michael R Krogsgaard, Mikael L Strube, Jens Børglum
BACKGROUND: Anterior cruciate ligament reconstruction (ACL-RC) is often associated with moderate to severe postoperative pain even with a multimodal analgesic regimen. We aimed to compare the analgesic efficacy of low volume saphenous-obturator block with placebo and femoral- obturator block in patients undergoing ACL-RC. METHODS: In a randomized controlled trial eighty-two patients undergoing ACL-RC with hamstring autograft were allocated to either low volume saphenous-obturator block, placebo block or femoral-obturator block...
July 26, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28749036/advantages-of-rna-seq-compared-to-rna-microarrays-for-transcriptome-profiling-of-anterior-cruciate-ligament-tears
#2
Muhammad Farooq Rai, Eric D Tycksen, Linda J Sandell, Robert H Brophy
Microarrays and RNA-seq are at the forefront of high throughput transcriptome analyses. Since these methodologies are based on different principles there are concerns about the concordance of data between the two techniques. The concordance of RNA-seq and microarrays for genome-wide analysis of differential gene expression has not been rigorously assessed in clinically derived ligament tissues. To demonstrate the concordance between RNA-seq and microarrays and to assess potential benefits of RNA-seq over microarrays, we assessed differences in transcript expression in anterior cruciate ligament (ACL) tissues based on time-from-injury...
July 27, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28748492/calcium-phosphate-hybridized-tendon-grafts-reduce-femoral-bone-tunnel-enlargement-in-anatomic-single-bundle-acl-reconstruction
#3
Hirotaka Mutsuzaki, Tomonori Kinugasa, Kotaro Ikeda, Masataka Sakane
PURPOSE: This study aimed to clarify the effect of calcium phosphate (CaP)-hybridized tendon grafting versus unhybridized tendon grafting on the morphological changes to the bone tunnels at the aperture 1 year after anatomic single-bundle anterior cruciate ligament (ACL) reconstruction. METHODS: Seventy-three patients were randomized to undergo the CaP (n = 37) or the conventional method (n = 36). All patients underwent computed tomography (CT) evaluation 1 week and 1 year post-operatively...
July 26, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28748489/hamstring-autograft-maturation-is-superior-to-tibialis-allograft-following-anatomic-single-bundle-anterior-cruciate-ligament-reconstruction
#4
Sang-Gyun Kim, Soo-Hyun Kim, Jae-Gyoon Kim, Ki-Mo Jang, Hong-Chul Lim, Ji-Hoon Bae
PURPOSE: Using second-look arthroscopy, graft maturation was investigated and compared between hamstring (HA) autografts and tibialis anterior (TA) allografts after anatomic single-bundle anterior cruciate ligament reconstruction (ACLR). METHODS: Fifty-six patients who underwent second-look arthroscopy after anatomic single-bundle ACLR with either HA autografts (26, HA group) or TA allografts (30, TA group) from 2007 to 2016 were retrospectively reviewed. Graft maturation on second-look arthroscopy was evaluated in terms of four parameters: graft integrity (tear), synovial coverage, graft tension, and graft vascularization...
July 26, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28747617/prolonged-infection-at-the-tibial-bone-tunnel-after-anterior-cruciate-ligament-reconstruction
#5
Hironori Numazaki, Hideo Kobayashi, Katsuhiro Yoshida, Michiyuki Hakozaki, Shin-Ichi Konno
A 24-year-old man with severe atopic dermatitis underwent anterior cruciate ligament (ACL) reconstruction of the right knee seven years earlier but developed a surgical site infection. The infection did not heal after removal of the metal implants, and a fistula eventually developed. This condition was left untreated for six years before he was referred to our hospital. Magnetic resonance imaging showed fluid in the tibial bone tunnel and extensive bone marrow edema surrounding the bone tunnel. Based on these findings, abscess formation within the tibial bone tunnel and osteomyelitis spreading to the proximal tibia were suspected...
July 26, 2017: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/28747267/a-new-femoral-fixation-device-for-anterior-cruciate-ligament-reconstruction-using-the-outside-in-technique-and-hamstring-tendon-graft-a-comparison-between-two-devices-in-cadaveric-human-knee-models
#6
Suri Chong, Dai-Soon Kwak, Dhanasekaraprabu Balasubramanian, Young Dong Song, Young Gon Na, Tae Kyun Kim
BACKGROUND: A new device (T-anchor) was developed for ACL reconstruction and is implanted via the outside-in technique using hamstring grafts. The purpose of this study was to compare the T-anchor with the EndoButton Direct. METHODS: This study was conducted on 30 cadaveric knees (15 matched pairs). There were two groups of 15 each in the T-anchor and EndoButton Direct groups. After the harvest of grafts, fixation site profile and graft length were measured by loading the grafts onto both devices...
July 23, 2017: Knee
https://www.readbyqxmd.com/read/28746947/-eccentric-training-after-a-traumatic-apophysis-fracture-at%C3%A2-the-spina-iliaca-anterior-inferior-case-study-of-a-junior-football-player
#7
Yvonne Landkammer, Florian Rieder, Robert Sassmann, Jürgen Herfert, Anton Wicker
Eccentric training is an established training method in competitive sports. It has been used effectively to improve muscle strength during rehabilitation after cruciate ligament reconstruction. However, it is still uncertain whether or not eccentric training contributes to successful rehabilitation after apophysis fractures. A fourteen-year-old soccer player, forward position, presents with an apophysis avulsion located at the right spina iliaca anterior inferior. After completing an early rehabilitation phase and isokinetic concentric strength development, the patient starts an eccentric training programme eight weeks after the injury, including training on an isokinetic dynamometer (Biodex) for four weeks, followed by a four-week eccentric ergometer training (Eccentron)...
July 26, 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/28743379/a-novel-hydroxyapatite-based-screw-like-device-for-anterior-cruciate-ligament-acl-reconstructions
#8
Thomas C Schumacher, Kamen Tushtev, Ulrich Wagner, Caroline Becker, Marzellus Große Holthaus, Sebastian B Hein, Janne Haack, Christian Heiss, Markus Engelhardt, Thaqif El Khassawna, Kurosch Rezwan
BACKGROUND: Rupture of the anterior cruciate ligament (ACL) is one of the most common injuries of the knee. Common techniques for ACL reconstruction require a graft fixation using interference screws. Nowadays, these interference screws are normally made of titanium or polymer/ceramic composites. The main challenge of application of a fixation device made entirely of bioactive ceramic is in relation to the low strength of such materials. The purpose of this study was to evaluate a novel geometry for a fixation device made of pure hydroxyapatite for ACL reconstructions that can overcome some problems of the titanium and the polymer/ceramic screws...
July 22, 2017: Knee
https://www.readbyqxmd.com/read/28741153/recovery-of-acl-function-after-dynamic-intraligamentary-stabilization-is-resultant-to-restoration-of-acl-integrity-and-scar-tissue-formation
#9
Atesch Ateschrang, Sufian S Ahmad, Ulrich Stöckle, Steffen Schroeter, Willem Schenk, Marc Daniel Ahrend
PURPOSE: Dynamic intraligamentary stabilization (DIS) is recognized as a ligament preserving technique for the treatment of acute anterior cruciate ligament (ACL) injuries. The aim of this study was to assess the integrity and morphology of the recovered ACL after DIS repair. METHODS: The cohort comprised 47 patients with an acute proximal ACL rupture undergoing DIS repair. All patients underwent diagnostic arthroscopy after a minimum postoperative interval of 6 months for semi-quantitative evaluation of ACL integrity, function and scar tissue formation...
July 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28739425/associations-of-isokinetic-and-isotonic-knee-strength-with-knee-function-and-activity-level-after-anterior-cruciate-ligament-reconstruction-a-prospective-cohort-study
#10
Yong-Hao Pua, Jia-Ying Ho, Suelyn Ai-Sim Chan, Shin-Jiun Khoo, Hwei-Chi Chong
BACKGROUND: Although isokinetic dynamometry often serves as a reference to assess the concurrent validity of weight-machine isotonic strength testing, it is unknown whether isokinetic knee strength is associated with knee function and activity level more strongly than isotonic knee strength in patients with an anterior cruciate ligament reconstruction (ACLR). This study aimed to compare the associations of isokinetic and isotonic knee strength with knee function and work-and-sports activity levels in patients with ACLR...
July 21, 2017: Knee
https://www.readbyqxmd.com/read/28737955/meta-analysis-of-the-risk-of-infections-after-anterior-cruciate-ligament-reconstruction-by-graft-type
#11
Anchal Bansal, Joseph D Lamplot, James T Vandenberg, Robert H Brophy
BACKGROUND: An infection after anterior cruciate ligament (ACL) reconstruction is a relatively rare but challenging complication. There are no meta-analyses comparing the incidence of infections after ACL reconstruction with the various available graft choices. PURPOSE: To compare the incidence of infections after ACL reconstruction with bone-patellar tendon-bone (BPTB) autografts compared with hamstring autografts, with a secondary aim of comparing the incidence of infections after reconstruction with autografts compared with allografts...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28730168/bone-tunnel-impaction-reduced-the-tibial-tunnel-enlargement
#12
Huan Xu, Rongzong Zheng, Jinhe Ying
The purpose of this study was to investigate whether the bone tunnel impaction technique performed by dilators could dwindle the tibial tunnel enlargement after anterior cruciate ligament (ACL) reconstruction with hamstring tendon using both extracortical suspensory fixation devices at femoral and tibial site. Thirty-one consecutive patients undergoing primary ACL reconstruction with the hamstring autograft were enrolled in this research. Patients were randomly allotted to group A (bone tunnel impaction technique using dilators) or group B (regular extraction bone tunnel drilling)...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28727937/preoperative-short-form-health-survey-score-is-predictive-of-return-to-play-and-minimal-clinically-important-difference-at-a-minimum-2-year-follow-up-after-anterior-cruciate-ligament-reconstruction
#13
Benedict U Nwachukwu, Brenda Chang, Pramod B Voleti, Patricia Berkanish, Matthew R Cohn, David W Altchek, Answorth A Allen, Riley J Williams
BACKGROUND: There is increased interest in understanding the preoperative determinants of postoperative outcomes. Return to play (RTP) and the patient-reported minimal clinically important difference (MCID) are useful measures of postoperative outcomes after anterior cruciate ligament reconstruction (ACLR). PURPOSE: To define the MCID after ACLR and to investigate the role of preoperative outcome scores for predicting the MCID and RTP after ACLR. STUDY DESIGN: Case-control study; Level of evidence, 3...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28724372/comparison-of-artificial-graft-versus-autograft-in-anterior-cruciate-ligament-reconstruction-a-meta-analysis
#14
Zhen-Yu Jia, Chen Zhang, Shi-Qi Cao, Chen-Chen Xue, Tian-Ze Liu, Xuan Huang, Wei-Dong Xu
BACKGROUND: Critically evaluation and summarization for the outcomes between autografts and artificial grafts using in anterior cruciate ligament (ACL) reconstruction have not been performed currently. The purpose of this study is to compare the clinical outcomes between artificial ligaments and autografts at a short- to mid-term follow-up. METHODS: A computerized search of the databases was conducted including Medline, Embase, and the Cochrane library. Only prospective or retrospective comparative studies with a minimum 2-year follow-up and a minimum sample size of 15 for each group were considered for inclusion...
July 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28718171/younger-patients-and-men-achieve-higher-outcome-scores-than-older-patients-and-women-after-anterior-cruciate-ligament-reconstruction
#15
Kate E Webster, Julian A Feller
BACKGROUND: There is some evidence that functional performance and validated outcome scores differ according to the gender, age, and sport participation status of a patient after anterior cruciate ligament (ACL) reconstruction. However, the impact of these three factors, and interaction among them, has not been studied across a large relatively homogeneous group of patients to better elucidate their impact. QUESTIONS/PURPOSES: We reviewed a large cohort of patients who had undergone ACL reconstruction to determine if ROM, knee laxity, objective performance measures, and validated outcome scores differed according to (1) gender; (2) age; and (3) sport participation status...
July 17, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28717622/semitendinosus-muscle-architecture-during-maximum-isometric-contractions-in-individuals-with-anterior-cruciate-ligament-reconstruction-and-controls
#16
Evagelos Karagiannidis, Eleftherios Kellis, Nikiforos Galanis, Baltzopoulos Vasilios
BACKGROUND: The most widely used graft as a replacement in anterior cruciate ligament (ACL) reconstruction is the semitendinosus (ST) tendon graft. After harvesting for ACL reconstruction, the hamstring tendon regenerates in most people and becomes similar to normal. The effect of graft harvest on muscle morphology and function remains unclear. The present study aimed to examine the morphology of the ST during isometric contraction after harvesting the ST tendon for ACL reconstruction...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28714793/equivalent-knee-injury-and-osteoarthritis-outcome-scores-12-and-24-months-after-anterior-cruciate-ligament-reconstruction-results-from-the-swedish-national-knee-ligament-register
#17
Kristian Samuelsson, Robert A Magnussen, Eduard Alentorn-Geli, Ferid Krupic, Kurt P Spindler, Christer Johansson, Magnus Forssblad, Jón Karlsson
BACKGROUND: It is not clear whether Knee injury and Osteoarthritis Outcome Score (KOOS) results will be different 1 or 2 years after anterior cruciate ligament (ACL) reconstruction. PURPOSE: To investigate within individual patients enrolled in the Swedish National Knee Ligament Register whether there is equivalence between KOOS at 1 and 2 years after primary ACL reconstruction. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the period January 1, 2005, through December 31, 2013...
July 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28712027/concomitant-meniscal-injury-in-anterior-cruciate-ligament-reconstruction%C3%A2-does-not-lead-to-poorer-short-term-post-operative-outcomes
#18
Amritpal Singh, Desmond Thiam Wei, Cheryl Tan Pei Lin, Shen Liang, Saumitra Goyal, Kimberly-Anne Tan, Brian Zhaojie Chin, Lingaraj Krishna
PURPOSE: The main objective was to compare post-operative outcomes in patients undergoing anterior cruciate ligament (ACL) reconstruction both with and without concomitant meniscus injury at a mean follow-up of 3.5 years. The secondary objective was to study the effect of different meniscal injury sites and treatment modalities on post-operative outcomes (PROS). METHODS: This is a retrospective analysis of a prospectively maintained database of patients undergoing ACL reconstruction at our tertiary institution between 2009 and 2012...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28712025/side-to-side-asymmetries-in-landing-mechanics-from-a-drop-vertical-jump-test-are-not-related-to-asymmetries-in-knee-joint-laxity-following-anterior-cruciate-ligament-reconstruction
#19
Christophe A G Meyer, Paul Gette, Caroline Mouton, Romain Seil, Daniel Theisen
PURPOSE: Asymmetries in knee joint biomechanics and increased knee joint laxity in patients following anterior cruciate ligament reconstruction (ACLR) are considered risk factors for re-tear or early onset of osteoarthritis. Nevertheless, the relationship between these factors has not been established. The aim of the study was to compare knee mechanics during landing from a bilateral drop vertical jump in patients following ACLR and control participants and to study the relationship between side-to-side asymmetries in landing mechanics and knee joint laxity...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28712024/knee-hyperextension-does-not-adversely-affect-dynamic-in-vivo-kinematics-after-anterior-cruciate-ligament-reconstruction
#20
Kanto Nagai, Tom Gale, Elmar Herbst, Yasutaka Tashiro, James J Irrgang, Scott Tashman, Freddie H Fu, William Anderst
PURPOSE: To evaluate the effect of knee hyperextension on dynamic in vivo kinematics after anterior cruciate ligament reconstruction (ACL-R). METHODS: Forty-two patients underwent unilateral ACL-R. Twenty-four months after surgery, subjects performed level walking and downhill running on a treadmill while dynamic stereo radiographs were acquired at 100 (walking) and 150 Hz (running). Tibiofemoral motion was determined using a validated model-based tracking process, and tibiofemoral translations/rotations were calculated...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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