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American Journal of Sports Medicine

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https://www.readbyqxmd.com/read/29350537/cartilage-morphological-and-histological-findings-after-reconstruction-of-the-glenoid-with-an-iliac-crest-bone-graft
#1
Alexander Auffarth, Herbert Resch, Nicholas Matis, Martin Hudelmaier, Wolfgang Wirth, Rosemarie Forstner, Daniel Neureiter, Andreas Traweger, Philipp Moroder
BACKGROUND: The J-bone graft is presumably representative of iliac crest bone grafts in general and allows anatomic glenoid reconstruction in cases of bone defects due to recurrent traumatic anterior shoulder dislocations. As a side effect, these grafts have been observed to be covered by some soft, cartilage-like tissue when arthroscopy has been indicated after such procedures. PURPOSE: To evaluate the soft tissue covering of J-bone grafts by use of magnetic resonance imaging (MRI) and histological analysis...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29345504/development-of-the-hoosglobal-to-assess-patient-reported-outcomes-in-patients-undergoing-hip-preservation-procedures
#2
Cale A Jacobs, Michael R Peabody, Stephen T Duncan, Ryan D Muchow, Ryan M Nunley, John C Clohisy, Paul E Beaule, Young Jo Kim, Michael B Millis, David A Podeszwa, Perry L Schoenecker, Rafael J Sierra, Ernest L Sink, Daniel J Sucato, Robert T Trousdale, Ira Zaltz
BACKGROUND: The creation of a single patient-reported outcome (PRO) platform validated across hip preservation, osteoarthritis (OA), and total hip arthroplasty (THA) populations may reduce barriers and streamline the routine collection of PROs in clinical practice. As such, the purpose of this study was to determine if augmenting the Hip disability and Osteoarthritis Outcome Score-Joint Replacement (HOOS, JR) with additional HOOS questions would result in a PRO platform that could be used across a wider spectrum of hip patient populations...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29337602/defining-the-learning-curve-for-hip-arthroscopy-a-threshold-analysis-of-the-volume-outcomes-relationship
#3
Nabil Mehta, Peter Chamberlin, Robert G Marx, Chisa Hidaka, Yile Ge, Danyal H Nawabi, Stephen Lyman
BACKGROUND: Hip arthroscopy has emerged as a successful option for the treatment of femoroacetabular impingement and related hip disorders, but the procedure is technically challenging. PURPOSE: To define the learning curve through which surgeons become proficient at hip arthroscopy. STUDY DESIGN: Cohort study; level of evidence, 3. METHODS: The authors identified hip arthroscopy procedures performed by surgeons through a New York State database (Statewide Planning and Research Cooperative System) and followed those cases for additional hip surgery (total hip arthroplasty, hip resurfacing, or ipsilateral hip arthroscopy) within 5 years of the original procedure...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29337596/the-influence-of-graft-fixation-methods-on-revision-rates-after-primary-anterior-cruciate-ligament-reconstruction
#4
Niclas H Eysturoy, Kåre Amtoft Nissen, Torsten Nielsen, Martin Lind
BACKGROUND: The method of graft fixation in primary anterior cruciate ligament (ACL) reconstruction is important for initial stability of the graft. Poor graft fixation can result in failure of the reconstruction. The effect of ACL graft fixation principles and fixation implant combinations on the risk of revision after ACL reconstruction is not well understood. PURPOSE: The study aimed to compare the risk of revision among 4 categories of femoral fixation divided by their principle of function using a hamstring tendon (HT) graft only...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29337592/concentrations-of-blood-components-in-commercial-platelet-rich-plasma-separation-systems-a-review-of-the-literature
#5
Bart W Oudelaar, Joost C Peerbooms, Rianne Huis In 't Veld, Anne J H Vochteloo
BACKGROUND: Platelet-rich plasma (PRP) has proven to be a very safe therapeutic option in the treatment of tendon, muscle, bone, and cartilage injuries. Currently, several commercial separation systems are available for the preparation of PRP. The concentrations of blood components in PRP among these separation systems vary substantially. PURPOSE: To systematically review and evaluate the differences between the concentrations of blood components in PRP produced by various PRP separation systems...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29328888/posterior-cruciate-ligament-reconstruction-with-transtibial-or-tibial-inlay-techniques-a-meta-analysis-of-biomechanical-and-clinical-outcomes
#6
Dong-Yeong Lee, Dong-Hee Kim, Hyun-Jung Kim, Hyeong-Sik Ahn, Tae-Ho Lee, Sun-Chul Hwang
BACKGROUND: Transtibial (TT) or tibial inlay (TI) techniques are commonly used for posterior cruciate ligament reconstruction (PCLR). However, the optimum method for PCLR after PCL injury remains debatable. Hypothesis/Purpose: The hypothesis was that TT and TI techniques would not show significant differences for all outcome measures. The purpose was to determine the biomechanical and clinical outcomes of TT and TI surgical techniques for PCLR. STUDY DESIGN: Meta-analysis; Level of evidence, 3...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29328887/macroscopic-rotator-cuff-tendinopathy-and-histopathology-do-not-predict-repair-outcomes-of-rotator-cuff-tears
#7
Paul M Sethi, Chirag D Sheth, Leo Pauzenberger, Mary Beth R McCarthy, Mark P Cote, Emma Soneson, Seth Miller, Augustus D Mazzocca
BACKGROUND: Numerous studies have identified factors that may affect the chances of rotator cuff healing after surgery. Intraoperative tendon quality may be used to predict healing and to determine type of repair and/or consideration of augmentation. There are no data that correlate how gross tendon morphology and degree of tendinopathy affect patient outcome or postoperative tendon healing. Purpose/Hypothesis: The purposes of this study were to (1) compare the gross appearance of the tendon edge during arthroscopic rotator cuff repair with its histological degree of tendinopathy and (2) determine if gross appearance correlated with postoperative repair integrity...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29328886/osteochondral-graft-size-is-significantly-associated-with-increased-force-and-decreased-chondrocyte-viability
#8
Brian E Walczak, Matthew S Nies, Darrin J Trask, Scott Hetzel, Patrick J Roney, Matthew W Squire, Geoffrey S Baer
BACKGROUND: Insertion force has been shown to significantly reduce chondrocyte viability during osteochondral allograft transplantation. How graft size influences the required insertion force and chondrocyte viability has yet to be determined. Hypothesis/Purpose: The purpose was to characterize how graft size influences insertion force requirements and chondrocyte viability during osteochondral transplantation. The hypothesis was that larger grafts would require greater force and reduce chondrocyte viability...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29323926/investigating-effects-of-sex-differences-and-prior-concussions-on-symptom-reporting-and-cognition-among-adolescent-soccer-players
#9
Brian L Brooks, Noah Silverberg, Bruce Maxwell, Rebekah Mannix, Ross Zafonte, Paul D Berkner, Grant L Iverson
BACKGROUND: There has been increasing concern regarding the possible effect of multiple concussions on the developing brain, especially for adolescent females. Hypothesis/Purpose: The objectives were to determine if there are differences in cognitive functioning, symptom reporting, and/or sex effects from prior concussions. In a very large sample of youth soccer players, it was hypothesized that (1) there would be no differences in cognitive test performance between those with and without prior concussions, (2) baseline preseason symptoms would be better predicted by noninjury factors than concussion history, and (3) males and females with prior concussions would not have differences in cognition or symptoms...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29323925/the-responsiveness-of-patient-reported-outcome-tools-in-shoulder-surgery-is-dependent-on-the-underlying-pathological-condition
#10
R Zackary Unger, Jeremy M Burnham, Lee Gammon, Chaitu S Malempati, Cale A Jacobs, Eric C Makhni
BACKGROUND: Given the high number of available patient-reported outcome (PRO) tools for patients undergoing shoulder surgery, comparative information is necessary to determine the most relevant forms to incorporate into clinical practice. PURPOSE: To determine the utilization and responsiveness of common PRO tools in studies involving patients undergoing arthroscopic rotator cuff repair or operative management of glenohumeral instability. STUDY DESIGN: Systematic review...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29320219/modified-latarjet-without-capsulolabral-repair-in-rugby-players-with-recurrent-anterior-glenohumeral-instability-and-significant-glenoid-bone-loss
#11
Maximiliano Ranalletta, Luciano A Rossi, Agustin Bertona, Ignacio Tanoira, Ignacio Alonso Hidalgo, Gastón D Maignon, Santiago L Bongiovanni
BACKGROUND: The optimal management of recurrent anterior shoulder instability with significant glenoid bone loss in high-demand collision athletes remains a challenge. PURPOSE: To analyze the time to return to sport, clinical outcomes, and recurrences following a modified Latarjet procedure without capsulolabral repair in rugby players with recurrent anterior shoulder instability and significant glenoid bone loss. STUDY DESIGN: Case series; Level of evidence, 4...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29314867/location-of-rotator-cuff-tear-initiation-a-magnetic-resonance-imaging-study-of-191-shoulders
#12
Jeung Yeol Jeong, Seul Ki Min, Keun Min Park, Yong Bok Park, Kwang Joon Han, Jae Chul Yoo
BACKGROUND: Degenerative rotator cuff tears (RCTs) are generally thought to originate at the anterior margin of the supraspinatus tendon. However, a recent ultrasonography study suggested that they might originate more posteriorly than originally thought, perhaps even from the isolated infraspinatus (ISP) tendon, and propagate toward the anterior supraspinatus. Hypothesis/Purpose: It was hypothesized that this finding could be reproduced with magnetic resonance imaging (MRI). The purpose was to determine the most common location of degenerative RCTs by using 3-dimensional multiplanar MRI reconstruction...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29314864/outcomes-of-osteochondral-allograft-transplantation-with-and-without-concomitant-meniscus-allograft-transplantation-a-comparative-matched-group-analysis
#13
Rachel M Frank, Simon Lee, Eric J Cotter, Charles P Hannon, Timothy Leroux, Brian J Cole
BACKGROUND: Osteochondral allograft transplantation (OCA) is often performed with concomitant meniscus allograft transplantation (MAT) as a strategy for knee joint preservation, although to date, the effect of concomitant MAT on outcomes and failure rates after OCA has not been assessed. PURPOSE: To determine clinical outcomes for patients undergoing OCA with MAT as compared with a matched cohort of patients undergoing isolated OCA. STUDY DESIGN: Control study; Level of evidence, 3...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29309200/risk-factors-for-infection-after-shoulder-arthroscopy-in-a-large-medicare-population
#14
Jourdan M Cancienne, Stephen F Brockmeier, Eric W Carson, Brian C Werner
BACKGROUND: Shoulder arthroscopy is well established as a highly effective and safe procedure for the treatment for several shoulder disorders and is associated with an exceedingly low risk of infectious complications. Few data exist regarding risk factors for infection after shoulder arthroscopy, as previous studies were not adequately powered to evaluate for infection. PURPOSE: To determine patient-related risk factors for infection after shoulder arthroscopy by using a large insurance database...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29298084/risk-of-infection-after-allograft-anterior-cruciate-ligament-reconstruction-are-nonprocessed-allografts-more-likely-to-get-infected-a-cohort-study-of-over-10-000-allografts
#15
Anthony Yu, Heather A Prentice, William E Burfeind, Tadhashi Funahashi, Gregory B Maletis
BACKGROUND: Allograft tissue is frequently used in anterior cruciate ligament reconstruction (ACLR). It is often irradiated and/or chemically processed to decrease the risk of disease transmission, but some tissue is aseptically harvested without further processing. Irradiated and chemically processed allograft tissue appears to have a higher risk of revision, but whether this processing decreases the risk of infection is not clear. PURPOSE: To determine the incidence of deep surgical site infection after ACLR with allograft in a large community-based sample and to evaluate the association of allograft processing and the risk of deep infection...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29298083/clinical-outcomes-after-isolated-medial-patellofemoral-ligament-reconstruction-for-patellar-instability-among-patients-with-trochlear-dysplasia
#16
Joseph N Liu, Jacqueline M Brady, Irene L Kalbian, Sabrina M Strickland, Claire Berdelle Ryan, Joseph T Nguyen, Beth E Shubin Stein
BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction has become one of the most common and widely used procedures to regain stability among patients with recurrent lateral patellar dislocation. While recent studies demonstrated low recurrence rates, improved patient-reported outcome measures, and a high rate of return to sports, limited literature explored its effectiveness as an isolated intervention in the context of trochlear dysplasia. PURPOSE: To determine the efficacy of isolated MPFL reconstruction in treating patellar instability in the setting of trochlear dysplasia...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29298079/effect-of-dynamic-changes-in-anterior-cruciate-ligament-in-situ-graft-force-on-the-biological-healing-response-of-the-graft-tunnel-interface
#17
Richard Ma, Michael Schär, Tina Chen, Marco Sisto, Joseph Nguyen, Clifford Voigt, Xiang-Hua Deng, Scott A Rodeo
BACKGROUND: Anterior cruciate ligament (ACL) grafts that are placed for reconstruction are subject to complex forces. Current "anatomic" ACL reconstruction techniques may result in greater in situ graft forces. The biological effect of changing magnitudes of ACL graft force on graft-tunnel osseointegration is not well understood. PURPOSE: The research objective is to determine how mechanical force on the ACL graft during knee motion affects tendon healing in the tunnel...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29293364/cartilage-subsurface-changes-to-magnetic-resonance-imaging-ute-t2-2-years-after-anterior-cruciate-ligament-reconstruction-correlate-with-walking-mechanics-associated-with-knee-osteoarthritis
#18
Matthew R Titchenal, Ashley A Williams, Eric F Chehab, Jessica L Asay, Jason L Dragoo, Garry E Gold, Timothy R McAdams, Thomas P Andriacchi, Constance R Chu
BACKGROUND: Anterior cruciate ligament (ACL) injury increases risk for posttraumatic knee osteoarthritis (OA). Quantitative ultrashort echo time enhanced T2* (UTE-T2*) mapping shows promise for early detection of potentially reversible subsurface cartilage abnormalities after ACL reconstruction (ACLR) but needs further validation against established clinical metrics of OA risk such as knee adduction moment (KAM) and mechanical alignment. HYPOTHESIS: Elevated UTE-T2* values in medial knee cartilage 2 years after ACLR correlate with varus alignment and higher KAM during walking...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29293362/comparison-of-clinical-results-second-look-arthroscopic-findings-and-mri-findings-between-the-transportal-and-outside-in-techniques-for-double-bundle-anatomic-anterior-cruciate-ligament-reconstruction-a-prospective-randomized-controlled-trial-with-a-minimum
#19
Jae Gyoon Kim, Seung Hoon Kang, Jun Ho Kim, Chae Ouk Lim, Joon Ho Wang
BACKGROUND: Although image analysis has shown that the outside-in (OI) technique is associated with different femoral tunnel geometry than the transportal (TP) technique in anatomic anterior cruciate ligament (ACL) reconstruction, it is not known whether clinical results differ between the 2 techniques. PURPOSE: To compare clinical results, second-look arthroscopic findings, and magnetic resonance imaging (MRI) findings between the TP and OI techniques in anatomic double-bundle (DB) ACL reconstruction...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29293361/the-effectiveness-of-platelet-rich-plasma-injections-in-gluteal-tendinopathy-a-randomized-double-blind-controlled-trial-comparing-a-single-platelet-rich-plasma-injection-with-a-single-corticosteroid-injection
#20
Jane Fitzpatrick, Max K Bulsara, John O'Donnell, Paul Robert McCrory, Ming Hao Zheng
BACKGROUND: Gluteus medius/minimus tendinopathy is a common cause of lateral hip pain or greater trochanteric pain syndrome. HYPOTHESIS: There would be no difference in the modified Harris Hip Score (mHHS) between a single platelet-rich plasma (PRP) injection compared with a corticosteroid injection in the treatment of gluteal tendinopathy. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: There were 228 consecutive patients referred with gluteal tendinopathy who were screened to enroll 80 participants; 148 were excluded (refusal: n = 42; previous surgery or sciatica: n = 50; osteoarthritis, n = 17; full-thickness tendon tear, n = 17; other: n = 22)...
January 1, 2018: American Journal of Sports Medicine
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