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https://www.readbyqxmd.com/read/28803759/role-of-tear-location-on-outcomes-of-open-primary-repair-of-the-anterior-cruciate-ligament-a-systematic-review-of-historical-studies
#1
REVIEW
Jelle P van der List, Gregory S DiFelice
BACKGROUND: The general opinion is that outcomes of open primary repair of the anterior cruciate ligament (ACL) in the historical literature were disappointing. Since good outcomes of primary repair of proximal tears have recently been reported, we aimed to assess the role of tear location on open primary repair outcomes in the historical literature. METHODS: All studies reporting outcomes of open primary ACL repair published between the inception of PubMed, Embase and Cochrane and 2000 were identified...
August 10, 2017: Knee
https://www.readbyqxmd.com/read/28803758/association-between-body-weight-and-proximal-tibial-bone-mineral-density-after-bilateral-total-knee-arthroplasty
#2
Yoshinori Ishii, Hideo Noguchi, Junko Sato, Hana Ishii, Koji Todoroki, Shin-Ichi Toyabe
BACKGROUND: Proximal tibial bone mineral density (BMD) has been studied for its potential impact on subsidence and loosening of the tibial component after total knee arthroplasty (TKA). However, no known studies of proximal tibial BMD after TKA have evaluated the effect of major impact factors such as body weight (BW), muscle strength, and level of activity. We aim to determine whether factors such as level of activity, quadriceps strength, BW, gender, age, and prosthetic design affect proximal tibial BMD over the mid- to long-term following TKA...
August 10, 2017: Knee
https://www.readbyqxmd.com/read/28803035/bone-tunnel-change-develops-within-two-weeks-of-double-bundle-anterior-cruciate-ligament-reconstruction-using-hamstring-autograft-a-comparison-of-different-postoperative-immobilization-periods-using-computed-tomography
#3
Ryo Shimizu, Nobuo Adachi, Minoru Ishifuro, Atsuo Nakamae, Masakazu Ishikawa, Masataka Deie, Mitsuo Ochi
BACKGROUND: The purpose of this study was to evaluate bone tunnel changes following anterior cruciate ligament (ACL) reconstruction during the early postoperative period using computed tomography (CT), and to understand the impact of postoperative immobilization on these changes. METHODS: Twenty patients who underwent double-bundle ACL reconstruction using hamstring tendon autografts were included. We subcategorized patients into two groups: patients who underwent isolated ACL reconstruction and had three days of knee immobilization (Group A, n=10); and patients with concomitant meniscus injuries who underwent ACL reconstruction and meniscus repair simultaneously (Group B, n=10) had their knees immobilized for two weeks after surgery...
August 9, 2017: Knee
https://www.readbyqxmd.com/read/28800855/radiographic-analysis-of-the-lower-limbs-using-the-hip-calcaneus-line-in-healthy-individuals-and-in-patients-with-varus-knee-osteoarthritis
#4
Toshikazu Tanaka, Koji Takayama, Shingo Hashimoto, Noriyuki Kanzaki, Shinya Hayashi, Ryosuke Kuroda, Tomoyuki Matsumoto
BACKGROUND: Several recent reports define the line from the centre of the femoral head to the lowest point of the calcaneus. The purpose of this study was to comparatively examine the usefulness of the hip-calcaneus (HC) line and hip-ankle (HA) line for the evaluation of lower-limb alignment in healthy individuals and in patients with osteoarthritis (OA). METHODS: Participants included 34 healthy individuals (mean age, 26.4years) and 34 patients with OA (mean age, 74...
August 8, 2017: Knee
https://www.readbyqxmd.com/read/28800854/up-to-seven-years-follow-up-of-short-cemented-stems-in-complex-primary-total-knee-arthroplasty-a-prospective-study
#5
Mathieu Angers-Goulet, Martin Bédard
BACKGROUND: Although primary total knee arthroplasty (TKA) shows good clinical, functional and radiological results, it can be complicated by certain conditions or pathologies. The main objective of this study was to evaluate the global performance of short cemented metaphyseal stem components in patients undergoing complex primary TKA. METHODS: This is a single-surgeon prospective case series of 91 patients who underwent complex primary TKA requiring short stem fixation between January 2009 and October 2014...
August 8, 2017: Knee
https://www.readbyqxmd.com/read/28800853/the-anterolateral-ligament-anatomic-implications-for-its-reconstruction
#6
Neri Thomas, Palpacuer Fabien, Testa Rodolphe, Bergandi Florian, Boyer Bertrand, Farizon Frederic, Philippot Remi
BACKGROUND: The purpose of this study was to define the best anatomic parameters with which to perform an accurate anterolateral ligament (ALL) reconstruction. These parameters were anatomical insertions, allowing favorable isometry, length variation during flexion, and anthropometric predictors of ALL lengths. METHODS: A total of 84 fresh-frozen cadaver knees were dissected to analyze the ALL, focusing on its femoral insertion. The ALL length was measured in different degrees of flexion (extension, 30°, 60°, and 90° of flexion) and rotation (neutral, internal or external rotation)...
August 8, 2017: Knee
https://www.readbyqxmd.com/read/28797875/success-rates-characteristics-and-costs-of-articulating-antibiotic-spacers-for-total-knee-periprosthetic-joint-infection
#7
Scott R Nodzo, Keely K Boyle, Sara Spiro, Allina A Nocon, Andy O Miller, Geoffrey H Westrich
BACKGROUND: The optimal type, characteristics, and success rates of articulating antibiotic spacers used during total knee arthroplasty (TKA) periprosthetic joint infection (PJI) have not been well defined in a single series. We sought to (1) determine the success rate for three unique spacer constructs and (2) evaluate any microbiological, surgical, or patient characteristics that would influence the success rate. METHODS: We retrospectively reviewed patients who underwent a two-stage exchange for a TKA PJI with a prefabricated spacer (PREFAB), home-made mold (MOLD), or autoclaved femoral component (AUTOCL)...
August 8, 2017: Knee
https://www.readbyqxmd.com/read/28797874/factors-affecting-articular-cartilage-repair-after-open-wedge-high-tibial-osteotomy
#8
Chang-Wan Kim, Seung-Suk Seo, Chang-Rack Lee, Heui-Chul Gwak, Jung-Han Kim, Sun-Gyu Jung
BACKGROUND: To evaluate the factors that affect articular cartilage repair after open-wedge high tibial osteotomy (OWHTO) and the relationship between regeneration of articular cartilage repair and clinical outcomes. METHODS: Among the cases of OWHTO that were performed from March 2005 to February 2012, the patients who followed up for >2years and received a second-look arthroscopy were retrospectively reviewed. For clinical evaluation, the Knee Society scores and Western Ontario and McMaster Universities Osteoarthritis Index score were measured...
August 8, 2017: Knee
https://www.readbyqxmd.com/read/28797880/smoking-is-associated-with-earlier-time-to-revision-of-total-knee-arthroplasty
#9
Chin Tat Lim, Stuart B Goodman, James I Huddleston, Alex H S Harris, Subhrojyoti Bhowmick, William J Maloney, Derek F Amanatullah
BACKGROUND: Smoking is associated with early postoperative complications, increased length of hospital stay, and an increased risk of revision after total knee arthroplasty (TKA). However, the effect of smoking on time to revision TKA is unknown. METHODS: A total of 619 primary TKAs referred to an academic tertiary center for revision TKA were retrospectively stratified according to the patient smoking status. Smoking status was then analyzed for associations with time to revision TKA using a Chi square test...
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28797879/using-a-non-invasive-secure-skin-closure-following-total-knee-arthroplasty-leads-to-fewer-wound-complications-and-no-patient-home-care-visits-compared-to-surgical-staples
#10
Alberto V Carli, Sara Spiro, Brian T Barlow, Steven B Haas
BACKGROUND: Superficial wound complications occur in up to 10% of total knee arthroplasty (TKA) procedures and have been associated with periprosthetic joint infection. The ideal material for TKA closure should offer: 1) fast intraoperative application, 2) minimal wound complications and 3) removable by patients without assistance. We evaluated a novel, non-invasive, removable skin closure system for TKA to determine its effect on wound complications. METHODS: We prospectively evaluated 221 consecutive TKA patients who received skin closure using a non-invasive zipper-like system ('Zip'; Zip 16 Surgical Skin Closure System; Zipline Medical)...
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28797878/reply-to-miller-et-al-2016
#11
LETTER
Hanatsu Nagano, Eri Sarashina, Ichiroh Tatsumi, W A Sparrow, Rezaul K Begg
No abstract text is available yet for this article.
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28797877/annual-trends-in-knee-arthroplasty-and-tibial-osteotomy-analysis-of-a-national-database-in-japan
#12
Manabu Kawata, Yusuke Sasabuchi, Hiroshi Inui, Shuji Taketomi, Hiroki Matsui, Kiyohide Fushimi, Hirotaka Chikuda, Hideo Yasunaga, Sakae Tanaka
BACKGROUND: Various nationwide studies have reported differing annual trends in utilization of knee arthroplasty and tibial osteotomy. Using the Diagnosis Procedure Combination database in Japan, the present series examined annual trends and demographics in total knee arthroplasty (TKA), unicompartmental knee arthroplasty (UKA) and tibial osteotomy. METHODS: All patients were identified who underwent TKA, UKA or tibial osteotomy for osteoarthritis, osteonecrosis or rheumatoid arthritis of the knee between July 2007 and March 2015...
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28797876/can-kinematic-tibial-templates-assist-the-surgeon-locating-the-flexion-and-extension-plane-of-the-knee
#13
Nikolaos K Paschos, Stephen M Howell, J Micheal Johnson, Mohamed R Mahfouz
PURPOSE: We performed virtual feasibility and in-vivo validation studies to test whether the use of a kinematic tibial template (KTT) assists the surgeon in accurately locating the orientation of the F-E of the knee with low bias and high precision. METHODS: With use of 166 3-dimensional bone models of normal knees, we designed seven KTTs that located the orientation of the F-E plane of the knee when best-fit within the cortical edge of the tibial resection. The virtual feasibility study asked 11 evaluators with different levels of surgical experience to use software and select, orient, and best-fit the KTT within the tibial resection of each bone model...
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28797873/radiographic-and-computed-tomographic-evaluation-of-bone-union-after-medial-opening-wedge-high-tibial-osteotomy-with-filling-gap
#14
Hideo Kobayashi, Yasushi Akamatsu, Ken Kumagai, Yoshihiro Kusayama, Tomoyuki Saito
BACKGROUND: We evaluated bone union and remodelling in patients undergoing opening-wedge high tibial osteotomy (OWHTO) with bone gaps filled with beta-tricalcium phosphate. We examined the effectiveness of radiography and computed tomography (CT) for the evaluation of bone union and remodelling, and investigated whether lateral hinge fractures affected bone union. METHODS: Sixty-six cases underwent OWHTO with a combination of a TomoFix plate and a bone substitute...
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28797872/the-diameter-of-single-bundle-hamstring-autograft-does-not-significantly-influence-revision-rate-or-clinical-outcomes-after-anterior-cruciate-ligament-reconstruction
#15
Gregory C Wernecke, Alex Constantinidis, Ian A Harris, Bradley G Seeto, Darren B Chen, Samuel J MacDessi
BACKGROUND: Anterior cruciate ligament (ACL) graft failure is a complication of ACL reconstruction (ALCR). Smaller autograft diameter may be a contributing factor. Our aim was to determine if hamstring autograft diameter influences graft rupture and patient-reported outcome scores. METHODS: This study included 786 consecutive patients undergoing primary, single bundle, autograft hamstring ACLR. The primary outcome was revision ACLR surgery. Secondary outcomes were patient reported International Knee Documentation Committee (IKDC) score, Knee Injury & Osteoarthritis Outcome Score (KOOS) and Tegner Activity score...
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28797871/factors-affecting-knee-laxity-following-anterior-cruciate-ligament-reconstruction-using-a-hamstring-tendon
#16
Shinya Yanagisawa, Masashi Kimura, Keiichi Hagiwara, Atsuko Ogoshi, Tomoyuki Nakagawa, Hiroyuki Shiozawa, Takashi Ohsawa
BACKGROUND: The aim of the present study was to investigate the correlation between the pre-operative and intraoperative factors that predict postoperative knee laxity following anterior cruciate ligament (ACL) reconstruction using a hamstring tendon. METHODS: The subjects included 108 patients (male, n=49; female, n=59) with ACL-deficient knees who had undergone double-bundle reconstruction. The median time between injury and surgery (TBIS) was 27.5weeks (range one to 504)...
August 7, 2017: Knee
https://www.readbyqxmd.com/read/28793979/outcome-of-prosthesis-matched-and-unmatched-patella-components-in-primary-and-revision-total-knee-replacement
#17
Peter L Lewis, Ai E Gamboa, David G Campbell, Michelle Lorimer
BACKGROUND: Although knee replacements have specifically designed patella prostheses that correspond to the geometry of their femoral components, a patella prosthesis that is unmatched to the femoral component may occasionally be inserted. In revision total knee arthroplasty (TKA), an originally resurfaced patella may be left, but the femoral component revised to one that does not match the patella. Few studies have compared the outcome of matched and unmatched patella components in TKA...
August 6, 2017: Knee
https://www.readbyqxmd.com/read/28793978/patellofemoral-arthroplasty-conversion-to-total-knee-arthroplasty-retrieval-analysis-and-clinical-correlation
#18
Alexander B Christ, Elexis Baral, Chelsea Koch, Beth E Shubin Stein, Alejandro Gonzalez Della Valle, Sabrina M Strickland
BACKGROUND: Patellofemoral arthroplasty (PFA) can be a successful, bone-sparing treatment for isolated patellofemoral arthritis. However, progression of tibio-femoral arthritis or incorrect indications may predispose patients to early conversion to total knee arthroplasty (TKA). The purpose of this study was to review the clinical cases and perform retrieval analysis of PFA conversions to TKA at our institution. METHODS: Twenty one patellofemoral arthroplasties in 18 patients that were converted to TKA were identified through our implant retrieval registry...
August 6, 2017: Knee
https://www.readbyqxmd.com/read/28793977/commentary-on-modelling-knee-flexion-effects-on-joint-power-absorption-and-adduction-moment
#19
LETTER
Ross H Miller, Scott C E Brandon, W Scott Selbie, Kevin J Deluzio
No abstract text is available yet for this article.
August 6, 2017: Knee
https://www.readbyqxmd.com/read/28793976/influence-of-implant-length-and-bone-defect-situation-on-primary-stability-after-distal-femoral-replacement-in-vitro
#20
Jan Nadorf, Simon B Klein, Simone Gantz, Eike Jakubowitz, Jan Philippe Kretzer, Oliver E Bischel
BACKGROUND: Aseptic loosening is the major reason for failure of distal femoral replacement using current modular megaprostheses. Although the same stems are used for proximal and distal replacement, survival rates in clinical studies with distal reconstruction were lower within the same system compared to proximal reconstruction. We analyzed whether primary stability as presupposition for long-term fixation can be achieved with a current tapered stem design. Additionally, we hypothesized that stem length affects primary stability depending on bone defect situations...
August 6, 2017: Knee
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