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Knee Surgery & related Research

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https://www.readbyqxmd.com/read/28231653/implantless-fixation-of-a-large-osteocartilaginous-fracture-of-the-lateral-femoral-condyle-in-a-child
#1
Jitendra Maheshwari, Vikram Mhaskar, Parul Maheshwari Mhaskar
We describe for the first time a case of lateral femoral condyle fracture following a fall in a 13-year-old child that was reduced arthroscopically using a probe. It was definitively fixed with 0 vicryl sutures in a cruciate pattern after being initially stabilised with 1.5-mm Kirschner wires. Four beath pins carrying sutures were drilled at four opposing quadrants through the reduced fragment into the femur. The sutures were then tied on the lateral cortex of the femur. After fixation, the child was kept non-weight bearing for 6 weeks, partial weight bearing from 6 weeks to 12 weeks and then full weight bearing thereafter...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231652/fibrous-dysplasia-in-the-epiphysis-of-the-distal-femur
#2
Jung Ho Noh, Jae Woo Lee
Fibrous dysplasia is a common benign skeletal lesion that may involve a single bone or multiple bones. Although fibrous dysplasia can affect any bone, monostotic fibrous dysplasia of the long bone typically occurs in the diaphysis or metaphysis. We report a very rare case of monostotic fibrous dysplasia involving the epiphysis of the distal femur in a young man.
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231651/radiographic-measurement-of-joint-space-width-using-the-fixed-flexion-view-in-1-102-knees-of-japanese-patients-with-osteoarthritis-in-comparison-with-the-standing-extended-view
#3
Hiroyuki Kan, Yuji Arai, Masashi Kobayashi, Shuji Nakagawa, Hiroaki Inoue, Manabu Hino, Shintaro Komaki, Kazuya Ikoma, Keiichiro Ueshima, Hiroyoshi Fujiwara, Toshikazu Kubo
Purpose: The fixed flexion view (FFV) of the knee is considered useful for evaluating the joint space when assessing the severity of osteoarthritis (OA) of the knee. To clarify the usefulness of FFV for evaluation of the joint space and severity of knee OA, this study evaluated changes in the joint space on the FFV and standing extended view (SEV) in patients with knee OA. Materials and Methods: The SEV and FFV images were acquired in 567 patients (1,102 knees) who visited the hospital with a chief complaint of knee joint pain...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231650/blood-sparing-efficacy-of-oral-tranexamic-acid-in-primary-total-knee-arthroplasty-a-randomized-controlled-trial
#4
Qunn Jid Lee, Wai Yee Ching, Yiu Chung Wong
Purpose: Tranexamic acid (TXA) is effective in reducing blood loss in primary total knee replacement. Almost all studies used an intravenous form or a topical form. The aim of this study was to assess the blood sparing efficacy and the safety of oral TXA. Materials and Methods: All patients with primary total knee replacement performed in our institute from January 2015 to October 2015 were eligible. Oral TXA group was given 1 g oral TXA 2 hours before induction of anesthesia and 6 hours and 12 hours postoperatively...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231649/optimal-timing-for-hemoglobin-concentration-determination-after-total-knee-arthroplasty-day-1-versus-day-2
#5
Mahdi Yacine Khalfaoui, Charles Godavitarne, Michael C P Wilkinson
Purpose: Postoperative hemoglobin (Hb) determination remains an essential parameter for quantifying blood loss following total knee replacement (TKR) surgery and guiding transfusion practice. In this study we aimed to ascertain the optimal timing for Hb determination postoperatively and assess its relationship to serum hematocrit (Hct). Materials and Methods: This was a retrospective cohort analysis of 61 consecutive patients undergoing preoperative, day 1 and day 2 Hb and Hct concentration determination following TKR surgery...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231648/evaluation-of-infection-after-anterior-cruciate-ligament-reconstruction-during-a-short-period
#6
Hee-June Kim, Hyun-Joo Lee, Jong-Chul Lee, Seung-Gi Min, Hee-Soo Kyung
Purpose: We encountered 7 cases (7.1%) of infection (5 deep and 2 superficial) in 98 cases of anterior cruciate ligament (ACL) reconstruction using hamstring autografts in a 17-month period. The aim of this study was to analyze the causes of infection and to introduce our treatment strategy. Materials and Methods: We investigated the shelf-life of the fixation implants, the order of surgery, previous knee surgery, infectious pathogen, treatment of infection, and results of treatment...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231647/outcome-of-acl-reconstruction-for-chronic-acl-injury-in-knees-without-the-posterior-horn-of-the-medial-meniscus-comparison-with-acl-reconstructed-knees-with-an-intact-medial-meniscus
#7
Kevin Syam, Devendra K Chouhan, Mandeep Singh Dhillon
Purpose: Cadaveric studies have shown that deficiency of the posterior horn of the medial meniscus (PHMM) increases strain on the anterior cruciate ligament (ACL) graft. However, its influence on the clinical and radiological outcome after ACL reconstruction is less discussed and hence evaluated in this study. Materials and Methods: This study included 77 cases of ACL reconstruction with a minimum 18-month follow-up. Of the 77 cases, 41 patients with intact menisci were compared clinically and radiologically with 36 patients with an injury to the PHMM that required various grades of meniscectomy...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231646/arthroscopic-control-for-safe-and-secure-seating-of-suspensory-devices-for-femoral-fixation-in-anterior-cruciate-ligament-reconstruction-using-three-different-techniques
#8
Seo Goo Kang, Yong Seuk Lee
Purpose: The purpose of this study was to evaluate the efficacy of our technique that allows direct visualization of seating of suspensory devices in anterior cruciate ligament (ACL) reconstruction. Materials and Methods: Three different suspensory devices (TightRope RT, RetroButton, and EndoButton) were used in ACL reconstruction using 3 different techniques (outside-in, anteromedial [AM] portal, and transtibial techniques). Positioning of a guiding material and seating pattern of the suspensory devices were evaluated according to the surgical technique and suspensory device used...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231645/the-effect-of-different-sagittal-angles-of-the-tibial-guide-on-aperture-widening-of-the-tibial-tunnel-during-modified-transtibial-anterior-cruciate-ligament-reconstruction-a-randomized-in-vivo-study
#9
Young Chan Kim, Tulyapruek Tawonsawatruk, Hyeong Hwa Woon, Ji Woong Yum, Myung Jin Shin, Rodolfo S Bravo, Kyung Wook Nha
Purpose: The effect of sagittal plane angle of the tibial tunnel on the severity of tibial intra-articular aperture expansion caused by iatrogenic re-reaming in anterior cruciate ligament (ACL) reconstruction using a modified transtibial technique is unknown. The purpose of this study was to compare the severity of intra-articular aperture widening at different angles (40°, 45°, and 50°) of the tibial guide (TG). Materials and Methods: Ninety-seven patients who underwent modified transtibial ACL reconstruction were randomly allocated to TG 40°, 45°, and 50° groups...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231644/mid-term-outcomes-of-anterior-cruciate-ligament-reconstruction-with-far-anteromedial-portal-technique
#10
Yoon Sang Jeon, Sung Wook Choi, Ju Hyun Park, Jae Sik Yoon, Jung Sub Shin, Myung Ku Kim
Purpose: The purpose of this study was to evaluate the mid-term outcomes of anatomic anterior cruciate ligament (ACL) reconstruction using two anteromedial (AM) portals by comparing with short-term follow-up results. Materials and Methods: Fifty patients who were treated by ACL reconstruction using a two AM portal technique were evaluated retrospectively. The follow-up period was at least 5 years. The mean follow-up period was 68.5±13.9 months. The mid-term clinical outcomes were compared with short-term (≥12 months) results...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231643/three-dimensional-reconstruction-computed-tomography-evaluation-of-the-tunnel-location-and-angle-in-anatomic-single-bundle-anterior-cruciate-ligament-reconstruction-a-comparison-of-the-anteromedial-portal-and-outside-in-techniques
#11
Kang-Il Kim, Sang Hak Lee, Chanil Bae, Sung Hae Bae
Purpose: The purpose of this study was to compare the geometry and position of the femoral tunnel between the anteromedial portal (AMP) and outside-in (OI) techniques after anatomic single-bundle anterior cruciate ligament (ACL) reconstruction. Materials and Methods: We evaluated 82 patients undergoing single-bundle ACL reconstruction with hamstring autografts using either the AMP (n=40) or OI (n=42) technique. The locations of the tunnel apertures were assessed by postoperative 3-dimensional computed tomography imaging...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231642/meniscal-transplants-and-scaffolds-a-systematic-review-of-the-literature
#12
REVIEW
Sean Dangelmajer, Filippo Familiari, Roberto Simonetta, Mehmet Kaymakoglu, Gazi Huri
The reported incidence of meniscal tears is approximately 61 per 100,000. In instances where preservation of the native meniscus is no longer a feasible option, meniscal allograft transplantation (MAT) and implants or scaffolds may be considered. The goal of this review was to compare the success and failure rates of two techniques, MAT and meniscal scaffolds, and make an inference which treatment is more preferable at the present time and future. Studies that met inclusion criteria were assessed for technique used, type of transplant used, number of procedures included in the study, mean age of patients, mean follow-up time, number of failures, failure rate, and reported reoperation rate...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231641/have-evolving-surgical-methods-improved-clinical-outcomes-after-anterior-cruciate-ligament-reconstruction
#13
EDITORIAL
Seong-Il Bin
No abstract text is available yet for this article.
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894182/medial-and-lateral-discoid-menisci-of-both-knees
#14
Hiroyuki Kan, Yuji Arai, Shuji Nakagawa, Hiroaki Inoue, Ginjiro Minami, Kazuya Ikoma, Hiroyoshi Fujiwara, Toshikazu Kubo
Discoid menisci on both the medial and lateral sides are rare, and there are very few reports on cases involving both sides. We report a case of a 52-year-old female with medial and lateral discoid menisci in both knees. Arthroscopy revealed the lateral menisci of both knees were complete discoid menisci, and partial meniscectomy was performed. The medial menisci were incomplete discoid menisci, but there were no findings of abnormal mobility or injury; therefore, the medial menisci were observed without treatment...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894181/total-knee-arthroplasty-for-severe-flexion-contracture-in-rheumatoid-arthritis-knees
#15
Youn Soo Hwang, Kyu Pill Moon, Kyung Taek Kim, Jin Wan Kim, Won Seok Park
Flexion contracture deformities, as well as severe varus and valgus deformities of the knee joint, accompany osteoarthritis or rheumatoid arthritis (RA). In particular, severe flexion contracture deformity of the knee joint is often found in patients with RA, which renders them nonambulatory. This report describes a 26-year-old female patient diagnosed with RA 10 years ago. She had chronic joint pain, severe flexion contracture, valgus deformity in both knees, and limited range of motion in both knees and became nonambulatory...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894180/causes-of-failure-of-anterior-cruciate-ligament-reconstruction-and-revision-surgical-strategies
#16
Paolo Di Benedetto, Enrico Di Benedetto, Andrea Fiocchi, Alessandro Beltrame, Araldo Causero
Purpose: Long-term outcomes of anterior cruciate ligament (ACL) reconstruction are good or excellent; however, 0.7%-20% of patients suffer from recurrent instability due to graft failure. The purpose of this paper was to analyse failure aetiology and the possibilities of revision surgical strategies, with a description of our experience. We obtained optimal and good results in most of our patients. Materials and Methods: We retrospectively reviewed 42 patients who underwent revision surgery (43 revisions) due to relapsing instability after ACL reconstruction between 2006 and 2015...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894179/availability-of-total-knee-arthroplasty-implants-for-metal-hypersensitivity-patients
#17
Sanil Harji Ajwani, Charalambos P Charalambous
Purpose: To provide information on the type of "hypersensitivity-friendly" components available for primary total knee arthroplasty (TKA) in the current market. Materials and Methods: Implant manufactures were identified using the 2013 National Joint Registries of the United Kingdom and Sweden and contacted to obtain information about the products they offer for patients with metal hypersensitivity. Results: Information on 23 TKA systems was provided by 13 implant manufacturers...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894178/comparison-of-radiological-parameters-between-normal-and-patellar-dislocation-groups-in-korean-population-a-rotational-profile-ct-based-study
#18
Jatin Prakash, Jong-Keun Seon, Seong-Hwan Woo, Cheng Jin, Eun-Kyoo Song
Purpose: Patellofemoral instability is a common cause of anterior knee pain in adolescents and young adults. Most normal and pathological values for diagnosing patellofemoral instability are based on Western literature. We conducted this radiological study to determine normal values for different patellofemoral parameters in a Korean population and to evaluate their usefulness in diagnosis. Materials and Methods: We retrospectively reviewed the rotational profile computerized tomography (CT) scans of the patellar dislocation and control groups...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894177/variability-of-measurement-of-patellofemoral-indices-with-knee-flexion-and-quadriceps-contraction-an-mri-based-anatomical-study
#19
Edward Laugharne, Navi Bali, Sanjay Purushothamdas, Faris Almallah, Rik Kundra
Purpose: The purpose of this study was to investigate the impact of varying knee flexion and quadriceps activity on patellofemoral indices measured on magnetic resonance imaging (MRI). Materials and Methods: MRI of the knee was performed in 20 patients for indications other than patellar or patellofemoral pathology. Axial and sagittal sequences were performed in full extension of the knee with the quadriceps relaxed, full extension of the knee with the quadriceps contracted, 30° flexion of the knee with the quadriceps relaxed, and 30° flexion with the quadriceps contracted...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894176/complications-and-short-term-outcomes-of-medial-opening-wedge-high-tibial-osteotomy-using-a-locking-plate-for-medial-osteoarthritis-of-the-knee
#20
Seung-Suk Seo, Ok-Gul Kim, Jin-Hyeok Seo, Do-Hoon Kim, Youn-Gu Kim, In-Seung Lee
Purpose: The purpose of this study was to investigate complications and radiologic and clinical outcomes of medial opening wedge high tibial osteotomy (MOWHTO) using a locking plate. Materials and Methods: This study reviewed 167 patients who were treated with MOWHTO using a locking plate from May 2012 to June 2014. Patients without complications were classified into group 1 and those with complications into group 2. Medical records, operative notes, and radiographs were retrospectively reviewed to identify complications...
December 1, 2016: Knee Surgery & related Research
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