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Knee Surgery & related Research

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https://www.readbyqxmd.com/read/27894182/medial-and-lateral-discoid-menisci-of-both-knees
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
https://www.readbyqxmd.com/read/27894175/comparison-of-cable-method-and-miniaci-method-using-picture-archiving-and-communication-system-in-preoperative-planning-for-open-wedge-high-tibial-osteotomy
#8
Seong-Dae Yoon, GuoFeng Zhang, Hee-June Kim, Byoung-Joo Lee, Hee-Soo Kyung
Purpose: The purpose was to compare the accuracy of Miniaci method using picture archiving and communication system (PACS) with a cable method in high tibial osteotomy (HTO). Materials and Methods: This study analyzed 47 patients (52 knees) with varus deformity and medial osteoarthritis. From 2007 to 2013, patients underwent HTO using either a cable method (20 knees) or Miniaci method based on a PACS image (32 knees). In the cable method, the 62.5% point of the mediolateral tibial plateau width was located using an electrocautery cord under fluoroscopy (cable group)...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894174/modified-iliac-crest-reconstruction-with-bone-cement-for-reduction-of-donor-site-pain-and-morbidity-after-open-wedge-high-tibial-osteotomy-a-prospective-study
#9
Jong Seong Lee, Yong Jee Park, Lih Wang, Yong Suk Chang, Gautam M Shetty, Kyung Wook Nha
Purpose: This study was to determine the efficacy of iliac crest reconstruction using bone cement in reducing pain and morbidity at the donor site in patients undergoing open wedge high tibial osteotomy (OWHTO) with tricortical iliac crest autologous graft. Materials and Methods: Thirty-three patients who underwent iliac crest reconstruction using polymethyl methacrylate (PMMA) bone cement (group A) and thirty patients who had no iliac crest reconstruction (group B) were enrolled in this study...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894173/open-wedge-high-tibial-osteotomy-and-combined-arthroscopic-surgery-in-severe-medial-osteoarthritis-and-varus-malalignment-minimum-5-year-results
#10
Moon-Jib Yoo, Yong-Eun Shin
Purpose: To evaluate the radiologic and functional outcomes of medial open wedge high tibial osteotomy (HTO) combined with arthroscopic procedure in patients with medial osteoarthritis. Materials and Methods: From June 1996 to March 2010, 26 patients (32 knees) who underwent medial open wedge osteotomy and arthroscopic operation for medial osteoarthritis were retrospectively reviewed. Measurements included hip-knee-ankle (HKA) angle, femorotibial angle, medial proximal tibial angle, posterior tibial slope angle, and Kellgren-Lawrence grade...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894172/the-spect-ct-evaluation-of-compartmental-changes-after-open-wedge-high-tibial-osteotomy
#11
Tae Won Kim, Byung Kag Kim, Dong Whan Kim, Jae Ang Sim, Beom Koo Lee, Yong Seuk Lee
Purpose: The purpose of this study was to evaluate compartmental changes using combined single-photon emission computerized tomography and conventional computerized tomography (SPECT/CT) after open wedge high tibial osteotomy (OWHTO) for providing clinical guidance for proper correction. Materials and Methods: Analysis was performed using SPECT/CT from around 1 year after surgery on 22 patients who underwent OWHTO. Postoperative mechanical axis was measured and classified into 3 groups: group I (varus), group II (0°-3° valgus), and group III (>3° valgus)...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894171/diagnosis-and-treatment-of-discoid-meniscus
#12
REVIEW
Jae-Gyoon Kim, Seung-Woo Han, Dae-Hee Lee
There is a greater incidence of discoid meniscus in Asian countries than in Western countries, and bilateral discoid menisci are also common. The discoid meniscus may be a congenital anomaly, and genetics or family history may play a role in the development of discoid menisci. Because the histology of discoid meniscus is different from that of normal meniscus, it is prone to tearing. Individuals with a discoid meniscus can be asymptomatic or symptomatic. Asymptomatic discoid menisci do not require treatment...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894170/high-tibial-osteotomy-for-medial-knee-osteoarthritis
#13
EDITORIAL
Hee-Soo Kyung
No abstract text is available yet for this article.
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27595081/synovial-sarcoma-mimicking-myositis-ossificans
#14
Mehmet Sabri Balik, Adem Erkut, Yılmaz Guvercin, Recep Bedir
A calcification mass was incidentally found in the soft tissue of a patient who had a history of trauma to the extremity during examination. The patient had no symptom. The pathological analysis of the mass revealed it was an early-phase synovial sarcoma (SS). The diagnosis was made before the onset of symptoms and proper surgical intervention was performed. Therefore, in case of a <1 cm lesion clinically suspicious of myositis ossificans, SS should be taken into consideration as a possible diagnosis.
September 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27595080/anterolateral-meniscofemoral-ligament-of-the-lateral-meniscus
#15
Young-Mo Kim, Yong-Bum Joo, Kyu-Woong Yeon, Ki-Young Lee
Anatomical variations of the meniscus are a common anomaly that knee surgeons frequently encounter. However, anomalies of the anterior horn of the lateral meniscus (AHLM) are extremely rare. In this report, we present a newly discovered anomaly of the AHML: an anterolateral meniscofemoral ligament is described with clinical features and radiographic and arthroscopic findings.
September 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27595079/use-of-a-new-knee-prosthesis-as-an-articulating-spacer-in-two-stage-revision-of-infected-total-knee-arthroplasty
#16
Rasmus Juul, Jesper Fabrin, Klaus Poulsen, Henrik Morville Schroder
PURPOSE: To report our experience with two-stage revision using a new femoral component (NFC) spacer (Depuy Synthes) as an articulating spacer. MATERIALS AND METHODS: In this retrospective study, we reviewed 22 two-stage revisions that were performed using an NFC spacer in 22 patients suspected of having an infected total knee arthroplasty (TKA) from December 2010 to March 2013. The result was considered successful when eradication of infection was achieved using only one NFC spacer...
September 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27595078/comparative-effects-of-periarticular-multimodal-drug-injection-and-single-shot-femoral-nerve-block-on-pain-following-total-knee-arthroplasty-and-factors-influencing-their-effectiveness
#17
Shuji Nakagawa, Yuji Arai, Hiroaki Inoue, Hiroyuki Kan, Manabu Hino, Shohei Ichimaru, Kazuya Ikoma, Hiroyoshi Fujiwara, Fumimasa Amaya, Teiji Sawa, Toshikazu Kubo
PURPOSE: This study compared the analgesic effects of local infiltration analgesia (LIA) and femoral nerve block (FNB) after total knee arthroplasty (TKA) and assessed factors associated with analgesia obtained by these two methods. MATERIALS AND METHODS: Study subjects included 66 patients (72 knees) who underwent TKA for osteoarthritis of the knee. Pain visual analogue scale (VAS), the amount of analgesics used, number of days to achieve 90° of flexion of the knee joint, date of initiating parallel-bar walking, range of motion of the knee joint at discharge, and adverse events were investigated...
September 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27595077/arthroscopic-meniscectomy-for-medial-meniscus-horizontal-cleavage-tears-in-patients-under-age-45
#18
Jae Gyoon Kim, Seung-Yup Lee, Suhwoo Chay, Hong Chul Lim, Ji-Hoon Bae
PURPOSE: The purpose of this study was to evaluate the demographics, clinical features, and outcomes of arthroscopic partial meniscectomy (APM) for isolated medial meniscus horizontal cleavage tears (MMHCTs) in patients under 45 years of age. MATERIALS AND METHODS: We retrospectively reviewed 98 patients (100 knees) under 45 years who underwent APM for MMHCTs. Clinical outcomes were assessed using International Knee Document Committee (IKDC) subjective core, Tegner activity scale, visual analog scale (VAS) pain score, and a question on the symptom relief...
September 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27595076/quality-of-life-and-functional-independence-in-patients-with-osteoarthritis-of-the-knee
#19
Ivan Luis Andrade Araujo, Martha Cavalcante Castro, Carla Daltro, Marcos Almeida Matos
PURPOSE: To verify the association between functional independence (FI) and quality of life (QOL) in patients with knee osteoarthritis. MATERIALS AND METHODS: A cross-sectional study composed of 93 patients with knee osteoarthritis was performed. Osteoarthritis was stratified according the classification of Ahlbach. For evaluation of the patient's overall FI, the Barthel index was used. The patient's QOL was measured by means of the Medical Outcomes Study 36-Item Short Form Health Survey (SF-36) questionnaire...
September 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27595075/incidences-of-deep-vein-thrombosis-and-pulmonary-embolism-after-total-knee-arthroplasty-using-a-mechanical-compression-device-with-and-without-low-molecular-weight-heparin
#20
Sin Hyung Park, Joong Hyeon Ahn, Yong Bok Park, Sun Geun Lee, Soo Jae Yim
PURPOSE: To investigate the incidence of thromboembolic events and complications related to bleeding after total knee arthroplasty (TKA) with a mechanical compression device alone or in combination with low-molecular-weight heparin (LMWH). MATERIALS AND METHODS: A total of 489 TKA patients (776 knees) were retrospectively reviewed for the incidence of thromboembolic events and complications related to bleeding. While 233 patients (354 knees) were treated with a mechanical compressive device without LMWH, 256 patients (422 knees) were treated with the mechanical compressive device along with LMWH...
September 2016: Knee Surgery & related Research
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