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Knee Surgery & related Research

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https://www.readbyqxmd.com/read/29298463/long-term-clinical-results-of-unicompartmental-knee-arthroplasty-in-patients-younger-than-60-years-of-age-minimum-10-year-follow-up
#1
Kyung Tae Kim, Song Lee, Jung Soo Lee, Min Su Kang, Ki Hyuk Koo
Purpose: To evaluate the long-term clinical results and survivorship of unicompartmental knee arthroplasty (UKA) in patients younger than 60 years of age. Materials and Methods: One hundred and six cases of medial UKA with a minimum follow-up of 10 years were selected for this study. There were 80 patients and the preoperative diagnosis was osteoarthritis in all cases. The mean age of the patients was 54.2 years and the mean duration of follow-up was 12.1 years...
January 4, 2018: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29298462/high-tibial-osteotomy-versus-unicompartmental-knee-arthroplasty-for-medial-compartment-arthrosis-with-kissing-lesions-in-relatively-young-patients
#2
Seung Min Ryu, Jae Woo Park, Ho Dong Na, Oog Jin Shon
Purpose: The purpose of this study is to compare the clinical and radiographic outcomes of high tibial osteotomy (HTO) and unicompartmental arthroplasty (UKA) in advanced medial compartment arthritis accompanied by kissing lesions in relatively young patients. Materials and Methods: Forty-five patients were divided into the HTO (n=23) and UKA (n=22) groups. Clinically, we evaluated the Lysholm knee scoring scale, visual analogue scale, Hospital for Special Surgery, and Western Ontario and McMaster Universities Osteoarthritis index scores preoperatively, 6 and 12 months postoperatively, and at the final follow-up...
January 4, 2018: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29298461/distal-femoral-varus-osteotomy-for-valgus-arthritis-of-the-knees-systematic-review-of-open-versus-closed-wedge-osteotomy
#3
REVIEW
Young Chan Kim, Jae-Hyuk Yang, Hyun Jung Kim, Tulyapruek Tawonsawatruk, Yong Suk Chang, Jong Seong Lee, Nikhil N Bhandare, Ki Seong Kim, Giorgio D G Delgado, Kyung Wook Nha
Purpose: The purpose of this review is to compare the clinical and radiological outcomes between open and closed wedge distal femoral varus osteotomy (DFO). Methods: A literature search of online databases (MEDLINE, EMBASE, and Cochrane Library database) was made in addition to manual search of major orthopedic journals. Data were searched from the time period of January 1990 to October 2016. A modified Coleman Methodology Score system was used to assess the methodologic quality of the included studies...
January 4, 2018: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172394/subchondral-insufficiency-fracture-in-the-lateral-compartment-of-the-knee-in-a-64-year-old-marathon-runner
#4
Vincent Vg An, Mathias van den Broek, Sam Oussedik
A 64-year-old marathon runner presented to our clinic with a history of worsening pain in her left knee. Following magnetic resonance imaging, the diagnosis of subchondral insufficiency fracture of the knee (SIFK) was made. A course of conservative management via bisphosphonates was initiated. The patient successfully recovered and returned to full athletic function, having recently returned to competitive marathon running. This article aims to present this unusual case of lateral compartment SIFK and summarise the literature on this uncommon condition...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172393/the-meniscofemoral-ligament-mimicking-a-lateral-meniscus-tear
#5
Bong Keun Park, Hohyoung Lee, Seong-Tae Kim, Min Geun Yoon
A 58-year-old male patient who had developed left knee pain with a history of trauma was referred to our hospital. Physical examination and further examination by magnetic resonance imaging revealed results that closely resemble a horizontal tear of the lateral meniscus and a tear of the medial meniscus. Arthroscopically, we found a cord-like structure originating from the posterior 1/3 portion of the lateral meniscus and passing obliquely toward the medial femoral condyle in front of the posterior cruciate ligament without a tear of the lateral meniscus...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172392/arthroscopic-pullout-fixation-for-a-small-and-comminuted-avulsion-fracture-of-the-posterior-cruciate-ligament-from-the-tibia
#6
Shuji Nakagawa, Yuji Arai, Kunio Hara, Hiroaki Inoue, Manabu Hino, Toshikazu Kubo
We describe a patient who underwent arthroscopic pullout fixation for a posterior cruciate ligament (PCL) avulsion fracture. A 46-year-old female, injured in a fall while riding a motorcycle, was diagnosed with a right knee PCL tibial attachment avulsion fracture and underwent arthroscopic osteosynthesis. A Kirschner wire was drilled to a point just medial to the medial border of the anterior tibial bony bed. A suture wire was folded into a loop and introduced into the posteromedial compartment via the bone tunnel...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172391/measurement-of-knee-rotation-angles-using-a-smartphone-application-an-experimental-study-of-porcine-knees
#7
Hee-June Kim, Hyun-Joo Lee, Ji-Yeon Shin, Young-Seo Choi, Hee-Soo Kyung
Purpose: This study evaluated the efficacy of a smartphone application in the measurement of rotation angles in porcine knees. Materials and Methods: Two K-wires were fixated to the femoral condyle and anterior tibial crest of 10 porcine legs. The angle created between the K-wires with an external rotation force applied was measured on a photograph and defined as the true angle. The same force was applied to the legs placed on a splint with a smartphone attached to the plantar side...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172390/meniscal-extrusion-progresses-shortly-after-the-medial-meniscus-posterior-root-tear
#8
Takayuki Furumatsu, Yuya Kodama, Yusuke Kamatsuki, Tomohito Hino, Yoshiki Okazaki, Toshifumi Ozaki
Purpose: Medial meniscus posterior root tears (MMPRT) induce medial meniscus extrusion (MME). However, the time-dependent extent of MME in patients suffering from the MMPRT remains unclear. This study evaluated the extent of MME after painful popping events that occurred at the onset of the MMPRT. Materials and Methods: Thirty-five patients who had an episode of posteromedial painful popping were investigated. All the patients were diagnosed as having an MMPRT by magnetic resonance imaging (MRI) within 12 months after painful popping...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172389/full-cementation-in-revision-total-knee-arthroplasty-using-a-constrained-condylar-knee-prosthesis-with-an-average-7-year-follow-up
#9
Ki-Tae Kwon, Kye-Young Han, Woon-Sang Lee, Do-Hoon Kim
Purpose: To evaluate clinical and radiological outcome of the full cementation technique in revision total knee arthroplasty (TKA) using a constrained condylar knee (CCK) prosthesis. Materials and Methods: Between January 2008 and March 2012, 18 cases (16 patients) of fully cemented revision TKA were performed using a CCK prosthesis. Fifteen cases of aseptic loosening (13 patients) and 3 cases of infection were included. There were 2 males and 14 females with a mean age of 76...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172388/does-combination-therapy-of-popliteal-sciatic-nerve-block-and-adductor-canal-block-effectively-control-early-postoperative-pain-after-total-knee-arthroplasty
#10
Jin-Hyeok Seo, Seung-Suk Seo, Do-Hun Kim, Byung-Yoon Park, Chan-Ho Park, Ok-Gul Kim
Purpose: We compared adductor canal block (ACB) alone and a combination of ACB and sciatic nerve block (SNB) to control early postoperative pain after total knee arthroplasty. Materials and Methods: One hundred patients received continuous ACB alone (group A), and another 100 patients received continuous ACB and single popliteal SNB (group B). Pain was evaluated at rest and 45° knee flexion using the numeric rating scale (NRS). The number of times the patient pressed the intravenous patient-controlled analgesia (PCA) button, total PCA volume infused, and the total dosage of additional analgesics were evaluated...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172387/comparison-of-an-accelerometer-based-portable-navigation-system-patient-specific-instrumentation-and-conventional-instrumentation-for-femoral-alignment-in-total-knee-arthroplasty
#11
Kohei Kawaguchi, Kazuhiko Michishita, Takeshi Manabe, Yoshiyuki Akasaka, Junya Higuchi
Purpose: The KneeAlign2 (KA2, OrthoAlign Inc.) accelerometer-based portable navigation system and patient-specific instrumentation (PSI; Signature, ZimmerBiomet) are widely used for ideal femoral component alignment in total knee arthroplasty (TKA). However, there has been no comparative study of the KA2 system, PSI, and conventional intramedullary instrumentation (CON). The purpose of this study was to compare the accuracy in achieving proper femoral component alignment and clinical features by using the KA2 navigation system, PSI, and CON...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172386/current-concepts-of-posterolateral-corner-injuries-of-the-knee
#12
REVIEW
Oog-Jin Shon, Jae-Woo Park, Beum-Jung Kim
The number of posterolateral corner (PLC) injury patients has risen owing to the increased motor vehicle accidents and sports activities. Careful examination is required because this injury is easy to overlook and may lead to chronic instability. The purpose of this article is to review the anatomy, biomechanics, diagnosis, classification and, treatment of PLC injuries and summarize the recent literatures regarding the treatment outcomes.
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172385/single-bundle-versus-double-bundle-posterior-cruciate-ligament-reconstruction-a-meta-analysis-of-randomized-controlled-trials
#13
REVIEW
Dong-Yeong Lee, Young-Jin Park
Purpose: This meta-analysis evaluated the benefits of single-bundle (SB) and double-bundle (DB) surgical techniques for posterior cruciate ligament reconstruction (PCLR) in terms of clinical outcomes. Methods: Five electronic databases were searched for relevant articles published until September 2016. Clinical outcomes of both techniques were evaluated using Lysholm knee function scores, Tegner activity scores, side-to-side differences, and International Knee Documentation Committee (IKDC) objective grades...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29172384/posterior-cruciate-ligament-reconstruction-and-posterolateral-corner-injury
#14
EDITORIAL
Young Mo Kim
No abstract text is available yet for this article.
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29046046/three-dimensional-evaluation-of-similarity-of-right-and-left-knee-joints
#15
Ki-Mo Jang, Jong-Hoon Park, Minho Chang, Youngjun Kim, Deukhee Lee, Sehyung Park, Joon Ho Wang
Purpose: The purpose of this study was to evaluate the anatomical similarity of three-dimensional (3D) morphometric parameters between right and left knees. Materials and Methods: Ten fresh-frozen paired cadaveric knees were tested. Following dissection, footprint areas of the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) were measured. Surface scanning was performed using a 3D scanner. Scanned data were reproduced and morphometric parameters were measured on specialized software...
October 19, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29046045/comparative-study-of-clinical-and-radiographic-outcomes-of-high-tibial-osteotomy-in-patients-with-kissing-lesions-and-non-kissing-lesions
#16
Oog-Jin Shon, Sang-Jin Park, Bum-Jin Shim, Dong-Yeol Lee
Purpose: High Outerbridge grade lesions of the articular cartilage have been associated with poor outcomes of high tibial osteotomy (HTO). However, there has been no report on the efficacy of HTO in the presence of kissing lesions. The purpose of this study was to compare clinical and radiographic outcomes of HTO between kissing lesion and non-kissing lesion groups. Materials and Methods: Of the patients with medial compartment osteoarthritis and varus deformity treated with HTO between 2007 and 2012, 21 cases with kissing lesions and 22 cases without kissing lesions were selected...
October 19, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28854771/discoid-medial-meniscus-tear-with-a-literature-review-of-treatments
#17
In Soo Song, Jun Bum Kim, Jong Keun Lee, Byeong-Seop Park
The present study reports our experience of treating four cases of symptomatic discoid medial meniscus, three of which were bilateral. We performed partial meniscectomy with a four-portal technique using a knife leaving a 6 mm peripheral margin after confirmation of magnetic resonance imaging findings. Clinical results were assessed at the end of 2-year follow-up using the Knee Injury and Osteoarthritis Outcome Score and a visual analogue scale. We obtained satisfactory clinical results without recurrence of the symptoms in all cases...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28854770/closed-wedge-distal-femoral-osteotomy-with-a-polyaxial-locking-plate-designed-for-the-proximal-tibia-minimum-5-year-outcomes
#18
Ryuichi Nakamura, Kenji Fujita, Rei Omi, Kazunari Kuroda, Masaki Takahashi, Kazumi Ikebuchi, Hitoshi Nishimura, Yasuo Katsuki
Since distal femoral varus osteotomy (DFO) -specific plates had not been available in Japan before 2015, we performed DFO using a plate for tibia. The purpose of this study was to elucidate the efficacy and problems associated with the non-specific plate in DFO. We used NCB-PT plates (Zimmer Inc.) in the upside-down position and the minimum 5-year outcomes were evaluated. The mean preoperative weight bearing line ratio and Japanese Orthopaedic Association score improved from 97.6%±35.8% and 68.0±11.5, respectively, to 44...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28854769/comparison-of-mechanical-axis-and-dynamic-range-assessed-with-weight-bearing-radiographs-and-navigation-system-in-closed-wedge-high-tibial-osteotomy
#19
Dae Kyung Bae, Jong Whan Lee, Seong Jin Cho, Sang Jun Song
Purpose: To compare navigation and weight bearing radiographic measurements of mechanical axis (MA) before and after closed wedge high tibial osteotomy (HTO) and to evaluate post-osteotomy changes in MA assessed during application of external varus or valgus force. Materials and Methods: Data from 30 consecutive patients (30 knees) who underwent computer-assisted closed-wedge HTO were prospectively analyzed. Pre- and postoperative weight bearing radiographic evaluation of MA was performed...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28854768/efficacy-of-joins-on-cartilage-protection-in-knee-osteoarthritis-prospective-randomized-controlled-trial
#20
Joong Il Kim, Ja Young Choi, Kwang Gi Kim, Myung Chul Lee
Purpose: In this study, we compared the clinical efficacy of JOINS (SKI306X, SK Chemicals) with placebo on cartilage protection using magnetic resonance imaging (MRI). Materials and Methods: Sixty-nine patients were randomized to the JOINS group (200 mg, three times daily for 1 year; n=33) or the placebo group (n=36). Changes in cartilage volume and thickness were measured using MRI. Changes in the delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) index, subchondral bone marrow abnormality scores, and clinical scores including knee pain visual analog scale (VAS) score and Korean Western Ontario and McMaster Universities Osteoarthritis Index (K-WOMAC) were also evaluated...
September 1, 2017: Knee Surgery & related Research
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