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knee joint

Nishit Bhatnagar, Siddharth Sharma, Virender Kumar Gautam, Ajeet Kumar, Anurag Tiwari
PURPOSE: Spontaneous osteonecrosis of the knee affects the medial femoral condyle in patients above 55 years of age. Many reports and studies are available from western countries. But there is a gross paucity of literature on spontaneous osteonecrosis of the knee (SPONK) in the Indian subcontinent, either it is under-reported or detected at a later stage. The aim of our study was to detect SPONK in Indian population and describe its characteristics, treatment, and outcome. MATERIAL AND METHOD: A prospective study was conducted over a period of three years...
March 18, 2018: International Orthopaedics
Marie E Boo, J Craig Garrison, Joseph P Hannon, Kalyssa M Creed, Shiho Goto, Angellyn N Grondin, James M Bothwell
Background: Female patients are more likely to suffer a second anterior cruciate ligament (ACL) injury after ACL reconstruction (ACLR) and return to sport (RTS) compared with healthy female controls. Few studies have examined the energy absorption contribution (EAC) that could lead to this subsequent injury. Hypothesis: The ACLR group would demonstrate an altered EAC between joints (hip, knee, and ankle) but no difference in quadriceps, hip abduction, or hip external rotation (ER) strength at the time of RTS...
March 2018: Orthopaedic Journal of Sports Medicine
Tetsuro Ushio, Ken Okazaki, Hideki Mizu-Uchi, Satoshi Hamai, Yukio Akasaki, Yasuharu Nakashima
Background: An anterior cruciate ligament (ACL) reconstruction has become more common and the surgical morbidity has decreased, it has been performed not only in younger people to play sports but also middle-aged people, with satisfactory results. Therefore, some patients might have comorbidities for which they take medicines. Especially the medicines, such as systemic steroids, might influence the reconstructed ligament strength and durability. Case report: A 49-year-old woman who was taking oral steroids for autoimmune hepatitis suffered a spontaneous ACL injury...
January 2018: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
Boguslaw Sadlik, Grzegorz Jaroslawski, Mariusz Puszkarz, Adrian Blasiak, Tomasz Oldak, Dominika Gladysz, Graeme P Whyte
Cell-based cartilage repair procedures are becoming more widely available and have shown promising potential to treat a wide range of cartilage lesion types and sizes, particularly in the knee joint. More recently, techniques have evolved from 2-step techniques that use autologous chondrocyte expansion to 1-step techniques that make use of mesenchymal stem cells (MSCs) embedded onto biocompatible scaffolding. Our 1-step technique has been further developed to provide cell-based cartilage repair using MSCs that have the potential to be used in an off-the-shelf manner, without the need for autologous tissue harvest...
January 2018: Arthroscopy Techniques
Michael A Zacchilli, Amos Z Dai, Eric J Strauss, Laith M Jazrawi, Robert J Meislin
The meniscus plays a vital role in knee biomechanics, and its physical absence or functional incompetence (e.g., irreparable root or radial tear) leads to unacceptably high rates of joint degeneration in affected populations. Meniscal allograft transplantation has been used successfully to treat patients with postmeniscectomy syndrome, and there is early laboratory and radiographic evidence hinting at a potential prophylactic role in preventing joint degeneration. We present a technique for lateral meniscal allograft transplantation using the CONMED Meniscal Allograft Transplantation system...
December 2017: Arthroscopy Techniques
Joseph T Patterson, Kyle Tillinghast, Derek Ward
BACKGROUND: Limited data describe risks and perioperative resource needs of total joint arthroplasty (TJA) in dialysis-dependent patients. METHODS: Retrospective multiple cohort analysis of dialysis-dependent American College of Surgeons National Surgical Quality Improvement Program patients undergoing primary elective total hip and knee arthroplasty compared to non-dialysis-dependent controls from 2005 to 2015. Relative risks (RRs) of 30-day adverse events were determined by multivariate regression adjusting for baseline differences...
February 17, 2018: Journal of Arthroplasty
Javad Parvizi, Timothy L Tan, Karan Goswami, Carlos Higuera, Craig Della Valle, Antonia F Chen, Noam Shohat
BACKGROUND: The introduction of the Musculoskeletal Infection Society (MSIS) criteria for periprosthetic joint infection (PJI) in 2011 resulted in improvements in diagnostic confidence and research collaboration. The emergence of new diagnostic tests and the lessons we have learned from the past 7 years using the MSIS definition, prompted us to develop an evidence-based and validated updated version of the criteria. METHODS: This multi-institutional study of patients undergoing revision total joint arthroplasty was conducted at 3 academic centers...
February 26, 2018: Journal of Arthroplasty
Daniel D Bohl, Nathaniel T Ondeck, Brian Darrith, Charles P Hannon, Yale A Fillingham, Craig J Della Valle
BACKGROUND: Little is known regarding the impact of operative time on adverse events following arthroplasty. The present study tests for associations between a 15-minute increase in operative time and the occurrence of adverse events following primary total joint arthroplasty. METHODS: Patients undergoing primary total hip or knee arthroplasty during 2006-2013 were identified in the American College of Surgeons National Surgical Quality Improvement Program. Operative time (as a continuous variable) was tested for association with perioperative outcomes using multivariate regression...
February 17, 2018: Journal of Arthroplasty
J B Seeger, J P Schikschneit, C Schuld, R Rupp, M Rickert, A Jahnke, G S Maier, M Clarius
BACKGROUND: Unicompartmental knee arthroplasty (UKA) is an effective treatment for patients with medial osteoarthritis of the knee joint. Instrumented gait analysis provides an objective measure to quantify and qualify postoperative changes of gait. The purpose of this study was to evaluate standardized instrumented gait analysis for functional recovery and gait as an outcome of mobile-bearing UKA in patients with medial osteoarthritis of the knee. METHODS: Twenty-one patients with isolated medial osteoarthritis of the knee joint received mobile-bearing UKA...
March 15, 2018: Knee
Hans-Peter W van Jonbergen, Robin E Westerbeek
BACKGROUND: Clinical outcomes in patellofemoral joint replacement may be related to femoral component rotation. Assessment of rotational alignment is however difficult as patients with isolated patellofemoral osteoarthritis often have trochlear dysplasia. The use of the medial malleolus as a landmark to guide rotation has been suggested. The purpose of our study was to evaluate this technique with regard to femoral component rotation, and to correlate rotation with clinical outcomes at one-year follow-up...
March 15, 2018: Knee
Hiroyuki Awano, Chieko Itoh, Yasuhiro Takeshima, Tomoko Lee, Masaaki Matsumoto, Akihiro Kida, Toshihiko Kaise, Takeo Suzuki, Masafumi Matsuo
INTRODUCTION: Few long-term cohort studies have addressed changes in the ambulatory capacity of patients with Duchenne muscular dystrophy (DMD), and no reports have evaluated the factors associated with ambulatory capacity in Japanese. METHODS: The longitudinal changes in 10-meter run/walk ability and associated factors were retrospectively investigated using general practice data. The factors associated with loss of this ability before the age of 10 years were explored by logistic regression analysis using parameters of genetic mutations, corticosteroid use, the manual muscle test (MMT), and the joint range of motion (ROM)...
March 15, 2018: Brain & Development
Simona Hosp, Robert Csapo, Dieter Heinrich, Michael Hasler, Werner Nachbauer
BACKGROUND: Maintaining balance is an essential requirement for the performance of daily tasks and sporting activities, particularly in older adults to prevent falls and associated injuries. Kinesiology tape has gained great popularity in sports and is frequently used as a tool for performance enhancement. However, there is little research investigating its influence on balance. RESEARCH QUESTION: The purpose of this study was to evaluate the effect of Kinesiology tape on dynamic balance, postural stability and knee proprioception after physical activity in healthy, older adults...
March 10, 2018: Gait & Posture
Stephen Yu, Matthew Siow, Khalid Odeh, William J Long, Ran Schwarzkopf, Richard Iorio
BACKGROUND: Periprosthetic joint infection following total knee arthroplasty (TKA) is a serious complication often related to obesity which leads to poor patient outcomes and increased resource utilization. A periarticular soft tissue index (PASTI) may help predict postoperative wound complications than BMI alone. METHODS: Three hundred seventy-six TKA patients with a preoperative, lateral knee X-ray radiograph and 1 year of follow up were analyzed. We used 2 pairs of soft tissue and bony measurements, one referencing the femur and the other the tibia...
February 17, 2018: Journal of Arthroplasty
Luke P Dawson, Jessica L Fairley, Michelle C Papandony, Sultana Monira Hussain, Flavia M Cicuttini, Anita E Wluka
OBJECTIVE: Diabetes (DM) and osteoarthritis (OA) are two common co-existing chronic conditions. However, whether this is due to shared risk factors or may differ between joints is unclear. We performed a systematic review to determine whether abnormal glucose metabolism is a risk factor for knee, hip and hand OA, separately, independent of age and obesity. METHODS: A systematic search of Ovid Medline and EMBASE was performed from inception until October 2016 to identify studies relating glucose metabolism to osteoarthritis-related outcomes...
February 21, 2018: Seminars in Arthritis and Rheumatism
A M Vilardell, N Cinca, N Garcia-Giralt, S Dosta, I G Cano, X Nogués, J M Guilemany
Three different surface treatments on a Ti6Al4V alloy have been in vitro tested for possible application in cementless joint prosthesis. All of them involve the novelty of using the Cold Spray technology for their deposition: (i) an as-sprayed highly rough titanium and, followed by the deposition of a thin hydroxyapatite layer with (ii) microcrystalline or (iii) nanocrystalline structure. Primary human osteoblasts were extracted from knee and seeded onto the three different surfaces. Cell viability was tested by MTS and LIVE/DEAD assays, cell differentiation by alkaline phosphatase (ALP) quantification and cell morphology by Phalloidin staining...
June 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
Gulsah Gundogdu, Koksal Gundogdu
Adropin is newly discovered peptide hormone. Osteoarthritis (OA) is a kind of joint disease characterized by progressive joint cartilage loss and joint pain. The present study was carried out to investigate adropin and tumor necrosis factor alpha (TNF-α) levels and the relationship between adropin in patients with knee OA classified by Kellgren-Lawrence (KL). A total of 60 knee OA patients and 30 healthy controls were included in this study. KL grading was carried out using the radiographic findings. Demographic characteristics and laboratory parameters were recorded...
March 16, 2018: Clinical Rheumatology
Naosuke Kamei, Mitsuo Ochi, Nobuo Adachi, Masakazu Ishikawa, Shinobu Yanada, L Scott Levin, Goki Kamei, Takaaki Kobayashi
PURPOSE: A new cell delivery system using magnetic force, termed magnetic targeting, was developed for the accumulation of locally injected cells in a lesion. The aim of this study was to assess the safety and efficacy of mesenchymal stem cell (MSC) magnetic targeting in patients with a focal articular cartilage defect in the knee. METHODS: MSC magnetic targeting for five patients was approved by the Ministry of Health Labour and Welfare of Japan. Autologous bone marrow MSCs were cultured and subsequently magnetized with ferucarbotran...
March 16, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Lukas Leitner, Silvia Türk, Martin Heidinger, Bernd Stöckl, Florian Posch, Werner Maurer-Ertl, Andreas Leithner, Patrick Sadoghi
Arthroplasty registers were originally established in Scandinavia to receive clinically relevant information from pooled data, to improve quality and reduce revision surgeries, with socioeconomic benefit. In Austria, where the highest rate of total knee arthroplasties (TKA) per inhabitant of all OECD countries was reached in 2014, arthroplasties are centrally reported since 2009. Study purpose was to perform the first analysis of the Austrian database, aiming to obtain data on trends in arthroplasty in Austria over time in relation to demographic development...
March 16, 2018: Scientific Reports
Du Hyun Ro, Hyuk-Soo Han, Seong Hwan Kim, Yoon-Ho Kwak, Jae-Young Park, Myung Chul Lee
BACKGROUND: The goals of this study were (1) to document the gait pattern of patients with unilateral knee osteoarthritis (OA), (2) to determine the knee adduction moment (KAM) changes in the non-operated knee, and (3) to identify the predictors of change in KAM in the non-operated knee. METHODS: The study recruited 23 patients with advanced unilateral knee OA. The preoperative Kellgren-Lawrence (KL) grade of the non-operated knee was one or two; non-operated knee pain, rated using a numeric rating scale (NRS), was less than three out of 10 points...
March 13, 2018: Knee
Daniel John Cleather
The patella is traditionally understood to be a "joint spacer" that increases the moment arm of the patellar tendon. This characterisation is unsatisfactory as it fails to explain the more interesting characteristics of the patella: 1) that the changing pivot point of the patella causes the ratio of quadriceps to patellar tendon force to almost double as the knee flexes; 2) that the patellar tendon exerts an anteriorly directed force on the tibia when the knee is extended but this switches to a posterior draw as the knee flexes; and 3) that the presence of the patella allows the quadriceps to exert different moments on the femur and tibia...
March 13, 2018: Journal of Theoretical Biology
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