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https://www.readbyqxmd.com/read/29457424/-progress-on-diagnosis-and-treatment-of-proximal-tibiofibular-joint-dislocation
#1
REVIEW
Bin Yuan, Bao-Jian Ge, Bai-Yi Meng
Dislocation of proximal tibiofibular joint(PTFJ) is relatively infrequent in clinic, it can be either isolated or associated with tibia fracture, fibular fracture and ankle injury and so on. Chronic symptomatic PTFJ instability are easily mixed with meniscal tears. It was easily neglected because of the mild clinical presentation and atypical change on radiography. Early diagnosis and treatment are crucial to prevent chronic knee pain and instability. The paper concluded the anatomy, classification, complication, diagnosis, treatment, clinical effect and insufficient of the dislocation of PTFJ, to direct the diagnosis and treatment of proximal tibiofibular joint dislocation in clinical work...
October 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29457397/-reconstruction-of-medial-patellofemoral-ligament-with-tightrope-button-fixation-on-the-femoral-side-for-the-treatment-of-traumatic-patellar-dislocation
#2
Yong-Xiang Zuo, Zi-Ping Ma
OBJECTIVE: To explore the operating procedures and therapeutic effects of medial patellofemoral ligament reconstruction with Tightrope(Arthrex, FL, USA) button fixation at lateral femoral cortex. METHODS: From May 2014 to July 2016, 9 patients with traumatic patellar dislocation were treated. There were 5 males and 4 females, ranging in age from 16 to 47 years old, with an average of 23.7 years old. All the patients underment arthroscopic lateral retinaculum release and joint debridement first...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29457387/-multi-point-fixation-with-absorbable-cartilage-screws-for-the-treatment-of-osteochondral-fracture-caused-by-patellar-instability
#3
Xu-Hui Zhang, Lei Xia, Gang-Tao Wang, Tan Li
OBJECTIVE: To study clinical effects of multi-point fixation with bioabsorbable cartilage screws for the treatment of osteochondral fracture caused by patellar instability. METHODS: During the period from August 2014 to Steptember 2016, there were 21 patients with osteochondral fracture caused by patellar dislocation, including 7 males and 14 females, ranging in age from 12 to 42 years old, with an average of 27 years old. During the operation, free fractures fragments of cartilage were found with a open surgery, and the patients were treated with fixation by absorbable cartilage screws combined with lateral retinaculum release and medial retinaculum shrinkage...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29457386/-treatment-of-habitual-dislocation-of-patella-with-reconstruction-of-medial-patellofemoral-ligament-combined-with-release-of-lateral-retinaculum-and-medial-transfer-and-advancement-of-tibial-tuberosity-under-arthroscopy
#4
Li-Chuang Wu, Hai-Bo Zhou, Chao Zhang, Lei Chen, Cai-Long Liu
OBJECTIVE: To study clinical effects of triad operation including reconstruction of medial patellofemoral ligament, release of lateral retinaculum, Fulkerson tibial tubercle osteotomy, medial transfer and advancement under arthroscopy for the treatment of habitual dislocation of patella. METHODS: From March 2010 to May 2016, 35 patients with habitual patellar dislocation were treated with the triad operation, including 14 males, 21 females, ranging in age from 18 to 38 years old, with an average of 25...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29448880/migration-and-clinical-outcome-of-mobile-bearing-versus-fixed-bearing-single-radius-total-knee-arthroplasty
#5
Koen T Van Hamersveld, Perla J Marang-Van De Mheen, Huub J L Van Der Heide, Henrica M J Van Der Linden-Van Der Zwaag, Edward R Valstar, Rob G H H Nelissen
Background and purpose - Mobile-bearing total knee prostheses (TKPs) were developed in the 1970s in an attempt to increase function and improve implant longevity. However, modern fixed-bearing designs like the single-radius TKP may provide similar advantages. We compared tibial component migration measured with radiostereometric analysis (RSA) and clinical outcome of otherwise similarly designed cemented fixed-bearing and mobile-bearing single-radius TKPs. Patients and methods - RSA measurements and clinical scores were assessed in 46 randomized patients at baseline, 6 months, 1 year, and annually thereafter up to 6 years postoperatively...
February 16, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29444543/posterolateral-corner-reconstruction-using-the-anatomical-two-tailed-graft-technique-clinical-outcomes-in-the-multiligament-injured-knee
#6
Jarret M Woodmass, Thomas L Sanders, Nick R Johnson, Isabella T Wu, Aaron J Krych, Michael J Stuart, Bruce A Levy
Injury to the posterolateral corner (PLC) of the knee can lead to both varus and rotational instability. Multiple PLC reconstruction techniques have been described, including one-tailed graft (fibula-based constructs) or two-tailed graft (combined fibula- and tibia-based constructs). The purpose of our study was to evaluate the clinical outcomes of anatomical two-tailed graft reconstruction of the PLC in the setting of multiligament knee injuries (MKLIs) with grade III varus instability. Patients were identified through a prospective MLKI database between 2004 and 2013...
February 14, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29435992/feasibility-and-safety-of-a-cemented-peek-on-pe-knee-replacement-in-a-goat-model-a-preliminary-study
#7
Zhe Du, Zhonglin Zhu, Bing Yue, Zhanchun Li, You Wang
Polyether-ether-ketone (PEEK) is a potential alternative to metal alloys for use in the orthopedic implants; however, an in vivo study in an appropriate animal model is essential and has not yet been initiated. The aim of the present study was to gather some preliminary evidence regarding the performance and safety of a cemented PEEK-based knee replacement device in a goat model. Fifteen adult goats were randomly divided into two groups; the control group (n = 5), which received a sham operation, and the experimental group (n = 10), which received a total knee arthroplasty with a PEEK-based knee replacement device...
February 13, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29434267/early-changes-of-articular-cartilage-and-subchondral-bone-in-the-dmm-mouse-model-of-osteoarthritis
#8
Hang Fang, Lisi Huang, Ian Welch, Chris Norley, David W Holdsworth, Frank Beier, Daozhang Cai
To examine the early changes of articular cartilage and subchondral bone in the DMM mouse model of osteoarthritis, mice were subjected to DMM or SHAM surgery and sacrificed at 2-, 5- and 10-week post-surgery. Catwalk gait analyses, Micro-Computed Tomography, Toluidine Blue, Picrosirius Red and Tartrate-Resistant Acid Phosphatase (TRAP) staining were used to investigate gait patterns, joint morphology, subchondral bone, cartilage, collagen organization and osteoclasts activity, respectively. Results showed OA progressed over 10-week time-course...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29433154/quality-of-life-and-functional-outcomes-after-multiligament-knee-reconstruction
#9
George F Rick Hatch, Diego Villacis, Dhanur Damodar, Michael Dacey, Anthony Yi
We aimed to determine factors that affect the quality of life of patients undergoing a standardized surgical and postoperative management protocol for knee dislocations. A total of 31 patients (33 knees) were included in this study. We contacted patients at a minimum of 12 months postoperatively (mean: 38 months; range, 12-111 months) and administered the previously validated Multiligament Quality of Life questionnaire (ML-QOL), 2000 International Knee Documentation Committee Subjective Knee Form (IKDC), and Lysholm Knee Scoring Scale...
February 12, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29427218/short-to-mid-term-outcomes-of-anatomic-mcl-reconstruction-with-achilles-tendon-allograft-after-multiligament-knee-injury
#10
Ian J Barrett, Aaron J Krych, Ayoosh Pareek, Nicholas R Johnson, Diane L Dahm, Michael J Stuart, Bruce A Levy
PURPOSE: Multiple techniques have been described in the literature for reconstruction of the medial collateral ligament. The purpose of this study is to describe functional outcome, range of motion, and knee stability following anatomic MCL reconstruction utilizing an Achilles tendon bone allograft after multiligament knee injury. METHODS: A comprehensive search of a single-hospital multiligament knee injury (MLKI) procedural database was conducted to identify all patients that underwent reconstruction of the MCL utilizing an Achilles tendon bone allograft and with 2-year clinical follow-up...
February 9, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29419685/the-adaptive-change-of-patellofemoral-joint-after-arthroscopic-discoid-lateral-meniscus-plasty-an-observational-study
#11
Jiangtao Dong, Hongtao Xu, Guorong Jin, Dongmei Xin, Jian Zhang, Kai Kang, Shijun Gao, Baicheng Chen, Yong Shen
The purpose of this study was to investigate the patellofemoral joint adaptive changes after discoid lateral meniscus (DLM) plasty.Forty-one patients with unilateral complete type DLM tears were included in this study. Demographic variables, including gender, age, body mass index (BMI), injury to operation interval, type of injury, and follow-up time, were recorded. The evolution of physical examination, imaging index, and functional score were analyzed by Chi-squared test, Wilcoxon signed ranks test, and Friedman test...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29406457/bearing-dislocation-and-progression-of-osteoarthritis-after-mobile-bearing-unicompartmental-knee-arthroplasty-vary-between-asian-and-western-patients-a-meta-analysis
#12
Kyung-Han Ro, Jae-Won Heo, Dae-Hee Lee
BACKGROUND: Implant survivorship is reported to be lower and complications, particularly bearing dislocation, are reported to be more frequent in Asian than in Western patients with medial knee osteoarthritis (OA) undergoing Oxford Phase III unicompartmental knee arthroplasty (UKA). To date, however, these complications have not been compared between these groups of patients. QUESTIONS/PURPOSES: The purpose of this study was to perform a meta-analysis comparing the standardized incidence rates of (1) all-cause reoperation; (2) reoperation related to bearing dislocation; and (3) reoperation related to progression of lateral compartment arthritis in Asian and Western patients with medial knee OA who underwent Oxford Phase III UKA...
February 2, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29398260/infection-following-total-joint-arthroplasty-is-the-main-cause-of-litigation-data-from-one-metropolitan-area
#13
Michael M Kheir, Alexander J Rondon, Alexandra Woolsey, Heather Hansen, Timothy L Tan, Javad Parvizi
BACKGROUND: A prior survey of members of the American Association of Hip and Knee Surgeons revealed that 78% of responding surgeons were named as a defendant in at least 1 lawsuit, and 69% of these lawsuits were dismissed or settled out of court. The most common sources of litigation were nerve injury, limb-length discrepancy, and infection. This study examined common reasons for lawsuits after total joint arthroplasty (TJA) in a single metropolitan area. METHODS: A retrospective review of lawsuits filed between 2009 and 2015 in a 5-county metropolitan area was performed, including 30 hospitals and 113 TJA surgeons...
December 14, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29396963/cartilage-restoration-microfracture-and-osteochondral-autograft-transplantation
#14
Michael L Redondo, Adam J Beer, Adam B Yanke
The treatment of patellofemoral cartilage defects presents several distinct challenges when compared with cartilage restoration techniques used for other compartments of the knee due to the unique anatomy and distribution of forces. The etiologies of patellofemoral articular cartilage lesions include acute traumatic instability injuries, such as dislocation and subluxation, osteochondritis dissecans, and chronic degenerative changes. Regardless of the etiology, untreated patellofemoral cartilage lesions can contribute to activity-limiting anterior knee pain...
February 2, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29396055/the-twin-peg-oxford-knee-medium-term-survivorship-and-surgical-principles
#15
Stephen H White, Sharon Roberts, Jan Herman Kuiper
BACKGROUND: A multicentre study of single peg Oxford knees reported failure associated with osteoarthritis progression, femoral component loosening, unexplained pain and meniscal bearing dislocation. Suboptimally positioned femoral components and intraoperative MCL damage could explain these problems. We hypothesised that modifying implantation technique to optimise femoral component positioning and MCL preservation, and introducing the twin peg Oxford knee would address these problems and improve longer term survival...
January 30, 2018: Knee
https://www.readbyqxmd.com/read/29387442/effects-of-an-8-week-strength-training-intervention-on-tibiofemoral-joint-loading-during-landing-a-cohort-study
#16
Maike B Czasche, Jon E Goodwin, Anthony M J Bull, Daniel J Cleather
Objectives: To use a musculoskeletal model of the lower limb to evaluate the effect of a strength training intervention on the muscle and joint contact forces experienced by untrained women during landing. Methods: Sixteen untrained women between 18 and 28 years participated in this cohort study, split equally between intervention and control groups. The intervention group trained for 8 weeks targeting improvements in posterior leg strength. The mechanics of bilateral and unilateral drop landings from a 30 cm platform were recorded preintervention and postintervention, as was the isometric strength of the lower limb during a hip extension test...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29381884/osteochondral-injuries-of-the-knee-in-pediatric-patients
#17
Kathryn L Bauer
Osteochondral injuries in pediatric patients may occur as a result of a traumatic injury or secondary to an osteochondritis dissecans (OCD) lesion. Lateral patella dislocation is a common traumatic cause of osteochondral injury that typically occurs at the medial facet of the patella or at the lateral aspect of the distal femur. Multiple theories have been proposed for the cause of an OCD lesion in the knee, including trauma or repetitive microtrauma, local vascular insufficiency, and family history. The most "classic" location for OCD lesions of the knee is the lateral aspect of the medial femoral condyle of the distal femur...
January 30, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29368238/use-of-modular-megaprosthesis-in-managing-chronic-end-stage-periprosthetic-hip-and-knee-infections-is-there-an-increase-in-relapse-rate
#18
Pablo S Corona, Matias Vicente, Mireia Lalanza, Carles Amat, Luis Carrera
BACKGROUND: Bone loss is a common problem in periprosthetic joint infection (PJI) scenarios. Modular megaprosthesis (MP) could offer a limb salvage solution in such situations. Concerns about risk of infection relapse, reinfection and implant longevity exist regarding MP use in cases of chronic PJI, rather than standard implants. We therefore sought to analyze our results with MP use in chronic PJI cases. METHODS: We performed a retrospective analysis of 29 MP patients...
January 24, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29366728/bariatric-surgery-improves-outcomes-after-lower-extremity-arthroplasty-in-the-morbidly-obese-a-propensity-score-matched-analysis-of-a-new-york-statewide-database
#19
Alexander S McLawhorn, Ashley E Levack, Yuo-Yu Lee, Yile Ge, Huong Do, Emily R Dodwell
BACKGROUND: The purpose of this study was to compare risks for revision and short-term complications after total joint arthroplasty (TJA) in matched cohorts of morbidly obese patients, receiving and not receiving prior bariatric surgery. METHODS: Patients undergoing elective TJA between 1997 and 2011 were identified in a New York Statewide database, analyzing total knee arthroplasty (TKA) and total hip arthroplasty (THA) separately. Propensity scores were used to match morbidly obese patients receiving and not receiving bariatric surgery prior to TJA...
December 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29354438/osteotomy-of-the-tibial-tubercle-for-anteromedialization
#20
Márcio B Ferrari, George Sanchez, Nicholas I Kennedy, Anthony Sanchez, Katrina Schantz, Matthew T Provencher
Patellofemoral instability is a common cause of anterior knee pain, especially in younger and more active patients. Treatment of instability varies considerably depending on the patient's symptoms as well as the cause of the instability. Lateral instability has a particularly broad spectrum of treatment algorithms including patellar taping, arthroscopy, lateral release, medial patellofemoral ligament (MPFL) reconstruction, MPFL repair, and osteotomy of the tibial tubercle for realignment. Acute traumatic lateral dislocation is commonly associated with a tear of the MPFL and, therefore, needs to be addressed...
August 2017: Arthroscopy Techniques
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