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Journal of Orthopaedic Surgery and Research

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https://www.readbyqxmd.com/read/29141674/repair-of-articular-cartilage-and-subchondral-defects-in-rabbit-knee-joints-with-a-polyvinyl-alcohol-nano-hydroxyapatite-polyamide-66-biological-composite-material
#1
Tao Guo, Xiaobin Tian, Bo Li, Tianfu Yang, Yubao Li
BACKGROUND: This study sought to prepare a new PVA/n-HA/PA66 composite to investigate the repair of articular cartilage and subchondral defects in rabbit knee joints. METHODS: A 5 × 5 × 5 mm-sized defect was created in the patellofemoral joints of 72 healthy adult New Zealand rabbits. The rabbits were then randomly divided into three groups (n = 24): PVA/n-HA+PA66 group, polyvinyl alcohol (PVA) group, and control (untreated) group. Cylindrical PVA/n-HA+PA66, 5 × 5 mm, comprised an upper PVA layer and a lower n-HA+PA66 layer...
November 15, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29137681/influence-of-tourniquet-use-in-primary-total-knee-arthroplasty-with-drainage-a-prospective-randomised-controlled-trial
#2
Kai Zhou, Tingxian Ling, Haoyang Wang, Zongke Zhou, Bin Shen, Jing Yang, Pengde Kang, Fuxing Pei
BACKGROUND: We aimed to compare the effect of tourniquet use or lack of it on recovery following uncomplicated primary total knee arthroplasty (TKA). METHODS: In a prospective randomised double-blinded study, 150 patients undergoing primary TKA were assigned to either a tourniquet or non-tourniquet group. At the early phase, 3 and 6 months after surgery, an independent observer assessed the primary outcome measure (i.e. total blood loss) and secondary outcome measures (i...
November 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29137667/selective-medial-soft-tissue-release-combined-with-tibial-reduction-osteotomy-in-total-knee-arthroplasty
#3
Qian Tang, Hua-Chen Yu, Ping Shang, Shang-Kun Tang, Hua-Zi Xu, Hai-Xiao Liu, Yu Zhang
BACKGROUND: To obtain the correct coronal alignment and balancing in flexion and extension, we established a selective medial release technique and investigated the effectiveness and safety of the technique during primary total knee arthroplasty (TKA). METHODS: Four hundred sixty-six primary TKAs with varus deformity were prospectively evaluated between June 2013 and June 2015. A knee joint position similar to Patrick's sign was used to release the medial structure...
November 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29137665/treatment-for-lateral-patellar-impingement-syndrome-with-arthroscopic-lateral-patelloplasty-a-bidirectional-cohort-study
#4
Tianhao Wu, Shiyu Tang, Fei Wang
BACKGROUND: Anterior knee pain is one of the most common musculoskeletal complaints of young patients. We notice that some patients had normal femoral trochlear, medial and lateral patellar retinaculum, and special patellar morphology, which resulted in a series of symptoms in the flexion of the knee due to the impingement of the lateral articular surface of the patella with the femur. We firstly termed this pathologic process as lateral patellar impingement syndrome (LPIS). This ambispective cohort study was to explore the curative effect of arthroscopic lateral patelloplasty for early LPIS...
November 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29137658/comparison-of-three-different-fixation-constructs-for-radial-neck-fractures-a-biomechanical-study
#5
Hongwei Chen, Dengying Wu, Tianlong Pan, Jun Pan, Rui Zhang, Xuchao Shi
BACKGROUND: Fixation of radial neck fractures can be achieved with a plate and screw construct or with two screws. This study evaluated the biomechanical properties of three different fixation methods following radial neck fractures. METHODS: Twenty-four fourth-generation composite radii were sawed to simulate an unstable radial neck fracture. They were then instrumented with a plate and screw construct or two different orientations (crossed and parallel) of screw fixation...
November 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29132386/primary-single-suture-anchor-re-fixation-of-anterior-cruciate-ligament-proximal-avulsion-tears-leads-to-good-functional-mid-term-results-a-preliminary-study-in-12-patients
#6
Christof Hoffmann, Jan Friederichs, Christian von Rüden, Christian Schaller, Volker Bühren, Christoph Moessmer
BACKGROUND: Current studies demonstrate encouraging short-term results after primary anterior cruciate ligament (ACL) suture anchor repair. However, earlier studies reported deterioration of knee function at 5-year follow-up following good clinical short-term recovery. Therefore, the aim of this study was to evaluate clinical long-term results after primary ACL repair at a minimum 5-year follow-up. METHODS: In a retrospective study, 13 patients were included between 2009 and 2012...
November 13, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29126421/peroneal-artery-perforator-flap-for-the-treatment-of-chronic-lower-extremity-wounds
#7
Liang Cheng, Xiaqing Yang, Tingxiang Chen, Zhijie Li
BACKGROUND: Reconstruction of chronic lower extremity wounds remains challenging. These wounds are mainly associated with diabetes mellitus, infections, and osteomyelitis. Although several reconstructive techniques are available, the peroneal artery perforator flap has unique advantages. METHODS: In this study, we discuss our experiences with peroneal artery perforator flaps in 55 patients who had suffered from chronic lower limb wounds. The size of the defect, comorbidities, etiology, flap size, and complications were recorded and analyzed based on a retrospective chart review...
November 10, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29121993/transcriptomic-analyses-reveal-the-underlying-pro-malignant-functions-of-pthr1-for-osteosarcoma-via-activation-of-wnt-and-angiogenesis-pathways
#8
Shenglong Li, Yujin Dong, Ke Wang, Zhe Wang, Xiaojing Zhang
BACKGROUND: Increasing evidence has indicated parathyroid hormone type 1 receptor (PTHR1) plays important roles for the development and progression of osteosarcoma (OS). However, its function mechanisms remain unclear. The goal of this study was to further illuminate the roles of PTHR1 in OS using microarray data. METHODS: Microarray data were available from the Gene Expression Omnibus database under the accession number GSE46861, including six tumors from mice with PTHR1 knockdown (PTHR1...
November 9, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29121960/non-invasive-quantification-of-age-related-changes-in-the-vertebral-endplate-in-rats-using-in-vivo-dce-mri
#9
Hui Li, Jia-Zhi Yan, Yong-Jie Chen, Wei-Bo Kang, Jia-Xi Huang
BACKGROUND: Small animal models that can mimic degenerative disc disease (DDD) are commonly used to examine DDD progression. However, assessments such as histological studies and macroscopic measurements do not allow for longitudinal studies because they can only be completed after the animal is sacrificed. Dynamic contrast-enhanced MRI (DCE-MRI) may provide a reliable, non-invasive in vivo method for detecting the progression. METHODS: The present study investigated the progression of changes in lumbar discs and the effect of endplate conditions on diffusion into the lumbar discs of aging sand rats after intravenous administration of gadolinium-containing contrast medium through the tail vein...
November 9, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29115973/anteromedial-versus-transtibial-technique-in-single-bundle-autologous-hamstring-acl-reconstruction-a-meta-analysis-of-prospective-randomized-controlled-trials
#10
REVIEW
Haitao Chen, Kai Tie, Yongjian Qi, Bin Li, Biao Chen, Liaobin Chen
BACKGROUND: The aim of this study was to compare the clinical outcome and postoperative complication between single-bundle anterior cruciate ligament (ACL) reconstruction with an anteromedial (AM) technique and a transtibial (TT) technique. METHODS: The study includes clinical randomized controlled trials comparing the clinical outcomes of ACL reconstruction using the autologous hamstring tendon with an AM method and a TT method published up to September 2017 were retrieved from PubMed, Cochrane Library, and Embase databases...
November 7, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29110725/tendon-split-lengthening-technique-for-flexor-hallucis-longus-tendon-rupture
#11
Jae Yong Park, Chenyu Wang, Hee Dong Kim, Hyong Nyun Kim
BACKGROUND: Flexor hallucis longus (FHL) tendon rupture is a challenging injury to lead with clawing of the great toe when the FHL tendon is repaired too tight. When the diagnosis is delayed, the tendon ends may not be opposable because of contracture or poor tendon tissue. METHODS: A technique to reconstruct FHL tendon rupture without a free tendon graft is described. A split tendon lengthening is performed at the midfoot around the knot of Henry. Ankle block anesthesia is used to allow the patient's active movement of the interphalangeal (IP) joint to determine the appropriate length of the reconstructed tendon for maintaining balance and preventing the tendon from being too tight or too loose...
November 6, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29110711/radial-extracorporeal-shock-wave-therapy-is-efficient-and-safe-in-the-treatment-of-fracture-nonunions-of-superficial-bones-a-retrospective-case-series
#12
Paulo Kertzman, Nikolaus B M Császár, John P Furia, Christoph Schmitz
BACKGROUND: A substantial body of evidence supports the use of focused extracorporeal shock wave therapy (fESWT) in the non-invasive treatment of fracture nonunions. On the other hand, virtually no studies exist on the use of radial extracorporeal shock wave therapy (rESWT) for this indication. METHODS: We retrospectively analyzed 22 patients treated with rESWT for fracture nonunions of superficial bones that failed to heal despite initial surgical fixation in most cases...
November 6, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29110696/a-randomized-controlled-trial-on-the-effects-of-collagen-sponge-and-topical-tranexamic-acid-in-posterior-spinal-fusion-surgeries
#13
Derong Xu, Qianyu Zhuang, Zheng Li, Zhinan Ren, Xin Chen, Shugang Li
BACKGROUND: This is a randomized controlled trial research to assess the hemostatic efficacy of gelatin sponge, collagen sponge, and topical use of tranexamic acid (TXA) on postoperative blood loss in posterior spinal fusion surgeries. METHODS: We recruited patients with spinal degenerative diseases into the study from November 2013 to October 2016. All the participants were assigned to 3 groups using a simple, equal-probability randomization scheme: group A is a control group utilizing gelatin sponge, while groups B and C are experimental groups, applying collagen hemostatic sponge and topical TXA respectively...
November 6, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29084569/improved-arthroscopic-one-piece-excision-technique-for-the-treatment-of-symptomatic-discoid-medial-meniscus
#14
Hong-De Wang, Tong Li, Shi-Jun Gao
BACKGROUND: Discoid medial meniscus is an extremely rare abnormality of the knee. During arthroscopic meniscectomy for symptomatic discoid medial meniscus, it is difficult to remove the posterior portion of the meniscus because of the confined working space within the compartment and the obstruction caused by the anterior cruciate ligament and the tibial intercondylar eminence. To overcome these problems, we describe an improved arthroscopic technique for one-piece excision of symptomatic discoid medial meniscus through three unique portals...
October 30, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29084558/percutaneous-endoscopic-interlaminar-discectomy-of-l5-s1-disc-herniation-a-comparison-between-intermittent-endoscopy-technique-and-full-endoscopy-technique
#15
Hongyu Song, Wenhao Hu, Zhongguo Liu, Yongyu Hao, Xuesong Zhang
BACKGROUND: Percutaneous endoscopic laminar discectomy is a typical minimally invasive discectomy operation that is classified into the percutaneous endoscopic transforaminal discectomy and the percutaneous endoscopic interlaminar discectomy. Based on whether the surgeon chooses to deal with the ligamentum flavum under endoscope guidance, percutaneous endoscopic discectomy by the interlaminar approach can be performed with a full endoscope technique with the intermittent endoscope technique...
October 30, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29084548/fixation-in-slipped-capital-femoral-epiphysis-avoiding-femoral-acetabular-impingement
#16
Francesco Falciglia, Angelo G Aulisa, Marco Giordano, Vincenzo Guzzanti
BACKGROUND: The appropriate treatment in mild slipped capital femoral epiphysis (SCFE) should not only prevent further slipping of the epiphysis but also address potential femoroacetabular impingement by restoring the anatomy of the proximal femur. The aim of this study was to quantify length of the remodeling phase mediated by growth of the femoral neck, after treatment of SCFE with a screw designed to prevent premature closure of the physis and provide stability. METHODS: Between 2001 and 2011, 38 patients with unilateral mild SCFE were treated by fixation in situ using a modified screw which does not cause premature physeal arrest...
October 30, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29078816/open-versus-minimally-invasive-fixation-of-a-simulated-syndesmotic-injury-in-a-cadaver-model
#17
Adam C Shaner, Norachart Sirisreetreerux, Babar Shafiq, Lynne C Jones, Erik A Hasenboehler
BACKGROUND: Malreduction of unstable syndesmotic ankle fractures is common. This study compared the reduction quality of an anterolateral open technique (OT) versus a conventional minimally invasive technique (MIT). METHODS: Fourteen fresh-frozen lower torso specimens with 28 matched lower extremities underwent computed tomography (CT) to measure syndesmosis position before dissection. Reduction was performed using direct visualization and fluoroscopy for the OT group (right-sided specimens) and fluoroscopy only for the MIT group (left-sided specimens)...
October 27, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29078788/the-efficacy-of-tranexamic-acid-using-oral-administration-in-total-knee-arthroplasty-a-systematic-review-and-meta-analysis
#18
Lu-Kai Zhang, Jian-Xiong Ma, Ming-Jie Kuang, Jie Zhao, Bin Lu, Ying Wang, Xin-Long Ma, Zheng-Rui Fan
BACKGROUND: Total knee arthroplasty (TKA) is gradually regarded as an effective choice for end-stage osteoarthritis or rheumatic arthritis. In the past, the management of tranexamic acid (TXA) using intravenous injection or topical application has been extensively researched. However, several studies have reported that oral TXA has an effect on blood loss. Therefore, a meta-analysis should be performed to determine whether oral TXA helps to prevent blood loss. METHODS: Randomized controlled trials or retrospective cohort studies about relevant studies were searched in PubMed (1996-April 2017), Embase (1980-April 2017), and the Cochrane Library (CENTRAL, April 2017)...
October 27, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29070055/a-comparison-of-clinical-efficacy-between-different-surgical-approaches-for-popliteal-cyst
#19
Bo Yang, Fengchun Wang, Yanhua Lou, Juan Li, Lei Sun, Lei Gao, Feng Liu
BACKGROUND: A popliteal cyst is a benign swelling with synovial fluid located behind the knee joint. Popliteal cysts are often asymptomatic; however, symptomatic cysts may cause pain and may need surgery interventions. Here, we performed a perspective study to compare the clinical efficacy of different surgical approaches, including traditional open excision and advanced arthroscopic treatment. METHODS: A total of 76 patients with popliteal cysts were assigned into three groups by a randomized complete block design...
October 25, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29065899/upper-extremity-open-fractures-in-hospitalized-road-traffic-accident-patients-adult-versus-pediatric-cases
#20
Guy Rubin, Kobi Peleg, Adi Givon, Nimrod Rozen
BACKGROUND: Fractures in pediatrics show epidemiological characteristics which are different from fractures in adults. The objective of this study was to examine the injury profiles of open upper extremity fractures (UEFs) in all modes of injury related to road traffic accidents (RTAs) in adult and pediatric hospitalized patients. METHODS: Data on 103,465 RTA patients between 1997 and 2013 whose records were entered in a centralized country trauma database were reviewed...
October 24, 2017: Journal of Orthopaedic Surgery and Research
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