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https://www.readbyqxmd.com/read/28819590/minimally-invasive-total-hip-replacement-in-an-ipsilateral-post-traumatic-above-knee-amputation-a-case-report
#1
Sanjeev Patnaik, Biswaranjan Nayak, Akshaya Kumar Sahoo, Nabin Kumar Sahu
INTRODUCTION: Total hip replacement (THR) is a highly successful operation in alleviating pain and improving the overall function of the hip, in end-stage arthritis of the hip, in otherwise fit patients. However, THR as a surgical option in post-traumatic hip arthritis with ipsilateral above-knee amputation is rarely reported. CASE REPORT: We are presenting a case report of a 30-year-old male, who had previously underwent an above-knee amputation due to road-traffic accident, presenting 24 h after the injury with segmental fracture femur and popliteal artery laceration, for which the limb could not be salvaged...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28801826/brain-activity-changes-in-somatosensory-and-emotion-related-areas-with-medial-patellofemoral-ligament-deficiency
#2
Masaru Kadowaki, Taku Tadenuma, Nobuyuki Kumahashi, Yuji Uchio
BACKGROUND: Patellar instability with medial patellofemoral ligament (MPFL) deficiency is a common sports injury among young people. Although nonoperative and surgical treatment can provide stability of the patella, patients often have anxiety related to the knee. We speculate that neural dysfunction may be related to anxiety in these patients; however, the mechanism in the brain that generates this anxiety remains unknown. QUESTIONS/PURPOSES: (1) How does brain activity in patients with MPFL deficiency change in the areas related to somatic sensation against lateral shift of the patella? (2) How does patella instability, which can lead to continuous fear or apprehension for dislocation, influence brain activity in the areas related to emotion? METHODS: Nineteen patients with MPFL deficiency underwent surgical reconstruction in our hospital from April 2012 to March 2014...
August 11, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28760130/neglected-bilateral-congenital-dislocation-of-the-patella
#3
Mehmet Ali Tokgöz, Ali Turgay Çavuşoğlu, Tacettin Ayanoğlu, Tarık Elma, Abdurrahman Vural
Congenital dislocation of the patella is a disorder that presents with dysfunction in extensor mechanism. Although congenital dislocation of the patella mostly occurs in children with genetic disorders, it may also occur in totally healthy children, despite rarely. In this article, we report a 16-year-old male patient who referred to our clinic with complaints of gait disturbance, frequent falls, and muscular weakness in lower extremity. The patient had no complaints during walking, but had difficulty in running and walking up and down the stairs...
August 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/28754264/surgical-management-of-posterior-knee-dislocation-associated-with-extensor-apparatus-rupture
#4
Chang-Cheng Liu, Xing Gao, Ming Xu, Zhi-Gang Kong
OBJECTIVE: The purpose of this study was to report the clinical and functional results of patients who underwent surgical management for posterior knee dislocation associated with extensor apparatus rupture. INTRODUCTION: Posterior knee dislocations associated with extensor apparatus ruptures are defined as rare but complicated injuries, which are difficult to return to the level of activity prior to the injury. The study demonstrated a hypothesis that good knee stability and early gain of range of motion could be achieved with deliberate design of the treatment protocol and proper application of the instruments...
July 25, 2017: Knee
https://www.readbyqxmd.com/read/28743096/osteoarthritis-with-permanent-dislocation-of-the-patella-treated-by-total-knee-arthroplasty-through-a-lateral-approach-a-report-of-two-cases
#5
Shuichi Fujiwara, Takafumi Hiranaka, Yuichi Hida, Shigeru Matsuda, Harunobu Uemoto
INTRODUCTION: Permanent dislocation of the patella (PDP) is a rare condition. In cases of PDP with tibiofemoral arthritis, total knee arthroplasty may be performed through a medial parapatellar approach with patellar realignment. In this article we present two cases of PDP with tibiofemoral osteoarthritis successfully treated via lateral approach TKA without any additional realignment procedure. We performed two total knee arthroplasties for PDP with lateral tibiofemoral arthritis through a lateral approach without any realignment procedure...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28741155/length-change-patterns-and-shape-of-a-grafted-tendon-after-anatomical-medial-patellofemoral-ligament-reconstruction-differs-from-that-in-a-healthy-knee
#6
Shuji Nakagawa, Yuji Arai, Hiroaki Inoue, Manabu Hino, Yuta Fujii, Shintaro Komaki, Kazuya Ikoma, Keiichiro Ueshima, Hiroyoshi Fujiwara, Toshikazu Kubo
PURPOSE: Recurrent patellar dislocation is currently treated with anatomical reconstruction of the medial patellofemoral ligament (MPFL), and favourable postoperative outcomes have been reported. However, it is uncertain if healthy MPFL function is restored by anatomical reconstruction. The hypothesis in this study was that stabilization of the patella following MPFL reconstruction would be improved compared with that before surgery, but that function of the grafted tendon would differ from that of a healthy MPFL...
July 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28728303/-enhancing-soft-tissue-reattachment-with-artificial-mesh-in-joint-endoprosthetic-reconstruction-for-bone-tumors
#7
J S Lin, R Chen, W Yan, D D Chen
Objective: To investigate the operative method and clinical application of the BARD(®) Mesh in enhancing joint stability and function of endoprosthetic reconstruction for bone tumors. Methods: From Jan 2013 to Jun 2015, the clinical data of 51 patients aged (44.75±23.18) years underwent wide resection of tumor and endoprosthetic reconstruction using the BARD(®) Mesh were collected. Among them, 27 were male and 24 were female. The surgical treatments received by these patients included 5 shoulder arthroplasties, 12 elbow replacements, 12 hip replacements and 32 knee replacements (including 24 femoral tumors and 8 tibial tumors)...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28720096/clinical-and-radiographic-predictors-of-acute-compartment-syndrome-in-the-treatment-of-tibial-plateau-fractures-a-retrospective-cohort-study
#8
Axel Gamulin, Anne Lübbeke, Patrick Belinga, Pierre Hoffmeyer, Thomas V Perneger, Matthieu Zingg, Gregory Cunningham
BACKGROUND: The aim of the study was to evaluate the relation between demographic, injury-related, clinical and radiological factors of patients with tibial plateau fractures and the development of acute compartment syndrome. METHODS: All consecutive adult patients with intra-articular tibial plateau fractures admitted in our urban academic medical centre between January 2005 and December 2009 were included in this retrospective cohort study. The main outcome measurement was the development of acute compartment syndrome...
July 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28711951/optimizing-patellar-positioning-during-total-knee-arthroplasty-an-anatomical-and-clinical-study
#9
Chahine Assi, Nadim Kheir, Camille Samaha, Mary Deeb, Kaissar Yammine
INTRODUCTION: Optimal positioning of the patellar component is crucial for the success of a total knee arthroplasty (TKA). Usually, the patellar component is placed empirically over the presumed centre of the patellar cut. Medialization of the prosthetic patella has been recommended; however, no evidence-based guidelines have been reported. MATERIAL AND METHOD: This anatomical study aims to quantify a pre-defined optimal location for positioning of the patellar component with regard to the centre of the patellar cut...
July 15, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28706814/tibial-allograft-transfer-for-medial-tibial-plateau-resurfacing
#10
Jonathan A Godin, Salvatore Frangiamore, Jorge Chahla, Mark E Cinque, Nicholas N DePhillipo, Robert F LaPrade
A large cartilage lesion of the tibial plateau with a deficient meniscus in a young patient is a challenging pathology for the orthopaedic surgeon due to the limited options available. While hemiarthroplasty procedures can be an option, the risk of revision in a young patient is high, and therefore a reconstructive procedure is advocated. The purpose of this Technical Note is to describe our technique for tibial plateau resurfacing, including the preparation and implantation of a medial tibial plateau and medial meniscal allograft, in a patient with a post-traumatic KD-4 knee dislocation with a medial tibial plateau rim fracture, medial meniscus deficiency, and medial tibiofemoral joint subluxation...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28702749/evaluation-of-different-surgical-methods-in-treating-recurrent-patella-dislocation-after-three-dimensional-reconstruction
#11
Hao Du, Xiao-Xiao Tian, Fa-Qi Guo, Xiang-Ming Li, Tao-Tao Ji, Bin Li, Tong-Sen Li
PURPOSE: Recurrent patella dislocation (RPD) is the most common complication of patellar instability. The effects of different surgical techniques on the outcome of RPD treatments remain unclear. This study was conducted to compare the effects of three surgical techniques in treating RPD by three-dimensional (3D) reconstruction from computed tomography (CT) scans. METHODS: Sixty-eight patients with RPD and no previous surgical treatments who attended our hospital between October 2010 and 2013 were enrolled and randomly assigned into three groups: (1) medial patellofemoral ligament (MPFL) reconstruction and medial patellar retinaculum (MPR) plication group; (2) lateral patellar retinaculum (LPR) release and MPR plication group; and (3) MPFL reconstruction and LPR release group...
July 12, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28702392/subchondroplasty-for-treating-bone-marrow-lesions-in-the-knee-initial-experience
#12
Marcelo Batista Bonadio, Pedro Nogueira Giglio, Camilo Partezani Helito, José Ricardo Pécora, Gilberto Luis Camanho, Marco Kawamura Demange
OBJECTIVE: To evaluate the use of subchondroplasty in the treatment of bone marrow lesions in an initial series of five cases. METHODS: The study included patients aged between 40 and 75 years old, with pain in the knee for at least six months, associated with high-signal MRI lesion on T2 sequences, on the tibia or femur. Patients were assessed using the visual analog pain scale and the KOOS score, one week before surgery and one, three, six, 12, and 24 weeks after the procedure...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28696495/robotic-arm-assisted-total-knee-arthroplasty-demonstrated-soft-tissue-protection
#13
Anton Khlopas, Morad Chughtai, Emily L Hampp, Laura Y Scholl, Michael Prieto, Ta-Cheng Chang, Abdullah Abbasi, Manoshi Bhowmik-Stoker, Jason Otto, David J Jacofsky, Michael A Mont
INTRODUCTION: While total knee arthroplasty (TKA) procedures have demonstrated clinical success, occasionally intraoperative complications can occur. Collateral or posterior cruciate ligament injury, instability, extensor mechanism disruption, and tibiofemoral or patellofemoral dislocation are among a few of the intraoperatively driven adverse events prevalently ranked by The Knee Society. Robotic-arm assisted TKA (RATKA) provides a surgeon the ability to three-dimensionally plan a TKA and use intraoperative visual, auditory, and tactile feedback to ensure that only the desired bone cuts are made...
July 11, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28690039/retained-antibiotic-spacers-after-total-hip-and-knee-arthroplasty-resections-high-complication-rates
#14
Stephen M Petis, Kevin I Perry, Mark W Pagnano, Daniel J Berry, Arlen D Hanssen, Matthew P Abdel
BACKGROUND: Prolonged retention of an antibiotic spacer is occasionally chosen during treatment of periprosthetic joint infections after total hip arthroplasty (THA) and total knee arthroplasty (TKA). The purpose of our study was to evaluate the outcome of extended spacer retention. METHODS: We reviewed 1106 cases of periprosthetic joint infection after THA (n = 308) and TKA (n = 798) and identified 17 (5.5%) retained hip and 34 (4.3%) retained knee spacers. Most patients (35 of 51, 69%) underwent spacer retention because they were medically unfit for further surgery...
June 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28685303/satisfactory-knee-function-after-single-stage-posterolateral-corner-reconstruction-in-the-multi-ligament-injured-dislocated-knee-using-the-anatomic-single-graft-technique
#15
Thomas L Sanders, Nick R Johnson, Ayoosh Pareek, Aaron J Krych, Robert G Marx, Michael J Stuart, Bruce A Levy
PURPOSE: Increasing importance has been placed on the posterolateral corner (PLC) in maintaining varus and rotational stability of the knee. The goal of this study was to evaluate knee function and clinical stability following a single-graft PLC reconstruction technique and identify factors associated with poor knee function. METHODS: This study identified patients with a multi-ligament knee injury between 2006 and 2013. Patients who received a single-graft fibular collateral ligament and PLC reconstruction with a single-stage surgery during the study period and had a minimum follow-up of 2 years after surgery were included...
July 6, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28684171/biomechanical-tensile-strength-analysis-for-medial-patellofemoral-ligament-reconstruction
#16
Patrick W Joyner, Jeremy Bruce, Travis S Roth, Frederic Baker Mills, Scott Winnier, Ryan Hess, Luke Wilcox, Aaron Mates, Tim Frerichs, James R Andrews, Charles A Roth
BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction is a surgery for acute and chronic dislocating patella. Several surgical techniques have been described. No biomechanical study has compared suture anchors, interference screws, and suspensory cortical fixation for MPFL reconstruction using human gracilis allograft. METHODS: Twelve human cadaver knees were used for the analysis of five MPFL reconstruction techniques on the femur (F) and patella (P): suspensory cortical (SC), interference screw (IS) and suture anchor (SA) fixation (SC-F/SC-P, SC-F/IS-P, SC-F/SA-P, IS-F/SC-P, IS-F/IS-P)...
July 3, 2017: Knee
https://www.readbyqxmd.com/read/28646869/long-term-outcomes-after-combined-arthroscopic-medial-reefing-and-lateral-release-in-patients-with-recurrent-patellar-instability-a-retrospective-analysis
#17
Dominik Schorn, Sera Yang-Strathoff, Georg Gosheger, Tim Vogler, Sebastian Klingebiel, Carolin Rickert, Dimosthenis Andreou, Dennis Liem
BACKGROUND: There is currently no consensus regarding the optimal surgical treatment method for patients with recurrent patella instability. Our goal was to evaluate the long-term results of combined arthroscopic medial reefing and lateral release, to identify possible risk factors for recurrent dislocations and residual complaints after surgical treatment and to assess functional outcome. METHODS: We performed a retrospective study of 38 patients (43 knees) treated with all-inside technique between 2001 and 2010...
June 24, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28646382/high-incidence-of-acute-and-recurrent-patellar-dislocations-a-retrospective-nationwide-epidemiological-study-involving-24-154-primary-dislocations
#18
Kasper Skriver Gravesen, Thomas Kallemose, Lars Blønd, Anders Troelsen, Kristoffer Weisskirchner Barfod
PURPOSE: The purpose of this study was to investigate the Danish population as a whole from 1994 to 2013 to find the incidence of acute and recurrent patellar dislocation. METHODS: The study was performed as a descriptive epidemiological study. The Danish National Patient Registry was retrospectively searched from 1994 to 2013 to find the number of acute and recurrent patellar dislocation. National population data were collected from Statistics Denmark. RESULTS: The period 1994-2013 saw a total registration of 24,154 primary patellar dislocations...
June 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28641970/the-interaction-of-caseload-and-usage-in-determining-outcomes-of-unicompartmental-knee-arthroplasty-a-meta-analysis
#19
Thomas W Hamilton, James M Rizkalla, Leonidas Kontochristos, Barbara E Marks, Stephen J Mellon, Christopher A F Dodd, Hemant G Pandit, David W Murray
BACKGROUND: Outcomes after unicompartmental knee arthroplasty (UKA) are variable and influenced by caseload (UKA/y) and usage (percentage of knee arthroplasty that are UKA), which relates to indications. This meta-analysis assesses the relative importance of these factors. METHODS: MEDLINE (Ovid), Embase (Ovid), and Web of Science (ISI) were searched for consecutive series of cemented Phase 3 Oxford medial UKA. The primary outcome was revision rate/100 observed component years (% pa) with subgroup analysis based on caseload and usage...
May 11, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28633148/clinical-and-functional-results-of-119-patients-with-knee-dislocations
#20
Nicholas R Scarcella, Douglas S Weinberg, Stephen Bowen, Heather A Vallier
OBJECTIVES: To describe clinical results and functional outcomes of knee dislocations treated with a consistent strategy within our institution. DESIGN: Retrospective case series. SETTING: Level 1 trauma center. PATIENTS: One hundred nineteen patients were treated at one institution between 2000 and 2014 for knee dislocation. MAIN OUTCOME MEASUREMENTS: Knee range of motion, functional instability, and complications were recorded...
July 2017: Journal of Orthopaedic Trauma
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