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Journal of Orthopaedics

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https://www.readbyqxmd.com/read/29033502/biomechanical-model-based-evaluation-of-total-hip-arthroplasty-therapy-outcome
#1
Jörg Eschweiler, Julia Hawlitzky, Valentin Quack, Markus Tingart, Björn Rath
OBJECTIVE: Total-hip-arthroplasties are performed to treat patients with osteoarthritis. Surgical planning is usually based on specific radiographs. These information could also be used as data for biomechanical modelling. METHODS: Models are rarely used during clinical practice. Our aim was to analyze model-based the pre- and postoperatively hip-biomechanic. Pre- and postoperative X-rays of 30 patients were examined by using 4 biomechanical-models. RESULTS: The received results showed variations e...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28970669/how-does-reverse-shoulder-replacement-change-proprioception-in-patients-with-cuff-tear-arthropathy-a-prospective-optical-3d-motion-analysis-study
#2
Pit Hetto, Matthias Bülhoff, Boris Sowa, Matthias C Klotz, Michael W Maier
BACKGROUND: Reverse total shoulder arthroplasty (RSA) can improve function in cuff tear arthropathy (CTA) shoulders, but limited data are available on the effect of RSA on proprioception. The purpose of this study was the evaluation of the proprioception after RSA. METHOD: This study included fifteen consecutive patients (n = 15) who received an RSA. We measured an active angle reproduction (AAR) by a novel 3D motion analysis using the Heidelberg upper extremity model (HUX)...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28883689/lateral-column-lengthening-for-adolescent-idiopathic-pes-planovalgus-deformity-systematic-review
#3
REVIEW
Sanjay Kumar, S V Sonanis
Pes planovalgus is the commonest foot deformity in children and presents with wide range of severity and symptoms. Surgery is mostly indicated for significant malalignment, resistant to non-surgical management. Lateral column lengthening is considered an appealing option as does not involve arthrodesis and allows for further growth and foot development. METHODS: We conducted a systematic review on lateral column lengthening for pes planovalgus deformity in line with PRISMA-P Checklist...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878518/on-demand-antibiotic-eluting-microchip-for-implanted-spinal-screws
#4
Adam E M Eltorai
OBJECTIVE: Surgical instrumentation of the spine is susceptible to infection. Intravenous antibiotics is a current mainstay of treating infection; however penetrating the bacterial biofilm and directly targeting the source of the infection is challenging. METHODS: Using multiple reservoirs of discrete drug doses, microchips represent a new technology capable of on-demand drug release over long periods of time. RESULTS: A novel solution of integrating vancomycin-eluting microchips into pedicle screws in order directly target and treat spinal infections is proposed...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878517/comparison-of-metal-ion-levels-in-patients-with-hip-resurfacing-versus-total-hip-arthroplasty
#5
Craig W Forsthoefel, Nicholas M Brown, Mark L Barba
Mechanical wear at the articular surface and corrosive processes at modular junctions, such as the trunnion, are responsible for metal ions production. We retrospectively reviewed 64 patients who underwent THA with a metal on metal bearing surface and 34 patients with hip Resurfacing. Metal ion measurements, six-week post-op radiographs, and functional scores were included in the analysis. Cobalt ion levels were significantly elevated in THA patients, 2.95 μg/L as compared to resurfacing patients, (2.95 versus 1...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878516/enhanced-recovery-principles-applied-to-revision-hip-and-knee-arthroplasty-reduces-length-of-stay-and-blood-transfusion
#6
Michael Kent, Nick Calvert, Kevin Blades, Alex Swann, Piers Yates
INTRODUCTION: This is the first study reporting the application of Enhanced Recovery Principles (ERP) to revision arthroplasty. METHOD: Retrospective series of 132 revision hip and knee replacements treated with ERP. RESULTS: Infiltration was associated with reduced LOS in knees (6 vs 8.5 days), lower PCA usage and incidence of transfusion in knees (2 vs 3 days) and hips (1 vs 6 days). Revisions for infection had a longer LOS (5.4 vs 11...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878515/review-medial-collateral-ligament-injuries
#7
REVIEW
Kyle Andrews, Alex Lu, Lucas Mckean, Nabil Ebraheim
The medial collateral ligament (MCL) is a major stabilizer of the knee joint. It is the most common ligament injured in the knee, particularly in athletes, and has been reported to be torn in 7.9% of all knee injuries.(2) The MCL has a complex, layered anatomy with multiple insertions and functions. Minor trauma can cause tearing of the superficial portion whereas higher energy mechanisms can disrupt both the deep and superficial layers. History and physical are often adequate, but the gold standard for diagnosis is MRI...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878514/traumatic-cervical-epidural-hematoma-due-to-fusion-mass-fracture-following-elective-rod-removal
#8
Dominic T Kleinhenz, Adam E M Eltorai, Stephen Huo, Alan H Daniels
Many studies have examined complications associated with spinal instrumentation, however, few have analyzed complications associated with removal. In this case report, we outline the course of a patient who presented with cervical epidural hematoma secondary to fusion mass fracture five years after removal of spinal hardware.
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878513/fibromas-arising-from-the-posterior-cruciate-ligament-tendon-sheath-in-the-bilateral-knee-joints-case-report
#9
Nobuyuki Kumahashi, Suguru Kuwata, Hiroshi Takuwa, Soichiro Yamamoto, Yuji Uchio
Fibroma of tendon sheath in the intra-knee joint is a very rare and benign soft-tissue tumour which has been reported unilaterally in the various aged people. To help distinguish it from other similar kinds of lesions and symptoms including osteoarthritis, we report the oldest case of fibromas arising from the posterior cruciate ligament tendon sheath in the bilateral knee joints within one year of each other confirmed with magnetic resonance imaging (MRI) features, operative findings and histological examination...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878512/comparison-of-postoperative-complications-after-total-hip-arthroplasty-among-patients-receiving-aspirin-enoxaparin-warfarin-and-factor-xa-inhibitors
#10
Perez Agaba, Beau J Kildow, Herman Dhotar, Thorsten M Seyler, Michael Bolognesi
Optimal prophylaxis for prevention of venous thromboembolism (VTE) after total joint arthroplasty (TJA) remains debated. The purpose of this study was to compare postoperative complications in patients receiving different VTE chemoprophylactic regimens. Using a nationwide healthcare database, 72,670 THA patients without a history of VTE were identified. Study cohorts received VTE prophylaxis within 30 days postoperatively. Odds ratios and 95% confidence intervals were used to assess 30-day and 90-day postoperative complications (hematoma, hemorrhage, transfusion, pulmonary embolism (PE), VTE, prosthetic joint infection (PJI), and incision/drainage (I&D))...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28878511/management-of-the-open-book-apc-ii-pelvis-survey-results-from-pelvic-and-acetabular-surgeons-in-the-united-kingdom
#11
James R Gill, Colin Murphy, Ben Quansah, Andrew Carrothers
The results of this questionnaire show that the opinion of pelvic and acetabular surgeons in the UK and Republic of Ireland vary as to the best method of fixation for APC II pelvic injuries. A single anterior plate and single sacroiliac joint (SIJ) screw was the most popular fixation method, chosen by 34%. 74% favour a single, opposed to two orthogonal anterior plates. Posterior fixation supplementing anterior plating is preferred by 63% of surgeons, 58% use a single versus 42% two SIJ screws. Case by case assessment and intraoperative screening to assess stability is essential when considering whether to stabilise the SIJ...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28860687/bone-remodelling-around-the-metha-%C3%A2-short-stem-implant-clinical-and-dual-energy-x-ray-absorptiometry-dxa-results
#12
Markus Fischer, Nicholas A Beckmann, Hans-Georg Simank
OBJECTIVE: Bony ingrowth of short stems is under investigation. METHOD: Over one year bony reactions around the Metha(®) stem were investigated using the DXA method in a standardized zonal system (19 ROIs). Clinical results were documented using the HHS. RESULTS: HHS significantly improved from 46 points to 97 points. After one year bone marrow density (BMD) increased in the lateral distal and lateral proximal areas as well as in the mid medial area...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28860686/polyethylene-and-highly-cross-linked-polyethylene-for-cemented-total-hip-arthroplasty-a-comparison-of-over-ten-year-clinical-and-radiographic-results
#13
Tomotoshi Kawata, Koji Goto, Kazutaka So, Yutaka Kuroda, Shuichi Matsuda
INTRODUCTION: We investigated the long-term tribological outcomes of conventional polyethylene (CPE) and highly cross-linked polyethylene (HXLPE). METHODS: Ninety-four consecutive primary cemented THAs were performed using either HXLPE or CPE at our hospital. CPE sockets were used in 26 hips, and HXLPE sockets were implanted in 68 hips. RESULTS: A 10-year follow-up was completed for 69 cases. Linear wear rates of 0.138 ± 0.074 mm/year for CPE and 0...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28860685/modyfied-wedge-osteotomy-for-osteoarthritis-of-elbow-secondary-to-osteochondritis-dissecans-in-adolecent-with-multiple-epiphyseal-dysplasia-a-case-report
#14
Takashi Yoshida, Wook-Cheol Kim, Yoshinobu Oka, Masashi Nakase, Atsushi Nishida, Hiroaki Wada, Yuji Arai, Toshikazu Kubo
Multiple epiphyseal dysplasia (MED) may be complicated by osteochondritis dissecans (OCD), most commonly reported in the knee, but involvement of the elbow is very rare. Optimal treatment for MED-associated elbow OCD and treatment outcome have not been established. This report describes the case of an adolescent male patient with elbow OCD treated by arthroscopic drilling at a previous clinic. Progression of osteoarthritis and radial head subluxation were observed. Resection of the osteophytes and modified wedge osteotomy of the lateral condyle were then performed, and a favorable result was obtained by decompression and sufficient congruency of the radiohumeral joint...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28860684/experience-of-the-posterior-lip-augmentation-device-in-a-regional-hip-arthroplasty-unit-as-a-treatment-for-recurrent-dislocation
#15
L Hoggett, C Cross, T Helm
INTRODUCTION: Dislocation after total hip arthroplasty (THA) remains a significant complication of the procedure and is the third leading cause for revision THA. One technique for treatment of this complication is the use of the posterior lip augmentation device (PLAD). We describe our experience using the PLAD including complication rates. METHODS: A retrospective review of 55 PLADs (54 patients) was carried out following identification from electronic theatre records...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28860683/simultaneous-ipsilateral-knee-arthroscopy-and-unicondylar-knee-arthroplasty-is-effective-for-bicompartmental-symptoms
#16
Akshay Lakra, Taylor Murtaugh, Jeffrey A Geller, William Macaulay, Roshan P Shah
BACKGROUND: Patients with unicompartmental radiographic arthritis but bicompartmental symptoms pose a clinical challenge. Some surgeons may perceive it as a contraindication for unicondylar knee arthroplasty (UKA). We investigated patient outcomes 2 years after simultaneous ipsilateral arthroscopy and UKA as compared to a similar group of patients who had total knee replacement (TKA) for a similar clinical presentation. METHODS: We identified 9 patients with simultaneous ipsilateral arthroscopy and UKA between 2004 and 2013, and 12 clinically similar patients treated with TKA...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28855766/effect-of-mental-health-on-post-operative-infection-rates-following-cervical-spine-fusion-procedures
#17
Emin Dedeogullari, Permsak Paholpak, Kaku Barkoh, Joshua Lucas, Larry Lee, Christopher Wang, Patrick C Hsieh, Jeffrey C Wang, Zorica Buser
PURPOSE: The aim of this study was to determine whether having an existing psychiatric disorder is a risk factor for developing post-operative infection following anterior cervical discectomy with fusion (ACDF) and posterior cervical fusion (PCF). RESULTS: A total of 34,007 patients within Humana database was included in this study. Patients with mental disorders had post-operative infection rates of 3.2% and 4.4% within 1 and 3months, compared to 2.5% and 3.5% in patients without a psychiatric disorder (p < 0...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28839353/strain-measurements-of-the-tibial-insert-of-a-knee-prosthesis-using-a-knee-motion-simulator
#18
Toshihiro Sera, Yuya Iwai, Takaharu Yamazaki, Tetsuya Tomita, Hideki Yoshikawa, Hisahi Naito, Takeshi Matsumoto, Masao Tanaka
OBJECTIVE: The longevity of a knee prosthesis is influenced by the wear of the tibial insert due to its posture and movement. In this study, we assumed that the strain on the tibial insert is one of the main reasons for its wear and investigated the influence of the knee varus-valgus angles on the mechanical stress of the tibial insert. METHODS: Knee prosthesis motion was simulated using a knee motion simulator based on a parallel-link six degrees-of-freedom actuator and the principal strain and pressure distribution of the tibial insert were measured...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28839352/reconstruction-of-traumatic-bone-loss-using-the-induced-membrane-technique-preliminary-results-about-11-cases
#19
Noufanangue Kanfitine Kombate, Atchi Walla, Gamal Ayouba, B Moïse Bakriga, Yaovi Yannick Dellanh, Anani Grégoire Abalo, Assang Michel Dossim
INTRODUCTION: The use of Masquelet technique is a serious option to consider for biologic reconstruction of severe bone loss. Here is exposed a continuous and prospective study on bone loss management using that technique. The aims of this study were to assess epidemiology of bone loss due either to trauma or to non-unions and to give preliminary results. PATIENTS AND METHODS: It was a prospective study from April 2015 to december 2016 involving patients treated using the induced membrane technique for a diaphyseal bone defect due either to trauma or non-unions...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28839351/relationship-between-severity-of-knee-osteoarthritis-and-radiography-findings-of-lower-limbs-a-cross-sectional-study-from-the-toei-survey
#20
Mitsuru Hanada, Hironobu Hoshino, Hiroshi Koyama, Yukihiro Matsuyama
OBJECTIVE: This study aimed to compare radiographic parameters among radiographic severity of the medial knee osteoarthritis and between men and women in a rural Japanese population. METHODS: We measure nine radiographic parameters of the whole lower extremity in participants with neutral or varus alignment. RESULTS: Age and body mass index were related to the knee osteoarthritis severity. The knee osteoarthritis depended on not only varus alignment in the whole leg, but also varus deformity of proximal tibial condyle and the tibial plateau inclination, especially in women...
December 2017: Journal of Orthopaedics
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