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Archives of Orthopaedic and Trauma Surgery

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https://www.readbyqxmd.com/read/28921041/stabilization-of-scaphoid-type-b2-fractures-with-one-or-two-headless-compression-screws
#1
S Quadlbauer, T Beer, Ch Pezzei, J Jurkowitsch, A Tichy, T Hausner, M Leixnering
INTRODUCTION: Fractures of the scaphoid account for the most commonly injured carpal bone. Minimally displaced fractures of the waist will heal in 85-90% when using a below elbow cast. However, fractures with displacement have a higher risk for nonunion. Therefore, open reduction and fixation with headless compression screws (HCS) have become the preferred method of treatment. The aim of this study was to compare the radiological and clinical outcome of unstable scaphoid B2 type fractures, stabilized using one or two headless compression screws...
September 18, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28918534/do-surgical-helmet-systems-affect-intraoperative-wound-contamination-a-randomised-controlled-trial
#2
Otis C Shirley, Ali Bayan, Mark Zhu, James P Dalton, Siouxsie Wiles, Simon W Young
BACKGROUND: Deep infection following arthroplasty remains a devastating complication. Some registry data suggests that modern positive-pressure surgical helmet systems (SHS) are associated with a paradoxical increase in infection rates, and as such their role in arthroplasty remains unclear. The aim of this study was to investigate whether SHS increase wound contamination in total knee arthroplasty (TKA) and if this contamination can be reduced by placing tape around the gown/glove interface...
September 16, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28918517/detecting-cam-type-deformities-on-plain-radiographs-what-is-the-optimal-lateral-view
#3
Christian Hipfl, Markus Titz, Catharina Chiari, Veronika Schöpf, Franz Kainberger, Reinhard Windhager, Stephan Domayer
PURPOSE: Radial magnetic resonance imaging (MRI) is the most accurate diagnostic tool in assessing cam-type femoroacetabular impingement. Plain radiographs, however, are useful for the initial diagnosis in the daily practice and there is still debate regarding the optimal lateral view. The purpose of this study was to investigate the reliability of detecting cam deformities using the frog-leg view or the 45° Dunn view by comparison with radial MRI. MATERIAL: 66 consecutive hips with plain radiographs (36 with AP and frog-leg views, 30 with AP and 45° Dunn views) and radial MRI were assessed...
September 16, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28918438/no-difference-in-outcome-for-open-versus-arthroscopic-rotator-cuff-repair-a-prospective-comparative-trial
#4
Xavier Bayle, Thuy-Trang Pham, Marie Faruch, Aurelie Gobet, Pierre Mansat, Nicolas Bonnevialle
PURPOSE: Arthroscopic techniques tend to become the gold standard in rotator cuff repair. However, little data are reported in the literature regarding the improvement of postoperative outcomes and re-tear rate relative to conventional open surgery. The aim of this study was to compare clinical outcomes and cuff integrity after arthroscopic versus open cuff repair. METHODS: We prospectively assessed clinical outcomes and cuff integrity after an arthroscopic or open rotator cuff repair with a minimum follow-up of 12 months...
September 16, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28916885/geometric-analysis-and-clinical-outcome-of-two-cemented-stems-for-primary-total-hip-replacement-with-and-without-modular-necks
#5
Marcel Haversath, Christine Wendelborn, Marcus Jäger, Boris Schmidt, Wojciech Kowalczyk, Stefan Landgraeber
INTRODUCTION: Restoration of the physiological biomechanical principles of the hip is crucial in total hip replacement. The aim of this study was to compare an arthroplasty system with different offset options (a: Exeter(®)) with a dual-modular stem (b: Profemur Xm(®)). MATERIALS AND METHODS: A local and an inertial coordinate system were used to assist the description of the components' assembly in the prosthesis. A resection line of the femoral head in standard position was added to the arthroplasties and geometric parameters were measured...
September 15, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28914349/reverse-total-shoulder-arthroplasty-for-type-i-fracture-sequelae-after-internal-fixation-of-proximal-humerus-fractures
#6
Benedikt Schliemann, Christina Theisen, Clemens Kösters, Michael J Raschke, Andre Weimann
INTRODUCTION: Complications after internal fixation of proximal humerus fracture are common and may require surgical revision. Reverse total shoulder arthroplasty (RTSA) is frequently performed in such cases. The aim of the present study was to evaluate the functional results and complications after RTSA for the treatment of type I fracture sequelae after internal fixation of proximal humerus fractures. MATERIALS AND METHODS: 26 patients (18 female, 8 male) underwent surgical revision of type I fracture sequelae of the proximal humerus after locking plate (n = 22) or intramedullary nail (n = 4) fixation...
September 15, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28905107/effect-of-changes-of-femoral-offset-on-abductor-and-joint-reaction-forces-in-total-hip-arthroplasty
#7
Hannes A Rüdiger, Maïka Guillemin, Adeliya Latypova, Alexandre Terrier
BACKGROUND: Anatomical reconstruction in total hip arthroplasty (THA) allows for physiological muscle function, good functional outcome and implant longevity. Quantitative data on the effect of a loss or gain of femoral offset (FO) are scarce. The aim of this study was to quantitatively describe the effect of FO changes on abductor moment arms, muscle and joint reactions forces. METHODS: THA was virtually performed on 3D models built from preoperative CT scans of 15 patients undergoing THA...
September 13, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28889244/lumbar-subtotal-corpectomy-non-fusion-model-produced-using-a-novel-prosthesis
#8
Jiantao Liu, Feng Zhang, Zhengchao Gao, Yuhuan Li, Binbin Niu, Xijing He
OBJECTIVE: In this study, we aimed to design a movable artificial lumbar complex (MALC) prosthesis for non-fusion reconstruction after lumbar subtotal corpectomy and to establish an in vitro anterolateral lumbar corpectomy non-fusion model for evaluating the biomechanical stability, preservation of segment movements and influence on adjacent inter-vertebral movements of this prosthesis. METHODS: Imaging was performed on a total of 26 fresh goat lumbar spine specimens to determine which of the specimens did not meet the requirements (free of deformity and fractures); the residual specimens were randomly divided into an intact group, a fusion group and a non-fusion group...
September 9, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28887648/evaluation-of-donor-site-morbidity-after-medial-triceps-brachii-free-flap-for-lower-limb-reconstruction
#9
A Delgove, R Weigert, V Casoli
INTRODUCTION: The medial head of the triceps brachii muscle (MTB)-free flap is an attractive solution to cover small-to-medium defects of the lower limb. This muscular head has no well-identified function, suggesting minimal impact of its removal on elbow mobility. The aim of this study was to evaluate the safety and reliability of the harvest procedure and the functional and cosmetic morbidity of this donor site. MATERIALS AND METHODS: Twenty-four consecutive MTB-free flaps were performed for reconstructive surgery of the lower limb between 2011 and 2015...
September 8, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28884190/abstracts
#10
(no author information available yet)
No abstract text is available yet for this article.
September 7, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28865042/influence-of-undersized-cementless-hip-stems-on-primary-stability-and-strain-distribution
#11
Andreas Fottner, Matthias Woiczinski, Manuel Kistler, Christian Schröder, Tobias F Schmidutz, Volkmar Jansson, Florian Schmidutz
INTRODUCTION: Undersizing of cementless hip stems is a risk factor for aseptic loosening and early subsidence. The purpose of this study was to evaluate the effects of undersized stems and determine whether a biomechanical study can predict the clinical results. MATERIALS AND METHODS: Three consecutive sizes of a clinically proven stem (CLS Spotorno) were implanted into six composite femora (size large, Sawbones(®)), respectively. According to the Canal Fill Index (CFI), two stems (size 11...
September 1, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28864862/is-the-novel-olecranon-tension-plate-a-valid-alternative-to-tension-band-wiring-of-olecranon-fractures-a-biomechanical-study-on-cadaver-bones
#12
Dominik Gruszka, Charlotte Arand, Julia Greenfield, Tobias E Nowak, Raphael Kuechle, Sebastian Kuhn, Pol M Rommens
INTRODUCTION: Tension band wiring (TBW) used for olecranon fractures is afflicted with a high rate of complications. The aim of this study was to compare the stability of the TBW versus an alternative, novel low-profile olecranon tension plate (OTP) with angular stable screws in a simulated complex fracture model. MATERIALS AND METHODS: Nine fresh-frozen pairs of cadaver proximal ulnae with an oblique osteotomy and an additional wedge fragment simulating an unstable fracture were tested...
September 1, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28861676/machete-injuries-to-the-upper-extremity
#13
Chester J Donnally, William Hannay, Derek A Rapp, Nikola Lekic, Seth D Dodds
PURPOSE: We intend to describe and analyze the spectrum of upper extremity injuries that arises from both accidental and intentional machete injuries with a focus on associated complications and comorbidities. This review is the first from a United States institution, and the only from a designated level 1 trauma center. METHODS: A retrospective review of machete related upper extremity injuries admitted to a level 1 trauma center from 2008 to 2016. The following data was collected on admitted patients: demographics, mechanism of injury, surgical management, and complications...
August 31, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28852840/biomechanical-study-of-novel-unilateral-c1-posterior-arch-screws-and-c2-laminar-screws-combined-with-an-ipsilateral-crossed-c1-c2-pedicle-screw-rod-fixation-for-atlantoaxial-instability
#14
Kai Shen, Zhongliang Deng, Junsong Yang, Chao Liu, Ranxi Zhang
INTRODUCTION: Current surgical methods to treat atlantoaxial instability pose potential risks to the surrounding blood vessels and nerves of operative approach. Therefore, more secure and highly effective methods are expected. This study sought to assess the biomechanical efficacy of a novel unilateral double screw-rod fixation system by comparing with traditional and emerging fixation methods in cadaveric models. MATERIALS AND METHODS: Ligamentous cervical spines (C0-C7) from ten fresh cadaveric specimens were used to complete range of motion (ROM) test in their intact condition (control group), destabilization, and stabilization after different fixations, including unilateral C1-C2 pedicle screws (PS) with a screw-rod system (Group A), bilateral C1-C2 PS with screw-rod systems (Group B), unilateral C1 posterior arch screws (PAS) and C2 laminar screws (LS) combined with an ipsilateral paralleled C1-C2 PS-rod (Group C), and unilateral C1 PAS and C2 LS combined with an ipsilateral crossed C1-C2 PS-rod (Group D)...
August 29, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28852837/skeletal-muscle-metastasis-from-the-most-common-carcinomas-orthopedic-surgeons-deal-with-a-systematic-review-of-the-literature
#15
Juan Pretell-Mazzini, Jaime Zorrilla S de Neyra, Gonzalo Luengo-Alonso, Shai Shemesh
INTRODUCTION: There is scarce information in the literature dealing with the clinical presentation, management and oncologic outcomes of skeletal muscle metastases (SMM). We sought to perform a systematic review of the literature to investigate: (1) tumor characteristics of SMM, (2) therapeutic approach, and (3) oncological outcomes. METHODS: A systematic review of the literature was performed using PubMed and EMBASE search engines. A total of 3231 references were reviewed and 49 studies were included...
August 29, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28849298/varus-valgus-stability-at-90%C3%A2-flexion-correlates-with-the-stability-at-midflexion-range-more-widely-than-that-at-0%C3%A2-extension-in-posterior-stabilized-total-knee-arthroplasty
#16
Kazunori Hino, Tatsuhiko Kutsuna, Kunihiko Watamori, Hiroshi Kiyomatsu, Yasumitsu Ishimaru, Jun Takeba, Seiji Watanabe, Yoshitaka Shiraishi, Hiromasa Miura
INTRODUCTION: Midflexion stability can potentially improve the outcome of total knee arthroplasty (TKA). The purpose of this study was to evaluate the correlation between varus-valgus stability at 0° of extension and 90° of flexion and that at the midflexion range in posterior-stabilized (PS)-TKA. MATERIALS AND METHODS: Forty-three knees that underwent PS-TKA were evaluated. Manual mild passive varus-valgus stress was applied to the knees, and the postoperative maximum varus-valgus stability was measured every 10° throughout range of motion, using a navigation system...
August 28, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28849270/coronal-tibiofemoral-subluxation-is-not-an-independent-risk-factor-for-total-knee-arthroplasty-in-patients-with-moderate-to-severe-varus-osteoarthritis-data-from-the-osteoarthritis-initiative
#17
Paul Schadler, Max Kasparek, Fritz Boettner, Mirco Sgroi, Martin Faschingbauer
PURPOSE: Only few prognostic factors for progression of knee osteoarthritis are well established, including varus malalignment. The purpose of this study was to evaluate whether coronal tibiofemoral subluxation is a predictor for total knee arthroplasty. METHODS: Patients from the progression subcohort of the longitudinal database "Osteoarthritis Initiative" with moderate to severe osteoarthritis and varus malalignment of greater than 3 degrees were included. Patients who underwent total knee arthroplasty were matched with patients treated conservatively...
August 28, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28849268/focal-osteonecrosis-in-the-femoral-head-following-stable-anatomic-fixation-of-displaced-femoral-neck-fractures
#18
Lionel E Lazaro, Jonathan P Dyke, Ryan R Thacher, Joseph T Nguyen, David L Helfet, Hollis G Potter, Dean G Lorich
INTRODUCTION: Femoral head (FH) osteonecrosis (ON) and subsequent segmental collapse is a major concern following displaced femoral neck fractures (FNF). We aimed to quantify residual perfusion to the FH following FNF and evaluate the viability of the FH overtime after surgical fixation. MATERIALS AND METHODS: Twenty-three patients with FNF underwent dynamic contrast-enhanced (DCE)-MRI to estimate bone perfusion in the FH, using the contralateral side as control...
August 28, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28840325/tunnel-widening-after-single-versus-double-bundle-anterior-cruciate-ligament-reconstruction-a-randomized-8-year-follow-up-study
#19
S Beyaz, Ü Ö Güler, Ş Demir, S Yüksel, B M Çınar, G Özkoç, S Akpınar
OBJECTIVE: The purpose of this study was to compare the single-bundle (SB) and double-bundle (DB) surgical techniques for anterior cruciate ligament (ACL) reconstruction with regard to tunnel widening, isokinetic muscle strength, and clinical outcomes over an 8-year follow-up period. METHODS: This study included 31 patients with ACL injury who underwent ACL reconstruction via the SB (n = 16) or the DB (n = 15) technique. Isokinetic and concentric strength measurements of the quadriceps and hamstring muscles were conducted at postoperative 6 months and postoperative 8 years, and 3D-CT scans of the knee joints were performed on the 2nd, 3rd and 6th month, and the 8th year postoperatively...
August 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28825132/new-reconstruction-for-bone-integration-of-non-vascularized-autogenous-bone-graft-with-better-bony-union-and-revascularisation
#20
J H Dolderer, S Geis, R Mueller-Wille, J L Kelly, O Lotter, A Ateschrang, L Prantl, D Schiltz
INTRODUCTION: Phalangeal defects are often seen after tumor resection, infections, and in complex open hand fractures. In many cases, reconstruction is difficult and amputation is performed to avoid prolonged rehabilitation that is often associated with a poor outcome. In these cases, the maintenance of length and function presents a reconstructive challenge. METHODS: We reviewed 11 patients who underwent extensive phalangeal reconstruction with non-vascularized bone graft from the iliac crest using a key-in-slot-joint technique to provide acceptable function and bony union...
August 19, 2017: Archives of Orthopaedic and Trauma Surgery
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