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https://www.readbyqxmd.com/read/27909661/the-oblique-mattress-lasso-loop-stitch-for-arthroscopic-capsulolabral-repair
#1
Nata Parnes, Maryellen Blevins, Monica Morman, Paul Carey
Arthroscopic capsulolabral repair during shoulder stabilization surgery requires the use of suture anchors. Several arthroscopic suturing techniques for capsulolabral repair have been described, and each carries very specific advantages and disadvantages with regard to risk, patient satisfaction, and functional outcomes. The purpose of this report is to describe the oblique mattress lasso-loop stitch. This stitch (1) provides strong initial fixation of the labrum, (2) establishes labral height and allows for larger capsular plication if needed, (3) prevents the suture from cutting through the radial fibers of the glenoid labrum, (4) prevents knot migration to the articular side and loosening of the knot, and (5) requires fewer implants and preserves glenoid bone stock by increasing the amount of labrum and capsule that can be reattached to the glenoid with a single-loaded suture anchor...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27900336/optimal-lateral-row-anchor-positioning-in-posterior-superior-transosseous-equivalent-rotator-cuff-repair-a-micro-computed-tomography-study
#2
Matthias A Zumstein, Sumit Raniga, Agatha Labrinidis, Kevin Eng, Gregory I Bain, Beat K Moor
BACKGROUND: The optimal placement of suture anchors in transosseous-equivalent (TOE) double-row rotator cuff repair remains controversial. PURPOSE: A 3-dimensional (3D) high-resolution micro-computed tomography (micro-CT) histomorphometric analysis of cadaveric proximal humeral greater tuberosities (GTs) was performed to guide optimal positioning of lateral row anchors in posterior-superior (infraspinatus and supraspinatus) TOE rotator cuff repair. STUDY DESIGN: Descriptive laboratory study...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27886360/high-proximal-migration-in-cemented-acetabular-revisions-operated-with-bone-impaction-grafting-47-revision-cups-followed-with-rsa-for-17-years
#3
Maziar Mohaddes, Peter Herberts, Henrik Malchau, Per-Erik Johanson, Johan Kärrholm
BACKGROUND: Bone impaction grafting is a biologically and mechanically appealing option in acetabular revision surgery, allowing restitution of the bone stock and restoration of the biomechanics. We analysed differences in proximal migration of the revision acetabular components when bone impaction grafting is used together with a cemented or an uncemented cup. PATIENTS AND METHODS: 43 patients (47 hips), revised due to acetabular loosening and judged to have less than 50% host bone-implant contact were included...
November 22, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27857822/revision-of-metal-on-metal-hip-arthroplasty-with-well-fixed-and-positioned-acetabular-component-using-a-dual-mobility-head-and-review-of-literature
#4
Guillem Figueras, Ramón Vives Planell, Ramón Serra Fernàndez, Joan Camí Biayna
BACKGROUND: As a consequence of use of metal-on-metal hip arthroplasties some patients have precised revision for pain or metal hipersensivity reactions among other causes. We propose to salvage monoblock acetabular component and femoral component using a dual-mobility head and perform a lower morbidity operation in young patients preserving host bone stock in cases with well fixed and positioned components. OBJECTIVE: (1) What clinical problems have been reported in patients with Metal-on-metal hip arthroplasties? (2) Could the tribocorrosion potentially cause a fracture of neck femoral component? (3) Can be the dual-mobility head a recourse in metal-on-metal hip revision? METHODS: Ten patients were revised for pain or/and raised Cobalt/Chromium levels between August 2012 and December 2015...
2016: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/27846875/the-design-of-a-randomised-controlled-trial-to-evaluate-the-cost-effectiveness-of-the-posterolateral-versus-the-direct-anterior-approach-for-tha-polada-trial
#5
K Rykov, I H F Reininga, B A S Knobben, M S Sietsma, B L E F Ten Have
BACKGROUND: Total hip arthroplasty (THA) is one of the most successful orthopaedic procedures. Because of the increasing number of THAs, a growing demand for faster recovery and a greater emphasis on cost-effectiveness, minimally invasive THAs have been introduced in the last decades. The direct anterior approach is a minimally invasive, tissue-sparing approach in which intermuscular planes are used. Theoretically, this approach should result in a faster recovery of physical functioning and higher health-related quality of life...
November 15, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27821999/early-results-of-the-lps%C3%A2-limb-preservation-system-in-the-management-of-periprosthetic-femoral-fractures
#6
M Curtin, C Bryan, E Murphy, C G Murphy, W Curtin
INTRODUCTION: Achieving skeletal fixation in the presence of progressive bone loss is a surgical challenge, especially in cases of periprosthetic fracture (PPF). Unpredictable fracture patterns and preexisting bone loss frequently combine in this patient group. Megaprosthetic arthroplasty allows for immediate mobilisation and shorter periods of rehabilitation. We describe the clinical outcomes of a cohort of LPS™ megaprostheses performed for PPF by a single surgeon at our institution...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27819644/patient-specific-instruments-for-complex-tumor-resection-reconstruction-surgery-within-the-pelvis-a-series-of-4-cases
#7
Eduard Cernat, Pierre-Louis Docquier, Laurent Paul, Xavier Banse, Ion-Bogdan Codorean
The pelvis bone resection-reconstruction surgery is one of the most challenging fields in orthopedics. Being applied for tumors, as for other complex reconstruction cases, this type of surgery needs careful planning and is time consuming, in order to obtain proper accuracy. Unfortunately not all the time the expected accuracy is met, with consequences for the patients. PSI proved to provide good cutting accuracy during simulated tumor surgery within the pelvis. This article present a series of 4 patients operated in our department between June 2014 and Mars 2015 for tumors resectionreconstructions...
2016: Chirurgia
https://www.readbyqxmd.com/read/27817994/favorable-early-results-of-impaction-bone-grafting-with-reinforcement-mesh-for-the-treatment-of-paprosky-3b-acetabular-defects
#8
Bradford S Waddell, Friedrich Boettner, Alejandro Gonzalez Della Valle
BACKGROUND: We present the early institutional experience with the use of impaction bone grafting, mesh augmentation, and cement fixation of an all-polyethylene cup for the treatment of Paprosky 3B acetabular defects during revision total hip arthroplasty. METHODS: Between 2005 and 2014, 21 patients (9 men, 12 women) with Paprosky 3B acetabular defects who underwent revision total hip arthroplasty using this technique were reviewed clinically and radiographically...
October 5, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27803218/the-exeter-universal-cemented-femoral-stem-at-20-to-25-years-a-report-of-382-hips
#9
T G Petheram, S L Whitehouse, H A Kazi, M J W Hubble, A J Timperley, M J Wilson, J R Howell
AIMS: We present a minimum 20-year follow-up study of 382 cemented Exeter Universal total hip arthroplasties (350 patients) operated on at a mean age of 66.3 years (17 to 94). PATIENTS AND METHODS: All patients received the same design of femoral component, regardless of the original diagnosis. Previous surgery had been undertaken for 33 hips (8.6%). During the study period 218 patients with 236 hips (62%) died, 42 hips (11%) were revised and 110 hips (29%) in 96 patients were available for review...
November 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27791415/nine-year-results-of-whole-femoral-head-allograft-with-articular-cartilage-for-acetabular-impaction-grafting-in-revision-hip-replacement
#10
E Drampalos, A Fadulelmola, R Mohammed, D Shaw, S Subramanian, K D Jain, J Hodgkinson
INTRODUCTION Acetabular impaction bone grafting with a cemented polyethylene socket aims to reconstitute the bone stock in hip revision. This is an effective but resource intensive and time consuming technique. Usually, the articular cartilage is removed from the femoral head allograft. Our objective was to assess the late results of using the whole femoral head, retaining the cartilage. METHODS Forty-two acetabular revisions using impacted morselised bone graft (retaining the articular cartilage) and a cemented socket were studied retrospectively...
October 28, 2016: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/27768216/effects-of-various-anchoring-components-and-loading-conditions-on-primary-stability-of-acetabular-revision-implant
#11
Christian Voigt, Andreas Schaller, Carsten Klöhn, Roger Scholz
PURPOSE: In revision total hip arthroplasty, until today, orthopaedic surgeons are missing evidence-based guidelines on cementless acetabular cup fixation. METHODS: 5 finite element models were generated featuring the following anchorage strategies: 1 short peg, 1 long peg, 2 long screws, 3 short screws and zero anchoring components for reference. The micromotions at the implant-bone interface were analyzed for 3 different loadcases, "Seated leg-crossing" (joint force 940 N, impingement force 750 N), "Normal gait" (joint force 1820 N), and "Stumbling" (joint force 4520 N)...
October 15, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27756273/19%C3%A2-years-outcome-after-cementless-total-hip-arthroplasty-with-spongy-metal-structured-implants-in-patients-younger-than-65%C3%A2-years
#12
Ludger Gerdesmeyer, Munjed Al Muderis, Hans Gollwitzer, Norbert Harrasser, Martin Stukenberg, Maria-Angela Clifford, Andreas Toepfer
BACKGROUND: Cementless fixation of total hip arthroplasties (THAs) is often favored in young, high-demanding patients due to the conservation of valuable bone-stock and easier revision if loosening has occurred. Long-term outcome data of the spongy metal structured implant used in the present study in patients younger than 65 years are still lacking. METHODS: We conducted a retrospective chart review and functional investigation (Merle d'Aubigné score, SF-12) of patients younger than 65 years at implantation treated with a spongy metal structured THA (n = 79) from one orthopedic university center from 1985 to 1989...
October 18, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27745808/revisions-for-aseptic-glenoid-component-loosening-after-anatomic-shoulder-arthroplasty
#13
William R Aibinder, Bradley Schoch, Cathy Schleck, John W Sperling, Robert H Cofield
BACKGROUND: Glenoid component loosening is a common indication for revision shoulder arthroplasty. The objective of this study is to assess the longer-term outcomes of patients undergoing revision specifically for aseptic loosening. MATERIALS AND METHODS: Between 1985 and 2005, 34 revision shoulder arthroplasties were performed for aseptic glenoid loosening. Three patients were lost to follow-up. Treatment included component reimplantation in 20 shoulders (group I) or component removal with bone grafting in 11 shoulders (group II)...
October 10, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27739568/impact-of-individual-anatomy-on-the-benefit-of-cup-medialisation-in-total-hip-arthroplasty
#14
Alexandre Terrier, Valérie Parvex, Hannes A Rüdiger
INTRODUCTION: In total hip arthroplasty, cup medialisation with compensatory increase of femoral offset has been proposed to increase the moment arms of abductor muscles. However, this technique is associated with a loss of acetabular bone stock. Previous data indicates that the potential benefit is not constant among patients and is likely related to patient anatomy. METHOD: Therefore, to be able to select patients who would benefit most from this technique, we measured several anatomical parameters of the pelvis and femur in 15 patients; and evaluated correlations between them and the changes of moment arms associated with cup medialisation...
October 8, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27727052/comparative-study-of-total-shoulder-arthroplasty-versus-total-shoulder-surface-replacement-for-glenohumeral-osteoarthritis-with-minimum-2-year-follow-up
#15
Bauke W Kooistra, W Jaap Willems, Eelke Lemmens, Bas P Hartel, Michel P J van den Bekerom, Derek F P van Deurzen
BACKGROUND: Compared with total shoulder arthroplasty (TSA), total shoulder surface replacement (TSSR) may offer the advantage of preservation of bone stock and shorter surgical time, possibly at the expense of glenoid component positioning and increasing lateral glenohumeral offset. We hypothesized that in patients treated for osteoarthritis with a sufficient rotator cuff, TSA and TSSR patients have comparable functional outcome, glenoid component version, and lateral glenohumeral offset...
October 7, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27716461/ct-scan-evaluation-of-glenoid-bone-and-pectoralis-major-tendon-interest-in-shoulder-prosthesis
#16
Laurent Obert, Christelle Peyron, Etienne Boyer, Gauthier Menu, François Loisel, Sébastien Aubry
INTRODUCTION: The shoulder arthroplasty brings satisfaction to patients in terms of quality of life and indolence. However whether anatomic implant or reverse, it does not escape from the loosening of the glenoid component. Moreover, optimal implantation is required to ensure the functional outcome without shortening of the arm. The purpose of this study is obtain CT scan evaluation of the glenoid bone stock in order to optimize glenoid component implantation and obtain a reference to determine optimal humeral component placement in case of humeral proximal fracture...
2016: SICOT-J
https://www.readbyqxmd.com/read/27703946/open-periprosthetic-patellar-fracture-after-total-knee-replacement
#17
Karim Masmoudi, Yamen Grissa, Sofien Benzarti, Hassen Cheikhrouhou, Zied Mensi
INTRODUCTION: Periprosthetic patellar fracture after total knee arthroplasty (TKA) is a rare complication. Their management can be very challenging with unpredictable results. Literature analysis showed few articles about this complication, but no publication has described the management of open patella fracture around total knee arthroplasty. CASE PRESENTATION: We report a unique case of an open patellar fracture above a total knee arthroplasty, sustained by a 56-year-old female patient...
April 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/27683552/hyperelastic-bone-a-highly-versatile-growth-factor-free-osteoregenerative-scalable-and-surgically-friendly-biomaterial
#18
Adam E Jakus, Alexandra L Rutz, Sumanas W Jordan, Abhishek Kannan, Sean M Mitchell, Chawon Yun, Katie D Koube, Sung C Yoo, Herbert E Whiteley, Claus-Peter Richter, Robert D Galiano, Wellington K Hsu, Stuart R Stock, Erin L Hsu, Ramille N Shah
Despite substantial attention given to the development of osteoregenerative biomaterials, severe deficiencies remain in current products. These limitations include an inability to adequately, rapidly, and reproducibly regenerate new bone; high costs and limited manufacturing capacity; and lack of surgical ease of handling. To address these shortcomings, we generated a new, synthetic osteoregenerative biomaterial, hyperelastic "bone" (HB). HB, which is composed of 90 weight % (wt %) hydroxyapatite and 10 wt % polycaprolactone or poly(lactic-co-glycolic acid), could be rapidly three-dimensionally (3D) printed (up to 275 cm(3)/hour) from room temperature extruded liquid inks...
September 28, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27672012/nonmodular-tapered-fluted-titanium-stems-osseointegrate-reliably-at-short-term-in-revision-thas
#19
Nemandra A Sandiford, Donald S Garbuz, Bassam A Masri, Clive P Duncan
BACKGROUND: The ideal femoral component for revision THA is undecided. Cylindrical nonmodular stems have been associated with stress shielding, whereas junctional fractures have been reported with tapered fluted modular titanium stems. We have used a tapered fluted nonmodular titanium femoral component (Wagner Self-locking [SL] femoral stem) to mitigate this risk. This component has been used extensively in Europe by its designer surgeons, but to our knowledge, it has not been studied in North America...
September 26, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27613811/distraction-first-metatarsophalangeal-arthrodesis-with-tricortical-calcaneus-autograft-technique-tips
#20
Jeffrey E McAlister, Christopher F Hyer, Trevor E Black
: First metatarsophalangeal joint arthritis can stem from a biomechanical imbalance as in hallux abducto valgus, metabolic arthritidies such as rheumatoid or gout, and even in posttraumatic cases. Advanced arthritis in the foot and ankle can often become debilitating. Surgical intervention is often necessary. Revision of failed first metatarsophalangeal joint arthroplasty is often in the setting of bony erosion and lysis, cystic changes, and loss of bone stock. In this article, we describe first metatarsophalangeal distraction arthrodesis technique using tricortical calcaneus autograft with the aim of simplifying donor site graft harvesting and decreasing donor site morbidity while attaining successful osseous union...
September 9, 2016: Foot & Ankle Specialist
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