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https://www.readbyqxmd.com/read/28988365/global-radiological-score-for-femoral-cementless-revision-stem
#1
François Canovas, Sophie Putman, Julien Girard, Olivier Roche, François Bonnomet, Pierre Le Béguec
PURPOSE: The purpose of this study was to evaluate the outcomes of total hip arthroplasty (THA) revision with cementless stems using a numeric global radiological score (GRxS) that summarizes two previously validated scores: secondary bone stock (SBS) and osseointegration-secondary stability (O-SS). METHOD: One hundred fifty cases of THA were evaluated at a mean follow-up of 6.5 ± 3.7 years. The GRxS combines the SBS, which evaluated cortical bone thickness, bone density and bone defects in each Gruen zone and the O-SS, which evaluated the location and extent of a single radiolucent line...
October 7, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28979589/ulna-autograft-for-wrist-arthrodesis-a-novel-approach-in-failed-wrist-arthoplasty
#2
Nastaran Sargazi, M Philpott, A Malik, M Waseem
Rheumatoid arthritis is a polyarthropathy affecting approximately 1% of the population worldwide. Wrist involvement is observed around 75% of patients, resulting in substantial disability and morbidity. A multidisciplinary approach to management of such patients is undertaken to prevent disease progression, many go on to develop debilitating disease requiring surgical intervention. Total wrist arthroplasty and arthrodesis are the main options available for those with end-stage disease, with arthroplasty preferred due to its ability to preserve a good degree of wrist function...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28970991/long-biceps-subpectoral-tenodesis-with-suspensory-button-and-bicortical-fixation
#3
Nuno Gomes, Manuel Ribeiro da Silva, Helder Pereira, Ricardo Aido, Ricardo Sampaio
Tenodesis of the long head of the biceps (LHB) tendon has long been recognized as a valid alternative to address pathologic conditions of this tendon. However, the location and type of fixation is still a matter of discussion, because common complications associated with this procedure include failure of the repair, persistent pain, reaction to the fixation device, cosmetic deformity, and fracture. The authors describe a method of subpectoral LHB tenodesis that aims to preserve bone stock and allows a strong, easy, and reproducible type of fixation with a minimal approach...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28955680/acetabular-cup-revision
#4
EDITORIAL
Young-Ho Kim
The use of acetabular cup revision arthroplasty is on the rise as demands for total hip arthroplasty, improved life expectancies, and the need for individual activity increase. For an acetabular cup revision to be successful, the cup should gain stable fixation within the remaining supportive bone of the acetabulum. Since the patient's remaining supportive acetabular bone stock plays an important role in the success of revision, accurate classification of the degree of acetabular bone defect is necessary. The Paprosky classification system is most commonly used when determining the location and degree of acetabular bone loss...
September 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28953728/three-dimensional-cone-beam-computed-tomography-volumetric-outcomes-of-rhbmp-2-demineralized-bone-matrix-versus-iliac-crest-bone-graft-for-alveolar-cleft-reconstruction
#5
Fan Liang, Stephen L-K Yen, Thomas Imahiyerobo, Luke Sanborn, Leia Yen, Daniel Yen, Sheila Nazarian, Breanna Jedrzejewski, Mark Urata, Jeffrey Hammoudeh
BACKGROUND: Recent studies indicate that recombinant human bone morphogenetic protein-2 (rhBMP-2) in a demineralized bone matrix scaffold is a comparable alternative to iliac bone autograft in the setting of secondary alveolar cleft repair. Postreconstruction occlusal radiographs demonstrate improved bone stock when rhBMP-2/demineralized bone matrix (DBM) scaffold is used but lack the capacity to evaluate bone growth in three dimensions. This study uses cone beam computed tomography to provide the first clinical evaluation of volumetric and density comparisons between these two treatment modalities...
October 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28951636/management-of-unstable-pertrochanteric-fractures-with-proximal-femoral-locking-compression-plates-and-affect-of-neck-shaft-angle-on-functional-outcomes
#6
Emrah Kovalak, Cenk Ermutlu, Tolga Atay, Özgür Başal
BACKGROUND: Management of unstable pertrochanteric fractures remains a challenge with various implant choices. Intramedullary devices are usually preferred for the management of the unstable fractures. When nailing is unsuitable for the configuration of the fracture extra medullary procedures are preferred. PFLCP is a contact limited implant that allows multiple angularly stable fixations with preserving more bone stock after implantation as an extramedullary implant. There are only a few reports in the literature about the osteosynthesis of unstable trochanteric fractures with proximal femoral locking compression plates and their results are conflicting...
July 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28941247/wear-testing-of-a-canine-hip-resurfacing-implant-using-highly-cross-linked-polyethylene
#7
Kevin J Warburton, John B Everingham, Jillian L Helms, Andrew J Kazanovicz, Katherine A Hollar, Jeff D Brourman, Steven M Fox, Trevor J Lujan
Hip resurfacing offers advantages for young active patients afflicted with hip osteoarthritis, and may also be a beneficial treatment for adult canines. Conventional hip resurfacing uses metal-on-metal bearings to preserve bone stock, but it may be feasible to use metal-on-polyethylene bearings to reduce metal wear debris, while still preserving bone. This study characterized the short-term wear behavior of a novel hip resurfacing implant for canines that uses a 1.5 mm thick liner of highly cross-linked polyethylene in the acetabular component...
September 23, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28933326/acetabular-fractures-in-an-advanced-age-current-knowledge-and-treatment-options
#8
S Märdian, D Rau, P Hinz, S Wittenberg, M Giesecke, P Schwabe
The demographic change in industrial countries leads to an increasing population that sustains an acetabular fracture in an advanced age. Some authors predicted elderly individuals to be the most rapidly growing subgroup of patients currently sustaining acetabular fractures. Gold standard of treatment of acetabular fractures remains the open reduction and internal fixation. Relevant factors impeding surgical treatment include the significantly decreased bone stock and the incapability of the patients to partially weight bear following surgery...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28918227/bone-remodeling-of-the-distal-femur-after-uncemented-total-knee-arthroplasty-a-2-year-prospective-dxa-study
#9
Mikkel Rathsach Andersen, Nikolaj S Winther, Thomas Lind, Henrik M Schrøder, Michael Mørk Petersen
Loss of bone stock as a response to the bone trauma, immobilization, and stress shielding related to joint replacement surgery increases the risk of fracture of the distal femur after total knee arthroplasty. Previous studies of uncemented femoral components have reported very high levels of bone loss in the distal femur. This study investigates the adaptive bone remodeling of the distal femur after uncemented total knee arthroplasty. We performed a 2-year follow-up of 53 patients (mean age 61.5 [38-70] years, F/M = 27/26, body mass index 29...
September 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28915961/short-stem-total-hip-arthroplasty-potential-explanations-for-persistent-post-surgical-thigh-pain
#10
Isabel A C Baert, Enrique Lluch, Francis Van Glabbeek, Rudy Nuyts, Salim Rufai, Joanna Tuynman, Filip Struyf, Mira Meeus
Short stem uncemented femoral implants were developed with the aim of preserving proximal bone stock for future revisions, improving biomechanical reconstruction, aiding insertion through smaller incisions and potentially decreasing or limiting the incidence of thigh pain. Despite all the advantages of short stem designs, it remains unclear whether they are able to limit post-surgical thigh pain. In patients with short stem hip arthroplasty and persistent thigh pain, it is of the utmost importance to understand the potential etiologies of this chronic pain for selecting the appropriate treatment strategy...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28899823/a-predictive-radiological-analysis-of-short-stems-versus-both-shortened-and-long-stems-in-primary-hip-replacement-a-case-control-study-of-100-cases-of-metha-versus-abg-ii-and-omnifit-ha-at-2-8years-follow-up
#11
J-A Epinette, M Brax, Y Chammaï
INTRODUCTION: Short hip stems, intended to conserve bone stock and ensure a more physiological distribution of stress in the femur under loading, are meeting with renewed interest. Radiologic semiology is not known exactly, particularly in relation to conventional implants; we therefore conducted a case-control study of 3 types of implant differing only in stem length: short, shortened or long. The aim was: (1) to compare radiographic aspects, (2) to attempt to systematize medium-term radiologic status for the 3 types, and (3) to assess the impact of radiographic aspect on loosening and revision rates...
September 9, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28895428/decreased-migration-with-locally-administered-bisphosphonate-in-cemented-cup-revisions-using-impaction-bone-grafting-technique
#12
Vasileios Zampelis, Ola Belfrage, Magnus Tägil, Martin Sundberg, Gunnar Flivik
Background and purpose - Impaction bone grafting (IBG) in revision hip surgery is an established method in restoring bone stock deficiencies. We hypothesized that local treatment of the morsellized allograft with a bisphosphonate in cemented revision would, in addition to increased bone density, also reduce the early migration of the cup as measured by radiostereometry (RSA). Patients and methods - 20 patients with aseptic cup loosening underwent revision using the IBG technique. The patients were randomized to either clodronate (10 patients) or saline (10 patients, control group) as local adjunct to the morsellized bone...
September 12, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28865584/bone-block-arthrodesis-procedure-in-failures-of-first-metatarsophalangeal-joint-replacement
#13
Federico Giuseppe Usuelli, Jacopo Tamini, Camilla Maccario, Miriam Grassi, Eric W Tan
BACKGROUND: The treatment for the failure of a first metatarsophalangeal joint (MTP1) prosthesis can be complex. There is no consensus regarding the ideal treatment. One of the main issues is the available bone stock after prosthesis removal. The aim of the study was to report the clinical and radiographic results for MTP1 arthrodesis with autologous calcaneus bone graft (bone-block fusion) as a revision procedure of a previous MTP1 implant failure. METHODS: This study included 12 patients diagnosed with failure of a MTP1 prosthesis...
September 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28861191/porous-femoral-fixation-in-total-hip-arthroplasty-with-short-anatomical-stem-radiographic-evaluation
#14
Suresh Patil, Carrilero Luis, Henry Finn
BACKGROUND: Hip prostheses with short anatomical stems were designed for metaphyseal fixation and to spare bone stock. We present a study of a short anatomical femoral stem used in all age groups of patients with Dorr A and B type of femora. METHODS: We reviewed radiographs of 85 hips in 74 patients who had a cementless total hip arthroplasty with a short anatomical 80 mm femoral stem designed to achieve pure metaphyseal fixation. A ream-only technique was used for femoral canal preparation in all patients...
September 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28860401/venous-thromboembolism-in-adult-elective-spinal-surgery-a-tertiary-centre-review-of-2181-patients
#15
H M T Fawi, K Saba, A Cunningham, S Masud, M Lewis, M Hossain, I Chopra, S Ahuja
AIMS: To evaluate the incidence of primary venous thromboembolism (VTE), epidural haematoma, surgical site infection (SSI), and 90-day mortality after elective spinal surgery, and the effect of two protocols for prophylaxis. PATIENTS AND METHODS: A total of 2181 adults underwent 2366 elective spinal procedures between January 2007 and January 2012. All patients wore anti-embolic stockings, mobilised early and were kept adequately hydrated. In addition, 29% (689) of these were given low molecular weight heparin (LMWH) while in hospital...
September 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28844816/guadecitabine-sgi-110-in-treatment-naive-patients-with-acute-myeloid-leukaemia-phase-2-results-from-a-multicentre-randomised-phase-1-2-trial
#16
RANDOMIZED CONTROLLED TRIAL
Hagop M Kantarjian, Gail J Roboz, Patricia L Kropf, Karen W L Yee, Casey L O'Connell, Raoul Tibes, Katherine J Walsh, Nikolai A Podoltsev, Elizabeth A Griffiths, Elias Jabbour, Guillermo Garcia-Manero, David Rizzieri, Wendy Stock, Michael R Savona, Todd L Rosenblat, Jesus G Berdeja, Farhad Ravandi, Edwin P Rock, Yong Hao, Mohammad Azab, Jean-Pierre J Issa
BACKGROUND: The hypomethylating drugs azacitidine and decitabine have shown efficacy in myelodysplastic syndromes and acute myeloid leukaemia, but complete tumour responses are infrequent and of short duration, possibly because of the short half-lives and suboptimal bone marrow exposure of the drugs. Guadecitabine, a next-generation hypomethylating drug, has a longer half-life and exposure than its active metabolite decitabine. A phase 1 study established 60 mg/m(2) guadecitabine for 5 days as an effective treatment schedule...
October 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28843402/temporomandibular-joint-reconstruction-with-stock-and-custom-made-devices-indications-and-results-of-a-14-year-experience
#17
Giovanni Gerbino, Emanuele Zavattero, Gianfranco Bosco, Sid Berrone, Guglielmo Ramieri
PURPOSE: Temporomandibular joint (TMJ) reconstruction with alloplastic implants is a reliable, safe and effective treatment option for selected debilitating pathologies of the TMJ. This study retrospectively analyzes our 14-year experience in total alloplastic reconstruction of the TMJ using stock and custom Biomet prostheses. Indications, results and rationale for the choice of stock and custom-made devices are discussed. MATERIAL AND METHODS: Patients were enrolled in the study who underwent single-stage alloplastic total joint replacement from January 2000 to October 2014...
October 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28837455/revision-total-knee-arthroplasty-for-the-management-of-periprosthetic-fractures
#18
Paul R T Kuzyk, Evan Watts, David Backstein
Periprosthetic fractures after total knee arthroplasty (TKA) can present reconstructive challenges. Not only is the procedure technically complex, but patients with these fractures may have multiple comorbidities, making them prone to postoperative complications. Early mobilization is particularly beneficial in patients with multiple comorbidities. Certain patient factors and fracture types may make revision TKA the ideal management option. Periprosthetic fractures around the knee implant occur most frequently in the distal femur, followed by the tibia and the patella...
September 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28835585/the-history-and-future-of-unlinked-total-elbow-arthroplasty
#19
Takuji Iwamoto, Hiroyasu Ikegami, Taku Suzuki, Satoshi Oki, Noboru Matsumura, Masaya Nakamura, Morio Matsumoto, Kazuki Sato
Unlinked total elbow arthroplasty (TEA), which has no mechanical connection between the humeral and ulnar components, has theoretical advantages based on its near-normal elbow kinematics and the preservation of bone stock. Unlinked TEA is appropriate only for patients who have limited bone loss or limited deformity and good ligamentous function. This is because postoperative instability has been a major complication of unlinked prostheses. The concept and goal of unlinked TEA is to share the loading stress on the bone implant interface with the surrounding tissues...
August 24, 2017: Keio Journal of Medicine
https://www.readbyqxmd.com/read/28831343/biomechanical-properties-of-first-dorsal-extensor-compartment-regarding-adequacy-as-a-bone-ligament-bone-graft
#20
Michael G Jakubietz, Rafael G Jakubietz, Rainer H Meffert, Karsten Schmidt, Robert K Zahn
Bone-ligament-bone grafts for reconstruction of the scapholunate ligament are a valuable tool to prevent disease progression to carpal collapse. Locally available grafts do not require an additional donor site. The first extensor compartment was evaluated biomechanically regarding its possible use as an autograft. METHODS: Twelve native fresh-frozen, human cadaver specimens were tested by applying axial tension in a Zwick Roell machine. Load to failure, transplant elongation, and bony avulsion were recorded...
July 2017: Plastic and Reconstructive Surgery. Global Open
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