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https://www.readbyqxmd.com/read/27921146/bone-loss-at-the-distal-femur-and-proximal-tibia-in-persons-with-spinal-cord-injury-imaging-approaches-risk-of-fracture-and-potential-treatment-options
#1
REVIEW
C M Cirnigliaro, M J Myslinski, M F La Fountaine, S C Kirshblum, G F Forrest, W A Bauman
Persons with spinal cord injury (SCI) undergo immediate unloading of the skeleton and, as a result, have severe bone loss below the level of lesion associated with increased risk of long-bone fractures. The pattern of bone loss in individuals with SCI differs from other forms of secondary osteoporosis because the skeleton above the level of lesion remains unaffected, while marked bone loss occurs in the regions of neurological impairment. Striking demineralization of the trabecular epiphyses of the distal femur (supracondylar) and proximal tibia occurs, with the knee region being highly vulnerable to fracture because many accidents occur while sitting in a wheelchair, making the knee region the first point of contact to any applied force...
December 5, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27919671/supracondylar-femoral-osteotomy-and-knee-joint-replacement-during-the-same-surgical-procedure-in-a-type-a-haemophiliac-patient-with-knee-flexion-deformity-and-ankylosis
#2
Jose Luis Osma Rueda, Alejandra Oliveros Vargas, Cristian David Sosa
BACKGROUND: Haemophilia A is the cause of diverse musculoskeletal disorders such as ankylosis, arthritis and associated angular deformity. There are few reported cases in patients with haemophilia A in which simultaneous supracondylar femoral osteotomy and knee joint replacement has been performed to treat knee angular deformity and ankylosis. Here we present the case of an 18year old male patient, with an evolution of two years, who was unable to walk due to the presence of an untreated supracondylar fracture in the left femur and ipsilateral haemophilic arthropathy which led him to develop an ankylosis in flexion close to 70°...
December 2, 2016: Knee
https://www.readbyqxmd.com/read/27919511/metaphyseal-locking-plate-as-an-external-fixator-for-open-tibial-fracture-clinical-outcomes-and-biomechanical-assessment
#3
Ching-Hou Ma, Chin-Hsien Wu, Jiun-Ru Jiang, Yuan-Kun Tu, Ting-Sheng Lin
OBJECTIVE: This study aimed to evaluate the outcome of using a metaphyseal locking plate as a definitive external fixator for treating open tibial fractures based on biomechanical experiments and analysis of clinical results. METHODS: A metaphyseal locking plate was used as an external fixator in 54 open tibial fractures in 52 patients. The mean follow-up was 38 months (range, 20-52 months). Moreover, static axial compression and torsional tests were performed to evaluate the strength of the fixation techniques...
November 29, 2016: Injury
https://www.readbyqxmd.com/read/27916579/distal-patellar-tendon-avulsion-in-association-with-high-energy-knee-trauma-a-case-series-and-review-of-the-literature
#4
Brian Capogna, Eric Strauss, Sanjit Konda, Alan Dayan, Michael Alaia
BACKGROUND: Patellar tendon rupture is rare in the general population. Typically, failure occurs proximally or at the mid-substance. Distal avulsion from the tibial tubercle in adults is rare and not well described in the orthopedic literature. METHODS: We present the largest series of patients with distal patellar tendon injury with associated multi-ligamentous disruption of the knee. A series of six patients with distal patellar tendon avulsion were identified at a single institution...
December 1, 2016: Knee
https://www.readbyqxmd.com/read/27905071/imaging-of-patellar-fractures
#5
REVIEW
Mohamed Jarraya, Luis E Diaz, William F Arndt, Frank W Roemer, Ali Guermazi
Patellar fractures account for approximately 1% of all skeletal fractures and may result from direct, indirect, or combined trauma. Because of the importance of patellar integrity for knee extension and the risk of associated injury to the extensor mechanism, accurate reporting and description of fracture type is paramount for appropriate management. This pictorial essay aims to review the normal anatomy of the patella, the mechanisms of injury and different types of patellar fractures, with a brief introduction to therapeutic management...
November 30, 2016: Insights Into Imaging
https://www.readbyqxmd.com/read/27900509/conversion-of-hip-fusion-to-total-hip-arthroplasty-clinical-radiological-outcomes-and-complications-in-40-hips
#6
Mustafa Celiktas, Ozkan Kose, Adil Turan, Ferhat Guler, Cagri Ors, Emre Togrul
OBJECTIVE: The purpose of this retrospective study is to report the clinical and radiological outcome of total hip arthroplasty in patients with previous hip arthrodesis. PATIENTS AND METHODS: We retrospectively reviewed 28 (40 hips) prospectively followed patients in whom ankylosed hips were converted to total hip arthroplasty (THA) between 2010 and 2014 in our institution. The average age at the time of the conversion operation was 40.8 ± 9.8 years (range 24-62)...
November 29, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27900474/bone-scan-usefulness-in-patients-with-painful-hip-or-knee-prosthesis-10-situations-that-can-cause-pain-other-than-loosening-and-infection
#7
REVIEW
Sofia Vaz, Teresa C Ferreira, Lucília Salgado, Frédéric Paycha
In recent years, with the higher median life expectancy, the number of hip and knee replacements has increased. Clinical examination and morphological studies are essential to evaluate patients with a painful arthroplasty. Nuclear medicine examinations also play an important role, their main usefulness being the exclusion of prosthesis complications. Nevertheless, conventional examinations, namely bone scan and white blood cell scintigraphy, can also identify complications, such as loosening and infection. This study describes the normal and pathologic patterns of a bone scan and exemplifies ten common situations that can cause pain in patients with hip or knee arthroplasty, other than loosening and infection, which can be disclosed on a bone scintigraphy...
November 30, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27900178/self-reported-worst-injuries-in-women-s-australian-football-identify-lower-limb-injuries-as-a-prevention-priority
#8
Lauren V Fortington, Alex Donaldson, Caroline F Finch
BACKGROUND: Increasing participation by women in Australian football (AF) has made understanding their specific injury prevention needs a priority. In other sports, men and women have different injury profiles. This study aims to provide the first overview of self-reported injuries in women's AF. METHODS: Nationwide survey of women aged 17+ years who played in an AF competition was conducted following the 2014 playing season. The players' self-reported worst injury from the 2014 season is presented according to injury type, body part injured, treatment sought and games/training missed...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27898357/catastrophic-metallosis-after-tumoral-knee-prosthesis-failure-a-case-report
#9
Luca La Verde, Domenico Fenga, Maria Silvia Spinelli, Francesco Rosario Campo, Michela Florio, Michele Attilio Rosa
INTRODUCTION: Metallosis is a condition characterized by an infiltration of periprosthetic soft tissues and bone by metallic debris resulting from wear or failure of joint arthroplasties. PRESENTATION OF CASE: Authors describe a case of a 45-year-old man treated for an osteosarcoma of the distal femur with a modular prosthesis when he was 18 years old, he developed massive metallosis with skin dyspigmentation after 17 years. His medical\surgical history was remarkable for a left tumoral knee prosthesis implanted 21 years ago...
November 18, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27896292/shoulder-arthroplasty-outcomes-in-patients-with-multiple-reported-drug-allergies-does-number-of-drug-allergies-have-an-effect-on-outcome
#10
Brett D Rosenthal, Michael J Knesek, Cynthia A Kahlenberg, Harry Mai, Matthew D Saltzman
BACKGROUND: The presence of multiple allergies has been correlated with worse outcomes for patients undergoing hip and knee arthroplasty, but the effect of allergies has not yet been elucidated with respect to shoulder arthroplasty. PURPOSE/HYPOTHESIS: The purpose of this study is to identify any discrepancies in shoulder arthroplasty outcomes with respect to reported drug allergies. We hypothesized that patients with multiple drug allergies would have inferior outcomes...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27895371/rotational-mal-alignment-after-reamed-intramedullary-nailing-for-tibial-shaft-fracture
#11
Sher Baz Khan, Yasir Mohib, Rizwan Haroon Rashid, Haroonur Rashid
Intra-medullary (IM) nailing is standard of care for unstable tibial shaft fractures. Malrotation is very common but it is under-recognised, inpart because of variation in normal anatomy and partly due to difficulty in accurately assessing rotation. This study was planned to evaluate the frequency of rotational mal-alignment after reamed tibia IMnailing. This cross-sectional study was conducted at Aga khan University Hospital, Karachi, and comprised patients with tibia shaft fractures managed with IMnailing from January to December 2014...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27894176/complications-and-short-term-outcomes-of-medial-opening-wedge-high-tibial-osteotomy-using-a-locking-plate-for-medial-osteoarthritis-of-the-knee
#12
Seung-Suk Seo, Ok-Gul Kim, Jin-Hyeok Seo, Do-Hoon Kim, Youn-Gu Kim, In-Seung Lee
Purpose: The purpose of this study was to investigate complications and radiologic and clinical outcomes of medial opening wedge high tibial osteotomy (MOWHTO) using a locking plate. Materials and Methods: This study reviewed 167 patients who were treated with MOWHTO using a locking plate from May 2012 to June 2014. Patients without complications were classified into group 1 and those with complications into group 2. Medical records, operative notes, and radiographs were retrospectively reviewed to identify complications...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894148/catastrophic-failure-of-regenerex-tibial-components-a-case-series
#13
Gavin Stormont, Daniel Stormont
The aim of this study was to analyze short-term metal failures in well-placed Signature-guided Regenerex (Zimmer Biomet, Warsaw, IN) tibial components in a limited patient series. A retrospective, consecutive, nonrandomized, unblinded study from a limited cohort of young active osteoarthritis patients was conducted. All cases received a Regenerex tibial component which we evaluated for metal failure. Patients met the then current indications from the Center for Medicare and Medicaid Services Guidelines for knee replacement...
November 28, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27890690/successful-outcome-with-minimally-invasive-plate-osteosynthesis-for-periprosthetic-tibial-fracture-after-total-knee-arthroplasty
#14
Hee-June Kim, Ki-Chul Park, Joon-Woo Kim, Chang-Wug Oh, Hee-Soo Kyung, Jong-Keon Oh, Kyeong-Hyeon Park, Seong-Dae Yoon
INTRODUCTION: The incidence of periprosthetic fracture after total knee arthroplasty (TKA) is increasing, and treatment is becoming more necessary. In periprosthetic tibial fracture, the stem of the tibial component largely occupies the medullary canal of the proximal tibia, which limits the selection of implants. The purpose of this study was to evaluate the effectiveness of the minimally invasive plate osteosynthesis (MIPO) technique with locking plates for periprosthetic tibial fractures after TKA...
November 24, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27890337/a-double-button-adjustable-loop-device-is-biomechanically-equivalent-to-tension-band-wire-in-the-fixation-of-transverse-patellar-fractures-a-cadaveric-study
#15
Fucai Han, Christopher Jon Pearce, David Q K Ng, Amit K Ramruttun, Desmond Y R Chong, Diarmuid Murphy, Chin Tat Lim, Bernard C S Lee
INTRODUCTION: Tension-band wire fixation of patellar fractures is associated with significant hardware-related complications and infection. Braided polyester suture fixation is an alternative option. However, these suture fixations have higher failure rates due to the difficulty in achieving rigid suture knot fixation. The Arthrex syndesmotic TightRope, which is a double-button adjustable loop fixation device utilizing a 4-point locking system using FibreWire, may not only offer stiff rigid fixation using a knotless system, but may also obviate the need for implant removal due to hardware related problems...
November 17, 2016: Injury
https://www.readbyqxmd.com/read/27889405/primary-total-knee-arthroplasty-for-elderly-complex-tibial-plateau-fractures
#16
Jie-Feng Huang, Jian-Jian Shen, Jun-Jie Chen, Pei-Jian Tong
OBJECTIVE: The aim of this study is to evaluate the clinical and radiologic results of primary Total Knee Arthroplasty (TKA) for elderly complex tibial plateau fractures. MATERIALS AND METHODS: Between November 2010 and February 2012, six cases of elderly complex tibial plateau fractures were treated with primary TKA using the standard medial parapatellar approach. All six patients were available at follow up with mean duration of 32.3 months (range 25-41 months)...
November 23, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27884644/evaluating-augmentation-with-calcium-phosphate-cement-chronos-inject-for-bone-defects-after-internal-fixation-of-proximal-tibial-fractures-a-prospective-multi-center-observational-study
#17
Ki Chul Park, Chang-Wug Oh, Young-Hoon Jo
INTRODUCTION: Managing subchondral bone defects in proximal tibia fractures after plateau reduction is an important consideration.ChronOSInjectis a recently developed calcium phosphate bone substitute that shows relatively fast osteointegration. HYPOTHESIS: UsingchronOS Inject during internal fixation of proximal tibial fractures provides a satisfactory treatment option that is both clinically and radiologically safe. MATERIALS AND METHODS: Patients enrolled in this study were treated with ChronOS Injectbone void filler, during internal fixation of proximal tibial fractures...
November 21, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27881118/electrolyte-disorders-and-aging-risk-factors-for-delirium-in-patients-undergoing-orthopedic-surgeries
#18
Li-Hong Wang, Dong-Juan Xu, Xian-Jiao Wei, Hao-Teng Chang, Guo-Hong Xu
BACKGROUND: At present, the exact mechanism of postoperative delirium has not been elucidated. The purpose of this study was to analyze the incidence of delirium in patients undergoing orthopedic surgeries and to explore possible related factors. METHODS: This is a retrospective study. We used 582 patients who had undergone orthopedic surgery between January 2011 and December 2014. The surgeries consisted of 155 cases of internal fixation for intertrochanteric fracture (IFIF), 128 cases of femoral head replacement (FHR), 169 cases of total hip arthroplasty (THA) and 130 cases of total knee arthroplasty (TKA)...
November 23, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27876490/medial-open-wedge-high-tibial-osteotomy-for-varus-malunited-tibial-plateau-fractures
#19
S R Sundararajan, H S Nagaraja, S Rajasekaran
PURPOSE: To analyze radiologic and functional outcomes of varus malunited tibial plateau fractures managed with medial open wedge high tibial osteotomy (MOHTO). METHODS: Eighteen patients with symptomatic varus malunited tibial plateau fractures with less than stage II arthritic changes managed from July 2009 to October 2013 were included. Patients with complex intra-articular step malunions and severe arthritic changes (stage III and IV) were excluded. Initially, diagnostic arthroscopy was performed followed by MOHTO stabilized with locking plate and tricortical autograft (n = 11, 61%) or a Puddu plate and allograft (n = 7, 39%)...
November 19, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27876283/importance-of-trabecular-anisotropy-in-finite-element-predictions-of-patellar-strain-after-total-knee-arthroplasty
#20
A Latypova, D P Pioletti, A Terrier
Patellar fracture and anterior knee pain remain major complications after Total Knee Arthroplasty (TKA). Patient-specific finite element (FE) models should help improve understanding of these complications through estimation of joint and bone mechanics. However, sensitivity of predictions on modeling techniques and approaches is not fully investigated. In particular, the importance of patellar bone anisotropy, usually omitted in FE models, on strain prediction is still unknown. The objective of this study was thus to estimate the influence of modeling patellar trabecular anisotropy on prediction of patellar strain in TKA models...
November 18, 2016: Medical Engineering & Physics
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