polyethylene wear in total hip arthroplasty for suboptimal acetabular cup positions and for different polyethylene types experimental evaluation of wear simulation by finite element analysis using clinical radiostereometric measurements
báo cáo hóa học:" Experimental and analytical validation of a modular acetabular prosthesis in total hip arthroplasty" pot
... acetabular shell, liner and femoFinite Element Model of the acetabular shell, liner and femoral head The liner locking mechanism was simulated constraining all degrees of freedom of the nodes located ... Shell/liner and Liner/femoral Contacting areas (Acetabular Shell/liner and Liner/femoral head) involved in the Finite Element Model Page of (page number not for citation purposes) Journal of Orthopaedic ... cup in walking and in hip simulators" Journal of Biomechanics 2002, 35:455-464 Kurtz SM, Ochoa JA, Hovey CB, White CV: " Simulation of initial frontside and backside wear rates in a modular acetabular...
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báo cáo hóa học:" Minimal stress shielding with a Mallory-Head titanium femoral stem with proximal porous coating in total hip arthroplasty" docx
... remodeling using this type of stem Materials and methods Patient Selection Clinical data and radiographs from 192 hips, representing all primary total hip arthroplasties performed between 1987 and ... radiograph Two of the primary total hip arthroplasty cases required irrigation and debridement for a wound hematoma in one case and acute infection in another One revision for aseptic loosening of the ... perioperative care for each patient included in the investigation BSE and NAC conducted the radiographic assessment and data analysis BSE and KRB participated in the design and coordination of the investigation,...
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báo cáo hóa học:" Relationship between cup position and obturator externus muscle in total hip arthroplasty" pdf
... symptomatic hip endoprostheses [15] Some of the most common findings were bursitides, tendinitis, and muscular and tendinous defects [15] Going forward, these findings must be included in the evaluation ... implantation depth of the acetabula is not absolutely variable A correct positioning of the acetabular cup is therefore one of the determining factors in avoiding a muscle impingement, and should always ... muscular impingement The reasons can be seen in the frequency of muscle-specific movement cycles and the formation of accompanying painful tendinous and bursa inflammations The position of the cup, ...
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báo cáo hóa học:" Stem diameter and rotational stability in revision total hip arthroplasty: a biomechanical analysis" ppt
... clinical success in this difficult setting There are limitations in this study These results are obtained using mechanical simulation in cadaveric femora and fail to account for the effects of ... was considered clinically relevant and was recorded for each specimen The slope of the linear portion of the torque-displacement curves was calculated using linear regression analysis The slope ... variety of experimental protocols and loading conditions and have analyzed a multitude of variables including cemented versus uncemented fixation, proximal and distal fixation, reaming technique and...
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báo cáo hóa học:" Th1 type lymphocyte reactivity to metals in patients with total hip arthroplasty" potx
... variability of basal levels of cytokine, which are amplified through nonstandard double normalization (proliferation and cytokine) analysis Discussion The detection of in increase in proliferation and ... (and individual normalized) IL-2 cytokine response of Group 2a and 2b hip arthroThe graphical results show the averaged (and individual normalized) IL-2 cytokine response of Group 2a and 2b hip ... subjects with hip arthroplasty were evaluated for lymphocyte reactivity to metals using lymphocyte transformation testing (proliferation assays), and IFN-gamma, IL-2, and IL-4 cytokine analysis The...
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báo cáo hóa học:" Botulinum toxin type A injections for the management of muscle tightness following total hip arthroplasty: a case series" pptx
... based on the individual's complaint of tightness and/ or spasms and subsequent clinical evaluation The clinical tests included assessment of muscle flexibility using the Thomas test for hip flexors ... diagnosis for the total hip arthroplasty was osteonecrosis in two hips, and osteoarthritis in all remaining cases Twelve hips were treated with metalon-metal total hip resurfacing arthroplasty, two hips ... improvement in arc of motion of 23 degrees (range, 10 to 45 degrees) Figure Botulinum toxin injection points Botulinum toxin injection points Illustration of the locations of the botulinum toxin injections...
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báo cáo hóa học:" The biomechanical analysis of three plating fixation systems for periprosthetic femoral fracture near the tip of a total hip arthroplasty" docx
... aid in the assessment of fracture healing in humans Proc Instn Mech Engrs 2001, 215(H4):405-414 33 Bergmann G, Graichen F, Rohlmann A: Hip joint loading during walking and running, measure in ... of intra- and postoperative fractures of the femur about the tip of the stem in total hip arthroplasty J Arthroplasty 1996, 11(6):709-717 22 Talbot M, Zdero R, Schemitsch EH: Cyclic loading of ... approved by the authors' institutional research and ethics board Insertion of Total Hip Arthroplasties and Creation of Femoral Osteotomies Each left femur was prepared for the cemented insertion of...
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báo cáo hóa học:" Comparison of a minimally invasive posterior approach and the standard posterior approach for total hip arthroplasty A prospective and comparative study" doc
... analog scale for pain during rest and during movement) were also recorded A blind assessment of post-operative recovery was made on a daily basis by recording the mobility of the joint and when the ... inter-ischial line, and the offset was determined by comparison of the distance from the center of the femoral head to the femoral shaft axis according to Dorr et al [11] Clinical examinations were blinded ... participated in the design of the study and performed the statistical analysis PS participated in the study and analyses of the study Page of JS participated in the study and analyses of the study...
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báo cáo hóa học:" Revision of failed hip resurfacing to total hip arthroplasty rapidly relieves pain and improves function in the early post operative period" pdf
... noted behind the acetabular component in cases but the cup was grossly loose in only one of these There was evidence of gross collapse of a segment of the femoral head (evidenced by softening of the ... the clinical outcomes of these prostheses, the main determinants of success in these patients are pain relief and return to their normal physical function One of the main proposed benefits of hip ... Sandiford et al.: Revision of failed hip resurfacing to total hip arthroplasty rapidly relieves pain and improves function in the early post operative period Journal of Orthopaedic Surgery and...
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báo cáo hóa học:" Revision of failed hip resurfacing to total hip arthroplasty rapidly relieves pain and improves function in the early post operative period" pptx
... noted behind the acetabular component in cases but the cup was grossly loose in only one of these There was evidence of gross collapse of a segment of the femoral head (evidenced by softening of the ... the clinical outcomes of these prostheses, the main determinants of success in these patients are pain relief and return to their normal physical function One of the main proposed benefits of hip ... Sandiford et al.: Revision of failed hip resurfacing to total hip arthroplasty rapidly relieves pain and improves function in the early post operative period Journal of Orthopaedic Surgery and...
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Báo cáo y học: "An impinging remnant meniscus causing early polyethylene failure in total knee arthroplasty: a case report" pot
... uptake in component and in the patella of the left knee Triphasic phase scintigraphy shows tibial the static phase atin medial side and increased and an increased perfusion early Triphasic bone scintigraphy ... scintigraphy shows an increased perfusion in the early phase and increased uptake in the static phase at the medial side of the femoral and tibial component and in the patella of the left knee of the medial ... the femur component and the polyethylene insert This was responsible for the catching sensation of the knee and the recurrent pain Because of the posteromedial impingement of the remnant meniscus,...
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Báo cáo hóa học: " Transcriptional responses in the adaptation to ischaemia-reperfusion injury: a study of the effect of ischaemic preconditioning in total knee arthroplasty patients" docx
... model for investigating the local and systemic effects of ischaemic preconditioning, as standard practice for total knee arthroplasty in our institution already involves the application of a tourniquet ... the initiation of surgery and at hour of ischaemia to coincide with the muscle sampling Blood was then obtained 30 min, hour and 24 hours following tourniquet release to investigate the effect of ... http://www.translational-medicine.com/content/8/1/46 Page of 11 Figure An overview of the study timeline and experimental approach phycoerythrin on the GeneChip® Fluidics Station 450, and scanned using the GeneChip®...
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báo cáo hóa học:" Rupture of the ilio-psoas tendon after a total hip arthroplasty: an unusual cause of radio-lucency of the lesser trochanter simulating a malignancy" pot
... iliopsoas impingement after total hip arthroplasty J Arthroplasty 1995, 10:546-9 Heaton K, Dorr LD: Surgical release of iliopsoas tendon for groin pain after total hip arthroplasty J Arthroplasty ... raise and resisted hip flexion, passive hyperextension and manifest in day to day life as ascending stairs, lifting the operative leg into the bed, lifting the leg in and out of the car (requiring ... patient for publication of this case report and the accompanying images A copy of the written consent is available for review by the Editor -in- Chief of this journal Acknowledgements Institution of...
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báo cáo hóa học:" Relationships between post operative pain management and short term functional mobility in total knee arthroplasty patients with a femoral nerve catheter: A preliminary study" doc
... sequentially according to the order and timing of when booking documentation was received at the clinic In Anaesthetist 1’s group a FNC was inserted post induction of anaesthesia, and prior to incision, ... guidance of a nerve stimulator technique A loading dose of 20 ml 0.75% ropivacaine and 20 ml 2% lignocaine was administered in the recovery room prior to commencement of continuous infusion of 0.2% ... ropivacaine Intravenous PCA for both groups was inserted in theatre and commenced either in recovery or on return to the ward depending on patient demand for analgesia Fetherston and Ward Journal of...
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báo cáo hóa học:" A technique to remove a well-fixed titanium-coated rm acetabular cup in revision hip arthroplasty" ppt
... of the inner part of the cup (Figure 2) Reamers of increasing sizes are used successively to wear the polyethylene layer (Figure 3) A minimal amount of polyethylene debris ( "polyethylene chips”) ... When the polyethylene is thin enough, the remaining cup is removed easily by hand tools, despite the osseointegration of the cup surface The acetabular bone stock is preserved and the risks of fractures ... The coating promotes osseointegration Stability of the cup is provided by two anchoring pegs on the weight bearing part on its outer surface The inclination of pegs and holes diverges by degrees...
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báo cáo hóa học:" Relationships between post operative pain management and short term functional mobility in total knee arthroplasty patients with a femoral nerve catheter: A preliminary study" pdf
... sequentially according to the order and timing of when booking documentation was received at the clinic In Anaesthetist 1’s group a FNC was inserted post induction of anaesthesia, and prior to incision, ... guidance of a nerve stimulator technique A loading dose of 20 ml 0.75% ropivacaine and 20 ml 2% lignocaine was administered in the recovery room prior to commencement of continuous infusion of 0.2% ... ropivacaine Intravenous PCA for both groups was inserted in theatre and commenced either in recovery or on return to the ward depending on patient demand for analgesia Fetherston and Ward Journal of...
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báo cáo hóa học:" A technique to remove a well-fixed titanium-coated rm acetabular cup in revision hip arthroplasty" potx
... of the inner part of the cup (Figure 2) Reamers of increasing sizes are used successively to wear the polyethylene layer (Figure 3) A minimal amount of polyethylene debris ( "polyethylene chips”) ... When the polyethylene is thin enough, the remaining cup is removed easily by hand tools, despite the osseointegration of the cup surface The acetabular bone stock is preserved and the risks of fractures ... The coating promotes osseointegration Stability of the cup is provided by two anchoring pegs on the weight bearing part on its outer surface The inclination of pegs and holes diverges by degrees...
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Báo cáo y học: "Treatment of stasis dermatitis using aminaphtone: An unusual case of persistent groin pain after total hip arthroplasty: a case report" pdf
... Green SE: Quality and consistency of clinical practice guidelines for diagnosis and management of osteoarthritis of the hip and knee: a descriptive overview of published guidelines Med J Aust 2008, ... radiological imaging should be recommended in all cases where unexplained clinical features or radiological findings are present Introduction Total hip arthroplasty (THA) is a well-established routine surgical ... left groin pain was referred to the orthopaedic clinic by her general practitioner to undergo THA She complained about progressive left groin pain for 12 months that was worst in the morning and...
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Báo cáo y học: "A rare case of arterial avulsion presenting with occult blood loss following total hip arthroplasty: a case report" docx
... the patient complained of intermittent pain in his left thigh that was associated with numbness and tingling in his toes His thigh was swollen, but the incision site was dry and there was no pulsatile ... exploration of his left groin An avulsion injury to a posterior perforating branch of the profunda femoral artery was identified and ligated A left psoas hematoma and a hematoma in the deep tissue of ... during operation, since the hip was flexed and forced into internal rotation and adduction to dislocate it prior to preparing the acetabulum and the femur The patient was particularly large and...
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2012THE SURGICAL APPROACH TO TOTAL HIP ARTHROPLASTY COMPLICATIONS AND UTILITY OF a MODIFIED DIRECT LATERAL APPROACH
... Poss, R.; Muller, M.E and Sledge, C.B.: Clinical and radiographic evaluation of total hip replacement A standard system of terminology for reporting results J Bone and Joint Surg., 72A:161-168, ... follow-up of 3.6 years These hips form the basis for the clinical portion of this review Twenty-five patients could be contacted by phone only Therefore 687 hips had both clinical and radiographic ... months, one year and yearly thereafter Clinical information had been recorded using the Harris Hip rating17 with transition to the AAOS /Hip Society rating form after the recommendation of Johnston...
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