keyword
MENU ▼
Read by QxMD icon Read
search

Fresh bone allograft

keyword
https://www.readbyqxmd.com/read/29143065/-complex-joint-reconstruction-and-joint-transplantation-with-the-flocsat-concept-planning-and-surgical-implementation
#1
REVIEW
C Krettek, J-D Clausen, C Neunaber
Cartilage defects in adult patients are so far incurable. Fresh osteochondral allograft (OCA) transplantation is based on the insertion of mature, living, mechanically sound hyaline cartilage into an osteochondral defect where it undergoes osseointegration. Intact hyaline cartilage of OCA does not cause immune reactions in the recipient. Many reports show that small OCA have good osseointegration and show good long-term results. These observations have been incorporated into the development of the fresh large (> 10 cm(2)) osteochondral shell allograft transplantation (FLOCSAT) concept, which is based on the following principles: 1) the thickness of the osseous layer should be kept as thin as possible (target < 6-8 mm) so that the transplant remains stable and fixable...
November 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29138892/-partial-and-complete-joint-transplantation-with-fresh-osteochondral-allografts-the-flocsat-concept
#2
REVIEW
C Krettek, J-D Clausen, N Bruns, C Neunaber
Cartilage defects in adult patients do not heal well. Fresh osteochondral allograft (OCA) transplantation is based on mature, living, mechanically sound hyaline cartilage attached to a bone interface, which is brought into an osteochondral defect, where it becomes osseointegrated. According to current knowledge, intact hyaline cartilage tissue is immune privileged and does not, in contrast to bone, meniscus or ligaments, cause an immune reaction. The technique has the unique advantage of transplanting viable, mature and mechanically stable hyaline cartilage into the affected area...
November 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28970982/concomitant-reverse-hill-sachs-lesion-and-posterior-humeral-avulsion-of-the-glenohumeral-ligament-treatment-with-fresh-talus-osteochondral-allograft-and-arthroscopic-posterior-humeral-avulsion-of-the-glenohumeral-ligament-and-labrum-repair
#3
Justin J Mitchell, Alexander R Vap, George Sanchez, Daniel J Liechti, Jorge Chahla, Gilbert Moatshe, Márcio B Ferrari, Matthew T Provencher
Chronic posterior glenohumeral joint instability can be a challenging clinical entity for patients and surgeons alike. In the setting of a posterior dislocation, a large anterior humeral impaction injury (reverse Hill-Sachs [HS]) may occur, leading to engagement of the humerus with the posterior glenoid bone, especially during internal rotation of the joint. A reverse HS is especially debilitating because of the significant portion of affected humeral head cartilage, and is made worse in the setting of ligamentous disruption such as a posterior humeral avulsion of the glenohumeral ligament (HAGL) lesions...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28956078/-attitude-towards-organ-and-tissue-donation-in-europe-prerequisite-for-osteochondral-allograft-treatment
#4
REVIEW
S Schmidt, A Schulte, S Schwarz, N Hofmann, S Tietz, M Boergel, S U Sixt
BACKGROUND: The biggest obstacle to overcome for routine treatment of various pathologies with fresh osteochondral allograft is the availability of tissue for transplantation. Large fresh osteochondral allografts are usually harvested from organ donors, but in contrast to organs, tissues can be procured after cardiac arrest. OBJECTIVE: Medical staff as well the general public are much less aware of the possibilities and requirements of tissue donation compared to organ donation...
November 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28944517/biomechanical-comparison-of-xenogeneic-bone-material-treated-with-different-methods
#5
Wei Feng, Dongsong Li, Junting Zang, Li Fu
Bone xenografting is considered one of the most effective ways to address the shortage of bone autografts and allografts. Various methods have been employed to minimize the immune rejection issues associated with bone xenografts. However, the side effects of such methods on bone biomechanical properties remain unclear. As such, the objective of this study was to compare the influence of different treatments on the biomechanical properties of porcine bones. Fresh pig ribs were cut into 1.5 × 0.5 × 0.4 cm specimens, which were randomly divided into four groups and subjected to different modification regimes: group A by degreasing and partial deproteinization, group B by cryopreservation, group C by cryopreservation and enzyme digestion, and group D was a control group using fresh bone...
September 24, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28937784/lacertus-fibrosus-versus-achilles-allograft-reconstruction-for-distal-biceps-tears-a-biomechanical-study
#6
Anand M Murthi, Miguel A Ramirez, Brent G Parks, Shannon R Carpenter
BACKGROUND: The bicipital aponeurosis, or lacertus fibrosus, can potentially be used as a reconstruction graft in chronic distal biceps tendon tears. PURPOSE: To evaluate construct stiffness, load to failure, and failure mechanism with lacertus fibrosus versus Achilles allograft for distal biceps tendon reconstruction. STUDY DESIGN: Controlled laboratory study. METHODS: Ten fresh-frozen matched cadaveric pairs of elbows were used...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28854288/use-of-bone-morphogenetic-protein-2-in-molar-extraction-sockets-for-immediate-implant-placement-a-prospective-case-series
#7
Karl J Zeren
This prospective case series enrolled consecutively qualifying patients that required immediate dental implant placement in large, uncontained, fresh molar extraction sites using recombinant human bone morphogentic protein-2/absorbable collagen sponge (rhBMP-2/ACS) combined with mineralized bone allograft. A total of 11 patients with 15 extraction sites missing bony walls were enrolled for treatment in this prospective case series. The clinical and radiographic effectiveness of rhBMP-2/ACS combined with mineralized bone allograft supported healing of immediately placed implants...
August 30, 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28841652/fresh-frozen-cortical-strut-allograft-in-two-level-anterior-cervical-corpectomy-and-fusion
#8
Kuang-Ting Yeh, Ru-Ping Lee, Ing-Ho Chen, Tzai-Chiu Yu, Kuan-Lin Liu, Cheng-Huan Peng, Jen-Hung Wang, Pau-Yuan Chang, Wen-Tien Wu
Anterior cervical corpectomy and fusion (ACCF) is one of the main surgical strategies for the management of multilevel cervical spondylotic myelopathy (MCSM). High complication rates of graft bone fracture, resorption, displacement, and fusion collapse or pseudarthrosis have been previously reported. The strategies to prevent the aforementioned complications include using fresh frozen cortical strut allograft (FFCSA) to keep most of the original bone quality and using additional anterior plate fixation to improve the fusion stability and union rate...
2017: PloS One
https://www.readbyqxmd.com/read/28801687/human-mesenchymal-stromal-cell-sheet-enhances-allograft-repair-in-a-mouse-model
#9
Xifu Shang, Bing Shu, Yongjun Wang, Zhengliang Luo, Guangxi Wang, Shane Barton, Massimo Max Morandi, Christopher Kevil, Yufeng Dong
To determine whether cell sheets generated with long-term passaged (P10) aging human mesenchymal stromal cells (MSCs) could be used for bone tissue regeneration as tissue engineered periosteum in a femoral allograft mouse model similar to fresh passaged (P3) young MSCs. At 3 weeks after transplantation of MSC sheets, results showed more bony callus formed between allograft and host bone ends in both young P3 MSC and aged P10 MSC sheet-wrapped groups when compared to allograft alone. At 6 weeks, while both MSC sheet-wrapped allografts showed more bony callus formation when compared to allograft alone groups, the bony callus size in aged P10 MSC sheet groups was significantly less than young P3 MSC sheet groups...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28737949/effects-of-autogenous-bone-marrow-aspirate-concentrate-on-radiographic-integration-of-femoral-condylar-osteochondral-allografts
#10
Lasun O Oladeji, James P Stannard, Cristi R Cook, Mauricio Kfuri, Brett D Crist, Matthew J Smith, James L Cook
BACKGROUND: Transplantation of fresh osteochondral allografts (OCAs) is an attractive treatment option for symptomatic articular cartilage lesions in young, healthy patients. Because the lack of OCA bone integration can be a cause of treatment failure, methods for speeding and enhancing OCA bone integration to mitigate this potential complication are highly desirable. PURPOSE: To determine if autogenous bone marrow aspirate concentrate (BMC) treatment of large femoral condylar OCAs would be associated with superior radiographic OCA bone integration compared with nontreated allografts during the critical first 6 months after surgery...
October 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28718671/freeze-dried-and-irradiated-allograft-bone-combined-with-fresh-autologous-coagula-promotes-angiogenesis-in-an-ectopic-bone-allograft-implantation-model
#11
Haibo Lu, Haoye Meng, Shibi Lu, Ling Qin, Bin Zhao, Aiyuan Wang, Jiang Peng, Wenjing Xu, Quanyi Guo, Jian Zhang
BACKGROUND: Freeze-dried and irradiated allograft bone (FIAB) is more easily impacted than fresh-frozen allograft bone (FAB) but has weaker incorporation efficiency. We combined FIAB with fresh autologous coagula to enhance donor-host incorporation after impaction during hip revision. METHODS: Thirty adult male Sprague-Dawley rats were sacrificed for bone allograft harvesting, and nine male rats were subjected to ectopic bone allograft implantation. For each rat, the container on the left (study) side was filled with freeze-dried allograft bone powder and fresh autologous blood coagula, whereas the right (control) side was filled with freeze-dried allograft bone powder and physiological saline...
July 18, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28706848/bipolar-bone-loss-of-the-shoulder-joint-due-to-recurrent-instability-use-of-fresh-osteochondral-distal-tibia-and-humeral-head-allografts
#12
Daniel B Haber, Anthony Sanchez, George Sanchez, Marcio B Ferrari, Sami Ferdousian, Matthew T Provencher
With increasing shoulder instability events, the likelihood of a bony lesion of the glenoid and/or humeral head rises. Although bone loss of either the glenoid or humeral head may result in recurrent instability, bipolar lesions have been shown, in particular, to result in a negative and additive effect on glenohumeral stability. In the case of a bipolar lesion comprising severe glenoid bone loss and an engaging, "off-track" Hill-Sachs lesion, the bony foundation of the glenohumeral joint is compromised and bony augmentation is necessary...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28686464/the-influence-of-liquids-on-the-mechanical-properties-of-allografts-in-bone-impaction-grafting
#13
David Putzer, Christoph Gert Ammann, Débora Coraça-Huber, Ricarda Lechner, Werner Schmölz, Michael Nogler
Allografts are used to compensate for bone defects resulting from revision surgery, tumor surgery, and reconstructive bone surgery. Although it is well known that the reduction of fat content of allografts increases mechanical properties, the content of liquids with a known grain size distribution has not been assessed so far. The aim of the study was to compare the mechanical properties of dried allografts (DA) with allografts mixed with a saline solution (ASS) and with allografts mixed with blood (AB) having a similar grain size distribution...
July 7, 2017: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/28614276/wrist-arthrodesis-with-femoral-head-structural-allograft-after-failed-total-wrist-arthroplasty
#14
Louis C Grandizio, Steven Maschke
The failed total wrist arthroplasty represents a challenging reconstructive problem for the upper extremity surgeon. Bone loss, poor bone quality, and soft tissue defects all present technical challenges when considering revision procedures. Our purpose is to describe a technique for wrist arthrodesis after failed total wrist arthroplasty utilizing fresh-frozen femoral head allograft and dorsal plate fixation. We describe a simple method of allograft preparation for this procedure, as graft preparation and implantation can be time consuming and technically challenging...
September 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28605001/determination-of-structural-femoral-head-allograft-viability-and-integrity-with-a-novel-diagnostic-tool-spect-ct-a-preliminary-study
#15
Kasım Kilicarslan, Nadir Yalcin, Vedat Bicici, Elif Ozdemir, Izzet Bingol, Seyda Turkolmez
OBJECTIVE: To evaluate the viability and integrity of fresh frozen bulk femoral head allografts obtained from the institutional bone bank that were used to reconstruct severe acetabular defects and to validate the SPECT/CT method which gives both anatomical and functional data for this purpose. METHODS: We retrospectively reviewed 9 patients (6 female, 3 male; mean age 63.6 years). Preoperative and postoperative leg lengths, existence of the Trendelenburg sign, range of motion of the hip, visual analogue score (VAS), Harris Hip Score (HHS) and any complication were assesed at each follow-up...
June 2, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28580254/use-of-a-cutting-instrument-for-fresh-osteochondral-distal-tibia-allograft-preparation-treatment-of-glenoid-bone-loss
#16
Marcio B Ferrari, Anthony Sanchez, George Sanchez, Ramesses Akamefula, Bradley M Kruckeberg, Matthew T Provencher
Glenoid bone loss presents a major risk for glenohumeral instability that has been well recognized as a cause of instability recurrence after attempted Bankart repair, and although most surgeons consider the Latarjet procedure as the gold standard, failures can occur with this technique as well and the search for alternative grafts to address glenoid bone loss is a major topic of ongoing research in the field. Of these techniques, the distal tibia allograft (DTA) has been shown to provide an excellent option to restore glenoid biomechanics, due to its congruency with the humeral head, dense bony quality, and the facility of harvest...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28551055/fresh-osteochondral-allografts-procurement-and-tissue-donation-in-europe
#17
S Schmidt, A Schulte, S Schwarz, N Hofmann, S Tietz, M Boergel, S U Sixt
Fresh osteochondral allografts are a well-established treatment for large, full-thickness cartilage defects. The clinical outcome for carefully selected patients is very favorable, especially for the young and active and graft survival up to 25 years has been described in the literature. Furthermore, a high patient satisfaction rate has been reported, but the biggest obstacle to overcome is the availability of tissue for transplantation. Large fresh bone allografts for cartilage damage repair only can be harvested from organ donors following organ removal or cadaveric donors, preferably in the setting of an operation room to minimize possible contamination of the tissue...
July 2017: Injury
https://www.readbyqxmd.com/read/28507875/digital-joint-reconstruction-with-osteotendinous-joint-allograft-experimental-study-in-rats
#18
Martin Iglesias, Ángel Uriel Cruz-Reyes, Patricia Butrón, Ricardo Hernández-Agallo, Víctor Antonio Torres de la Barrera, Claudio Reyes-Montero, Marta Durand-Carbajal, Gonzalo Torres-Villalobos
BACKGROUND: Fresh or frozen nonvascularized osteotendinous joint allografts (OTJA) have not been used previously, clinically or experimentally, for metacarpophalangeal joint reconstruction. Therefore, we evaluated the viability of OTJA for metatarsophalangeal joint (MTJ) reconstruction in rats. METHODS: In the experimental group of 12 Lewis rats, we reconstructed the MTJ of the third digit of the hindlimb with a fresh, nonvascularized OTJA obtained from the same digit from 12 donor rats...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28500904/endometrial-adenocarcinoma-recurrence-presenting-with-tibial-metastasis-report-of-a-case
#19
Mehmet Salih Söylemez, Bahattin Kemah, Umut Perçem Orhan Söylemez, Bülent Kılıç, Korhan Ozkan
INTRODUCTION: Metastatic bone disease at extremities is mostly associated with lung, liver, prostat, thyriod or breast malignancies. There for surgeons generally tends to seek for a primary tumor originating from these organs. Herein a case of endometrial adenocarcinoma recurrence that presented with symptoms of tibial pain is described. PRESENTATION OF CASE: 59 year-old woman was admitted to our orthopaedic oncology unit with pain, swelling and tenderness at right cruris for two weeks without any trauma history...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28500505/rehydration-improves-the-ductility-of-dry-bone-allografts
#20
Roger Erivan, Guillaume Villatte, Régis Cueff, Stéphane Boisgard, Stéphane Descamps
Processing of bone allografts improves infectious safety and allows storing bone substitutes at room temperature. The aim of this study was to compare mechanical properties of the processed Osteopure™ bone with fresh frozen bone. All the samples were pieces from femoral heads retrieved during hip arthroplasty operations. The processing includes chemical decellularization, drying and irradiation with 25 kGy. Three types of samples were tested: 1. fresh frozen thawed wet, 2. dry non-rehydrated graft 3. dry rehydrated graft...
May 12, 2017: Cell and Tissue Banking
keyword
keyword
59058
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"