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https://www.readbyqxmd.com/read/28050573/relationship-between-the-middle-genicular-artery-and-the-posterior-structures-of-the-knee-a-cadaveric-study
#1
Rogério Teixeira de Carvalho, Leonardo Addêo Ramos, João Victor Novaretti, Leandro Masini Ribeiro, Paulo Roberto de Queiroz Szeles, Sheila Jean McNeill Ingham, Rene Jorge Abdalla
BACKGROUND: The middle genicular artery (MGA) is responsible for the blood supply to the cruciate ligaments and synovial tissue. Traumatic sports injuries and surgical procedures (open and arthroscopic) can cause vascular damage. Little attention has been devoted to establish safe parameters for the MGA. PURPOSE: To investigate the anatomy of the MGA and its relation to the posterior structures of the knees, mainly the posterior capsule and femoral condyles, and to establish safe parameters to avoid harming the MGA...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28026918/upper-and-lower-extremity-reconstructive-applications-utilizing-free-flaps-from-the-medial-genicular-arterial-system-a-systematic-review
#2
Nikolas H Kazmers, Stephanie Thibaudeau, Zvi Steinberger, L Scott Levin
BACKGROUND: Free flaps derived from the medial genicular artery (MGA) system, including the medial femoral condyle (MFC) and medial femoral trochlear (MFT) flaps, are potential reconstructive options to address upper and lower extremity bony pathology. Our primary aim was to comprehensively search the literature to describe the spectrum of pathology treated with these flaps, and to assess patient outcomes to improve our understanding of expected union and complication rates. METHODS: Following PRISMA guidelines, a systematic review using Pubmed and Embase databases with citation cross-referencing was performed to identify all original clinical articles characterizing MGA flap treatment of upper and lower extremity pathology...
December 27, 2016: Microsurgery
https://www.readbyqxmd.com/read/28006796/a-new-generic-name-i-semigothograptus-i-for-i-gothograptus-i-i-meganassa-i-rickards%C3%A2-amp-palmer-2002-from-the-silurian-post-i-lundgreni-i-biozone-recovery-phase-and-comparative-morphology-of-retiolitids-from-the-lowermost-upper-homerian-upper-wenlock
#3
Anna Kozłowska
Gothograptus? meganassa Rickards & Palmer, 2002 is assigned to a new genus Semigothograptus. New, well preserved material from the dubius/nassa Biozone (upper Homerian, Silurian) of the Bartoszyce IG-1 drill core Poland is described. This provides a new phylogenetic perspective on the evolution of post-lundgreni Event retiolitines. Semigothograptus meganassa is considered to be a descendant of Gothograptus nassa, although one of the most significant differences between these forms is the position of the nema, and narrow finite tubarium ending in an appendix in G...
December 21, 2016: Zootaxa
https://www.readbyqxmd.com/read/27990614/anatomical-variation-in-the-anterolateral-ligament-of-the-knee-and-a-new-dissection-technique-for-embalmed-cadaveric-specimens
#4
Matthew Parker, Heather F Smith
Claes et al. recently documented and described the anterolateral ligament (ALL) of the knee, demonstrating its existence in 97% of their samples. Here, we further examined the anatomy of this ligament, documented its morphological variation, and assessed the feasibility of its dissection in preserved cadaveric specimens. To achieve this, we dissected 53 preserved cadaveric knees and documented their morphological variation in the anterolateral ligament. The originally described dissection technique for identifying and following the ALL requires flexion of the knee, a state which is often not possible in stiff, preserved cadavers...
December 18, 2016: Anatomical Science International
https://www.readbyqxmd.com/read/27922951/anatomic-and-ultrasonographic-evaluation-of-the-knee-sensory-innervation-a-cadaveric-study-to-determine-anatomic-targets-in-the-treatment-of-chronic-knee-pain
#5
Jorge M Orduña Valls, Ricardo Vallejo, Pablo López Pais, Eliezer Soto, Daniel Torres Rodríguez, David L Cedeño, Carlos Tornero Tornero, Maximino Quintáns Rodríguez, Aurora Baluja González, Julián Álvarez Escudero
BACKGROUND AND OBJECTIVES: Osteoarthrosis is a main cause of knee pain in the elderly. Pain associated with this condition is often refractory to conservative treatment. Total knee replacement may be the best option for severe pathologies; however, the occurrence of a chronic pain state after knee replacement has been well documented in the literature. The previous descriptions of the genicular nerves have been considered somewhat inaccurate. This innervation is complex and exhibits significant interindividual variability...
January 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27904225/the-inferior-medial-genicular-artery-and-its-vascularization-of-the-pes-anserinus-superficialis-a-cadaveric-study
#6
Lena Hirtler, Manuel Ederer, Mike Faber, Patrick Weninger
BACKGROUND: A common method for reconstruction of the anterior cruciate ligament (ACL) is it's replacement by a free avascular graft, using the gracilis and/or semitendinosus tendons. These grafts pass a vulnerable phase in the ligamentization-process during the 1(st) year after reconstruction. The aims of this study were first to evaluate the vascularization of the pes anserinus superficialis (PAS) by the inferior medial genicular artery (IMGA) and second to develop a pedunculated surgical technique for ACL reconstruction, to preserve a maximal amount of natural vascularization of the tendons inserting at the PAS...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27875368/analgesic-effect-and-functional-improvement-caused-by-radiofrequency-treatment-of-genicular-nerves-in-patients-with-advanced-osteoarthritis-of-the-knee-until-1-year-following-treatment
#7
María M Santana Pineda, Luc E Vanlinthout, Ana Moreno Martín, Jan van Zundert, Fernando Rodriguez Huertas, José P Novalbos Ruiz
BACKGROUND AND OBJECTIVES: Radiofrequency ablation of genicular nerves has proved to be successful in relieving pain and incapacity caused by osteoarthritis of the knee. However, long-term efficacy of such a treatment remains to be assessed. The current study aimed to reproduce radiofrequency neurotomy of genicular nerves to manage gonarthrosis pain and disability and establish therapeutic response until 1 year after intervention. METHODS: This single-center, prospective, observational, noncontrolled, longitudinal study included patients with grade 3 to 4 gonarthrosis suffering from intractable knee pain, scoring 5 or more on the visual analog scale (VAS) during >6 months...
January 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27822391/ultrasound-guided-genicular-nerve-thermal-radiofrequency-ablation-for-chronic-knee-pain
#8
Joshua Wong, Nicholas Bremer, Paul D Weyker, Christopher A J Webb
Osteoarthritis (OA) of the knee is one of the most common joint diseases affecting adults in the United States. For elderly patients with multiple medical comorbidities who do not wish to undergo total knee arthroplasty (TKA), lifestyle modification, pharmacologic management, and injections are the mainstay of therapy. Previously, pain management interventions were limited to intra-articular joint injections and viscosupplementation with hyaluronic acid. Fluoroscopic-guided techniques for radiofrequency ablation (RFA) of the genicular nerves have been previously described and a recent cadaveric study suggests that ultrasound-guided genicular nerve blocks can be performed accurately...
2016: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/27768679/medial-knee-approach-an-anatomical-study-of-minimally-invasive-plate-osteosynthesis-in-medial-femoral-condylar-fracture
#9
Norachart Sirisreetreerux, Babar Shafiq, Greg M Osgood, Erik A Hasenboehler
OBJECTIVES: To determine the location of distal medial neurovascular structures, identifying a medial "safe zone" for minimally invasive plate osteosynthesis to treat displaced femoral condylar fractures. METHODS: Eleven uninjured lower-half torsos were dissected on the bilateral medial lower thigh. A longitudinal incision was made at the midsagittal plane of the medial thigh starting 1 cm proximal to the knee joint and extending to the proximal one-third of the femur...
November 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27703824/spontaneous-recurrent-hemarthrosis-of-the-knee-a-report-of-two-cases-with-a-source-of-bleeding-detected-during-arthroscopic-surgery-of-the-knee-joint
#10
Eisuke Nomura, Hisatada Hiraoka, Hiroya Sakai
We report two cases of the spontaneous recurrent hemarthrosis of the knee. In these cases lateral meniscus was severely torn and a small tubular soft tissue with pulsation was identified on the synovium in the posterolateral corner during arthroscopic surgery of the knee joint. Gentle grasping of this tissue by forceps led to pulsating bleeding, which stopped by electrocoagulation. This soft tissue was considered a source of bleeding, since no recurrence of hemarthrosis was observed for more than four years after surgery...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27673176/poster-426-comparisons-of-functional-pain-relief-after-bilateral-synvisc-injections-and-genicular-nerve-radiofrequency-ablations-a-case-report
#11
David Schanbacher, Michelle Poliak-Tunis, Michael J Suer
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27641918/a-comparison-of-genicular-nerve-treatment-using-either-radiofrequency-or-analgesic-block-with-corticosteroid-for-pain-after-a-total-knee-arthroplasty-a-double-blind-randomized-clinical-study
#12
Salima Qudsi-Sinclair, Enrique Borrás-Rubio, Juan F Abellan-Guillén, María Luz Padilla Del Rey, Guadalupe Ruiz-Merino
BACKGROUND: Knee osteoarthritis is a disease that affects a third of the population over 65 years of age, and it is increasingly becoming a motive for consultation and a source of pain and disability. The gold standard surgical treatment is a total knee arthroplasty; however, 15% to 30% of patients who have undergone surgery continue to experience pain and functional limitation. METHODS: A double-blind, randomized clinical study compared neurolysis using traditional radiofrequency (RF) to local anesthetic and corticosteroid block of the superolateral, superomedial, and inferomedial branches of the knee genicular nerves in patients who had total knee arthroplasty but still experience pain...
September 19, 2016: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/27639652/demonstration-of-lesions-produced-by-cooled-radiofrequency-neurotomy-for-chronic-osteoarthritic-knee-pain-a-case-presentation
#13
Michael E Farrell, Genaro Gutierrez, Mehul J Desai
: This case presentation demonstrates radiographic evidence of lesions created following cooled radiofrequency (cRF) neurotomy of the knee. A 67-year-old man presented with chronic left knee osteoarthritis, pain, and disability. After a failed trial of conservative treatments, the patient underwent diagnostic genicular nerve blocks and subsequent cRF neurotomy, of the left knee. Shortly after cRF, magnetic resonance imaging (MRI) of the left knee was performed. On MRI, lesions created by cRF ablation were identified...
September 14, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27604676/lateral-genicular-artery-flap-for-reconstruction-of-a-large-knee-defect-following-oncological-resection-case-report
#14
Andrei Zbuchea
This article presents the case of a 53 years old patient, with ulcerated and infected dermatofibrosarcoma, extended on the anterolateral side of the left knee. The postexcisional defect, exposing patella, was covered through a regional cutaneous flap of the distal third of the thigh, upper lateral genicular artery-based, measuring 20/10 cm, together with expanded free skin split grafts, applied in proximal third of the leg and distal third of the left thigh. Surgical stages and favorable postoperative evolution are exposed...
July 2016: Chirurgia
https://www.readbyqxmd.com/read/27571547/the-medial-femoral-trochlea-flap-with-a-monitor-skin-island-report-of-two-cases
#15
M Tremp, A Haumer, R Wettstein, Y X Zhang, P Honigmann, D J Schaefer, D F Kalbermatten
In this report, we present two cases of the bony reconstruction with the medial trochlea (MFT) flap including a skin island that was used to monitor the perfusion of flap in the postoperative period. Between March 2013 and April 2015, we performed surgery on two patients who suffered from scaphoid and talus non-union after trauma and initial treatment by osteosynthesis. A skin island (1 cm × 1 cm and 3 cm × 1 cm, respectively) was included with the osseous flap (1.6 cm × 1 cm × 1 cm and 2 cm × 3 cm × 2 cm, respectively) to assess the perfusion of the flap...
August 29, 2016: Microsurgery
https://www.readbyqxmd.com/read/27558705/arterialized-venous-bone-flaps-an-experimental-investigation
#16
Farzad Borumandi, James P Higgins, Heinz Buerger, Anna Vasilyeva, Memmet Emre Benlidayi, Leman Sencar, Alexander Gaggl
In arterialized venous flaps (AVFs) the venous network is used to revascularize the flap. While the feasibility of AVFs in soft tissues has been reported there is no study on osseous AVFs. In this study we aim to assess the flap survival of osseous AVFs in a pig model. Medial femoral condyle flaps were elevated in 18 pigs. Three groups were created: AVF (n = 6), conventional arterial flap (cAF, n = 6) and bone graft (BG, n = 6). The AVFs were created by anastomosis of genicular artery with one vena comitans while leaving one efferent vein for drainage...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27554854/evaluation-of-an-axial-pattern-flap-based-on-the-cranial-cutaneous-branch-of-the-saphenous-artery-a-cadaveric-perfusion-study
#17
Andrew P Murdoch, Sam N Greenaway, Laura J Owen, Alan Danielski
OBJECTIVES: To confirm the anatomic location of the cranial cutaneous branch of the saphenous artery (CCSA), delineate the angiosome of the CCSA, and provide guidelines for clinical use of an axial pattern flap based on the CCSA. STUDY DESIGN: Anatomic study. ANIMALS: Greyhound cadavers (n=10). METHODS: Shortly after euthanasia, the CCSA was identified and isolated in each hindlimb. Methylene blue and radiographic perfusion studies were performed...
October 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27515095/which-one-is-more-effective-for-the-clinical-treatment-of-chronic-pain-in-knee-osteoarthritis-radiofrequency-neurotomy-of-the-genicular-nerves-or-intra-articular-injection
#18
Sinem Sarı, Osman N Aydın, Yasemin Turan, Pınar Özlülerden, Ufuk Efe, İmran Kurt Ömürlü
OBJECTIVES: To compare the efficacy of intra-articular injection and radiofrequency (RF) neurotomy of genicular nerves in patients with chronic knee osteoarthritis (OA) pain. METHODS: Seventy-three patients with knee OA were included in the study. Patients were randomly assigned to Group IA (intra-articular 2.5 mL of bupivacaine, 2.5 mg of morphine and 1 mL of betamethasone, 6 mL of fluid injection) or Group RF (RF neurotomy of the genicular nerves). The outcome measures included a pain scale (visual analog scale, VAS) and Western Ontario and McMaster Universities (WOMAC) Index of Osteoarthritis...
August 12, 2016: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/27465201/medial-knee-approach-an-anatomical-study-of-mipo-in-medial-femoral-condylar-fracture
#19
Norachart Sirisreetreerux, Babar Shafiq, Greg M Osgood, Erik A Hasenboehler
OBJECTIVES: To determine the location of distal medial neurovascular structures, identifying a medial "safe zone" for minimally invasive plate osteosynthesis to treat displaced femoral condylar fractures. METHODS: Eleven uninjured lower-half torsos were dissected on the bilateral medial lower thigh. A longitudinal incision was made at the midsagittal plane of the medial thigh starting 1 cm proximal to the knee joint and extending to the proximal one-third of the femur...
July 21, 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27389118/ultrasound-guided-genicular-nerve-pulsed-radiofrequency-treatment-for-painful-knee-osteoarthritis-a-preliminary-report
#20
Serdar Kesikburun, Evren Yaşar, Ayça Uran, Emre Adigüzel, Bilge Yilmaz
BACKGROUND: Genicular nerve ablation with radiofrequency (RF) has recently emerged as a promising treatment in the management of osteoarthritis related knee pain. To date, genicular nerve injections have been performed under fluoroscopic guidance. OBJECTIVE: To evaluate the effect of ultrasound-guided genicular nerve pulsed RF treatment on chronic knee pain and function in patients with knee osteoarthritis. STUDY DESIGN: Single-arm prospective study...
July 2016: Pain Physician
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