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David R Walega, Zachary L McCormick
No abstract text is available yet for this article.
March 5, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Kyra G Janot, Patrick T Martone
The evolution of uncalcified genicula in upright, calcified corallines has occurred at least three times independently, resulting in articulated corallines within Corallinoideae, Lithophylloideae, and Metagoniolithoideae. Genicula confer flexibility to otherwise rigid thalli, and the localization of bending at discrete intervals amplifies bending stress in genicular tissue. Genicular morphology must therefore be balanced between maintaining flexibility while mitigating or resisting stress. Genicula in the three articulated lineages differ in both cellular construction and development, which may result in different constraints on morphology...
March 5, 2018: Journal of Phycology
Ines E Tinhofer, Maximilian Zaussinger, Stefan H Geyer, Stefan Meng, Lars-Peter Kamolz, Chieh-Han J Tzou, Wolfgang J Weninger
Studies examining thick skin of the thumb pad have challenged the existence of an arterial plexus in the papillary dermis. Instead of a plexus, discrete arterial units, interconnected by arterio-arterial anastomoses, were identified. We hypothesise that the dermal arteries of thin skin are arranged likewise and that there are fewer arterio-arterial anastomoses in the centre of an angiosome than in zones where neighbouring angiosomes overlap. To test these hypotheses, we examined the dermal arteries in the centre of the cutaneous angiosome of the descending genicular artery (DGA) and its zone of overlap with neighbouring angiosomes...
February 14, 2018: Journal of Anatomy
S Enzinger, H Bürger, A Gaggl
The lateral femoral condyle (LFC) flap is a new flap first reported in 2015 for the treatment of osteomyelitis in hand surgery. This paper introduces a technique of osteochondral LFC flap harvest for mandibular condyle reconstruction and reports on the use of this flap in temporomandibular joint reconstruction. For condyle resection, a pre-auricular approach saving the temporal artery and vein is performed. A step osteotomy technique is used for condyle resection. LFC harvesting starts with dissection of the popliteal artery and vein...
January 17, 2018: International Journal of Oral and Maxillofacial Surgery
Doo-Hwan Kim, Seong-Soo Choi, Syn-Hae Yoon, So-Hee Lee, Dong-Kyun Seo, In-Gyu Lee, Woo-Jong Choi, Jin-Woo Shin
BACKGROUND: Recently, several studies suggested that radiofrequency (RF) ablation of the genicular nerves is a safe and effective therapeutic procedure for intractable pain associated with chronic knee osteoarthritis (OA). Diagnostic genicular nerve block (GNB) with local anesthetic has been generally conducted before making decisions regarding RF ablation. Although GNB has been recently performed together with corticosteroid, the analgesic effects of corticosteroids for treating chronic pain remain controversial...
January 2018: Pain Physician
Samir Kumta, Sudhir Warrier, Leena Jain, Rani Ummal, Manik Menezes, Shrirang Purohit
Introduction: Scaphoid fractures are not very common and frequently remain undiagnosed, presenting in non-union and persistent wrist pain. Options for scaphoid fracture treatment have been described over several decades, however, none with an optimal solution to achieve union along with good hand function. We describe here, the use of vascularised corticoperiosteal bone grafts from the medial femoral condyle (MFC) as a solution for the difficult problem of scaphoid fracture non-union...
May 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
Zachary L McCormick, Rajiv Reddy, Marc Korn, David Dayanim, Raafay H Syed, Meghan Bhave, Mikhail Zhukalin, Sarah Choxi, Ali Ebrahimi, Mark C Kendall, Robert J McCarthy, Dost Khan, Geeta Nagpal, Karina Bouffard, David R Walega
Background and Objectives: Genicular nerve radiofrequency ablation is an effective treatment for patients with chronic pain due to knee osteoarthritis; however, little is known about factors that predict procedure success. The current study evaluated the utility of genicular nerve blocks to predict the outcome of genicular nerve cooled radiofrequency ablation (cRFA) in patients with osteoarthritis. Methods: This randomized comparative trial included patients with chronic knee pain due to osteoarthritis...
December 28, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Mark Corriveau, Jacob D Lescher, Amgad S Hanna
Peroneal neuropathy is a common pathology encountered by neurosurgeons. Symptoms include pain, numbness, and foot drop. When secondary to compression of the nerve at the fibular head, peroneal (fibular) nerve release is a low-risk procedure that can provide excellent results with pain relief and return of function. In this video, the authors highlight key operative techniques to ensure adequate decompression of the nerve while protecting the 3 major branches, including the superficial peroneal nerve, deep peroneal nerve, and recurrent genicular (articular) branches...
January 2018: Neurosurgical Focus
Hui-Min Zhou, Fan Liu, Ai-Ge Yang, Yu-Qing Guo, Ya-Ru Zhou, Yong-Quan Gu, Bao-Yong Yan, Quan-Hai Li
The efficacy, safety and impact of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) associated with the intra-calf muscular injection of bone marrow mononuclear cells (BMMCs) in the treatment of type 2 diabetes mellitus (T2DM)-induced lower extremity vascular disease (LEVD) were evaluated. Patients with T2DM-LEVD were randomly divided into a control group and BMMCs group to assess the efficacy and safety of the treatment; serum VEGF and bFGF levels were detected. The BMMCs group was divided into superior genicular artery (SGA) and inferior genicular artery (IGA) subgroups as well as low-dose and high-dose subgroups for the comparison of efficacy indices...
November 2017: Experimental and Therapeutic Medicine
Javier Mata, Pedro Valentí, Beatriz Hernández, Bartolome Mir, Jose Luis Aguilar
INTRODUCTION: The goals for the management of patients with osteoarthritis (OA) of the knee are to control pain and to minimise disability. Because the number of patients will increase as the population ages, alternative approaches to alleviate their joint pain other than conventional treatments are necessary. The purpose of this article is to present a refined protocol to determine if there is long-term improvement in pain and function after ultrasound-guided pulsed radiofrequency treatment of the genicular nerves (GNs) in patients with chronic painful knee OA...
November 3, 2017: BMJ Open
Zachary L McCormick, David R Walega
No abstract text is available yet for this article.
October 25, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Zachary L McCormick, David R Walega
No abstract text is available yet for this article.
August 22, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Rajiv D Reddy, Zachary L McCormick, Ben Marshall, Ryan Mattie, David R Walega
BACKGROUND: Chronic knee pain from osteoarthritis (OA) is common in the aging and the obese population. Radiofrequency ablation of the genicular nerves has been introduced as a potential surgery-sparing treatment for chronic knee pain from OA, yet only two outcome studies have been published and optimal patient selection for this procedure has not been established. OBJECTIVES: We describe a standardized protocol for selecting patients for cooled radiofrequency ablation (C-RFA) of the genicular nerves, as well as the clinical outcomes of four patients ages 63-65 years...
December 2016: Anesthesiology and Pain Medicine
Anne Lejay, Salomé Kuntz, Anne-Florence Rouby, Yannick Georg, Fabien Thaveau, Bernard Geny, Nabil Chakfé
We report the case of a 71-year-old man complaining of swollen left limb and progressively worsening pain. He underwent surgery 12 years ago for popliteal artery aneurysm with proximal and distal ligation and venous bypass grafting. The patient was diagnosed as having left peroneal neuropathy caused by a 10.5 cm expanded aneurysmal sac compressing the peroneal nerve in the popliteal fossa. The patient underwent open repair with opening of the aneurysmal sac, removal of the thrombus, and sewing of the left genicular artery responsible for back-bleeding...
September 23, 2017: Annals of Vascular Surgery
L M R Oversier, B J G A Corten, D G Barten, J W M Elshof
BACKGROUND: Pseudoaneurysm is a rare complication of surgery of the knee. The pathogenesis of false aneurysm involves partial arterial laceration, which allows hemorrhage into surrounding soft tissues that confine it. Although most cases in literature described pseudoaneurysms after total knee arthroplasty, it can be associated with arthroscopic knee surgery too. METHODS: Here, we report an uncommon case of a false aneurysm of the superior lateral genicular artery following anterior cruciate ligament ligamentoplasty using an autograft semitendinosus-tendon...
September 25, 2017: Acta Chirurgica Belgica
Charlotte Runge, Bernhard Moriggl, Jens Børglum, Thomas Fichtner Bendtsen
BACKGROUND AND OBJECTIVES: The popliteal nerve plexus contributes to afferent knee-pain conduction. It is mainly formed by genicular branches from the posterior obturator and the tibial nerves, innervating the intra-articular and posterior knee region. A subinguinal obturator nerve block alleviates pain after total knee arthroplasty. Reduced hip adductor motor function could be avoided by a posterior obturator nerve block inside the popliteal fossa.The aim of this study was to evaluate the spread of dye after a distal adductor canal (AC) injection to the popliteal fossa and coloring of the popliteal plexus and the genicular branch of the posterior obturator nerve by dissection...
November 2017: Regional Anesthesia and Pain Medicine
Menno E Sluijter, Alexandre Teixeira
No abstract text is available yet for this article.
June 2017: Anesthesiology and Pain Medicine
Mohamed Morsy, Yoo Joon Sur, Osman Akdag, Amr Eisa, Tarek A El-Gammal, Nirusha Lachman, Steven L Moran
BACKGROUND: The lateral femoral condyle (LFC) flap is a vascularized bone flap based on the superior lateral genicular artery (SLGA). Harvest technique for this flap has not yet been demonstrated. The purpose of this study was to better delineate the blood supply to the bone and skin of this flap to allow for a safe and effective harvest. MATERIALS AND METHODS: Twenty-three lower extremities were injected with latex or a mixture of latex and barium sulfate. The SLGA was identified and dissected, documenting the course, diameter, anatomical relations, length, and branches...
August 16, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
Lauren N Sylvester, Johnathan H Goree
We present a case of a 68-year-old woman with 6 months of chronic unilateral posterior thigh pain after a total knee arthroplasty. The patient's pain was refractory to various treatments. After appropriate diagnostic tests, a genicular nerve block and subsequent radiofrequency ablation were performed. These procedures provided substantial pain relief of her thigh pain at 3 months follow-up.
November 15, 2017: A & A Case Reports
Yu Li, Chunfu Dai
The objective is to increase awareness of facial nerve schwannomas (FNSs). Clinical data from 32 cases with FNSs who received surgical treatment from 2005 to 2015 were reviewed retrospectively. The clinical data included age, sex, presentations, duration, facial nerve function, temporal-bone high-resolution computed tomography (CT) and magnetic resonance imaging (MRI) findings, surgical approaches, and postoperative histopathological examination. 16 men and 16 women were included, aged 7-69 years. The average age at diagnosis was approximately 44 years...
September 2017: European Archives of Oto-rhino-laryngology
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