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Lateral retinacular release

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https://www.readbyqxmd.com/read/29188420/a-lateral-retinacular-release-during-total-knee-arthroplasty%C3%A2-changes-femorotibial-kinematics-an-in-vitro-study
#1
Arnd Steinbrück, Christian Schröder, Matthias Woiczinski, Alexander Glogaza, Peter E Müller, Volkmar Jansson, Andreas Fottner
INTRODUCTION: Lateral retinacular release (LRR) is a common procedure during total knee arthroplasty (TKA), especially if patellar maltracking is observed intraoperatively. The impact of LRR on patellofemoral kinematics is well-examined, but the influence on femorotibial kinematics requires more elucidation. Therefore, the aim of this study was to evaluate the effects of LRR on femorotibial kinematics in vitro. MATERIALS AND METHODS: A fixed bearing TKA was implanted in six human knee specimens...
November 29, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29138916/lateral-retinaculum-plasty-instead-of-lateral-retinacular-release-with-concomitant-medial-patellofemoral-ligament-reconstruction-can-achieve-better-results-for-patellar-dislocation
#2
Chang Liu, Guman Duan, Yingzhen Niu, Pengkai Cao, Kunpeng Fu, Jinghui Niu, Fei Wang
PURPOSE: To elucidate the outcomes of lateral retinaculum plasty versus lateral retinacular release with concomitant medial patellofemoral ligament (MPFL) reconstruction. METHODS: In a prospective study, 59 patients treated at our institution from 2012 to 2014 were included. The 59 patients were randomly divided into two groups. Group I included 27 patients who underwent lateral retinacular release and MPFL reconstruction. Group II included 32 patients who underwent lateral retinaculum plasty and MPFL reconstruction...
November 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28993891/value-of-antibiotic-prophylaxis-in-routine-knee-arthroscopy-a%C3%A2-retrospective-study
#3
Yongjian Qi, Xu Yang, Zhengqi Pan, Hua Wang, Liaobin Chen
OBJECTIVE: Prophylactic antibiotic use prior to routine knee arthroscopy remains controversial. It is important to know whether antibiotics help decrease the surgical site infection (SSI) rate. Our aims were to assess the efficacy of antibiotic prophylaxis in preventing SSI and to identify risk factors for SSI following routine knee arthroscopy without an implant. METHODS: A retrospective study was conducted using the electronic medical records at the authors' hospital to identify patients that underwent routine knee arthroscopy without an implant between October 2010 and October 2016...
October 9, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28950794/the-optimal-protocol-to-reduce-blood-loss-and-blood-transfusion-after-unilateral-total-knee-replacement-low-dose-ia-txa-plus-30-min-drain-clamping-versus-drainage-clamping-for-the-first-3-h-without-ia-txa
#4
Joo Hyun Park, Sung Wook Choi, Eun Ho Shin, Myung Hoon Park, Myung Ku Kim
INTRODUCTION: Although intraarticular tranexamic acid (IA-TXA) administration or drainage clamping are popular methods used to reduce blood loss after total knee replacement (TKR), the protocol remains controversial. We aimed (1) to establish new protocols through investigating whether two methods, that is, low-dose (500 mg) IA-TXA plus 30-min drain clamping and drainage clamping for the first 3 h without IA-TXA, can reduce blood loss and blood transfusion after unilateral TKR and (2) to make recommendations related to clinical application...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28884103/lateral-patellar-retinacular-release-changes-over-the-last-ten-years
#5
REVIEW
Leonardo Pini Rosalem Marciano da Fonseca, Ednei Haruo Kawatake, Alberto de Castro Pochini
Lateral retinacular release is a useful resource in knee surgery that can be used for disorders of the extensor mechanism. For many years, it was indiscriminately used in the treatment of the various patellofemoral joint alterations, with conflicting functional results. This study aimed to analyze the changes that have occurred in the indications and clinical effectiveness of lateral retinacular release by reviewing the relevant literature of the past ten years, comparing it to the classic literature on the subject...
June 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28624557/arthroscopic-lateral-retinacular-release-medial-retinacular-plication-and-partial-medial-tibial-tubercle-transfer-for-recurrent-patellar-dislocation
#6
Song Chen, Yiqin Zhou, Qirong Qian, Yuli Wu, Peiliang Fu, Haishan Wu
OBJECTIVE: To assess the efficacy of a therapeutic protocol composed of arthroscopic lateral retinacular release, medial retinacular plication, and partial medial tibial tuberosity transfer for patients with recurrent patellar dislocation. METHOD: 71 patients, 11 males and 60 females and a total of 77 knees, with recurrent dislocation of the patella were enrolled between 1998 and 2012. The average age of the patients was 19.5 years and 67 of them had previous knee trauma history...
August 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28451613/medial-patellar-instability-treatment-and-outcomes
#7
Gilbert Moatshe, Tyler R Cram, Jorge Chahla, Mark E Cinque, Jonathan A Godin, Robert F LaPrade
BACKGROUND: Historically, a lateral retinacular release was one of the primary surgical interventions used to treat lateral patellar instability. However, disruption of the lateral structures during this procedure has been associated with medial instability of the patella. HYPOTHESIS: We hypothesize that good to excellent outcomes can be achieved at midterm follow-up after lateral patellotibial ligament reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28360504/lateral-facetectomy-decreased-patellofemoral-contact-pressure-in-total-knee-replacement-a-cadaveric-study
#8
Varah Yuenyongviwat, Khanin Iamthanaporn, Theerawit Hongnaparak
BACKGROUND: To study the patellofemoral contact pressure in patellar non-resurfacing total knee replacement after lateral facetectomy in different amounts of bone removal. METHODS: Eight knees from four fresh-frozen whole body cadavers were used for this study. Total knee replacement of all knees was performed by the same surgical technique. The contact pressure was measured and recorded when the knee performed passive motion from full extension to full flexion in native patella, lateral retinacular junction release, 10% lateral facetectomy, and 20% lateral facetectomy...
January 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28318932/patellar-instability-treated-with-distal-femoral-osteotomy
#9
Ishaan Swarup, Osama Elattar, S Robert Rozbruch
BACKGROUND: Patellar instability can cause significant disability in both pediatric and adult patients, and it is associated with several factors including genu valgum. In this study, we describe the role of a lateral opening wedge distal femoral osteotomy (DFO) combined with lateral retinacular release in addressing genu valgum with associated patellar instability. The rationale for this approach is to medialize the patellar tendon insertion and decrease the Q angle with DFO. METHODS: A consecutive series of patients were studied, and our outcomes of interest included improvements in radiographic measures and patient outcomes...
March 17, 2017: Knee
https://www.readbyqxmd.com/read/28236551/soft-tissue-releases-in-total-knee-arthroplasty-for-valgus-deformities
#10
Ke Xie, Steven T Lyons
BACKGROUND: Primary total knee arthroplasty (TKA) for valgus knee deformities can be challenging. Soft tissue releases are often necessary to achieve a well-balanced knee. We reviewed the frequency of soft tissue releases including lateral retinacular release (LRR) as it pertains to preoperative limb alignment. Postoperatively, we evaluated limb alignment, knee range of motion, and complications. METHODS: From 2010 to 2016, 214 primary TKAs with valgus deformity were performed by a single surgeon...
January 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28045869/why-do-patellofemoral-stabilization-procedures-fail-keys-to-success
#11
REVIEW
Nick Caplan, Islam Nassar, Bobby Anand, Deiary F Kader
In recent years, surgical interventions for patellofemoral joint instability have gained popularity, possibly revitalized by the recent advances in our understanding of patellofemoral joint instability and the introduction of a number of new surgical procedures. This rise in surgical intervention has brought about various complications. In this review article, we present the complications that are associated with 5 main surgical procedures to stabilize the patella-medial patellofemoral ligament reconstruction, tibial tubercle osteotomy, trochleoplasty, lateral release/lateral retinacular lengthening, and derotation osteotomies...
March 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/27861210/symptomatic-venous-thromboembolism-after-adolescent-knee-arthroscopy
#12
Robert F Murphy, Benton Heyworth, Dennis Kramer, Manahil Naqvi, Patricia E Miller, Yi-Meng Yen, Mininder S Kocher, Benjamin J Shore
BACKGROUND: The frequency of knee arthroscopy procedures is increasing in pediatric and adolescent patients. In general, complications after these procedures in adolescents are uncommon. The purposes of this study are to report the incidence of venous thromboembolism (VTE) in adolescent patients after knee arthroscopy procedures, as well identify risk factors in this patient population. METHODS: Medical records were reviewed in all pediatric and adolescent patients (≤19 y) who underwent an arthroscopic knee procedure from 2010 to 2014 and were diagnosed with a symptomatic VTE in the postoperative period...
November 17, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/27703948/recurrent-patellar-instabilty-culminating-in-a-vertically-rotated-and-a-locked-patellar-dislocation-a-rare-entity
#13
Devgan A, Rohilla R, Jain A, Mehta H, Singh S
INTRODUCTION: Locked vertical patellar dislocations are rare and pose a therapeutic challenge. This case is more unusual, as the patient was a known case of recurrent patellar dislocation and presented with an atraumatic locked and vertically rotated patellar dislocation. This type of presentation has never been reported in literature to the best of our knowledge. CASE PRESENTATION: A 14-year-old healthy male child with previous history of recurrent lateral dislocation of patella presented to accident & emergency department with complaints of inability to walk or bear weight on his left lower limb after he spontaneously dislocated his patella while running on uneven ground...
April 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/27699725/arthroscopic-lateral-retinacular-release-and-modified-elmslie-trillat-operation-improve-severe-isolated-lateral-patello-femoral-osteoarthritis
#14
Renn-Chia Lin, Ko-Huang Lue, Ko-Hsiu Lu
To evaluate whether arthroscopic lateral retinacular release and the modified Elmslie-Trillat operation improve osteoarthritis (OA) progression and clinical outcomes in patients with severe isolated lateral patello-femoral OA. Nine women (11 knees) and one man (one knee) with isolated late-stage lateral patello-femoral OA underwent surgery. The severity of patello-femoral OA was recorded using the Merchant method, while the level of pain and anterior knee function were scored using the visual analogue scale (VAS) and Kujala knee scores, respectively...
July 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27631015/operative-management-of-patellar-instability-in-the-united-states-an-evaluation-of-national-practice-patterns-surgical-trends-and-complications
#15
Armin Arshi, Jeremiah R Cohen, Jeffrey C Wang, Sharon L Hame, David R McAllister, Kristofer J Jones
BACKGROUND: Treatment of patellofemoral instability has evolved as our understanding of the relevant pathoanatomy has improved. In light of these developments, current practice patterns and management trends have likely changed to reflect these advancements; however, this has not been evaluated in a formal study. PURPOSE: To determine nationwide patient demographics, surgical trends, and postoperative complications associated with the operative management of patellar instability surgery...
August 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27574606/lateral-patellofemoral-ligament-reconstruction-to-restore-functional-capacity-in-patients-previously-undergoing-lateral-retinacular-release
#16
Mitch Beckert, Dylan Crebs, Michael Nieto, Yubo Gao, John Albright
AIM: To study patient outcomes after surgical correction for iatrogenic patellar instability. METHODS: This retrospective study looked at 17 patients (19 knees) suffering from disabling medial patellar instability following lateral release surgery. All patients underwent lateral patellofemoral ligament (LPFL) reconstruction by a single surgeon. Assessments in all 19 cases included functional outcome scores, range of motion, and assessment for the presence of apprehension sign of the patella to determine if LPFL reconstruction surgery was successful at restoring patellofemoral stability...
August 16, 2016: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/27523259/the-effect-of-tourniquets-on-patellofemoral-joint-congruity-during-total-knee-arthroplasty
#17
COMPARATIVE STUDY
Yoshio Matsui, Kosuke Shintani, Yoshiaki Okajima, Masanori Matsuura, Shigeru Nakagawa
BACKGROUND: Incongruity of the patellofemoral joint after total knee arthroplasty (TKA) causes anterior knee pain. Intraoperative congruity tests are necessary to avoid unnecessary lateral retinacular release, and the usage of tourniquets may influence these results. The purpose of this study was to examine the effect of tourniquets on patellofemoral joint congruity during TKA. MATERIALS AND METHODS: Two hundreds and seventeen knees were examined after TKA. Skyline radiographs at 60° and 90° flexion were taken immediately after wound closure before and after tourniquet deflation to compare changes in patellar tilt angle...
September 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27435989/coronal-patellar-osteotomy-of-the-external-facet-combined-with-the-release-of-the-lateral-retinaculum-improves-the-clinical-outcomes-of-isolated-lateral-release-in-lateral-knee-compartment-syndrome
#18
COMPARATIVE STUDY
A P Rosales-Varo, O Roda-Murillo, N Prados-Olleta, M A García-Espona
OBJECTIVE: To describe a novel coronal osteotomy of the external facet of the patella, and to evaluate if the outcomes of the treatment of lateral knee compartment syndrome (LKCS) with this osteotomy, combined with the release of the external lateral retinaculum, are better than the isolated lateral retinacular release. MATERIAL AND METHODS: A prospective study with a 2 year follow up that included 70 patients diagnosed with LKCS, distributed into 2 groups. The first group included 50 patients on whom the lateral retinacular release combined with osteotomy was performed, and a second group on whom an isolated retinacular release was performed...
September 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/27307362/comparison-of-mini-midvastus-and-conventional-total-knee-arthroplasty-with-clinical-and-radiographic-evaluation-a-prospective-randomized-clinical-trial-with-5-year-follow-up
#19
RANDOMIZED CONTROLLED TRIAL
Hennie Verburg, Nina M C Mathijssen, Dieu-Donné Niesten, Jan A N Verhaar, Peter Pilot
BACKGROUND: The main objective of this prospective randomized study was to compare the clinical and radiographic outcomes of the mini-midvastus (MMV) approach with the conventional approach for total knee arthroplasty at the 5-year follow-up. METHODS: Ninety-seven patients (100 knees) with osteoarthritis were assigned to the MMV group or to a group receiving conventional total knee arthroplasty. Intraoperative and postoperative clinical data were collected. At 6 weeks and at 1, 2, and 5 years postoperatively, the Knee Injury and Osteoarthritis Outcome Score (KOOS), the Oxford Knee Score (OKS), the Knee Society Score (KSS), and the Short Form (SF)-12 were completed...
June 15, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27206069/results-of-lateral-retinacular-release-plus-circumpatellar-electrocautery-in-total-knee-arthroplasty-without-patellar-resurfacing
#20
Yong Wang, Jun-Ying Sun, Guo-Chun Zha
Anterior knee pain (AKP) is integral to the overall success of total knee arthroplasty (TKA) without patellar resurfacing. Numerous studies have evaluated various factors that may contribute to AKP, including patellofemoral design, surgical technique, characteristics of the patient, and degree of chondromalacia. This study aims to explore whether patients who received lateral retinacular release (LRR) plus circumpatellar electrocautery (CE) in TKA attain a low incidence of AKP and whether the LRR plus CE increases postoperative complications...
March 2017: Journal of Knee Surgery
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