2,454 results match your criteria posterolateral approach

Estimation of forces on anterior cruciate ligament in dynamic activities.

Biomech Model Mechanobiol 2021 Apr 20. Epub 2021 Apr 20.

Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.

In this work, a nonlinear strain rate dependent plugin developed for the OpenSim® platform was used to estimate the instantaneous strain rate (ISR) and the forces on the ACL's anteromedial (aACL) and posterolateral (pACL) bundles during walking and sudden change of direction of running termed as 'plant-and-cut' (PC). The authors obtained the kinematics data for walking via optical motion capture. PC movements, along with running kinematics, were obtained from the literature. Read More

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Defining a Safe Zone for Percutaneous Screw Fixation of Posterior Malleolar Fractures.

J Foot Ankle Surg 2021 Mar 24. Epub 2021 Mar 24.

Senior Staff Specialist, Department of Musculoskeletal Services - Surgical, Anaesthetics and Procedural Services (SaPS), Gold Coast University Hospital, Gold Coast Health, Southport, Queensland, Australia.

Posterior malleolar fractures require fixation to confer stability to the ankle. Although some have suggested that fractures involving less than 25% of the articular surface require no intervention, estimation of malleolar size on plain imaging is inaccurate. Some posterior malleolar fractures may be particularly suitable for posterior-to-anterior percutaneous screw fixation of the posterior malleolus via a posterolateral approach. Read More

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Fixation of Posterior Malleolar Fractures with Posterior Plating Through a Posterolateral Approach.

J Am Podiatr Med Assoc 2021 Mar;111(2)

Background: We aimed to evaluate radiologic and clinical outcomes of ankle fractures involving posterior fragments that were fixed with a posterior plate by the posterolateral approach.

Methods: Sixty-five patients who were followed for at least 12 months and were older than 18 years were included. The posterior malleolus fractures were classified according to the Haraguchi classification system with computed tomography (CT). Read More

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Posterior knee arthroscopy facilitates the safe and effective all-inside repair of locked bucket-handle medial meniscal tear using a suture hook technique.

Knee Surg Sports Traumatol Arthrosc 2021 Apr 19. Epub 2021 Apr 19.

Bone Joint and Related Tissues Research Center, Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Sharifi Manesh Street, Shariati Street, Tehran, Iran.

Purpose: This study reported the outcomes of locked bucket-handle medial meniscal tear (BHMMT) repairs using an arthroscopic posterior approach during anterior cruciate ligament (ACL) reconstruction.

Methods: Between 2011 and 2014, 48 patients with BHMMTs and ACL tears who met the eligibility criteria were enrolled in the present study. BHMMTs were assessed using a posterolateral transseptal portal and repaired using a posteromedial portal. Read More

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Paraplegia due to spinal meningioma during the third trimester of pregnancy: case report and literature review.

Spinal Cord Ser Cases 2021 Apr 15;7(1):31. Epub 2021 Apr 15.

Clinical Epidemilogy, Anesthesiolgy, Cúcuta, Norte Santander, Colombia.

Introduction: Spinal meningiomas represent 25-45% of intradural spinal tumors and ~2% of meningiomas of the central nervous system (CNS), and their occurrence during pregnancy is unusual. We present an updated literature review.

Case Report: A 36-year-old woman, at 32. Read More

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[Treatment of unstable fresh thoracolumbar burst fracture by over-bending rod reduction and fixation technique via posterior approach].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Apr;35(4):458-463

Department of Spine Surgery, Luohe Central Hospital, Luohe Henan, 462000, P.R.China.

Objective: To investigate the efficacy and safety of over-bending rod reduction and fixation technique via posterior approach in the treatment of unstable fresh thoracolumbar burst fracture.

Methods: A clinical data of 27 patients with unstable fresh thoracolumbar burst fracture, who were met the inclusive criteria and admitted between January 2018 and October 2019, was retrospectively analyzed. There were 15 males and 12 females with an average age of 41. Read More

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[Comparison of effectiveness between plate and screw internal fixation in treatment of posterior malleolus fractures through posterolateral approach].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Apr;35(4):431-438

Guizhou Medical University, Guizhou Guiyang, 550004, P.R.China.

Objective: To compare the effectiveness of posterior malleolus fractures treated by plate and screw internal fixation through posterolateral approach.

Methods: The clinical data of 95 patients with posterior malleolus fractures who were admitted between January 2016 and December 2019 and met the selection criteria were retrospectively analysed. They were divided into plate group (44 cases, treated with posterolateral plate internal fixation) and screw group (51 cases, treated with posterolateral screw internal fixation) according to different treatment methods. Read More

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Clinical evaluation of direct anterior approach total hip arthroplasty for severe developmental dysplasia of the hip.

Sci Rep 2021 Apr 14;11(1):8105. Epub 2021 Apr 14.

Department of Orthopedics, Joint Disease and Sport Medicine Center, Xinqiao Hospital, Army Medical University, 183# Xinqiao Street, Shapingba District, Chongqing, 400037, China.

It is challenging to treat developmental dysplasia of the hip (DDH) classified Crowe III-IV using direct anterior approach (DAA) total hip arthroplasty (THA), and very little is known on its outcome. This study aimed to investigate the clinical result in this defined disorder with DAA versus posterolateral approach. Twenty-three consecutive hips with Crowe III-IV DDH who underwent DAA were retrospectively evaluated from 2016 through 2018. Read More

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Current and future perspectives of digital microscopy with fluorescence confocal microscope for prostate tissue interpretation: a narrative review.

Transl Androl Urol 2021 Mar;10(3):1569-1580

Department of Urology, University of Modena and Reggio Emilia, Modena, Italy.

Fluorescence confocal microscopy (FCM) is an optical imaging technique providing digital microscopical images of fresh tissue in a real time fashion, without conventional processing. FCM has been widely applied in several fields of dermatology, including the detection of basal cell carcinoma and of cutaneous inflammatory diseases. The aim of the paper is to provide an overview of FCM applications in the field of prostate tissue interpretation and prostate cancer (PCa) detection. Read More

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Localization of the Lumbar Plexus in the Psoas Muscle: Considerations for Avoiding Lumbar Plexus Injury during the Transpsoas Approach.

Spine Surg Relat Res 2021 20;5(2):86-90. Epub 2020 Aug 20.

Department of Orthopedic Surgery, Juntendo University, Tokyo, Japan.

Introduction: Transpsoas lumbar spine surgery is minimally invasive and has very good corrective effects. However, approach-side nerve complications delay post-operative rehabilitation. We anatomically investigated the localization of the lumbar plexus running in the psoas muscle. Read More

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Supercapsular percutaneously-assisted total hip (SuperPath) versus mini-incision posterolateral total hip arthroplasty for hip osteoarthritis: a prospective randomized controlled trial.

Ann Transl Med 2021 Mar;9(5):392

Department of Orthopaedics, West China Hospital, West China School of Medicine, Sichuan University, Chengdu, China.

Background: Supercapsular percutaneously-assisted total hip (SuperPath) arthroplasty has been proposed to be minimally invasive and tissue sparing, with possible superior postoperative outcomes compared with conventional approaches for total hip arthroplasty (THA). However, previous studies have underlined the shortcomings of conventional THA approaches, including higher dislocation, more blood loss, longer incisions, more tissue damage, and delayed postoperative rehabilitation. In the present study, we compared the short-term outcomes of unilateral THA with those of SuperPath and the mini-incision posterolateral approach (PLA) for hip osteoarthritis (OA). Read More

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Early Recovery Outcomes in Patients Undergoing Total Hip Arthroplasty Through a Posterior Approach With Modified Postoperative Precautions.

J Arthroplasty 2021 Mar 18. Epub 2021 Mar 18.

Adult Reconstruction and Joint Replacement Service, Hospital for Special Surgery, New York, NY.

Background: Recent data suggest that a modified, more lenient set of precautions after total hip arthroplasty (THA) performed through the posterolateral approach may safely allow more patient movement and exercise in the immediate postoperative period. We hypothesize that 1) patients undergoing THA given modified precautions will demonstrate a fast-track return to functional activity and 2) wrist-based activity trackers will provide valuable information on postoperative activity levels.

Methods: We prospectively enrolled patients undergoing THA. Read More

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Posterior Ankle Decompression With Os Trigonum or Stieda Process Resection in Dancers: Case Series Report and Review of the Literature.

J Foot Ankle Surg 2021 Mar 4. Epub 2021 Mar 4.

Research Statistician, Sports Medicine Division, The Micheli Center for Sports Injury Prevention, Boston Children's Hospital, Walthan, MA.

This case series reports the outcome of posterior ankle decompression and os trigonum or Stieda process resection utilizing an open posterolateral approach in 54 professional, pre-professional, and dedicated recreational dancers. All procedures were performed by a single surgeon at the same facility between 2008 and 2018. The surgical technique is described in detail. Read More

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Hoffa fracture combined with rotational dislocation of the knee joint: A novel case report.

Medicine (Baltimore) 2021 Apr;100(14):e25253

Department of Orthopedics.

Rationale: Hoffa fracture is a rare fracture confined to the coronal-plane involving femoral condyles. This occurs simultaneously with rotational dislocation of the knee joint is extremely rare. Up to now, there is no valid recommendation for the treatment of the Hoffa fracture. Read More

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Successful treatment of continuous ossification of the posterior longitudinal ligament in the lumbar spine using percutaneous transforaminal endoscopic spinal decompression: a case report.

J Int Med Res 2021 Apr;49(4):3000605211004774

Department of Orthopedic, Affiliated Hospital of Chengde Medical University, Chengde, Hebei, China.

Ossification of the posterior longitudinal ligament (OPLL) of the lumbar spine is rare relative to that of the cervical spine but is often associated with more severe symptoms. Continuous lumbar OPLL is extremely rare. We herein describe a 48-year-old Chinese woman with lumbar spinal stenosis caused by continuous OPLL. Read More

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A modified Frosch approach for posterior tibial plateau fractures: Technical note and case series.

Injury 2021 Mar 18. Epub 2021 Mar 18.

IRCCS Hospital San Raffaele, Orthopaedic Department, Milan, Italy. Electronic address:

Achieving the best possible articular congruity following a tibial plateau (TP) fracture is associated with better long-term functional outcomes; TP has an essential role in the movements of the knee joint and is well established that a not optimal reduction leads to articular instability and early osteoarthritis. In recent times, 3D reconstruction from CT scan has greatly contributed to improve the surgical treatment of these fractures since an accurate preoperative plan gives the possibility to decide the best interventional strategy before the surgical incision. Reduction of the posterior part of tibial plateau is not easily achievable with standard surgical access. Read More

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Ankle Arthroscopy: Correct Portals and Noninvasive Distraction.

Arthroscopy 2021 04;37(4):1066-1067

Southern California Orthopedic Institute, Van Nuys, California, U.S.A.. Electronic address:

Noninvasive ankle distraction technique is the standard of care for ankle arthroscopic surgery. Noninvasive distraction can be performed safely and with fewer complications when compared side-by-side with the nondistraction dorsiflexion technique. Moreover, distraction techniques allow a single surgeon to operate in the most convenient supine position and in a "hands-free" manner, with adequate space to avoid iatrogenic chondral damage. Read More

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Single level posterolateral lumbar fusion in a New Zealand White rabbit () model: Surgical anatomy, operative technique, autograft fusion rates, and perioperative care.

JOR Spine 2021 Mar 23;4(1):e1135. Epub 2020 Dec 23.

Surgical and Orthopaedic Research Laboratories, Prince of Wales Clinical School University of New South Wales Sydney, Prince of Wales Hospital Sydney New South Wales Australia.

Introduction: The posterolateral lumbar fusion (PLF) New Zealand White (NZW) () rabbit model is a long-standing surgical technique for the preclinical evaluation of materials for spinal fusion. A detailed understanding of lumbar spine anatomy and perioperative care requirements of rabbits is imperative for correct execution of the model both scientifically and ethically. This study describes the preoperative procedures and surgical techniques used in single level PLF in a NZW rabbit model as it pertains to the animal husbandry, lumbar spine anatomy, anesthesia, surgical approach, and perioperative care of rabbits in a research setting. Read More

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Effect of Postoperative Analgesic Exposure to the Cannabinoid Receptor Agonist WIN55 on Osteogenic Differentiation and Spinal Fusion in Rats.

J Bone Joint Surg Am 2021 Mar 23. Epub 2021 Mar 23.

Departments of Orthopaedic Surgery (C.Y., M.S.H., S.J., M.A.O., A.J.D., K.Y.C., J.Y., J.P., R.J.L., W.K.H., and E.L.H.) and Cell and Molecular Biology (S.R.S.), Northwestern University Feinberg School of Medicine, Chicago, Illinois.

Background: After spinal surgery and other orthopaedic procedures, most patients receive opioids for pain, leading to potential complications such as pseudarthrosis and opioid abuse associated with long-term use. As an alternative, the endocannabinoid system has been shown to have antinociceptive activity, while contributing to bone homeostasis via the CB1 and CB2 cannabinoid receptors. This study evaluates the impact of the cannabinoid receptor agonist WIN55,212-2 (WIN55) on osteogenic differentiation in vitro as well as bone regeneration and spinal fusion in a preclinical rat model. Read More

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Arthroscopic anatomy of the posterolateral corner of the knee: anatomic relations and arthroscopic approaches.

Arch Orthop Trauma Surg 2021 Mar 22. Epub 2021 Mar 22.

Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.

Introduction: Although open-surgical techniques for the reconstruction of the posterolateral corner (PLC) are well established, the use of arthroscopic procedures has recently increased. When compared with open surgical preparation, arthroscopic orientation in the PLC is challenging and anatomic relations may not be familiar. Nevertheless, a profound knowledge of anatomic key structures and possible structures at risk as well as technical variations of arthroscopic approaches are mandatory to allow a precise and safe surgical intervention. Read More

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Cementless Hemiarthroplasty for Intracapsular Femoral Neck Fractures in the Octa- and Nonagenarians.

Clin Orthop Surg 2021 Mar 8;13(1):10-17. Epub 2020 Dec 8.

Department of Traumatology and Orthopedic Surgery, IRCCS Humanitas Research Hospital, Humanitas University, Milan, Italy.

Backgroud: Current evidence supports the use of cemented hemiarthroplasty for treatment of intracapsular femoral neck fractures since it is associated with a lower risk of implant-related complications. However, many medical centers employ the cementless technique for the frail elderly population because it is faster and has lower cardiovascular risks and perioperative mortality. This observational study reports the outcomes of cementless bipolar hemiarthroplasty for intracapsular femoral neck fractures in patients aged 80 years and older. Read More

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Improvement of coronal alignment in fractional low lumbar curves with the use of anterior interbody devices.

Spine Deform 2021 Mar 19. Epub 2021 Mar 19.

Norton Leatherman Spine Center, Louisville, KY, USA.

Study Design: Retrospective chart review.

Objectives: To determine if the addition of an anterior lumbar interbody fusion (ALIF) improves the fractional curve in adult spinal deformity correction when compared to posterior surgery alone. ALIF is commonly advocated to improve lordosis and fusion in adult deformity surgery. Read More

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Periprosthetic Femur Fracture Risk: Influenced by Stem Choice, Not Surgical Approach.

J Arthroplasty 2021 Feb 23. Epub 2021 Feb 23.

Inova Mount Vernon Hospital Joint Replacement Center, Alexandria, VA; Anderson Orthopaedic Research Institute, Alexandria, VA.

Background: Periprosthetic femur fracture (PFF) remains a common reason for failure after total hip arthroplasty (THA). For over 10 years, our institution has performed both anterior approach (AA) and posterolateral (PL) approaches for primary THA with multiple stem designs. The aim of this study is to determine the 90-day relative risk of PFF with regard to approach and stem design. Read More

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February 2021

Outcomes of Total Hip Arthroplasty Via the Direct Anterior vs Alternative Approaches for Acute Femoral Neck Fractures.

Arthroplast Today 2021 Apr 7;8:92-95. Epub 2021 Mar 7.

Investigation Performed at the Department of Orthopedic Surgery, Mayo Clinic Florida Campus, Jacksonville, FL, USA.

Background: Total hip arthroplasty (THA) performed for displaced femoral neck fractures (FNF) is becoming a more frequent treatment in the active elderly population. The complication profiles associated with THA surgical approaches in the fracture setting are unclear. The purpose of this study was to compare a series of THA for FNF performed via the direct anterior (DA) approach vs alternative approaches (anterolateral and posterolateral). Read More

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What to Do When Revision Procedures Fail to Prevent Recurrent Hip Dislocation in THA? A Novel Simple Technique for Selected Patients.

Arthroplast Today 2021 Apr 7;8:89-91. Epub 2021 Mar 7.

Department of Orthopaedic Surgery, Helios ENDO-Klinik Hamburg, Hamburg, Germany.

Failure to achieve postoperative stability is disappointing for both surgeons and patients after revision total hip arthroplasty. In particular, when available revision options have been exhausted. We describe our modification of previously reported surgical techniques without revising any component in a high-risk female patient with persistent hip dislocation despite multiple cup revisions using different implants. Read More

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Mapping of Posterior Talar Dome Access Through Posteromedial versus Posterolateral Approaches.

J Orthop Trauma 2021 Mar 9. Epub 2021 Mar 9.

Department of Orthopaedic Surgery, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA Department of Orthopaedics, Phramongkutklao Hospital and College of Medicine, 315 Rajavithi Road, Tung Phayathai, Ratchathewi, Bangkok 10400, Thailand Department of Orthopaedics, Trauma and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20251 Hamburg, Germany.

Objective: This study aims to evaluate the accessible area of the talar dome via two standard posterior approaches (posteromedial; PM, and posterolateral; PL) with and without distraction.

Methods: A standard PM or PL approach was performed with and without external fixator distraction on 12 through-knee cadaveric legs (six matched-pairs). The accessible area of the talar dome was outlined and imaged in a Micro-CT scanner to achieve 3-D reconstructions of the accessible surface area. Read More

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Resection of a Lower Clival Meningioma via Posterolateral Approach: Two-Dimensional Operative Video.

J Neurol Surg B Skull Base 2021 Feb 29;82(Suppl 1):S31-S32. Epub 2020 Dec 29.

Department of Neurosurgery, Uludag University School of Medicine, Bursa, Turkey.

 This study aimed to demonstrate resection of a craniovertebral junction (CVJ) meningioma via the posterolateral approach.  The study is designed with a two-dimensional operative video.  This study is conducted at department of neurosurgery in a university hospital. Read More

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February 2021

Posterior tibial plateau fracture treatment with the new WAVE posterior proximal tibia plate: feasibility and first results.

Eur J Trauma Emerg Surg 2021 Mar 12. Epub 2021 Mar 12.

Department of Trauma Surgery, University Hospitals Leuven, Leuven, Belgium.

Introduction: Operative management of posterior tibial plateau fractures (PTPF) remains challenging. The treatment goal is to restore the alignment and articular congruence, and providing sufficient stability which allows early mobilization. The purpose of this study was to assess the feasibility and safety of the newly developed WAVE posterior proximal tibia plate. Read More

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No clinically meaningful difference in 1-year patient-reported outcomes among major approaches for primary total hip arthroplasty.

Hip Int 2021 Mar 7:1120700021992013. Epub 2021 Mar 7.

Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA.

Background: Debate continues around the most effective surgical approach for primary total hip arthroplasty (THA). This study's purpose was to compare 1-year patient-reported outcome measures (PROMs) of patients who underwent direct anterior (DA), transgluteal anterolateral (AL)/direct lateral (DL), and posterolateral (PL) approaches.

Methods: A prospective consecutive series of primary THA for osteoarthritis ( = 2,390) were performed at 5 sites within a single institution with standardised care pathways (20 surgeons). Read More

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Lateral Hind-Foot Endoscopic Anterolateral/Posterolateral (LEAP) Subtalar Arthrodesis: An Effective Minimally Invasive Technique to Achieve Subtalar Fusion and Deformity Correction.

Arthrosc Tech 2021 Feb 30;10(2):e423-e429. Epub 2021 Jan 30.

Clinique du Sport, Merignac, Merignac, Bordeaux.

Arthrodesis surgery aims to provide relief for chronic joint pain and correct limb alignment by achieving a stable union between articulating bones. The key factors to achieving sound arthrodesis is adequate debridement of arthritic cartilage and creating well-apposed bleeding subchondral bone surfaces without compromising the surrounding soft tissue envelope. Arthroscopic subtalar arthrodesis is technically demanding but provides better visualization of the articular surfaces and is safer for the surrounding soft tissues compared to the open approach. Read More

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February 2021