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Appropriateness of Cervical MRI in the Evaluation and Management of C1 Jefferson Fractures.

World Neurosurg 2022 Aug 7. Epub 2022 Aug 7.

Department of Anesthesiology, University of Florida College of Medicine, Jacksonville.

Background: Traditionally, C1 fractures have been designated as stable or unstable based on the inherent integrity of the transverse altantal ligament. The purpose of our study was to identify adult trauma patients with C1 fractures on cervical CT and evaluate whether C1-C2 alignment differed in patients with and without an associated transverse atlantal ligament injury on follow-up cervical MRI.

Materials And Methods: Adult trauma patients who suffered a C1 fracture were identified retrospectively. Read More

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Coeliac Artery Release or Sham Operation in patients suspected of the Median Arcuate Ligament Syndrome; The CARoSO study.

Eur J Vasc Endovasc Surg 2022 Aug 7. Epub 2022 Aug 7.

Department of Vascular Surgery, Medisch Spectrum Twente, Enschede, the Netherlands; Dutch Expert Centre for Gastrointestinal Ischaemia, Enschede, the Netherlands; Multi-Modality Medical Imaging Group, TechMed Centre, University of Twente, Enschede, the Netherlands. Electronic address:

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Influence of tibial plateau levelling osteotomy on the tensile forces sustained by ligaments in cranial cruciate ligament-intact canine stifles: An ex vivo pilot study.

Vet Med Sci 2022 Aug 10. Epub 2022 Aug 10.

Faculty of Veterinary Medicine, Division of Veterinary Surgery, Department of Veterinary Science, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan.

Background: Tibial plateau levelling osteotomy (TPLO) changes the anatomical tibial conformation and might alter the positional relationship of the ligaments comprising the stifle joint. As a result, it is expected to affect the tensile force of the ligaments. However, studies analyzing the details of the effect of osteotomy are limited. Read More

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Review of Meniscus Anatomy and Biomechanics.

Curr Rev Musculoskelet Med 2022 Aug 10. Epub 2022 Aug 10.

Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W Harrison St., Chicago, IL, 60612, USA.

Purpose Of Review: Anatomic repair of meniscal pathology is critical for restoring native joint biomechanics and kinematics for patients who suffer from meniscal tears. The purpose of this review was to summarize the pertinent anatomy, biomechanics, and kinematics of the meniscus to guide surgeons during meniscal repair procedures.

Recent Findings: Over the past decade, there has been a growing trend to save the meniscus whenever possible. Read More

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ACL stump and ACL femoral landmarks are equally reliable in ACL reconstruction for assisting ACL femoral tunnel positioning.

Knee Surg Sports Traumatol Arthrosc 2022 Aug 10. Epub 2022 Aug 10.

Department of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, 410008, Hunan, China.

Purpose: This study aimed to comparatively evaluate the accuracy of femoral tunnel positioning after anatomic single-bundle anterior cruciate ligament (ACL) reconstruction performed with the remnant preservation (RP) technique versus the non-remnant preservation (NRP) technique.

Methods: A retrospective review of 145 patients who underwent ACL reconstruction from May 2020 to May 2022 were performed in this single-surgeon study. A total of 120 patients met the inclusion criteria and were allocated into two groups according to the surgical technique (i. Read More

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Mitochondrial Homeostasis and Mast Cells in Experimental Hepatic Ischemia-Reperfusion Injury of Rats.

Turk J Gastroenterol 2022 Aug 10. Epub 2022 Aug 10.

Department of Cardiovascular Surgery, Sivas Cumhuriyet University Faculty of Medicine, Sivas, Turkey.

Background: Ischemia-reperfusion injury is a histopathological event and is an important cause of morbidity and mortality after hepa- tobiliary surgery. We aimed to investigate the protective effect of uridine on hepatic ischemia-reperfusion injury in rats.

Methods: The animals were divided into 4 groups (n = 8): group I (control), group II: ischemia-reperfusion (30 minutes ischemia and 120 minutes reperfusion), group III: ischemia-reperfusion+uridine (at the beginning of reperfusion), and group IV: ischemia-reperfu- sion + uridine (5 minutes before ischemia-reperfusion). Read More

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Epithelioid Trophoblastic Tumor Presenting as an Adnexal Mass: Report of a Diagnostically Challenging Case.

Int J Surg Pathol 2022 Aug 9:10668969221117983. Epub 2022 Aug 9.

Department of Pathology & Immunology, 3989Baylor College of Medicine, Houston, TX, USA.

Epithelioid trophoblastic tumor (ETT) is a rare neoplasm derived from chorionic intermediate trophoblast cells, representing less than 2% of all gestational trophoblastic neoplasms. Classically, ETT presents as a uterine mass in women of reproductive age following a term pregnancy. The time from pregnancy to tumor development varies from months to several years. Read More

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Functional Outcome of Arthroscopic Debridement of Mucoid Degeneration of the Anterior Cruciate Ligament.

J Nepal Health Res Counc 2022 Jun 2;20(1):225-228. Epub 2022 Jun 2.

Department of Orthopaedics and Trauma Surgery, National Academy of Medical Sciences, National Trauma Center, Kathmandu, Nepal.

Background: Mucoid degeneration of the anterior cruciate ligament is a rare pathological condition. This is a condition where the anterior cruciate ligament becomes bulky and seems like a celery stalk appearance. The most common symptom is a pain in the posterior aspect of the knee and consistent clinical finding is a mechanical block to an extension of the knee. Read More

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Immediate Autotransplantation of Molars with Closed Apex.

J Contemp Dent Pract 2022 Apr 1;23(4):453-459. Epub 2022 Apr 1.

Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, Italy.

Aim: The aim of this study was to evaluate clinical features that might be related to success rates of autotransplantation of molars with complete root formation.

Materials And Methods: A group of 60 patients with completely formed third molars autotransplanted to a different molar socket was followed for a medium period of 5 years and 5 months. Extreme care was used in order to preserve the vitality of the periodontal ligament cells. Read More

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Value of clinical tests in diagnosing anterior cruciate ligament injuries: A systematic review and meta-analysis.

Medicine (Baltimore) 2022 Aug;101(31):e29263

Department of Physical Education, School of Fundamental Sciences, Shandong Institute of Petroleum and Chemical Technology, Dongying, China.

Objectives: This study compared 4 clinical tests with reference to magnetic resonance imaging and arthroscopic visualization to comprehensively evaluate their diagnostic value for anterior cruciate ligament injuries.

Methods: We systematically searched 10 electronic databases from January 1, 2010, to May 1, 2021. Two reviewers collected data in accordance with the Preferred Reporting Item for Systematic Reviews and Meta-Analyses 2020 guidelines. Read More

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Rare case of upper gastrointestinal hemorrhage due to accessory spleen: A case report.

Medicine (Baltimore) 2022 Aug;101(31):e29636

Department of Nephrology, Suining Central Hospital, Suining, Sichuan Province, China.

Rationale: Upper gastrointestinal hemorrhage (UGIH) is defined as hemorrhage originating from the gastrointestinal tract proximal to the ligament of Treitz. The causes of UGIH include esophagitis, gastritis, peptic ulcers, Mallory-Weiss syndrome, and cancer. However, a rare cause of UGIH, such as an accessory spleen, may lead to serious complications if left untreated and can sometimes be very difficult to diagnose preoperatively. Read More

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International cooperation needed to improve national anterior cruciate ligament registries.

Knee Surg Sports Traumatol Arthrosc 2022 Aug 10. Epub 2022 Aug 10.

Laboratory of Applied Biomechanics, Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Mangiagalli 31, 20133, Milan, Italy.

Purpose: The aim of this study is to illustrate an overview of the registries currently operative in many countries to support the introduction of new prospective registries in other countries.

Methods: The authors carried out a systematic web research in July 2021 to identify national ACL registries' annual reports and scientific literature on national ACL registries. The latest annual public registry reports were collected and analyzed in this study. Read More

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Periodontal Ligament Stem Cells Reverse the High Glucose Level-Induced Inflammatory State of Macrophages.

Biomed Environ Sci 2022 Jul;35(7):674-679

School of Stomatology, Weifang Medical University, Weifang 261053, Shandong, China.

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Accelerated rehabilitation following thumb ulnar collateral ligament repair with suture tape augmentation: A case series of professional basketball players.

J Hand Ther 2022 Aug 6. Epub 2022 Aug 6.

Department of Orthopaedics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.

Study Design: Case series.

Introduction: Rehabilitation protocols following thumb metacarpophalangeal (MCP) ulnar collateral ligament (UCL) repair typically do not allow for return to sport until 12 weeks post-surgery. The potential for accelerated rehabilitation following thumb MCP UCL repair with suture tape augmentation has yet to be explored. Read More

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KOOS-Child exhibits inadequate structural validity in a cohort of paediatric patients with ACL deficiency.

Br J Sports Med 2022 Aug 9. Epub 2022 Aug 9.

Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark.

Objectives: Knee injury and Osteoarthritis Outcome Score (KOOS)-Child is a modification of the adult KOOS aiming to evaluate knee injury, including ACL deficiency. However, the measurement properties of KOOS-Child have not been assessed in a cohort of children with ACL deficiency. We aimed to study the structure of KOOS-Child using modern test theory models (Rasch analysis and confirmatory factor analysis (CFA)). Read More

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Impact of preoperative varus on ankle replacement survival.

Orthop Traumatol Surg Res 2022 Aug 6:103390. Epub 2022 Aug 6.

Faculté de Médecine de Tours, 37032 Tours cedex 1, France; Service de Chirurgie Orthopédique et Traumatologique, CHRU Tours, 37044 Tours cedex 9, France. Electronic address:

Introduction: The severity of a foot or ankle deformity is a major prognostic factor for the success of ankle replacement. Varus deformity is at once the most arthrogenic and the most frequent.

Hypothesis: The severity of preoperative varus is a negative factor for ankle replacement survival. Read More

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Size Comparison of the Cadaveric Anterior Cruciate Ligament Midsubstance Cross-Sectional Area and the Cross-Sectional Area of Semitendinosus Double-Bundle Anterior Cruciate Ligament Reconstruction Autografts in Surgery.

J Knee Surg 2022 Aug 9. Epub 2022 Aug 9.

Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan.

The purpose of this study was to compare the cadaveric midsubstance cross-sectional anterior cruciate ligament (ACL) area and the cross-sectional semitendinosus (ST) double-bundle ACL autograft area in surgery. Thirty-nine nonpaired formalin-fixed cadaveric knees and 39 subjects undergoing ST double-bundle ACL reconstruction were included in this study. After soft tissue resection, cadaveric knees were flexed at 90 degrees, and the tangential line of the femoral posterior condyles was marked and sliced on the ACL midsubstance. Read More

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Impact of Resolvin D1 on the inflammatory phenotype of periodontal ligament cell response to hypoxia.

J Periodontal Res 2022 Aug 9. Epub 2022 Aug 9.

School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China.

Objective: Periodontal ligament cells (PDLCs) are critical for wound healing and regenerative capacity of periodontal diseases. Within an inflammatory periodontal pocket, a hypoxic environment can aggravate periodontal inflammation, where PDLCs response to the inflammation would change. Resolvin D1 (RvD1) is an endogenous lipid mediator, which can impact intracellular inflammatory pathways of periodontal/oral cells and periodontal regeneration. Read More

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Stener-like lesion of the superficial medial collateral ligament of the knee: An injury not to miss!

Am J Phys Med Rehabil 2022 Aug 6. Epub 2022 Aug 6.

Department of Orthopedic Surgery, Aspetar Orthopedic and Sports Medicine Hospital, Doha, Qatar.

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A Psychological Support Intervention to Help Injured Athletes "Get Back in the Game": Design and Development Study.

JMIR Form Res 2022 Aug 9;6(8):e28851. Epub 2022 Aug 9.

Unit of Physiotherapy, Department of Health, Medicine and Caring Science, Linköping University, Linköping, Sweden.

Background: After a serious knee injury, up to half of athletes do not return to competitive sport, despite recovering sufficient physical function. Athletes often desire psychological support for the return to sport, but rehabilitation clinicians feel ill-equipped to deliver adequate support.

Objective: We aimed to design and develop an internet-delivered psychological support program for athletes recovering from knee ligament surgery. Read More

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Ultrasonography: an interesting imaging method for ligament assessment during the acute phase of closed elbow injuries.

J Med Ultrason (2001) 2022 Aug 9. Epub 2022 Aug 9.

Service d'Imagerie Ostéoarticulaire, Centre Hospitalier Universitaire de Toulouse, Allée Jean Dausset, 31300, Toulouse, France.

Purpose: To evaluate whether ultrasonography can be used to explore the medial and lateral ligament structures during the acute phase of a closed elbow injury.

Methods: A single-center, prospective study performed between December 2019 and June 2020, including patients who suffered a radial head fracture or elbow dislocation. Two radiologists did a blinded analysis using ultrasonography of visibility, injury grade, and presence of bone avulsion for the radial collateral ligament (RCL), lateral ulnar collateral ligament (LUCL), annular ligament (AL), and anterior (MCLant) and posterior bundles (MCLpost) of the medial collateral ligament. Read More

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Comparison of Unilateral Knee Arthroplasty with High Tibial Osteotomy in Surgical Treatment of Medial Knee Osteoarthritis.

Arch Iran Med 2022 May 1;25(5):324-328. Epub 2022 May 1.

Department of Orthopedics and Traumatology, Faculty of Medicine, Bülent Ecevit University, Zonguldak, Turkey.

Background: High tibial osteotomy (HTO) and unicondylar knee arthroplasty (UKA) are two procedures of choice in moderate medial-sided knee osteoarthritis. In this study, we aimed to compare the outcomes of patients undergoing either unilateral knee arthroplasty or open-wedge HTO both clinically and radiologically.

Methods: Clinical records of 105 patients treated surgically with either medial unilateral knee arthroplasty or high tibial osteotomies were reviewed. Read More

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'I was young, I wanted to return to sport, and re-ruptured my ACL' - young active female patients' voices on the experience of sustaining an ACL re-rupture, a qualitative study.

BMC Musculoskelet Disord 2022 Aug 9;23(1):760. Epub 2022 Aug 9.

SportRehab Sports Medicine Clinic, Gothenburg, Sweden.

Background: Despite anterior cruciate ligament (ACL) re-ruptures being common, research on patient experiences after knee trauma has primarily focused on the time after primary ACL reconstruction. Integrating qualitative research and patient experiences can facilitate researchers and clinicians in understanding the burden of an ACL re-rupture. The aim of the study was to explore the experiences of an ACL re-rupture journey in young active females aiming to return to knee-strenuous sports after primary ACL reconstruction. Read More

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Effects of modified trans-tibial versus trans-portal technique on stress patterns around the femoral tunnel in anatomical single-bundle ACL reconstruction with different knee flexion angles using finite element analysis.

BMC Musculoskelet Disord 2022 Aug 8;23(1):759. Epub 2022 Aug 8.

Department of Orthopedic Surgery, Hallym University Dongtan Sacred Heart Hospital, 7, Keunjaebong-gil, Hwaseong, Gyeonggi-do, Republic of Korea.

Background: It is unclear whether different anterior cruciate ligament (ACL) graft trajectories in the distal femur would have different effects on stress generated within the distal femur around the femoral tunnel during knee motion. Thus, the purpose of this study was to determine differences in stress patterns around the femoral tunnel created by trans-portal (TP) vs. modified trans-tibial (TT) technique in anatomical ACL reconstruction at different knee flexion angles. Read More

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Mechanical Factors Contributing to Altered Knee Extension Moment during Gait after ACL Reconstruction: A Longitudinal Analysis.

Med Sci Sports Exerc 2022 Aug 6. Epub 2022 Aug 6.

School of Kinesiology, University of Michigan, Ann Arbor, MI.

Purpose: To comprehensively examine the extent to which knee flexion angle at initial contact, peak knee flexion angle, and vertical ground reaction force (vGRF) contribute to knee extension moments during gait in individuals with anterior cruciate ligament (ACL) reconstruction.

Methods: Overground gait biomechanics were evaluated in twenty-six participants with ACL reconstruction at three timepoints (about 2 months, 4 months, and 6 months after the surgery). Knee flexion angle at initial contact, peak knee flexion angle, peak vGRF, and peak knee extension moment were calculated for each limb during the early stance phase of gait for all three timepoints. Read More

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Bone-Patellar Tendon-Bone Autograft Harvest Prolongs Extensor Latency During Gait Two Years After ACLR.

Med Sci Sports Exerc 2022 Aug 5. Epub 2022 Aug 5.

Department of Biomedical Engineering, University of Delaware, Newark, DE.

Purpose: Bone-patellar tendon-bone (BPTB) graft harvest for anterior cruciate ligament reconstruction (ACLR) alters patellar tendon properties which inflict poor quadriceps neuromuscular function. BPTB autografts are associated with higher rates of post-traumatic osteoarthritis which in turn is associated with pathological gait. The purpose of this study was to investigate the latency between the time of peak quadriceps activity and peak knee flexion moment during gait, between those with BPTB grafts (n = 23) and other graft types (hamstring autograft or allografts [n = 54]), 5 ± 2 months and 2-years (25 ± 3 months) following ACLR. Read More

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MRI study of the cruciate ligaments and menisco-femoral ligaments of the knee.

Musculoskelet Surg 2022 Aug 8. Epub 2022 Aug 8.

School of Medicine, University CEU - San Pablo, Campus de Montepríncipe, Madrid, Spain.

Purpose: It has been argued that the meniscus-femoral ligaments disappear with age. We therefore analyzed the presence of the meniscus-femoral ligaments, in MRI.

Materials And Methods: We measured the PCL, ACL and MFL, noting their presence or absence in 120 Knee MRIs, 51 in women and 69 in men. Read More

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Financial Burden of Pediatric Anterior Cruciate Ligament Reconstruction.

J Pediatr Orthop 2022 Aug 8. Epub 2022 Aug 8.

Department of Orthopaedics, The Johns Hopkins University, Baltimore, MD.

Background: High costs and lack of price transparency for common pediatric orthopaedic procedures create financial burden for patients. We assessed (1) how patient medical debt after anterior cruciate ligament reconstruction (ACLR) correlates with health insurance type; and (2) factors associated with patient financial burden and worry after ACLR.

Methods: We reviewed records of 122 patients aged below 18 years who underwent ACLR at our US academic hospital from 2016 to 2020. Read More

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Length Changes in the Interosseous Membrane During Forearm Rotation: A 3-Dimensional Study In Vivo.

J Hand Surg Am 2022 Aug 5. Epub 2022 Aug 5.

Department of Hand Surgery, Affiliated Hospital of Nantong University, College of Medicine, University of Nantong, Nantong, China. Electronic address:

Purpose: The length change of the interosseous membrane (IOM) during forearm rotation has not been fully studied. To explore the meaning of length change in the distal oblique band (DOB), the distal accessory band (DAB), and the proximal, middle, and distal parts of the central band (CBP, CBM, and CBD, respectively), we investigated the length change in these ligaments at maximum pronation, 45° of pronation, neutral position, 45° of supination, and maximum supination in vivo.

Methods: The images of the right forearms from 6 healthy volunteers were obtained by computed tomography scanning at the 5 above-mentioned rotation positions. Read More

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Editorial Commentary: Recovery After Anterior Cruciate Ligament Reconstruction Is Optimal About 85% of the Time.

Arthroscopy 2022 Aug;38(8):2491-2492

Mammoth Orthopedic Institute.

Recovery after anterior cruciate ligament reconstruction is optimal about 85% of the time. Revision surgery, psychiatric history, preoperative chronic knee pain, and subsequent knee injury are associated with suboptimal recovery patterns. Sophisticated growth models can analyze patient recovery trajectories. Read More

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