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Knee to Wall

Yuanjun Teng, Xiaohui Zhang, Chongwen Ma, Haosen Wu, Rui Li, Hong Wang, Hua Han, Yayi Xia
INTRODUCTION: Excessive angle of the tibial tunnel may cause breakage of the posterior cortex in transtibial anatomic posterior cruciate ligament (PCL) reconstruction. However, a few studies have determined the permissible maximum angle of the tibial tunnel. The purpose of this study was to determine the permissible maximum angle of the tibial tunnel relative to the tibial plateau in transtibial anatomic PCL reconstruction and characterize the anatomic parameters of the tibial PCL attachment position...
December 8, 2018: Archives of Orthopaedic and Trauma Surgery
Hisanori Muramatsu, Keishi Umino, Hiroko Masuda, Fujio Ishizawa, Yukiko Sugano, Katsuya Honda
Cardiac rupture by blunt chest trauma is commonly seen after motor vehicle accidents and falls; however, it is rarely caused by a blow to the chest. We herein report an autopsy case of a high school boy who sustained severe right ventricular rupture by only one knee kick to the chest during a quarrel. He was hospitalized and developed cardiopulmonary arrest. Emergency surgery was performed, but the patient died. The autopsy revealed no external severe trauma or deformation, but the side wall of the right ventricle contained a large V-shaped laceration...
November 21, 2018: Journal of Forensic Sciences
Michael A Bergen, Kevin C Wall, Charles Y Kim, Grant E Garrigues
BACKGROUND: Left common iliac vein (LCIV) compression by the right or left common iliac artery (RCIA, LCIA) is known to cause venous thromboembolism (VTE), but the extent to which occult LCIV compression synergizes with lower extremity orthopedic surgery is unknown. We hypothesize that occult LCIV compression is associated with increased VTE risk following total hip or knee arthroplasty (THA, TKA). METHODS: This case-control study involves all patients at our institution who underwent primary or revision THA or TKA from 2009 to 2017 who had computed tomography or magnetic resonance imaging of the abdomen or pelvis available preoperatively...
October 29, 2018: Journal of Arthroplasty
Barak Haviv, Mohamed Kittani, Lee Yaari, Ehud Rath, Snir Heller, Shai Shemesh, Mustafa Yassin
PURPOSE: To evaluate the progressive changes in the morphology of traumatic ruptures of the anterior cruciate ligament (ACL) over time. A secondary objective was evaluating their correlation with meniscal tears or chondral lesions. METHODS: The study included one hundred and one patients who underwent ACL reconstruction surgery of the knee after a definite date of injury. The torn ACL remnant morphological pattern was assessed and classified during arthroscopy. A correlation analysis was performed between the pathological features of the remnant and the time length from injury...
November 14, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Thomas G Baboolal, Alam Khalil-Khan, Anthony A Theodorides, Owen Wall, Elena Jones, Dennis McGonagle
BACKGROUND: Mesenchymal stem cells (MSCs) have emerged as a promising candidate for tissue regeneration and restoration of intra-articular structures such as cartilage, ligaments, and menisci. However, the routine use of MSCs is limited in part by their low numbers and the need for methods and procedures outside of the joint or surgical field. PURPOSE: To demonstrate feasibility of a technique in which minimally manipulated synovial MSCs can be mobilized during knee arthroscopy, thereby showing proof of concept for the future evaluation and clinical use of native joint resident MSCs in single-stage joint repair strategies...
December 2018: American Journal of Sports Medicine
Jackie Knee, Trent Sumner, Zaida Adriano, David Berendes, Ellen de Bruijn, Wolf-Peter Schmidt, Rassul Nalá, Oliver Cumming, Joe Brown
BACKGROUND: Enteric infections are common where public health infrastructure is lacking. This study assesses risk factors for a range of enteric infections among children living in low-income, unplanned communities of urban Maputo, Mozambique. METHODS & FINDINGS: We conducted a cross-sectional survey in 17 neighborhoods of Maputo to assess the prevalence of reported diarrheal illness and laboratory-confirmed enteric infections in children. We collected stool from children aged 1-48 months, independent of reported symptoms, for molecular detection of 15 common enteric pathogens by multiplex RT-PCR...
November 2018: PLoS Neglected Tropical Diseases
Tomohiro Tomihara, Yusuke Hashimoto, Masatoshi Taniuchi, Junsei Takigami, Shinji Takahashi, Yohei Nishida, Nagakazu Shimada
PURPOSE: The purpose of this study was to compare femoral graft bending angle between patients with femoral tunnel reamed at less than 80° of knee flexion and those with 80° and above in anatomical anterior cruciate ligament (ACL) reconstruction using modified transtibial technique. METHODS: Forty-eight patients who underwent ACL reconstruction using bone-patellar-tendon-bone autograft in modified transtibial technique and CT scan at 1 week postoperatively were included in this study...
October 9, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Charlie Bowen, Kristian Weaver, Nicola Relph, Matt Greig
CONTEXT: Training exposure has been associated with injury epidemiology in elite youth soccer, where lower limb musculoskeletal screening is commonly used to highlight injury risk. However, there has been little consideration of the relationship between lower limb screening and the loading response to soccer activities. OBJECTIVE: To quantify the efficacy of using screening tests to predict the loading elicited in soccer-specific activities, and to develop a hierarchical ordering of musculoskeletal screening tests to identify test redundancy and inform practice...
October 9, 2018: Journal of Sport Rehabilitation
Atsushi Sakaoka, Junko Souba, Serge D Rousselle, Takato Matsuda, Armando Tellez, Hitomi Hagiwara, Kasuke Nagano, Masako Tasaki
Nitinol stents are widely used for the treatment of peripheral arterial diseases in lower extremity arteries and have shown different clinical outcomes depending on implanted arterial segments. We aimed to compare histopathological responses to nitinol stents in femoral artery (FA) with those in femoropopliteal artery (FPA), which is markedly bended during knee flexion. A single nitinol stent was implanted in FA and FPA of 21 domestic swine. The stented vessels were angiographically assessed and then harvested for histopathology at 1 and 3 months after implantation...
October 3, 2018: Toxicologic Pathology
Reetadyuti Mukhopadhyay, Nishith Shah, Rohan Vakta, Jaymin Bhatt
PURPOSE: Anterior cruciate ligament (ACL) repair was first described in the mid 1900's. However, due to poorly selected patients led to unsatisfactory early results. We aim to study the outcome of ACL repair in a carefully selected cohort. METHODS: Thirteen consecutive patients of acute Type 1 (proximal ACL avulsion) were treated with arthroscopic ACL repair using a suture pull out technique. At the latest follow-up the patients were evaluated for Lysholm score, KT-1000 measurement and clinical assessment for any laxity...
September 6, 2018: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
Jessica L Bloom, Jeffrey R Darst, Lori Prok, Jennifer B Soep
BACKGROUND: Henoch-Schonlein Purpura (HSP) is one of the most common vasculitides of childhood, with 10-20 cases per 100,000 children. It frequently occurs following an infectious trigger and involves IgA and C3 deposition in small vessel walls. HSP is characterized by palpable purpura plus IgA deposition on biopsy, arthritis/arthralgia, renal involvement (hematuria and/or proteinuria), and/or abdominal pain. It is not generally recognized as a cause of dilated coronary arteries. CASE PRESENTATION: We describe the first reported case of HSP presenting with dilated coronary arteries...
September 4, 2018: Pediatric Rheumatology Online Journal
Aspen C Terry, Mark D Thelen, Michael Crowell, Donald L Goss
Background: The Musculoskeletal Readiness Screening Tool (MRST) was developed in an effort to consistently predict injury among military personnel. Current injury prediction tools have not consistently predicted injury in this population. The MRST is comprised of the weight bearing forward lunge, modified deep squat, closed kinetic chain upper extremity stability test (CKCUEST), forward step down with eyes closed, stationary tuck jump, unilateral wall sit hold, and subjective, individual perceived level of risk for injury...
August 2018: International Journal of Sports Physical Therapy
F F A IJpma, T M van Gulik
The Anatomy Lesson of Willem Röell, painted by Cornelis Troost in 1728, should be considered a group portrait of the Amsterdam Guild of Surgeons. Professor Röell, praelector anatomiae (lecturer in anatomy) of the Surgeons' Guild, was portrayed while performing an anatomical dissection of the knee joint in the corpse of an elderly man. The three surgeons in the painting, dressed in fashionable suits, held important positions as governors of the Guild. The Guild assistant, holding a box containing surgical instruments, is standing in the background (left corner)...
September 2018: British Journal of Surgery
Sung-Hwan Kim, Sung-Jae Kim, Chong Hyuk Choi, Dohyun Kim, Min Jung
There has been no previous study using three-dimensional (3D) measurement on femoral tunnel characteristics according to the combined influence of various flexion angles of knee and transverse drill angles in single-bundle ACL reconstruction with transportal technique. The purpose of this study was to determine optimal condition of knee flexion angle and transverse drill angle to create secure femoral tunnel in single-bundle ACL reconstruction with transportal technique considering tunnel length, tunnel wall breakage, and graft bending angle...
2018: BioMed Research International
Jun Xiao, Yong Hu, Kai-Ying Tang, Tahsin Tarik Torsha, Yu Xu, Zhi-Han Li, Xiang-Zhao Li, Zhan-Jun Shi
PURPOSE: Synovial cyst of knee cruciate ligament (SCKCL) is a rare condition but can cause severe knee pain. The understanding of its etiology is relatively poor. This current study aimed to elucidate the pathogenesis of SCKCL based on a series of histo- and cytopathological examination. METHODS: Ten SCKCL patients who underwent arthroscopy were enrolled, among five patients claimed past knee injury. Hematoxylin & eosin staining was conducted to the cyst wall tissue sections and Papanicolaou staining to the cyst fluid smear...
August 8, 2018: International Orthopaedics
Freddie H Fu, Kanto Nagai
The anterior cruciate ligament (ACL) is a dynamic structure composed of distinct bundles that function synergistically to facilitate normal knee kinematics in concert with bony morphology. Characterized by individual uniqueness, the ACL is inherently subject to both anatomic and morphological variations as well as physiologic aging. No locus on the lateral wall of the intercondylar notch is truly isometric through full range of motion, suggesting the ACL is a dynamic structure. Future studies should explore dynamic ACL behavior in vivo...
August 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Brian Forsythe, Drew Lansdown, William A Zuke, Nikhil N Verma, Brian J Cole, Bernard R Bach, Nozomu Inoue
PURPOSE: The purpose of this study was to (1) map the length changes of the medial wall of the lateral femoral condyle (MWLFC) with respect to various points about the tibial anterior cruciate ligament (ACL) footprint to determine the area that demonstrates the least amount of length change through full range of motion and (2) to identify a range of flexion that would be favorable for graft tensioning. METHODS: Six fresh-frozen cadaveric knees were obtained from screened individuals with no prior history of arthritis, cancer, surgery, or any ligamentous knee injury...
August 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Kohei Kawaguchi, Hiroshi Inui, Shuji Taketomi, Ryota Yamagami, Keiu Nakazato, Nobuyuki Shirakawa, Sakae Tanaka
PURPOSE: Mobile-bearing Oxford unicompartmental knee arthroplasty has been used widely and successfully; however, there is no previous research on the intraoperative bearing movement. The purpose of this study was to characterise intraoperative bearing movement and investigate whether bearing movement relates to component positions, bearing size, intraoperative rotational kinematics and clinical results. METHODS: A trial tibial component, which was scaled every 2 mm, was used to measure the intraoperative movement of the mobile bearings...
July 21, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Takanori Iriuchishima, Bunsei Goto, Tatsumasa Okano, Keinosuke Ryu, Freddie H Fu
PURPOSE: The purpose of this study was to reveal the correlation between femoral tunnel length in anatomical single-bundle anterior cruciate ligament (ACL) reconstruction and body size and/or knee morphology. METHODS: Thirty-one subjects undergoing anatomical single-bundle ACL reconstruction were included in this study (20 female, 11 male; median age 46, 15-63). Pre-operative height, body weight, and body mass index (BMI) were measured. In pre-operative magnetic resonance imaging, the thickness of the quadriceps tendon and the whole anterior-posterior (AP) length of the knee were measured using the sagittal slice...
July 2, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
(no author information available yet)
Blasiak A, Whyte GP, Matlak A, Brzóska R, Sadlik B. Morphologic properties of cartilage lesions in the knee arthroscopically prepared by the standard curette technique are inferior to lesions prepared by specialized chondrectomy instruments. Am J Sports Med. 2018;46(4):908-914. (Original DOI: 10.1177/0363546517745489) There is an error in the Abstract of this article. The Conclusion of the Abstract currently reads: Arthroscopic cartilage lesion preparation with SC instruments results in superior perpendicularity of surrounding cartilage walls to subchondral bone and greater consistency of debrided lesion depth, as compared with the standard debridement technique with curettes...
July 2018: American Journal of Sports Medicine
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