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https://www.readbyqxmd.com/read/28207972/anatomical-study-of-the-inferior-patellar-pole-and-patellar-tendon
#1
M Edama, I Kageyama, M Nakamura, T Kikumoto, E Nakamura, W Ito, T Takabayashi, T Inai, H Onishi
In this study, detailed investigations of the shape of the inferior patellar pole, the site of the patellar tendon attachment, and the length and course of the patellar tendon were performed with the aim of examining the anatomical factors involved in the developmental mechanism of patellar tendinitis.  The investigation examined 100 legs from 50 cadavers. The inferior patellar pole was classified into three types: Pointed, Intermediate, and Blunt. The attachment of the patellar tendon to the inferior patellar pole was classified into two types: an anterior and a posterior...
February 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28207660/predictors-of-distal-adding-on-in-thoracic-major-curves-with-ar-lumbar-modifiers
#2
Joshua S Murphy, Vidyadhar V Upasani, Burt Yaszay, Tracey P Bastrom, Carrie E Bartley, Amer Samdani, Lawrence G Lenke, Peter O Newton
STUDY DESIGN: Retrospective review of prospectively collected data. OBJECTIVE: To determine whether the last substantially touched vertebra (LSTV) is a valid lowest instrumented vertebra (LIV) for both Lenke 1 and 2 curve patterns with AR lumbar modifiers, and to identify preoperative risk factors of distal adding-on. SUMMARY OF BACKGROUND DATA: Previous studies have recommended selecting the LSTV as the LIV for Lenke 1AR curves (main thoracic curve with A lumbar modifier and L4 tilt to the right (thoracic overhang/King type IV curve)...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28185320/orientation-of-the-lateral-semicircular-canal-in-xenarthra-and-its-links-with-head-posture-and-phylogeny
#3
Florence Coutier, Lionel Hautier, Raphaël Cornette, Eli Amson, Guillaume Billet
The orientation of the semicircular canals of the inner ear in the skull of vertebrates is one of the determinants of the capacity of this system to detect a given rotational movement of the head. Past functional studies on the spatial orientation of the semicircular canals essentially focused on the lateral semicircular canal (LSC), which is supposedly held close to horizontal during rest and/or alert behaviors. However, they generally investigated this feature in only a few and distantly related taxa. Based on 3D-models reconstructed from µCT-scans of skulls, we examined the diversity of orientations of the LSC within one of the four major clades of placental mammals, that is, the superorder Xenarthra, with a data set that includes almost all extant genera and two extinct taxa...
February 10, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28165592/selection-of-a-surgical-approach-for-total-hip-arthroplasty-according-to-the-depth-to-the-surgical-site
#4
Takaaki Ohmori, Tamon Kabata, Toru Maeda, Yoshitomo Kajino, Tadashi Taga, Kazuhiro Hasegawa, Daisuke Inoue, Takashi Yamamoto, Tomoharu Takagi, Hiroyuki Tsuchiya
BACKGROUND: The surgical depths of approaches for total hip arthroplasty (THA) have not been reported previously. In this study, we investigate the relationships between the distances to the centre of the femoral head in different approaches and body mass index (BMI). METHODS: The study included patients with normal hip joints who presented to our hospital. We used the pelvic coordinate system relative to the anterior pelvic plane and the femur coordinate system relative to the posterior condylar plane...
February 4, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28161491/shoulder-and-elbow-kinematics-during-the-mallet-score-in-obstetrical-brachial-plexus-palsy
#5
Olivier Herisson, Nathalie Maurel, Amadou Diop, Morgane Le Chatelier, Adeline Cambon-Binder, Franck Fitoussi
BACKGROUND: The physical signs of obstetrical brachial plexus palsy range from temporary upper-limb dysfunction to a lifelong impairment and deformity in one arm. The aim of this study was to analyze the kinematics of the upper limb and to evaluate the contribution of glenohumeral and scapulothoracic joints of obstetrical brachial plexus palsy children. METHODS: Six children participated in this study: 2 males and 4 females with a mean age of 11.7years. Three patients had a C5, C6 lesion and 3 had a C5, C6, C7 lesion...
January 15, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28154745/transverse-expansion-and-stability-after-segmental-le-fort-i-osteotomy-versus-surgically-assisted-rapid-maxillary-expansion-a-systematic-review
#6
REVIEW
Thomas Starch-Jensen, Tue Lindberg Blæhr
OBJECTIVES: The objective of the present systematic review was to test the hypothesis of no difference in transverse skeletal and dental arch expansion and relapse after segmental Le Fort I osteotomy versus surgically assisted rapid maxillary expansion. MATERIAL AND METHODS: A MEDLINE (PubMed), Embase and Cochrane library search in combination with a hand-search of relevant journals was conducted by including human studies published in English from January 1, 2000 to June 1, 2016...
October 2016: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/28145398/assessment-of-bioelectrical-activity-of-pelvic-floor-muscles-depending-on-the-orientation-of-the-pelvis-in-menopausal-women-with-symptoms-of-stress-urinary-incontinence-continued-observational-study
#7
Kuba Ptaszkowski, Romuald Zdrojowy, Lucyna Slupska, Janusz Bartnicki, Janusz Dembowski, Tomasz Halski, Malgorzata Paprocka-Borowicz
BACKGROUND: Menopausal women often experience the prolapse of the uterus, bladder and rectum resulting from the failure and weakening of the pelvic floor muscles (PFM). Strengthening of the PFM through the standard exercises is recognized as an effective way of preventive measures and conservative treatment of the symptoms listed above, but still need to be improved. AIM: The goal was the objective assessment of resting and functional bioelectrical activity of pelvic floor muscle (PFM) in women during menopause and its comparison in three different positions of the pelvis: anterior pelvic tilt - position 1 (P1) posterior pelvic tilt - position 2 (P2) and neutral pelvic tilt - position 3 (P3)...
January 30, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28137249/multiplanar-evaluation-of-radiological-findings-associated-with-acetabular-dysplasia-and-investigation-of-its-prevalence-in-an-asian-population-a-ct-based-study
#8
Tomohiro Mimura, Kanji Mori, Masahiro Kitagawa, Mariko Ueki, Yuki Furuya, Taku Kawasaki, Shinji Imai
BACKGROUND: Acetabular dysplasia (AD) is a well-known cause of osteoarthritis (OA) of the hip, with its prevalence previously determined on plain radiography. The prevalence of preexisting AD was reported as 7.3% in a patient-based Asian population. Although computed tomography (CT) could evaluate AD in multiple planes, its prevalence using multiplanar CT images has not been reported. We investigated its prevalence with CT on coronal, axial, and sagittal planes and then determined if adding the axial and sagittal planes enhanced the investigation...
January 31, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28127750/standing-sagittal-alignment-of-the-whole-axial-skeleton-with-reference-to-the-gravity-line-in-humans
#9
Kazuhiro Hasegawa, Masashi Okamoto, Shun Hatsushikano, Haruka Shimoda, Masatoshi Ono, Takao Homma, Kei Watanabe
Human beings stand upright with the chain of balance beginning at the feet, progressing to the lower limbs (ankles, knees, hip joints, pelvis), each of the spinal segments, and then ending at the cranium to achieve horizontal gaze and balance using minimum muscle activity. The details of the alignment and balance of the chain, however, are not clearly understood, due to the lack of information regarding the three-dimensional (3D) orientation of all bony elements in relation to the gravity line (GL). We performed a clinical study to clarify the standing sagittal alignment of whole axial skeletons in reference to the GL using the EOS slot-scanning 3D X-ray imaging system with simultaneous force plate measurement in a healthy human population...
January 27, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28106890/assessment-of-a-new-hydrophilic-acrylic-supplementary-iol-for-sulcus-fixation-in-pseudophakic-cadaver-eyes
#10
N Reiter, L Werner, J Guan, J Li, K T Tsaousis, N Mamalis, S Srinivasan
PurposeManagement of refractive errors after cataract surgery includes spectacles or contact lens, secondary laser vision correction, intraocular lens (IOL) exchange, or piggyback lens implantation. We evaluated for the first time a single-piece hydrophilic acrylic IOL designed for supplementary sulcus fixation in postmortem pseudophakic human eyes.MethodsPseudophakic human cadaver eyes were imaged by anterior segment optical coherence tomography (AS-OCT) to assess position of the primary IOL. Eyes were prepared as per the Miyake-Apple technique...
January 20, 2017: Eye
https://www.readbyqxmd.com/read/28100024/evaluation-of-cast-re-orientation-on-a-dental-surveyor-using-three-tripod-techniques-a-survey-and-in-vitro-study
#11
Mohammed E Sayed, Idris A Busaily, Rana J Nahari, Ruaa O Hakami, Sami M Maashi, Naveen R Ramireddy
PURPOSE: To survey different educational levels (i.e., students, interns, technicians, and prosthodontic faculty) with regard to their opinions, attitudes, and adoption of three selected tripod techniques. The study will also investigate the accuracy of these techniques to reposition casts on the dental surveyor in anterio-posterior (AP) and lateral directions at both technique and educational levels. MATERIALS AND METHODS: Tripod points, scored lines, and cemented post tripod techniques were used in this study...
January 18, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28069503/wettability-gradient-on-the-elytra-in-the-aquatic-beetle-cybister-chinensis-and-its-role-in-angular-position-of-the-beetle-at-water-air-interface
#12
Mingxia Sun, Yuan Chen, Yongmei Zheng, Mingming Zhen, Chunying Shu, Zhendong Dai, Aiping Liang, Stanislav N Gorb
: The surface of the elytra in some species of aquatic beetles displays relatively low contact angles (CAs), even showing hydrophilic properties. In this study, we report on an observation that both sexes of Cybister chinensis beetle fresh elytral surface do not exhibit uniform CA, but rather a wettability gradient along the longitudinal axis in posterior direction. The wettability is very different between females and males due to the presence (female) or absence (male) of channels on the elytral surface...
January 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28067099/dynamic-rsa-for-the-evaluation-of-inducible-micromotion-of-oxford-uka-during-step-up-and-step-down-motion
#13
Kristian Horsager, Bart L Kaptein, Lone RøMer, Peter B Jørgensen, Maiken Stilling
Background and purpose - Implant inducible micromotions have been suggested to reflect the quality of the fixation interface. We investigated the usability of dynamic RSA for evaluation of inducible micromotions of the Oxford Unicompartmental Knee Arthroplasty (UKA) tibial component, and evaluated factors that have been suggested to compromise the fixation, such as fixation method, component alignment, and radiolucent lines (RLLs). Patients and methods - 15 patients (12 men) with a mean age of 69 (55-86) years, with an Oxford UKA (7 cemented), were studied after a mean time in situ of 4...
January 9, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28061916/intracranial-and-intraocular-pressure-during-various-degrees-of-head-down-tilt
#14
Karina Marshall-Goebel, Edwin Mulder, Eric Bershad, Charles Laing, Anders Eklund, Jan Malm, Claudia Stern, Jörn Rittweger
BACKGROUND: More than half of astronauts develop ophthalmic changes during long-duration spaceflight consistent with an abnormal intraocular and intracranial pressure (IOP, ICP) difference. The aim of our study was to assess IOP and ICP during head-down tilt (HDT) and the additive or attenuating effects of 1% CO2 and lower body negative pressure (LBNP). METHODS: In Experiment I, IOP and ICP were measured in nine healthy subjects after 3.5 h HDT in five conditions: -6°, -12°, and -18° HDT, -12° with 1% CO2, and -12° with -20 mmHg LBNP...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28059683/spinopelvic-sagittal-imbalance-as-a-risk-factor-for-adjacent-segment-disease-after-single-segment-posterior-lumbar-interbody-fusion
#15
Tomiya Matsumoto, Shinya Okuda, Takafumi Maeno, Tomoya Yamashita, Ryoji Yamasaki, Tsuyoshi Sugiura, Motoki Iwasaki
OBJECTIVE The importance of spinopelvic balance and its implications for clinical outcomes after spinal arthrodesis has been reported in recent studies. However, little is known about the relationship between adjacent-segment disease (ASD) after lumbar arthrodesis and spinopelvic alignment. The purpose of this study was to clarify the relationship between spinopelvic radiographic parameters and symptomatic ASD after L4-5 single-level posterior lumbar interbody fusion (PLIF). METHODS This was a retrospective 1:5 matched case-control study...
January 6, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28042977/full-can-test-mechanisms-of-a-positive-test-in-patients-with-shoulder-pain
#16
Mark K Timmons, Sevgi S Yesilyaprak, Jeff Ericksen, Lori A Michener
BACKGROUND: The full can test is theorized to produce compressive loads on the supraspinatus tendon within the subacromial space. Characterizing the width of the subacromial outlet, scapular orientation, and shoulder pain during the full can test will improve the mechanistic understanding of the positive full can test. METHODS: Cross-sectional repeated measures design. Participants with subacromial pain syndrome (n=30) were compared to a matched control group (n=30) during 2 conditions: passive support, and the full can test...
December 24, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/28042432/upper-full-arch-rehabilitation-with-sinus-by-pass-with-tilted-implants-via-tapered-threaded-expanders-in-low-density-bone-a-clinical-trial
#17
M Andreasi Bassi, C Andrisani, S Lico, Z Ormanier, C Arcuri
PURPOSE: In the present paper the use of tapered-screw bone expanders (TSBEs) is proposed, in combination with the placement of tilted implants, in close proximity to the anterior sinus wall, solving the problem of the reduced height of the alveolar bone in the sub-antral area. The Authors present a case series of full-arch rehabilitations performed with this procedure named: Tilted Implant Expansion Osteotomy (TIEO). MATERIALS AND METHODS: 12 patients (5 males and 7 females, average age 58...
April 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042117/spinopelvic-mobility-and-acetabular-component-position-for-total-hip-arthroplasty
#18
M Stefl, W Lundergan, N Heckmann, B McKnight, H Ike, R Murgai, L D Dorr
AIMS: Posterior tilt of the pelvis with sitting provides biological acetabular opening. Our goal was to study the post-operative interaction of skeletal mobility and sagittal acetabular component position. MATERIALS AND METHODS: This was a radiographic study of 160 hips (151 patients) who prospectively had lateral spinopelvic hip radiographs for skeletal and implant measurements. Intra-operative acetabular component position was determined according to the pre-operative spinal mobility...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28040875/distal-junctional-kyphosis-in-patients-with-scheuermann-s-disease-a-retrospective-radiographic-analysis
#19
Amir Ghasemi, Timo Stubig, Luigi A Nasto, Malik Ahmed, Hossein Mehdian
PURPOSE: To investigate the relationship between preoperative and postoperative spinopelvic alignment and occurrence of DJK/DJF. STUDY DESIGN/SETTING: This was a retrospective observational cohort study. PATIENT SAMPLE: The sample included 40 patients who underwent posterior correction of SK from January 2006 to December 2014. OUTCOME MEASURES: Correlation analysis between the preoperative and postoperative spinopelvic alignment parameters and development of DJK over the course of the study period were studied...
December 31, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28039353/fluoroscopy-guided-sacroiliac-intraarticular-injection-via-the-middle-portion-of-the-joint
#20
Daisuke Kurosawa, Eiichi Murakami, Toshimi Aizawa
: OBJECTIVE : Sacroiliac intraarticular injection is necessary to confirm sacroiliac joint (SIJ) pain and is usually performed via the caudal one-third portion of the joint. However, this is occasionally impossible for anatomical reasons, and the success rate is low in clinical settings. We describe a technique via the middle portion of the joint. DESIGN : Observational study. SUBJECTS : Enrolled were 69 consecutive patients (27 men and 42 women, with an average age of 53 years) in whom the middle portion of 100 joints was targeted...
December 30, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
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