Natalie Keough

Natalie Keough
Khalifa University | KU · Anatomy and Cellular Biology

PhD

About

44
Publications
9,834
Reads
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345
Citations
Additional affiliations
October 2019 - present
Khalifa University
Position
  • Professor (Assistant)
Description
  • Course director for Anatomy Research
January 2017 - September 2019
University of Pretoria
Position
  • Professor (Associate)
Description
  • Osteology to undergraduate radiology and dentistry students Human anatomy (dissection) to undergraduate Basic Medical Science students Human anatomy to undergraduate radiology students
September 2005 - December 2016
University of Pretoria
Position
  • Lecturer

Publications

Publications (44)
Article
Introduction The purpose of this study was to determine the effect of biceps tendon tenotomy on the load of the supraspinatus tendon/muscle complex during abduction of the arm from 0⁰-15⁰. Methods Eleven fresh frozen human cadaver shoulders (6 males, 5 females, age ranged 44-88 years, mean upper extremity weight 2.96 +0.56 kg) were included. The s...
Article
Full-text available
The thoracolumbar junction is often associated with traumatic injuries, due to its biomechanical instability. Reasons for this instability are currently still under debate; however, contributing factors such as the rapid change in spinal curvature and facet orientation from the thoracic to lumbar transition have been implicated. Normally, the super...
Article
Full-text available
Purpose Minimally invasive surgery in the posterior knee is high risk for iatrogenic injury to popliteal neurovascular neurovasculature structures. This study aimed to use reliable landmarks to define safe zones for arthroscopic portal placement into the posterior knee. Methods Distances were measured between bony landmarks and neurovascular struc...
Article
Full-text available
Background Higher posterior tibial slope (PTS) is a risk factor for anterior cruciate ligament (ACL) injury in men and women. The individual contribution of the lateral (LPTS) and medial (MPTS) slope has not yet been investigated. Purpose To determine whether either the LPTS or the MPTS is an independent risk factor for ACL injury, and to determin...
Article
Full-text available
Purpose: The purpose of this study was to quantify the posterior horn meniscal slope and determine its contribution to the reduction in posterior tibial slope. Methods: Patients aged between 16 and 60 years and had intact menisci with no evidence of previous injury or surgery were included. Patients with radiological evidence of osteoarthritis G...
Article
Full-text available
PurposeThe vertebral triangle (VT) located in the root of the neck most commonly contains the vertebral artery (VA), cervical sympathetic chain and certain roots of the brachial plexus. Although other structures have been reported, few studies have reported on the overall content of this space. Based on the current literature, there is a general pa...
Article
Full-text available
Trauma, corticosteroid therapy and metabolic diseases are well established aetiologies of humeral head osteonecrosis; however, there is increasing evidence that arthroscopic rotator cuff surgery may be another possible cause. One of the reasons is that there may be inadvertent damage to the arterial blood supply to the humeral head during surgical...
Article
The intercostobrachial nerve (ICBN) is commonly defined as a purely sensory nerve supplying the skin of the lateral chest wall, axilla, and medial arm. However, numerous branching patterns and distributions, including motor, have been reported. This report describes an uncommon variant of the right ICBN observed in both an 86-year-old white female...
Article
Full-text available
Purpose The purpose of this study was to measure slope of both the medial and lateral posterior horn of the meniscus, and its contribution to the overall resulting posterior tibial slope (bone and meniscus combined slope) in ACL-intact (ACLI) and ACL-deficient (ACLD) knees. Methods MR images of patients with intact menisci aged between 16-60 years...
Article
Full-text available
Purpose The common peroneal nerve (CPN) can be injured during fibular-based posterolateral reconstructions due to its close relationship to the neck of the fibula. Therefore, the purpose of this study was to observe the course of the CPN and its branches around the fibular head and neck and quantify the position in relation to relevant bony landmar...
Article
Full-text available
Surgical access to the posterior knee poses a high-risk for neurovascular damage. The study aimed to define the popliteal fossa by reliable bony landmarks and comprehensively mapping the neurovascular structures for application in posterior knee surgery. Forty-five (20 male, 25 female) embalmed adult cadaveric knees were included. The position of t...
Article
Introduction: We determine the location of the common facial vein (CFV) in a sample of neonates and assess the safety of this vein as an alternative access route for a central venous catheter (CVC). Materials and methods: We dissected both the left and right sides of the neck region of 24 neonatal, formalin-fixed cadavers, exposing the underlyin...
Article
Introduction: As a result of the increased utilization of neurosurgical arthroscopic techniques, investigations into population and sex specific trends of anatomical considerations have become increasingly important. This study aimed to investigate and describe aspects of the neuro-anatomical morphometry of lumbar spines in a cadaveric and MRI (Ma...
Article
Full-text available
Background: The purpose of this study was to investigate the blood supply of the humeral head (HH) originating from the anterior (ACHA) and posterior circumflex humeral arteries (PCHA). Methods: Formalin preserved specimens were used to measure ACHA length, ACHA length in the bicipital groove (BG), the length of the ascending branch of the ACHA,...
Article
Full-text available
The lingual frenulum is recognized as having the potential to limit tongue mobility, which may lead to difficulties with breastfeeding in some infants. There is extensive variation between individuals in the appearance of the lingual frenulum but an ambiguous relationship between frenulum appearance and functional limitation. An increasing number o...
Article
Surface anatomy is considered a fundamental part of anatomy curricula and clinical practice. Recent studies have reappraised surface anatomy using CT, but the adolescent age group has yet to be appraised. Sixty adolescent thoracoabdominal CT scans (aged 12–18 years) were examined. The surface anatomy of the central veins, cardiac apex, diaphragmati...
Article
Full-text available
PurposeThe purpose of this study was to perform a systematic review and meta-analysis comparing single- and double-row biomechanical studies to evaluate load to failure, mode of failure and gap formation. Materials and methodsA systematic review of MEDLINE, Embase, Scopus and Google Scholar was performed from 1990 through 2016. The inclusion criter...
Article
Background: The purpose of this study was to evaluate the reliability and reproducibility of three commonly used radiographic measures for plantar surface angles. Methods: The calcaneal angle (CA), calcaneal pitch angle (CPA), and length-height index (LHI) was measured by three independent examiners on two occasions on lateral foot radiographs....
Article
Human cadaveric specimens commonly serve as mechanical models and as biological tissue donors in basic biomechanical research. Although these models are used to explain both in vitro and in vivo behavior, the question still remains whether the specimens employed reflect the normal in vivo situation. The mechanical properties of fresh-frozen or pres...
Conference Paper
Bone mineral density (BMD) is a potentially population specific material property influencing Orthopaedic surgery. This study aimed to determine BMD values of healthy/normal lumbar spines to further define and investigate possible population variation/s. 82 CT-scans from Steve Biko Academic Hospital (Pretoria) were used, of which 36 were females (...
Article
Full-text available
The rotator cuff (RC) insertions according to most anatomical texts are described as being separate from one another. However, clear fusion of the RC tendon fibres exists with prior studies showing this interdigitation forming a common, continuous insertion onto and around the lesser and greater tubercles (LT and GT) of the humerus. Current surgica...
Article
Decomposition studies often use pigs as proxies for human cadavers. However, differences in decomposition sequences/rates relative to humans have not been scientifically examined. Descriptions of five main decomposition stages (humans) were developed and refined by Galloway and later by Megyesi. However, whether these changes/processes are alike in...
Article
Introduction: Surface landmarks or planes taught in anatomy curricula derive from standard anatomical textbooks. Although many surface landmarks are valid, clear age, sex and population differences exist. We reappraise the thoracic surface anatomy of black South Africans. Materials and methods: We analyzed 76 (female = 42; male = 34) thoracoabdo...
Article
Full-text available
material for the Later Stone Age in South Africa, and thus have, regardless of earlier excavation methods or commingling, considerable intrinsic value. Information about the collection can be accessed in the 'Catalogue of Holocene Skeletons in South Africa,' in which Morris (1992) described the history, general contents, and provenance of 120 Natio...
Article
Using discriminant function analysis, classification accuracies for ancestry and sex in white and black South Africans were compared using North American (FDB), African groups in Howells (HDB), and South African (SADB) databases in FORDISC 3.0. (FD3). Twenty-four standard linear measures were collected from a total of 86 black and 101 white crania...
Article
Full-text available
In November 2008, human skeletal remains were discovered during construction works undertaken by Carlop Properties in the Chloorkop industrial area, Kempton Park, Gauteng. The Forensic Anthropology Unit of the University of Pretoria, Forensic Anthropology Research Centre (FARC) was notified, and rescue excavations of both the exposed and the undist...
Article
Estimating age at death from adult skeletal remains is a daunting task for human osteologists. For this reason, the evaluation of micro-structural changes in bone with advancing age has become a popular method. However, factors such as nutrition, chronic disease, population group and sex have been suggested to influence the rate of bone turnover, a...

Questions

Question (1)
Question
How would one go about obtaining images of seated individuals to evaluate surface anatomy differences between the normal supine and seated?

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Projects

Projects (5)
Project
To determine whether there is a specific arthroscopic rotator cuff repair technique which stands out above the rest. This is done by systematically reviewing biomechanical load testing done by previous researchers, in order to obtain information on the various biomechanical properties of the fixation techniques. (The project was completed during November 2016, and is awaiting grading by the research supervisors.)
Project
Demonstrate the differences in the biomechanical properties of the overlying tendinous layer of the rotator cuff and the deeper capsular layer (at the point where they can separate from each other)