Objectives: To evaluate how ligament augmentation repair (LAR) techniques are currently used in different anatomic regions in orthopaedic sports medicine, and to identify the most common indications and limitations of LAR.
Methods: We sent survey invitations to 4,000 members of the International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine society. The survey consisted of 37 questions total, with members only receiving some branching questions specific to their area of specialisation. Data were analysed using descriptive statistics, and the significance between groups was evaluated using chi-square tests of independence.
Results: Of 515 surveys received, 502 were complete and included for the analysis (97% completion rate). 27% of respondents report from Europe, 26% South America, 23% Asia, 15% North America, 5.2% Oceania, and 3.4% Africa. 75% of all survey respondents report using LAR, most frequently using it for the anterior talofibular ligament ( 69%), acromioclavicular joint ( 58%), and the anterior cruciate ligament (51%). Surgeons in Asia report using LAR the most (80%), and surgeons in Africa the least (59%). LAR is most commonly indicated for additional stability (72%), poor tissue quality (54%), and more rapid return-to-play (47%). LAR users state their greatest limitation is cost (62%), while non-LAR users state their greatest reason not to use LAR is that patients do well without it (46%). We also find that the frequency of LAR use among surgeons may differ based on practice characteristics and training. For example, surgeons who treat athletes at the professional or Olympic level are significantly more likely to have a high annual use of LAR (20+ cases) compared to surgeons that treat only recreational athletes (45% and 25%, respectively, p = 0.005).
Conclusion: LAR is broadly applied in orthopaedics but its rate of use is not homogeneous. Outcomes and perceived benefits vary depending on factors such as surgeon specialty and treatment population.
Level Of Evidence: Level V.
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http://dx.doi.org/10.1016/j.jisako.2023.04.004 | DOI Listing |
J Hum Evol
December 2024
Department of Anthropology, University at Albany (SUNY), 1400 Washington Avenue, Albany, NY 12222, USA; College of Fellows, Institute of Advanced Study, Durham University, Cosin's Hall, Palace Green, Durham, DH1 3RL, UK; Department of Anthropology, Durham University, Dawson Building, South Road, Durham, DH1 3LE, UK. Electronic address:
The degree of sexual size dimorphism in fossil hominins is important evidence for the evaluation of evolutionary hypotheses, but it is also difficult/impossible to measure directly. Multiple methods have been developed to estimate dimorphism in univariate and multivariate datasets, including when data are missing. This paper introduces 'dimorph', an R package that implements many of these methods and associated resampling-based significance tests and evaluates their performance in terms of Type I error rates and power.
View Article and Find Full Text PDFMol Phylogenet Evol
December 2024
Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ, USA.
Species relationships and speciation have traditionally been represented by phylogenetic trees, but not all evolutionary histories fit into bifurcating divergence models. Introgressive hybridization challenges this assumption by sometimes [or maybe often] leading to mitochondrial introgression, wherein one species' mitochondrial genome is entirely replaced by another's (mitochondrial capture). Such processes result in mitonuclear discrepancies, complicating species delimitation and phylogenetic inference.
View Article and Find Full Text PDFJ Clin Neurosci
December 2024
Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, 199 Dazhi Road, Harbin 150001, China. Electronic address:
Background: The atlantoaxial vertebral model was established in order to compare the biomechanical properties of C2 pedicle and translaminar screws from the perspective of the screws themselves.
Methods: A finite element model of the screw-vertebrae was developed. The screw load-displacement ratios were analysed under up/down and left/right load conditions; the vertebral load-displacement ratios under flexion/posterior extension (FLX/EXT), left/right lateral bending (LLB/RLB), and left/right rotation (LAR/RAR) load conditions; the bone-screw interface stress values and screw load-displacement ratios under physiological load conditions; and the structural stress values of the screw-rod structure under front/back and left/right load conditions.
Stroke
December 2024
Departments of Neurology, Amsterdam UMC location University of Amsterdam, the Netherlands. (S.S.N., L.A.R., C.F.P.B., V.G., Y.B.W.E.M.R., J.M.C.).
Background: Cardiac computed tomography (CT) is increasingly used to search for cardioembolic sources of acute ischemic stroke (AIS). We assessed the association between high-risk cardioembolic sources on cardiac CT and AIS.
Methods: We performed a case-control study using data from a prospective cohort including consecutive adult patients with suspected stroke who underwent cardiac CT acquired during the initial stroke imaging protocol between 2018 and 2020.
This study examined the growth parameters of both glyphosate-susceptible and glyphosate-resistant biotypes of , designated as GA2005 and GA2017, respectively. A two-year microplot field study was conducted to assess their growth characteristics. Scheduled destructive harvests on named harvest days (HD) were conducted to collect measurements for further calculation of net assimilation rate (NAR; g m day), specific leaf area (SLA), leaf weight ratio (LWR), stem-to-leaf ratio (SLR), leaf area index (LAI), leaf area ratio (LAR; cm g), leaf area duration (LAD; days), relative growth rate (RGR; g.
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