Ahmed A. Khalifa

709 total citations
100 papers, 394 citations indexed

About

Ahmed A. Khalifa is a scholar working on Surgery, Epidemiology and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Ahmed A. Khalifa has authored 100 papers receiving a total of 394 indexed citations (citations by other indexed papers that have themselves been cited), including 64 papers in Surgery, 11 papers in Epidemiology and 11 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Ahmed A. Khalifa's work include Orthopaedic implants and arthroplasty (30 papers), Total Knee Arthroplasty Outcomes (22 papers) and Hip and Femur Fractures (17 papers). Ahmed A. Khalifa is often cited by papers focused on Orthopaedic implants and arthroplasty (30 papers), Total Knee Arthroplasty Outcomes (22 papers) and Hip and Femur Fractures (17 papers). Ahmed A. Khalifa collaborates with scholars based in Egypt, India and Canada. Ahmed A. Khalifa's co-authors include David Weaver, Samir Ziada, Arun Mullaji, Osama Farouk, Gautam M. Shetty, Mohammad Kamal Abdelnasser, A. E. Osman, Pierre Gouny, Ali Badra and J Braesco and has published in prestigious journals such as SHILAP Revista de lepidopterología, CHEST Journal and Annals of the Rheumatic Diseases.

In The Last Decade

Ahmed A. Khalifa

80 papers receiving 381 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ahmed A. Khalifa Egypt	11	214	76	59	46	39	100	394
Paul Davison United Kingdom	11	263 1.2×	20 0.3×	39 0.7×	3 0.1×	4 0.1×	27	602
A. Hernández Spain	11	259 1.2×	6 0.1×	5 0.1×	21 0.5×	4 0.1×	42	385
Lisa Chao United States	9	466 2.2×	5 0.1×	42 0.7×	18 0.4×		19	560
Zubin J. Daruwalla Singapore	11	159 0.7×	7 0.1×	7 0.1×	39 0.8×		21	307
Charles H. Harley Canada	10	258 1.2×	33 0.4×	10 0.2×	248 5.4×		13	505
Metin Uzun Türkiye	12	226 1.1×	3 0.0×	9 0.2×	58 1.3×	2 0.1×	36	400
Katsunori Tanaka Japan	10	101 0.5×	69 0.9×	48 0.8×	2 0.0×		52	337
Hassan Sadri Switzerland	12	399 1.9×	9 0.1×	6 0.1×	42 0.9×		23	412
Amarjit Singh India	11	21 0.1×	30 0.4×	2 0.0×	23 0.5×	5 0.1×	33	331
Karl D. Reinig United States	9	728 3.4×	13 0.2×	3 0.1×	39 0.8×		11	790

Countries citing papers authored by Ahmed A. Khalifa

Since Specialization

Citations

This map shows the geographic impact of Ahmed A. Khalifa's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ahmed A. Khalifa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ahmed A. Khalifa more than expected).

Fields of papers citing papers by Ahmed A. Khalifa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ahmed A. Khalifa. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ahmed A. Khalifa. The network helps show where Ahmed A. Khalifa may publish in the future.

Co-authorship network of co-authors of Ahmed A. Khalifa

This figure shows the co-authorship network connecting the top 25 collaborators of Ahmed A. Khalifa. A scholar is included among the top collaborators of Ahmed A. Khalifa based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ahmed A. Khalifa. Ahmed A. Khalifa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Khalifa, Ahmed A., et al.. (2025). Admission Blood Glucose Level with a Cutoff Value of 15 mmol/L Is a Reliable Predictor of Mortality in Polytraumatized Patients—a Prospective, Observational, Longitudinal Study From a North African Level One Trauma Center. Orthopedic Research and Reviews. Volume 17. 43–54.

Khalifa, Ahmed A., et al.. (2025). Irreducible Locked Symphysis Pubis Disruption Caused by Incarcerated Urinary Bladder in a 14-year-Old Boy, a Case Report and Review of the Literature. Orthopedic Research and Reviews. Volume 17. 115–128.

Khalifa, Ahmed A., et al.. (2025). Health-related quality-of-life, complications, and mortality rates after geriatric acetabular fracture, non-operative compared to operative management: a systematic review and meta-analysis. International Journal of Surgery. 111(10). 7181–7201. 1 indexed citations

Khalifa, Ahmed A., et al.. (2025). Assessment and quantification of ipsilateral and contralateral ankle joint alignment changes after unilateral total knee arthroplasty for knee osteoarthritis with varus deformity: a retrospective cohort study. Knee Surgery and Related Research. 37(1). 26–26.

Khalifa, Ahmed A., et al.. (2024). Rheumatoid arthritis presentation in elderly patients: How different from the usual presentation?. The Egyptian Rheumatologist. 46(2). 102–105.

Khalifa, Ahmed A., et al.. (2024). AB0500 RHEUMATOID ARTHRITIS PRESENTATION IN ELDERLY: HOW DIFFERENT FROM THE CONVENTIONAL PRESENTATION?. Annals of the Rheumatic Diseases. 83. 1519–1520.

Khalifa, Ahmed A., et al.. (2024). Does the placement of acetabular cups differ between right and left sides for a right-handed surgeon operating through a direct lateral approach? A comparative study. Arthroplasty. 6(1). 58–58. 1 indexed citations

Khalifa, Ahmed A., et al.. (2024). Removing hardware from anterior approaches following acetabular fractures: a challenging yet indicated procedure. International Orthopaedics. 49(1). 249–257. 1 indexed citations

Osman, A. E., et al.. (2024). Locally obtained autologous bone grafts are effective for achieving arthrodesis while managing foot and ankle charcot’s neuroarthropathy: short to mid-term results from a specialized north African foot and ankle surgery unit. Journal of Orthopaedic Surgery and Research. 19(1). 570–570. 1 indexed citations

10.

Khalifa, Ahmed A., et al.. (2024). Efficient hip joint distraction using the AO large femoral distractor in treating acetabular fractures associated with marginal impaction and intraarticular incarcerated fragments. BMC Musculoskeletal Disorders. 25(1). 242–242. 1 indexed citations

11.

Khalifa, Ahmed A., et al.. (2023). The evolution of surgical hip dislocation utilization and indications over the past two decades: a scoping review. International Orthopaedics. 47(12). 3053–3062. 5 indexed citations

12.

Khalifa, Ahmed A., et al.. (2023). Complex regional pain syndrome after multiple revision total hip arthroplasty surgeries. SHILAP Revista de lepidopterología. 47(1). 1 indexed citations

13.

Khalifa, Ahmed A., et al.. (2022). Burnout syndrome (BOS) among resident doctors in an Egyptian tertiary care university hospital: Prevalence and determinants during the COVID-19 pandemic. International Journal of Social Psychiatry. 69(2). 396–405. 3 indexed citations

14.

Khalifa, Ahmed A., et al.. (2021). Safety and efficacy of surgical hip dislocation in managing femoral head fractures: A systematic review and meta-analysis. World Journal of Orthopedics. 12(8). 604–619. 10 indexed citations

15.

Khalifa, Ahmed A., et al.. (2021). The electrocardiogram (ECG) made easy for orthopaedic surgeons. 4(2). 46–51. 2 indexed citations

16.

Khalifa, Ahmed A., et al.. (2020). Evaluation of the short-term results of closed reduction and percutaneous K-wires fixation of displaced intra-articular calcaneal fractures (DIACF). The Foot. 45. 101740–101740. 1 indexed citations

17.

Khalifa, Ahmed A., et al.. (2020). Management of femoral head fractures through surgical hip dislocation (SHD): a demanding but safe technique. Archives of Orthopaedic and Trauma Surgery. 141(10). 1701–1710. 10 indexed citations

18.

Khalifa, Ahmed A., et al.. (2020). Evaluating distal femoral torsion and posterior condylar line reliability for adjusting femoral component rotation in TKA, Egyptian population radiographic study. Journal of Clinical Orthopaedics and Trauma. 13. 99–105.

19.

Khalifa, Ahmed A.. (2019). Which Anesthesia Should Be Used for Total Knee Arthroplasty (TKA), General or Neuraxial?. 1(4). 1 indexed citations

20.

Khalifa, Ahmed A., et al.. (2019). Scarcity of publications from arab countries in one of the q1 orthopedic journals, is it us or the journal?. Journal of Musculoskeletal Surgery and Research. 4(1). 9–9. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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