P. J. Gregg

6.1k citations

94 papers · 4.6k indexed · 1 hit paper · h-index 40

Impact in

Internal Medicine top 1%
- Venous Thromboembolism Diagnosis and Management
Surgery top 0.5%
- Total Knee Arthroplasty Outcomes
- Orthopaedic implants and arthroplasty
- Orthopedic Infections and Treatments
- Knee injuries and reconstruction techniques
- Hip and Femur Fractures
- Hip disorders and treatments

Papers in

Internal Medicine 10
- Venous Thromboembolism Diagnosis and Management 10
Surgery 76
- Total Knee Arthroplasty Outcomes 58
- Orthopaedic implants and arthroplasty 56
- Orthopedic Infections and Treatments 32
- Knee injuries and reconstruction techniques 13
- Hip disorders and treatments 8
- Hip and Femur Fractures 8

Co-authors: Jan van der Meulen Philip N. Baker Jim Lewsey David J. Deehan Paul Baker W. M. Harper Simon Jameson Mike Reed
Journals: Clinical Orthopaedics and Related Research (5 papers)The Journal of Arthroplasty (4 papers)The Bone & Joint Journal (4 papers)Journal of Bone and Joint Surgery (4 papers)Journal of Orthopaedic Research® (3 papers)
Partner nations: United Kingdom United States New Zealand

In The Last Decade

P. J. Gregg

92 papers receiving 4.5k citations

Hit Papers

align trajectories log scale

The role of pain and function in determining patient satisfaction after total knee replacement 2007 · 773 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2007 Journal of Bone and Joint Surgery - British Volume

Peers

Countries citing papers authored by P. J. Gregg

Since Specialization

Citations

This map shows the geographic impact of P. J. Gregg'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 P. J. Gregg with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. J. Gregg more than expected).

Fields of papers citing papers by P. J. Gregg

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. J. Gregg. 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 P. J. Gregg. The network helps show where P. J. Gregg may publish in the future.

Co-authors

The 25 scholars most cited alongside P. J. Gregg, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with P. J. Gregg Line = papers co-authored together P. J. Gregg links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Implant Optimisation for Primary Hip Replacement in Patients over 60 Years with Osteoarthritis: A Cohort Study of Clinical Outcomes and Implant Costs Using Data from England and Wales PLoS ONE ·Simon Jameson, James Mason, Paul Baker, P. J. Gregg, David J. Deehan, Mike Reed	2015	9
2	Have cementless and resurfacing components improved the medium-term results of hip replacement for patients under 60 years of age? Acta Orthopaedica ·Simon Jameson, James Mason, Paul Baker, P. J. Gregg, Martyn Porter, David J. Deehan, Mike Reed	2014	16
3	A Comparison of Surgical Approaches for Primary Hip Arthroplasty: A Cohort Study of Patient Reported Outcome Measures (PROMs) and Early Revision Using Linked National Databases The Journal of Arthroplasty ·Simon Jameson, James Mason, Paul Baker, P. J. Gregg, Ian McMurtry, David J. Deehan, Mike Reed	2013	27
4	Reason for Revision Influences Early Patient Outcomes After Aseptic Knee Revision Clinical Orthopaedics and Related Research ·Paul Baker, Paul Cowling, Steven M. Kurtz, Simon Jameson, P. J. Gregg, David J. Deehan	2012	68
5	Revision following patello‐femoral arthoplasty Knee Surgery Sports Traumatology Arthroscopy ·Paul Baker, Ramsay Refaie, P. J. Gregg, David J. Deehan	2012	18
6	Revision Rates after Primary Hip and Knee Replacement in England between 2003 and 2006 PLoS Medicine ·Nokuthaba Sibanda, Lynn P. Copley, Jim Lewsey, Mick Borroff, P. J. Gregg, Alex J. MacGregor, Martin Pickford, Martyn Porter, Keith Tucker, Jan van der Meulen	2008	59
7	Equity and need when waiting for total hip replacement surgery Journal of Evaluation in Clinical Practice ·Ray Fitzpatrick, Josephine M. Norquist, Barnaby C Reeves, Richard Morris, David Murray, P. J. Gregg	2004	42
8	A randomised, controlled trial of cemented versus cementless press-fit condylar total knee replacement Journal of Bone and Joint Surgery - British Volume ·F. M. Khaw, L. M. G. Kirk, Richard Morris, P. J. Gregg	2002	73
9	Radiological features predictive of aseptic loosening in cemented Charnley femoral stems Journal of Bone and Joint Surgery - British Volume ·I. R. Chambers, D. Fender, Andrew W. McCaskie, Barnaby C Reeves, P. J. Gregg	2001	41
10	Risks and benefits of prophylaxis against venous thromboembolism in orthopaedic surgery Journal of Bone and Joint Surgery - British Volume ·William J. Gillespie, David W. Murray, P. J. Gregg, David Warwick	2000	52
11	The Trent regional arthroplasty study Journal of Bone and Joint Surgery - British Volume ·D. Fender, W. M. Harper, P. J. Gregg	2000	27
12	Randomised, prospective study comparing cemented and cementless total knee replacement Journal of Bone and Joint Surgery - British Volume ·Andrew W. McCaskie, David J. Deehan, T. P. Green, K. Lock, John R. Thompson, W. M. Harper, P. J. Gregg	1998	27
13	Mortality and fatal pulmonary embolism after primary total hip replacement: Results from a regional hip register Journal of Bone and Joint Surgery - British Volume ·D. Fender, W. M. Harper, John R. Thompson, P. J. Gregg	1997	100
14	Intrinsic control of vascularization in developing cartilage rudiments International Journal of Experimental Pathology ·S. Fenwick, P. J. Gregg, S. Kumar, J Smith, P Rooney	1997	12
15	Subcapital stress fractures of the hip complicating total knee replacement Injury ·M.L. Rawes, T. Patsalis, P. J. Gregg	1995	15
16	Depression of bone blood flow after blunt trauma:A fracture study in the adult rabbit Acta Orthopaedica Scandinavica ·Paul D. Triffitt, P. J. Gregg	1994	11
17	A quantitative study of the routes of blood flow to the tibial diaphysis after an osteotomy Journal of Orthopaedic Research® ·Paul D. Triffitt, Catharine A. Cieslak, P. J. Gregg	1993	25
18	Acromioclavicular Joint Injuries in Sport Sports Medicine ·Joseph Dias, P. J. Gregg	1991	34
19	Early diagnosis and treatment of steroid induced avascular necrosis of bone BMJ ·Islwyn Thomas, P. J. Gregg	1984	1
20	Avascular necrosis of bone in children receiving high-dose steroid treatment. BMJ ·P. J. Gregg, Michel K. Barsoum, D Soppitt, R H Jackson	1980	10

About P. J. Gregg

P. J. Gregg is a scholar working on Internal Medicine, Surgery, Orthopedics and Sports Medicine, Health Informatics and General Dentistry, having authored 94 papers that have together received 4.6k indexed citations. Recurring topics across this work include Total Knee Arthroplasty Outcomes (58 papers), Orthopaedic implants and arthroplasty (56 papers), Orthopedic Infections and Treatments (32 papers), Knee injuries and reconstruction techniques (13 papers), Bone fractures and treatments (11 papers), Venous Thromboembolism Diagnosis and Management (10 papers), Hip disorders and treatments (8 papers) and Hip and Femur Fractures (8 papers). The work is most often cited by research in Internal Medicine (369 citations), Surgery (4.0k citations), Orthopedics and Sports Medicine (195 citations), Rheumatology (263 citations) and Cardiology and Cardiovascular Medicine (395 citations). P. J. Gregg has collaborated with scholars based in United Kingdom, United States and New Zealand. Frequent co-authors include Jan van der Meulen, Philip N. Baker, Jim Lewsey, David J. Deehan, Paul Baker, W. M. Harper, Simon Jameson, Mike Reed, D. Fender and L. M. G. Kirk. Their work appears in journals such as Clinical Orthopaedics and Related Research, The Journal of Arthroplasty, The Bone & Joint Journal, Journal of Bone and Joint Surgery and Journal of Orthopaedic Research®.

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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