Tim qualified from the University of Edinburgh in 2005. After a period in general practice, he joined Rossdales in early 2007, working as an orthopaedic assistant in the Diagnostic Centre. He then went on to complete an 18-month internship at the Hospital and Diagnostic Centre, before embarking on a surgical residency at the University of Edinburgh, co-supervised by Rossdales. Tim re-joined the practice in 2014, and prior to working full time in the hospital team he spent time worked in our Hertfordshire practice and then as part of our Newmarket horses in training team.
In 2013 Tim was awarded an MSc with Distinction from the University of Edinburgh for his work on post-operative finding in horses undergoing laryngoplasty (tie-back) for recurrent laryngeal neuropathy (laryngeal hemiplegia). In 2015 he attained the RCVS Certificate in Advanced Veterinary Practice and became a Diplomate of the European College of Veterinary Surgeons (EVCS). He was awarded RCVS Specialist status in 2016 and joined the partnership at Rossdales in April 2017. Tim became a Diplomate of the European Veterinary Dental College (EVDC) in 2018, and a clinical director of Rossdales in 2021.
During his surgical training Tim also developed his skills in equine dental surgery and sees many of the referral dental cases and sinus cases in the hospital. He is able to offer a complete specialist-level service in dental surgery, and regularly lectures and teaches on dental and sinus courses in the UK, Europe, Scandinavia and the USA.
Overground endoscopic examination following laryngeal tie-forward in horses with dorsal displacement of the soft palate
Barnett, TP, Colgate, VA, Smith, LRC, Barakzai, SZ
2025 Vet. Surg. Aug; 54 (6) 1053-1061 epub: 18 March 2025 https://doi.org/10.1111/vsu.14245 PubMed: 40099351
Outcome and racing performance following standing fracture repair in 245 horses
Colgate VA, Robinson N, Barnett TP, Bathe AP, Coleridge MOD, Smith LCR, Payne RJ
2023 Equine Vet. J epub: Early View 6 Oct 2023 https://doi.org/10.1111/evj.14016
Overground endoscopic examination following laryngeal tie forward for treatment of soft palate dysfunction in horses
Barnett TP, Colgate VA, Smith LCR, Palmer L, Barakzai S
2022 Vet. Surgery, ECVS Abstracts https://doi.org/10.1111/vsu.13693
Factors affecting racing performance following composite laryngeal tie-forward surgery
Colgate VA, Newton R, Offord SCR, Smith LCR, Barnett TP
2022 Vet. Surgery, ECVS Abstracts https://doi.org/10.1111/vsu.13693
Outcome and racing performance of 194 horses undergoing standing Fracture Repair (2007-2018)
Colgate VA, Newton R, Barnett TP, Bathe AP, Boys Smith, S, Smith LCR, Payne RJ
2021 Vet. Surgery, ECVS Abstracts https://doi.org/10.1111/vsu.13672
Hospital admission of mares showing colic signs within 7 days of parturition
Colgate VA, Barnett TP, Newton JR, Payne RJ
2018 Equine Vet.J. 50 (21) 20-21 doi.org/10.1111/evj.36_13008
Do oral or minimally invasive equine cheek tooth extraction techniques reduce the incidence of post-operative complications in the horse when compared to repulsion methods?
Colgate VA, Wylie CE, Barnett TP
2018 Veterinary Evidence 3 (3) doi: 10.18849/ve.v3i3.158
Shear mouth secondary to temporohyoid osteoarthropathy
Grant MJ, Barnett TP
2017 Equine Vet. Educ. 31 2 12-16
Equine renal hemangiosarcoma: clinical presentation, pathologic features, and pSTAT3 expression
Hughes K, Scott VHL, Blanck M, Barnett TP, Spanner Kristiansen J, Foote AK
2017 J Vet Diagn Invest 30 (2) 268-274 epub: Epub 2017 Dec 3 doi: 10.1177/1040638717745575 PubMed: 29199537
Latrogenic fracture of the premaxilla during standing exodontia
Grant MJ, Barnett TP
2016 Equine Vet Educ. 29 11 584-88 10.1111/eve.12659
A call for consensus on upper airway terminology
Barnett TP, Smith LCR, Cheetham J, Barakzai SZ, Southwood L, Marr CM
2015 Equine Vet J. 47 5 505-7 10.1111/evj.12468 PubMed: 26278066
What is the best way to deal with trauma of the oral cavity?
Barnett TP
2016 Equine Vet Educ. 28 4 232-3 10.1111/eve.12349
Tracheal resection and anastomosis after traumatic tracheal stenosis in a horse.
Barnett TP, Hawkes CS, Dixon PM.
2015 Vet. Surg. 44 2 265-9 epub: 2014 Sep 10 10.1111/j.1532-950X.2014.12270.x. PubMed: 25209464
Partial mandibular condylectomy and temporal bone resection for chronic, destructive, septic arthritis of the temporomandibular joint in a horse
Barnett TP, Powell SE, 1009, Marr CM, Steven WN, Payne RJ
2014 Equine Vet Ed 26 2 59-63
A long-term study on the clinical effects of mechanical widening of cheek teeth diastemata for treatment of periodontitis in 202 horses (2008-2011)
Dixon PM, Ceen S, Barnett TP, O'Leary JM, Parkin TDH. and Barakzai SZ
2014 Equine Vet. J. 46 76-80
Characterisation of palatal dysfunction after laryngoplasty.
Barnett TP, O'Leary JM, Dixon PM and Barakzai SZ
2014 Equine Vet. J. 46 1 60-63 epub: 2013 Jun 28 10.1111/evj.12081. PubMed: 23662892
Pulpar temperature changes during mechanical reduction of equine cheek teeth: Comparison of different motorised dental instruments, duration of treatments and use of water cooling.
O'Leary JM, Barnett TP, Dixon PM, Parkin TDH, and Barakzai SZ
2013 Equine Vet. J. 45 3 355-360 epub: 2012 Sep 26 10.1111/j.2042-3306.2012.00650.x. PubMed: 23009359
Long-term exercising videoendoscopic examination of the upper airway following laryngoplasty surgery: a prospective cross-sectional study of 41 horses.
Barnett TP, O'Leary JM, Dixon PM, Parkin TDH, and Barakzai SZ
2013 Equine Vet. J. 45 5 593-597 epub: 2013 Jan 29 10.1111/evj.12020 PubMed: 23360315
Long-term maintenance of arytenoid cartilage abduction and stability during exercise after laryngoplasty in 33 horses (2005-2010).
Barnett TP, O'Leary JM, Parkin TD, Dixon PM, Barakzai SZ.
2013 Vet. Surg. 42 3 291-5 epub: 2013 Mar 1 10.1111/j.1532-950X.2013.01109.x. PubMed: 23452305
