London – Fortius Clinic

FIFA Medical Centre of Excellence

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FIFA Medical Centre of Excellence

London – Fortius Clinic

Fortius Clinic is a leading private orthopaedic and sports injury clinic in London, UK. It is a centre of excellence in the diagnosis and treatment of both surgical and non-surgical musculoskeletal conditions. In addition to the founding clinic in Marylebone, we have a second clinic in the City and will be opening a dedicated orthopaedic day surgical centre in central London in summer 2016.

Since opening in 2011, Fortius Clinic has established an international reputation, becoming the clinic of choice for many of the UK’s elite sports professionals. It became a FIFA Medical Centre of Excellence in 2014.

From the initial founding group of 12, there are now almost 60 consultants working under the Fortius banner. Fortius Clinic is split into eight sub-speciality groups: spine and pain, shoulder and elbow, hand and wrist, hip, knee, foot and ankle, sports and exercise medicine, and rheumatology and radiology. There is close multidisciplinary collaboration between all groups. In addition, we have strong links with many physiotherapy and rehabilitation professionals and groups and with the medical teams from football clubs and a wide variety of other sports. Our physicians also act as team physicians for several Premiership clubs and we regularly perform pre-transfer medical assessments and imaging.

Research and education is a key element of Fortius Clinic. Our consultants collaborate closely with a variety of academic institutions including Imperial College, London and Leeds Beckett University, Leeds. Current research includes cellular, biomechanical, radiological and clinical outcome studies. In conjunction with Leeds Beckett University, we are developing a cloud-based sports injury data collection system and we hope this will eventually be used to facilitate data collection by other FMCEs. Currently, with the support of other FMCEs, we are undertaking a study into proximal adductor longus avulsions in football.

Fortius Clinic is keen to contribute to all aspects of orthopaedic education and has contributed to the FIFA Diploma in Football Medicine. Our consultants provide foot and ankle, shoulder, hip and knee surgical fellowships which offer high-volume exposure to the management of elite sports professionals. They also run monthly educational events for physiotherapists and are regular speakers at national and international conferences. Additionally, Fortius Clinic held its first biennial Fortius International Sports Injury Conference in 2015 which was a highly successful multidisciplinary meeting, with over 600 physicians, surgeons, physiotherapists and other sports medicine professionals on the subject of return to play.

Fact sheet

London – Fortius Clinic

First outpatient and diagnostic centre opened in central London in September 2011

Accredited FMCE since January 2014

Specialist orthopaedic and sports injury clinic with nearly 60 orthopaedic surgeons, sports physicians, rheumatologists and musculoskeletal radiologists.

UK clinic of choice for many elite sports professionals including Premiership footballers, rugby players, cricketers, tennis players and athletes but also treats a wide range of recreational sports men and women

In 2015, over 15,000 new patients and over 5,000 procedures and 7,000 MRIs and ultrasounds performed


London – Fortius Clinic

Dr Andy Williams, MD

Director / Head of FMCE


Phone number:
+44 203 195 2442

Mobile number

Postal address
17 Fitzhardinge Street,W1H 6EQ, London, UK

Mary Jones

Director of Research and Governance,
First contact person of the FMCE


Phone number:
+44 203 195 2341

Mobile number
+44 7957 174 536

Postal address
17 Fitzhardinge Street,W1H 6EQ, London, UK

Felicity Kelly

Chief Strategy and Communications Officer


Phone number:
+44 203 195 2434

Mobile number
+44 7836 553 507

Postal address
17 Fitzhardinge Street,W1H 6EQ, London, UK



Top publications


Watt F E, Paterson E, Freidin A, Kenny M, Judge A, Saklatvala J, Williams A, Vincent T L. Acute molecular changes in synovial fluid following human knee injury are associated with early clinical outcomes. Arthritis Rheumatol 2016 Mar 18. Epub 2016 Mar 18.

Stephen J S, Urquhart D W J, J. van Arkel R, Ball S, Jaggard M K J, Lee J C, Church J S. The Use of Sonographically Guided Botulinum Toxin Type A (Dysport) Injections into the Tensor Fasciae Latae for the Treatment of Lateral Patellofemoral Overload Syndrome, Am J Sports Med published online before print February 22, 2016 0363546516629432.

Stephen J S, Halewood C, Kittl C, Bollen S R, Williams A, Amis A A. Posteromedial Meniscocapsular Lesions Increase Tibiofemoral Joint Laxity with Anterior Cruciate Ligament Deficiency, and Their Repair Reduces Laxity. Am J Sports Med 2016 Feb 11;44(2):400-8. Epub 2015 Dec 11.

Kittl C, El-Daou H, Athwal K, Gupte C M, Weiler A, Williams A, Amis A A. The Role of the Anterolateral Structures and the ACL in Controlling Laxity of the Intact and ACL-Deficient Knee. Am J Sports Med 2016 Feb 10;44(2):345-54. Epub 2015 Dec 10.

Thompson S M, Jones M, Lavelle J R, Williams A. Management of osteochondritis dissecans of the knee. J Sport Rehabil 2014 Aug;23(3):216-22

Kittl C, Weiler A, Williams A, Amis AA. Arthroskopie Anterolaterale Rotationsinstabilität- Anatomie, Biomechanik und Therapeutische Möglichkeiten. 2014; 27: 170-176

Nawabi D H, Cro S, Hamid I P, Williams A. Return to play after lateral meniscectomy compared with medial meniscectomy in elite professional soccer players. Am J Sports Med 2014 Sep 17;42(9):2193-8

Kittl C, Halewood C, Stephen J M, Gupte C M, Weiler A, Williams A, Amis A A. Length change patterns in the lateral extra-articular structures of the knee and related reconstructions. Am J Sports Med 2015 Feb 24;43(2):354-62. Epub 2014 Dec 24.

Foot and ankle

Glazebrook M, Stone J, Matsui K, Guillo S, Takao M, Batista J, Bauer T, Calder J, Choi J, Ghorbani A, Molloy A, Nery C, Ozeki S, Pearce C, Perera A, Marsland D, Konan S, Eleftheriou K, Calder J, Elliot R. Fusion of the First Metatarsophalangeal Joint: Precontoured or Straight Plate? Journal of Foot and Ankle Surgery. Apr 2016 DOI:

Dalmau-Pastor M, Yasui Y, Calder JD, Karlsson J, Kerkhoffs GM, Kennedy JG. Anatomy of the inferior extensor retinaculum and its role in lateral ankle ligament reconstruction: a pictorial essay. Knee Surg Sports Traumatol Arthrosc. 2016 Mar 29. [Epub ahead of print] PMID:27023098

Kerkhoffs GM, Kennedy JG, Calder JD, Karlsson J. There is no simple lateral ankle sprain. Knee Surg Sports Traumatol Arthrosc. 2016 Mar 29. [Epub ahead of print]

Walls R, Ross K, Fraser E, Hodgkins C, Smyth N, Egan C, Calder J, Kennedy J. Football injuries of the ankle: A review of the injury mechanisms, diagnosis and management. World Journal of Orthopaedics 2016 January 18; 7(1): 8-19 DOI: 10.5312/wjo.v7.i1.8

Calder J, Freeman R, Aukvarson E, van Dijk C, Ackermann P. Meta-analysis of risk and treatment of thrombo-embolic disease following foot and ankle injuries. Knee Surg Sports Traumatol Arthrosc. 2016 24(4), 1409-1420. DOI: 10.1007/s00167-015-3976-y

Deol R, Roche A, Calder JD.  Return to playing and training following Lisfranc injuries in elite athletes. Am J Sp Med. 2016 Jan;44(1):166-70. doi: 10.1177/0363546515616814

Pereira H, Pijnenburg B, Raduan F, Stone JW, Tourne Y. Percutaneous Ankle Reconstruction of Lateral Ligaments (Perc-Anti RoLL). Foot Ankle Int Feb 2016; DOI: 10.1177/1071100716633648

Ballal M, Pearce C, Calder J. Instructional Review: Management of sports injuries of the foot and ankle: an update (Part 1 – the ankle joint). Bone Joint J [In press].

White W, Calder J, McCollum G. Return to sport following lateral ligament repair of the ankle in professional athlete. Knee Surg Sports Traumatol Arthrosc. 2015 Oct 5. [Epub ahead of print]

N Pollock, J Calder, P Dijkstra, R Chakraverty. The incidence and nature of Plantaris pathology in elite UK Track & Field athletes over a 4 year period. KSSTA [In Print]

Guillo S, Takao M, Calder J, Karlson J, Michels F, Bauer T. Ankle Instability Group Arthroscopic anatomical reconstruction of the lateral ankle ligaments. Knee Surg Sports Traumatol Arthrosc DOI 10.1007/s00167-015-3789-z. 25 Sep 2015 [Epub ahead of print]

Calder J, Bamford R, Petrie A, McCollum G. Grade II syndesmosis injuries in elite athletes – predicting the need for surgical stabilization and time to return to sports. ArthroscopyI [In Print]

Pearce C, Calder J. Calcaneal fractures: selection bias is key: An annotation. Bone Joint J 2015 Jul;97-B(7):880-2. doi: 10.1302/0301-620X.97B7.35305.

Takao M, Glazebrook M, Stone J, Guillo S and the Ankle Instability Group. Ankle arthroscopic reconstruction of lateral ligaments (Ankle Anti-ROLL). Arthroscopy Techniques [In Print]

Takao M, Matsui K, Stone J, Glazebrook M, Kennedy J, Guillo,S, Calder J, Karlsson, K. Arthroscopic anterior talofibular ligament repair for lateral instability of the ankle. Knee Surg Sports Traumatol Arthrosc. 2015 May 16. [Epub ahead of print].

Calder J, Freeman R, Pollock N. Plantaris. excision in the treatment of non-insertional Achilles tendinopathy in elite athletes. Br J Sp Med 2015 Dec;49(23):1532-1534. doi: 10.1136/bjsports-2014-093827. Epub 2014 Nov 13

Calder J, Ballal M, Lutz M, Deol R, Hamilton P, Pearce. Histological Evaluation of Calcaneal Tuberosity Cartilage – A Proposed Donor Site for osteochondral Autologous Transplant for Talar Dome Osteochondral Lesions. Foot Ankle Surg 2015 Sep;21(3):193-7. doi: 10.1016/j.fas.2014.11.008. Epub 2014 Dec 11.

N Murray, Kemp S, Calder J. Frequency and trends in Foot & Ankle injuries; The experience of an English Premier League Football Club using a new Impact Factor of Injury. Foot Ankle Surg. 2014 Dec; 20(4):237-240.

Hannon C, Smyth N, Murawaski C, Savage-Elliott I, Deyer T, Calder JD, Kennedy J.  Osteochondral lesions of the talus: Aspects of current management. Bone Joint J. 2014 Feb; 96-B(2):164-71.

Roche AJ, Calder JD. An atraumatic turf toe in an elite soccer player – A stress related phenomenon? Foot Ankle Surg. 2014 Mar; 20(1):71-3.

Hip and groin

Dimitrakopoulou A, Schilders E. Sportsman’s hernia? An Ambiguous term. JHPS 2016. Vol.0,No 0,pp.1-7.

Schilders E. Mini Symposium. Non-articular sources of groin pain in the athlete. JHPS 2015. Vol.0,No. 0,pp.1-2

Doha Agreement meeting on terminology and definitions in groin pain in athletes. Weir et al (24 authors inc. Schilders E) Br J Sports Med. Br J Sports Med 2015;49:768-774Groin pain in sports; The anatomy gives the answer. Schilders EUJSM. Vol.3,Supp 1, Sep 2015


Ekstrand J, Lee JC, Healy, JC. MRI findings and return to play in football: a prospective analysis of 255 hamstring injuries in the UEFA Elite Club Injury Study.  Br J Sports Med bjsports-Online First: 15 April 2016doi:10.1136/bjsports-2016-095974

Weiler R, Van Mechelen W, Fuller C, Verhagen E. Sport Injuries Sustained by Athletes with Disability: A Systematic Review. Sport Med Published online 4/2/2016

Weiler R, Aggio D, Hamer M, et al. Sedentary behaviour among elite professional footballers: health and performance implications. BMJ Open Sport Exerc Med 2015;1:e000023. doi:10.1136/bmjsem-2015-000023

Needleman I, Ashley P, Meehan L, et al. Br J Sports Med Poor oral health including active caries in 187 UK professional male football players: clinical dental examination performed by dentists Published Online First: November 2, 2015 as 10.1136/bjsports-2015-094953

Weiler R, et al. Non-operative management of a complete anterior cruciate ligament injury in an English Premier League football player with return to play in less than 8 weeks: applying common sense in the absence of evidence. BMJ Case Rep Published online: oi:10.1136/bcr-2014-208012