The Bristol Knee Clinic
David Johnson in theatre and with a patient

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The Bristol Orthopaedic
& Sports Injury Clinic
St Mary's Hospital
Upper Byron Place
Bristol BS8 1JU

Tel: 0117 970 6655

Patella Tendonitis - About Mr David P Johnson

Mr David P Johnson David P Johnson

David has had a long-term research interest into the condition of patellar tendonitis. He started researching into the subject in 1990. He first published a study on the MRI appearances, the anatomy and morphology of patients with this condition. This paper was entitled "Radiographic and Magnetic Resonance Imaging Analysis of the Morphology of Patellar Tendonitis". This was published in The Knee, Volume 2 (1), 1995, 61-62. Further research was published the following year "Magnetic Resonance Imaging of Patellar Tendonitis" which was published in The Journal of Bone and Joint Surgery (British), 78/b, May 1996, 452-7.

Subsequently in association with his clinical Fellow, Mr Oreste Basso, a visiting surgeon from Italy, a paper on the anatomy of the patellar tendon was published "The Anatomy of the Patellar Tendon" in a Springer Verlag on line publication in October 2000 and subsequently in Knee Surgery, Sports Traumatology and Arthroscopy, Volume 9, 1, January 2001, 2-5. Subsequently again with Mr Oreste Basso and Professor Andrew Amis of The Imperial College, London, a series of biomechanical studies were undertaken on the micro structure and biomechanics of the patella and the patellar tendon and the influence on patellar tendon and the patellar tendonitis and the surgery for this condition.

Published papers included "Patellar Tendon Fibre Strain: The Differential Responses to Quadriceps Tension" published in Clinical Orthopaedics and Related Research, (400), 246-53, 2002 July.Subsequent papers have been submitted including "Arthroscopic Treatment of Patellar Tendonitis: A New Treatment" and "The Patella Apex Impingement Pressure on the Patellar Tendon In Vitro and its Relation to Pathological Lesions of Patellar Tendonitis".

As a result of the extensive research into the condition Mr Johnson designed a new arthroscopic, keyhole or minimally invasive procedure for the treatment of this condition. The procedure included decompression of the inferior pole "impingement" by a technique utilising key-hole surgery or arthroscopy. He first undertook this new procedure of decompression of the inferior pole of the patella in 1990. Subsequently Mr. Johnson has published and presented this new technique around the world and it has been adopted in many leading centres worldwide as the technique of choice in treating patellar tendonitis. Mr Johnson has lectured around the world on this subject. His publications include the following abstracts:

+ See a full list of Patella Tendonitis research published by Mr Johnson.

+ More about Mr Johnson



If you do not have private health insurance, a "fixed price" scheme is available from the hospital, which guarantees the price of your hospitalisation surgical and anaesthetic costs. Further details of this scheme are available on request from the hospital. For patients with medical insurance the fees charged for the surgery will be advised with an estimate prior to surgery. The fees are according to the BMA schedule with an allowance for inflation since 1992, and you should expect these to be usually and customary settled in full by your insurance company. If your insurance cover is limited or deficient then patients do remain responsible for the settlement of the surgeons' fees.

The invoice will be sent to you by post afterwards. The fees depend on the type and complexity of the procedure performed. Although these can usually be estimated prior to surgery, on occasion the procedure undertaken will prove to be more extensive than foreseen and additional procedures, or prolonged hospital stay may prove necessary. In such situations further fees may be added to your bill. The insurance companies generally make allowances for such contingencies and have ways of calculating such additional charges. These fees are fair, reasonable and customary and should usually be settled in full by your insurance company. If there is any problem with getting reimbursement for the fees from your insurer, please let the secretary know.

Payment is requested within 14 days. Interest and a late payment fee will be added if payment is delayed by more than 30 days and further costs added if further administration is necessary to secure payment beyond this time. You should expect these to be settled in full by your insurance company. If your insurance cover is deficient then patients do remain responsible for the settlement of all the surgeon's fees. If you do not have private health insurance, a "hospital fixed price" scheme is available which guarantees the price of your hospitalisation. Further details of this scheme are available on request from the hospital.

How to make an appointment

Contact us directly:
Jane WoodheadAn appointment may be booked directly though Miss Jane Woodhead, Mr. Johnson's secretary by telephoning (44) 0117 970 6655 or via our e-mail contact form.

Appointments by referal::
Where a referal is from your GP or physiotherapist a letter will ususally be provided including the details of any previous treatment recieved or other relevant medical details.

Useful information to bring to your appointment:
It is helpful if any previous X-rays or scans which are available are brought to the consultation, and the general practitioner may wish to provide the details of previous treatment received and other medical conditions.


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