The International Delphi Study on the Clinical Diagnosis of Lumbar Spinal Stenosis (LSS) :


Dear Spinal, clinical and research colleagues :


You are cordially invited to participate in an online Delphi survey entitled “The International Delphi Study on the Clinical Diagnosis of Lumbar Spinal Stenosis (LSS).


This is a project of the International Society for the Study of the Lumbar Spine (ISSLS) Taskforce on the Diagnosis and Management of Lumbar Spinal Stenosis. The study has been approved by the Human Subjects Ethics Subcommittee of The Hong Kong Polytechnic University (Approval Number: HSEARS20190213003). Your contribution to this Delphi survey will help develop consensus for diagnosing patients with LSS.


The survey will only take 7 minutes to complete. Please click on the following link for the survey:


Below is the website introduction should you wish to read this before opening the link:


Welcome to this International Delphi Study on Clinical Diagnosis of Lumbar Spinal Stenosis! 


The purpose of this study is to obtain information about what diagnostic tests are most important when confirming whether a patient has clinical lumbar spinal stenosis (LSS).  You may have previously participated in the first Delphi Study by our group focusing on history, signs, and symptoms of clinical LSS.


For this survey, you will be provided with details about a patient’s history, signs, and symptoms.


You will then be asked to choose, from a list of diagnostic tests, which you would want to conduct first to confirm a diagnosis of clinical LSS. You will then be asked to rate your level of certainty based on the knowledge you have obtained thus far. This process will repeat up to ten (10) times until your maximal level of certainty is reached. The study is expected to take 7 minutes.


The researchers have obtained your contact information for recruitment purposes only, and will not have any way of knowing who completed the survey.


What is in it for you?


The final outcome of this study will be an expert consensus on the clinical criteria for lumbar spinal stenosis.


Thank you!


Christy Tomkins-Lane, PhD


Co-Chair, International Taskforce on Diagnosis and Management of Lumbar Spinal Stenosis