| Name of the Instrument/Tool | Thumb Disability Exam (TDX) |
| First Description |
Noback P, Lombardi J, Seetharaman M, Lee D, Strauch R, Rosenwasser M. Development and Validation of a Disease-Specific Questionnaire for Basal Joint Arthritis. J Wrist Surg. 2017;6:126–133. doi: 10.1055/s-0036-1593612. |
| Year | 2017 |
| Domains | |
| Concept of constructs | Pain, Functional status, Satisfaction |
| Population/Disease | Disease specific |
| Originally developed for | Osteoarthritis (OA) |
| Other rheumatic diseases where can be applied (only if validated) |
--- |
| Additional population with no rheumatic diseases |
No |
| Language: Originally published in | English |
| Available in Language | --- |
| REFERENCE IDENTIFICATION | |
| Author/s | Noback PC, Lombardi JM, Seetharaman M, Lee DH, Strauch RJ, Rosenwasser MP. |
| Title | Development and Validation of a Disease-Specific Questionnaire for Basal Joint Arthritis. |
| Journal | J Wrist Surg. |
| Year | 2017 |
| Vol | May |
| Num | 6 |
| Pages | 126-133 |
| Country | US |
| Language | English |
| Other references of interest | |
| Link | https://pubmed.ncbi.nlm.nih.gov/34563444/ |
| Brief Description |
Johnson L, Karau R, McGee C. Concurrent validity and precision of the thumb disability examination (TDX) in first carpometacarpal osteoarthritis. J Hand Ther. 2022 Jul-Sep;35(3):428-434. doi: 10.1016/j.jht.2021.07.002. Epub 2021 Sep 23. PMID: 34563444; PMCID: PMC8938293. |
| Instrument/Tool Translations References | |
| No other References. | |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Melvin P. Rosenwasser, MD |
| ttc@columbia.edu | |
| Address | Department of Orthopaedic Surgery, Trauma Training Center, PH-1164, 622 West 168th Street, New York, NY 10032, |
| Website | --- |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
The TDX is a questionnaire that contains 20 self-administered questions designed to assess function, pain, and satisfaction in individuals who are suspected of having thumb carpometacarpal osteoarthritis (CMC OA). The questionnaire evaluates the function of both one-handed and two-handed activities, as well as the level of pain and satisfaction experienced in the affected thumb during the past week. |
| Number of Items | 20 |
| Range | All questions are rated on a scale of one to five |
| Responses options/scale |
No |
| Developed for | --- |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
The TDX questionnaire can be scored as a whole or by subsection, and the scores range from zero to 100, with a score of zero indicating the least amount of disability. |
| Score Interpretation | A lower score indicates better function, no pain, and higher satisfaction |
| Cut-off points | --- |
| Cut-off points applied to | --- |
| Smallest detectable change if described | --- |
| Smallest detectable change applied to | --- |
| Completion time by the patient | 2.5 minutes |
| Scoring time by the assessor | - minutes |
| Training to score | Not necessary |
| Strengths | Easy to use, Useful in clinical practice & research |
| Limitations | --- |
| OTHER COMMENTS | |
| Other Comments | --- |