Adduction Test | Carpometacarpal 1 Osteoarthritis | Thumb OA

Adduction Test | Carpometacarpal 1 Osteoarthritis | Thumb OA
Thumb osteoarthritis (OA) is a painful and debilitating condition that affects a large proportion of the adult population, with radiographic prevalence reaching 90% in both men and women by the age of 80. This condition can cause pain at the base of the thumb, progressive loss of thumb motion, weakness, and decreased coordination, which worsens over time.
Qualitative assessment of the history, physical examination, and radiographs are used to diagnose and treat thumb CMC arthritis. The location, duration, onset, frequency, intensity, and quality of the pain are all under consideration.
Gelberman et al. (2015) evaluated this test and found a sensitivity of 94% and specificity of 93% and inter-rater reliability Kappa coefficient of 0.79. Despite these excellent values the study represents several limitations for this novel assessment test and until further validation of this test in different settings has taken place, we give it a moderate clinical value.
Despite these excellent values the study represents several limitations for this novel assessment test and until further validation of this test in different settings has taken place, we give it a moderate clinical value.
To conduct the test, the patient is in sitting position across from the examiner. The patient’s hand is placed on the examination table with the elbow flexed to 90 degrees and the forearm in neutral rotation. While the examiner supports the patient’s ulnar side of the hand to maintain the wrist in neutral position and to prevent ulnar deviation, the other hand is placed such that the examiner’s thumb rests dorsally over the head of the thumb metacarpal.
Then the examiner firmly directs an adduction force downward onto the patient’s metacarpal head until the patient’s thumb metacarpal lies parallel to the mid axis of the index metacarpal or until a firm end-feel is reached.
The test is considered positive if the patient’s pain at the TMC joint is reproduced.
21 OF THE MOST USEFUL ORTHOPAEDIC TESTS IN CLINICAL PRACTICE
Other orthopedic tests to assess CMC1 osteoarthritis are:
- Grind Test
- Pressure Shear Test
- MC Extension Test
- MC Flexion Test
- Traction-Shift/Subluxation Relocation Test
- Extension Stress Test
References
BUY THE FULL PHYSIOTUTORS ASSESSMENT BOOK
- 600+ Pages e-Book
- Interactive Content (Direct Video Demonstration, PubMed articles)
- Statistical Values for all Special Tests from the latest research
- Clinical Value Recommendation
- Detailed descriptions & searchable
- Currently on Version 5.0 – Free lifetime updates
- Available in 🇬🇧 🇩🇪 🇫🇷 🇪🇸 🇮🇹 🇵🇹 🇹🇷
- And much more!
ALL ORTHOPEDIC TESTS IN ONE PLACE
What customers have to say about the Assessment E-Book
- Vince199225/04/20The Assessment E-Book This book helped me in my studying for my exam and in assessing my first patients. Awesome! Also for beginners!Simon Pagitz06/04/20The Assessment E-Book It’s an amazing Compilation! Congrats to all the work you have put in there. You’ll propably find all the test’s you’ve been looking for with propper explaination and source to doublecheck for you self. definetly a must have for every student, but it will also help an experienced practioner. Im looking forward to the lifelong updates on the topics.
Great work, guys - Jordi Burrut27/10/19The Assessment E-Book A must-have for all physiotherapists, osteopaths and manual therapists. The authors conducted an extensive research on assessment tests in manual therapy. I find it very easy to read. The more I read the more I learn. Thank you!Josh07/07/19The Assessment E-Book This book is great! It is very structured and detailed. It works extremely well on my Macbook and iPad.
- Polo_soa15/02/19The Assessment E-Book The best way to spend 80euros. Totally worth it. The amount of work you put behind this must have been absolutely huge. Every physical or physiotherapist should own it.
Congrats guys you’ve done an incredible job.
I’ve learnd a lot of new things and my approach to therapy in general have totally changed.
In one word: amazing. Keep going guys ! Best wishes from france.