Stretching Alone Can Change P1 Bone Shape in Patients with Camptodactyly
Filed under Reviews
Woo Hong, S. Kim, J., Sang Kwon, O., Ho Lee, M., Sik Gong, H., Hyun Baek, G., (2019). Radiographic Remodeling of the Proximal Phalangeal Head Using a Stretching Exercise in Patients With Camptodactyly. J Hand Surg Am, 1.e1-1.e10
The Skinny – Camptodactyly is a congenital, nontraumatic flexion contracture of the PIP in fingers other than the thumb. Type 1 Camptodactyly ( Isolated anomaly in children <36 months) also includes volarly angulated and beak-shaped flat proximal phalangeal head. This study investigated the impact of a stretching-only camptodactyly treatment plan on restoration of Proximal Phalangeal head angulation as well as joint contracture.
In The Weeds – In a retrospective cohort study using radiographic series, 48 digits in 20 patients <36 months with >12 months of follow up were studies. 2 indexes were created to measure Head Angle (HA) and Head Triangle Ratio, or head shape (HTR).
Camptodactyly Stretches: Parents conducted a minimum of 20 sessions/day of a minimum of 5 minutes/session on affected fingers. Wrist and MCP were held in extension to increase FDS and FDP tension while force was applied to DIP joint flexion crease. This was done for 12 months.

Results: “roundness and concentricity of the proximal phalangeal head was restored in all cases” with statistical significance. Flexion contracture of the PIP decreased from 34 degrees ± 13 to 6 degrees ±7.

Bring it Home – Radiographic imaging indicates that stretching alone can restore the shape and angulation of the proximal phalangeal head and decrease flexion contracture. There was no correlation between contracture angle and boney shape throughout the study. This study had significant intra and inter-rater reliability for HA and HTR measures and control group illustrated that bone growth alone did not account for change in these parameters.
While other types (i.e. ages) of camptodactyly need to be studied, this study supports the strong value in stretching exercises for this diagnosis (camptodactyly exercises). Younger patients are particularly more receptive due to soft tissues being more extensile and the joint is more flexible. While the stretching protocol in this study is extensive, and may not be maintainable by many families, this approach is highly effective in achieving results non-surgically.
2 Comments
Leave a Comment
More To Read
Tennis Elbow and Graded Exercises
Lateral Elbow Pain with Graded Exercise Chronic tennis elbow with a supervised graded exercise protocol Özdinçler, A. R., Baktır, Z. S., Mutlu, E. K., & Koçyiğit, A. (2023). Chronic lateral elbow tendinopathy with a supervised graded exercise protocol. Journal of Hand Therapy, 36(4), 913–922. https://doi.org/10.1016/j.jht.2022.11.005 The Skinny: This study looked at the effectiveness of an…
Factors that influence orthosis adherence in patients with acute traumatic tendon injuries to the hand
Savaş, S., & Aydoğan, Ç. (2020). Factors affecting orthosis adherence after acute traumatic hand tendon repairs: A prospective cohort study. Journal of Hand Therapy, S0894113020301848. https://doi.org/10.1016/j.jht.2020.10.005 World Health Organization. (2003). Adherence to long-term therapies: evidence for action. World Health Organization. The Skinny Adherence to orthosis wear is vital for protecting healing tendons after a traumatic tendon…
Arthrodesis vs Arthroplasty in Thumb CMC OA
Piacenza A, Vittonetto D, Rossello MI, Testa M. Arthrodesis Versus Arthroplasty in Thumb Carpometacarpal Osteoarthritis: Impact on Maximal Voluntary Force, Endurance, and Accuracy of Pinch. J Hand Surg Am. 2021 May 24:S0363-5023(21)00199-4. doi: 10.1016/j.jhsa.2021.03.023. Epub ahead of print. PMID: 34045112. The Skinny: This was a retrospective study based on a convenience sample of individuals who…
Therapeutic Exercise vs Therapeutic Activity
What is the difference between therapeutic exercise vs therapeutic activity? Therapeutic exercise is billed as 97110 and Therapeutic activity is billed as 97530. Both are CPT codes that are commonly used in occupational and physical therapy billing. These codes are very similar and are often confused. So, when and what do you document for each…
Sign-up to Get Updates Straight to Your Inbox!
Sign up with us and we will send you regular blog posts on everything hand therapy, notices every time we upload new videos and tutorials, along with handout, protocols, and other useful information.
Is it possible for me to obtain a copy of the full article?
We can’t distribute the article itself, but the reference is provided so you can still find it. If you have a connection at a local university they may be able to pull it for you. Or Google Scholar will often have articles available in full print for viewing.