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
Occupation Based Interventions in Hand Therapy
Keeping Occupation Based Interventions in Hand Therapy By: Tristany Hightower Are your treatments occupation based? Do you tailor your activity choices to fit the needs of each patient? As occupational therapists, we should be specialists in creating goals and interventions that are directed at returning our patients to meaningful occupations. Too often, hand therapy can…
Read MoreSplinting and Stretch Protocol for Pediatric Trigger Thumb
Tan, A. C., Lam, K. S., & Lee, E. H. (2002). The Treatment Outcome of Trigger Thumb in Children. Journal of Pediatric Orthopaedics B, 11(3), 256-259. The Skinny:Pediatric trigger thumb is a “relatively uncommon” condition of unknown origins. Studies have indicated that spontaneous recovery of trigger thumb is around 25-40%, and chances increase with age.…
Read MorePlace-and-Hold Versus Active Mobilization Therapy After Flexor Tendon Repair
Title: Passive Mobilization With Place-and-Hold Versus Active Mobilization Therapy After Flexor Tendon Repair: 5-Year Minimum Follow-Up of a Randomized Controlled Trial Article Review By: Tommi Hintnaus Reference: Chevalley, S., Wangberg, V., Ahlen, M., Stromberg, J., & Bjorkman, A. (2024, October 4). Passive Mobilization With Place-and-Hold Versus Active Mobilization Therapy After Flexor Tendon Repair: 5-Year Minimum…
Read MoreCMC Arthritis Orthosis in the Hand: Mechanics and Purpose
One of the most common diagnoses we see in hand therapy is osteoarthritis of the 1st carpo-metacarpal joint where the metacarpal articulates with the trapezium. Also known as basal joint arthritis (CMC arthritis), this causes pain, joint deformity, loss of strength and loss of function. Patients come to us looking for relief of symptoms and…
Read MoreSign-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.