What it is
Growth plate injuries of the fingers and thumb involve the physes at the base of the small bones of the hand. They follow a jammed finger, a forced bend, a fall, or a ball strike. Pain and swelling limit fine control. Early assessment protects alignment and motion while the plate heals.
Many patterns are stable and treated with buddy strapping or splints. Displaced or open injuries need surgical review.
What happens when it occurs
Force across the joint separates or compresses the growth plate. When alignment is maintained, protection and early motion produce good results. When displacement is present, reduction and security are required. Nail bed injuries are treated promptly to protect the plate.
Common causes and risk factors
- Ball sports with finger jams or hyperextension
- Falls during play or cycling
- Contact sport and goalkeeping incidents
Who is most affected
Children and adolescents in school and club sport. Dominant hands are often involved.
Typical symptoms
- Pain and swelling at the joint or base of the finger or thumb
- Bruising and tenderness, reduced motion
- Deformity or rotation in displaced patterns
When to seek care
Immediately after an injury with deformity, open wounds near the nail, numbness, or marked swelling. Seek review if motion does not improve within a few days.
How we diagnose
History, examination, and X-rays in several views. Stress testing is used only after imaging and only when safe. The nail bed and skin are inspected for open injuries.
Management
- Buddy strapping or protective splints for stable patterns
- Hand therapy for early safe motion and tendon glides
- Strength and dexterity drills once the pain settles
- Surgical reduction and fixation for displaced or unstable injuries
Rehabilitation milestones
Phase 1 weeks 0 to 2: protection, swelling control, gentle motion within limits.
Phase 2 weeks 2 to 6: increase range, begin light strength and dexterity, scar care where needed.
Phase 3 weeks 6 to 12: functional strength, grip and pinch, sport skills as comfort allows.
Readiness to progress
- Pain and swelling are trending down
- Safe alignment and healing as advised
- Dexterity and grip targets met for age and tasks
Prevention
- Teach ball handling and catching technique
- Use sport‑specific protective taping during early return
- Maintain general hand and forearm strength
Australia snapshot
- Common in school and club sport across Australia
- Goalkeepers and ball sports feature in presentations
- Most return fully with early protection and hand therapy when needed
Latest insights
Protect alignment first, then move early to prevent stiffness.
Injuries to the nail bed near the growth plate require prompt care.
