Prolotherapy for Osgood-Schlatter Disease
Osgood-Schlatter disease causes knee pain in active young people during growth spurts. When rest and time aren't enough, prolotherapy offers an evidence-based solution that can get young athletes back to sport faster.
What is Osgood-Schlatter Disease?
Osgood-Schlatter disease (OSD) is one of the most common causes of knee pain in growing adolescents. It affects the tibial tuberosity, the bony bump just below the kneecap where the patellar tendon attaches. During growth spurts, the bones grow faster than the muscles and tendons can adapt, creating excessive pulling force at this attachment point.
The condition causes pain, swelling and tenderness at the front of the knee, just below the kneecap. It's especially common in young athletes who play sports involving running, jumping and quick direction changes, such as soccer, basketball, volleyball, gymnastics and similar activities.
While OSD often resolves on its own after growth is complete, this can mean months or even years of limited activity. For dedicated young athletes, being told to "just rest and wait" isn't always a satisfactory answer, especially when they're missing seasons of their sport.
The Research Evidence
A landmark randomized controlled trial published in PEDIATRICS, one of the most respected pediatric medical journals, studied prolotherapy specifically for Osgood-Schlatter disease in young athletes.
This was the first rigorous RCT of prolotherapy in a pediatric population, and the results were impressive: prolotherapy with 12.5% dextrose significantly outperformed both lidocaine injection and usual care.
Study Details
- Participants: 54 adolescent athletes (ages 10-17) with 65 affected knees
- Condition: Recalcitrant OSD (failed at least 2 months of conservative care)
- Groups: Dextrose prolotherapy vs. lidocaine injection vs. supervised usual care
- Protocol: Monthly injections for 3 months
- Follow-up: 1 year
Dextrose patients able to play sport without limitation at 3 months
Dextrose-treated knees completely pain-free at 1 year
Dextrose patients asymptomatic at 3 months vs only 14% usual care
Detailed Results
At 3 Months
Unaltered Sport (NPPS <4)
Able to play sport without pain limiting activity:
Asymptomatic Sport (NPPS = 0)
Completely pain-free during sport:
The difference between dextrose and both other groups was statistically significant (p<0.01 vs usual care, p=0.006 vs lidocaine for asymptomatic sport).
At 1 Year
Dextrose-treated knees: asymptomatic sport
Lidocaine-only knees: asymptomatic sport
Usual care-only knees: asymptomatic sport
Important note: Sport dropout or inability to exercise occurred ONLY in the usual care group. All injection-treated athletes were able to continue participating in sports.
Why Prolotherapy Works for OSD
The Dextrose Difference
The study showed that dextrose prolotherapy was significantly more effective than lidocaine alone, indicating that the therapeutic effect isn't just from the needle itself. There's something specific about the dextrose that promotes healing.
Dextrose is thought to stimulate growth factor release and promote tissue repair at the damaged tendon-bone junction.
Safe in Young Patients
One concern with treating growing adolescents is safety. This study demonstrated that prolotherapy with a 27-gauge needle was safe and well-tolerated in patients as young as 10 years old.
No serious adverse events were reported, and all patients were able to continue their sport.
Who Should Consider Prolotherapy for OSD?
Good Candidates
- Young athletes (typically ages 10-17) with diagnosed OSD
- Symptoms that haven't resolved with 2+ months of rest and conservative care
- Athletes who need to return to sport
- Those who want to avoid prolonged inactivity
- Cases where pain is significantly affecting quality of life or activity level
Consider First
- Give conservative treatment a fair trial first (2 months)
- Mild cases often resolve with activity modification
- Ice, stretching and gradual activity resumption work for many
- Not every case of OSD requires intervention
- Discuss with parents; they should understand the options
Treatment Protocol
What to Expect
- 1 Initial assessment: We'll confirm the diagnosis and ensure prolotherapy is appropriate for your child.
- 2 Treatment series: Typically 3 monthly injections, as used in the PEDIATRICS study.
- 3 Activity: Gradual return to sport as symptoms allow during treatment.
- 4 Follow-up: Assessment at completion to ensure resolution.
The Injection
- Uses a small (27-gauge) needle
- 12.5% dextrose with 1% lidocaine
- Quick procedure (a few minutes)
- Well-tolerated by adolescents
- Some temporary soreness is normal
Questions from Parents
Is prolotherapy safe for my child?
The PEDIATRICS study specifically evaluated safety in adolescents ages 10-17. No serious adverse events were reported. The injection uses a small needle (27-gauge) and contains simple dextrose (sugar) mixed with lidocaine, both commonly used and well-understood substances. Temporary soreness at the injection site is normal and typically resolves within a few days.
Will my child be able to play during treatment?
In the study, athletes were allowed to gradually return to activity as tolerated during the treatment period. Unlike strict rest protocols, prolotherapy doesn't require complete sports avoidance. Most young patients can continue participating in their activities, with improvement allowing more comfortable participation as treatment progresses.
How does this compare to just waiting it out?
OSD does eventually resolve for most people once growth is complete, but this can take months to years. The study showed that at one year, only 14% of the usual care group was completely asymptomatic, compared to 84% of those who received dextrose prolotherapy. Additionally, some athletes in the usual care group had to drop out of sports entirely, which didn't happen in the injection groups.
What about surgery for OSD?
Surgery for OSD is rarely needed and typically reserved for severe cases that don't respond to other treatments after skeletal maturity. Given the excellent results with prolotherapy in the PEDIATRICS study (84% complete resolution at one year), it represents a much less invasive option that should be tried before considering surgical intervention.
Will the bump on my child's knee go away?
The bony prominence at the tibial tuberosity often remains even after pain resolves; this is true regardless of treatment. The goal of prolotherapy is to eliminate pain and allow return to full activity, not to change the bone structure. Most adults who had OSD as children have a slightly prominent tibial tuberosity that doesn't cause any symptoms.
Help Your Young Athlete Get Back in the Game
If your child has been struggling with Osgood-Schlatter disease that won't resolve with rest, prolotherapy may be the solution. Schedule a consultation to discuss whether this treatment is right for them.
Book OnlineReference
- Topol GA, Podesta LA, Reeves KD, Raya MF, Fullerton BD, Yeh HW. Hyperosmolar dextrose injection for recalcitrant Osgood-Schlatter disease. Pediatrics. 2011;128(5):e1121-e1128.