Elbow OCD
Osteochondritis Dissecans of the Capitellum
Little League Elbow - Expert care for young athletes
Understanding Elbow OCD
Osteochondritis dissecans (OCD) of the elbow is a condition primarily affecting young athletes between ages 11-17. The capitellum (lateral part of the distal humerus) is the most common site, accounting for over 90% of elbow OCD lesions.
At-Risk Athletes
- • Gymnasts: Most common group - repetitive weight-bearing through extended elbow
- • Baseball pitchers/throwers: "Little League elbow" - valgus stress causes radiocapitellar compression
- • Cheerleaders: Tumbling and stunting activities
- • Racquet sports: Repetitive loading
- • Age: Peak incidence 12-15 years
Classification & Staging
Lesion remains attached to underlying bone
MRI findings: Intact cartilage, no fluid beneath fragment
Prognosis: Good potential for healing, especially in young patients with open growth plates
Treatment: Often conservative
Lesion partially or completely detached
MRI findings: Fluid beneath fragment, cartilage breach
Prognosis: Poor healing potential without intervention
Treatment: Surgical - fixation, debridement, or reconstruction
Grade I
Thickening/irregularity of cartilage. Stable.
Grade II
Articular cartilage breach, low T2 rim. Unstable.
Grade III
High T2 rim (fluid), fragment in place. Unstable.
Grade IV
Displaced fragment / loose body. Unstable.
Clinical Presentation
Symptoms
Examination & Imaging
Physical Exam
Tenderness over radiocapitellar joint, loss of extension (often 5-15°), pain with forearm rotation
X-ray
AP, lateral, and radiocapitellar view. May show flattening, fragmentation, or radiolucency of capitellum
MRI
Gold standard for staging. Shows lesion size, stability (T2 signal beneath fragment), and cartilage status
Treatment Options
Best for: Stable lesions in young patients with open growth plates
- • Activity modification: Complete rest from throwing/gymnastics for 3-6 months
- • Protective bracing: May limit extension to reduce compression
- • Physical therapy: Maintain ROM, address muscle imbalances
- • Serial imaging: MRI at 3-month intervals to monitor healing
Success rate: 50-90% for stable lesions in skeletally immature patients. Lower success in older patients or larger lesions.
Indicated for unstable lesions, loose bodies, failed conservative treatment, or closed growth plates
Arthroscopic Drilling (Retrograde or Antegrade)
Stimulates healing by creating vascular channels to lesion. Best for intact cartilage, stable lesions. 80-90% success.
Fragment Fixation
For large, partially detached fragments with salvageable cartilage. Bioabsorbable pins or headless screws. Preserves native cartilage.
Debridement and Microfracture
For small, irreparable lesions. Remove loose fragment, stimulate fibrocartilage formation. Reasonable short-term results.
OATS (Osteochondral Autograft Transfer)
For larger lesions (>1cm) with significant bone loss. Plug of cartilage/bone from knee transferred to elbow. Good results in selected patients.
Osteochondral Allograft
For large defects. Cadaveric osteochondral plug. Avoids donor site morbidity.
Outcomes & Return to Sport
• Open growth plates (skeletally immature)
• Stable lesion on MRI
• Smaller lesion size
• Early detection and treatment
• Good compliance with activity restriction
• Closed growth plates
• Unstable or detached lesion
• Large lesion size (>50% of capitellum)
• Loose bodies present
• Long duration of symptoms
Return to Sport
Conservative treatment: 3-6 months after documented healing on MRI. Post-surgical: typically 4-6 months for arthroscopic procedures, 6-9 months for reconstruction. About 70-85% of athletes return to their previous level of sport.
Evidence & References
• Takahara M, et al. Classification, treatment, and outcome of osteochondritis dissecans of the humeral capitellum. JBJS Am 2007
• Mihata T, et al. Osteochondritis dissecans of the elbow. Clin Sports Med 2010
• Bexkens R, et al. Osteochondritis dissecans of the capitellum: Arthroscopic treatment and outcomes. Arthroscopy 2017
• Matsuura T, et al. Conservative treatment for osteochondritis dissecans of the humeral capitellum. Am J Sports Med 2008
Last Updated: January 2025 | Content reviewed by Dr. Deepthi Nandan Reddy, FRCS (Ortho)