Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026
The most important clinical decision with Talar Osteochondral Lesion: Diagnosis, Staging, and Treatment isn’t which treatment to choose — it’s identifying which subtype you have first. Our podiatrists see patients treated for the wrong subtype for months before the correct diagnosis leads to full resolution. Call (810) 206-1402 — expert podiatric care across Michigan.
A talar osteochondral lesion (OCD of the talus, osteochondral defect) is damage to the cartilage and underlying bone of the talus dome — the primary weight-bearing surface of the ankle joint. Most lesions result from ankle sprains or repetitive microtrauma. When conservative treatment fails, surgical options ranging from microfracture to cartilage grafting provide reliable outcomes for the right lesion type and size.
OCD Talus Staging (Berndt and Harty / MRI-Based)
| Stage | Findings | Stability | Typical Treatment |
|---|---|---|---|
| Stage I | Subchondral bone compression; MRI edema only; cartilage intact | Stable | Conservative 3-6 months; activity modification; boot |
| Stage II | Partial detachment; cartilage defect; fragment attached | Partially stable | Conservative first; arthroscopic debridement if fails |
| Stage III | Complete detachment; fragment in situ; cyst beneath | Unstable | Arthroscopic debridement + microfracture; fragment fixation if large |
| Stage IV | Displaced free fragment (loose body); cartilage loss | Loose | Fragment removal + microfracture; osteochondral graft if large defect |
Surgical Procedure Selection by Lesion Size
| Lesion Size | Recommended Procedure | Rationale | Success Rate |
|---|---|---|---|
| Under 15mm diameter (primary, small) | Arthroscopic microfracture | Stimulates fibrocartilage fill; minimally invasive; low cost | 75-85% good/excellent at 2-5 years |
| 15-20mm (larger primary) | Microfracture or autologous chondrocyte implantation (ACI) | Microfracture fibrocartilage less durable; ACI produces hyaline-like cartilage | ACI 75-90% at 5 years |
| Over 20mm or failed microfracture | OATS (osteochondral autograft transfer) or allograft | Transfers intact hyaline cartilage plug; fills large defect | 80-90% good/excellent; allograft data also strong |
| Cystic lesion with bone loss | Retrograde drilling + bone grafting + cartilage procedure | Addresses subchondral bone void; prevents collapse | Variable; depends on cyst size and location |
At Balance Foot & Ankle in Howell and Bloomfield Hills, we evaluate talar OCDs with MRI and weight-bearing CT for precise lesion mapping, and perform arthroscopic treatment with appropriate procedure selection based on lesion characteristics. Call (810) 206-1402.
American Academy of Orthopaedic Surgeons: Osteochondral Lesions of the Talus
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Doctor Answer
What is a talar osteochondral lesion and how is it diagnosed?
A talar osteochondral lesion (OCD) is an area of damaged cartilage and underlying bone on the dome of the talus, usually resulting from ankle sprains or repetitive microtrauma. It presents as deep ankle pain, swelling, and clicking. Diagnosis requires MRI for accurate staging and characterization. Treatment ranges from conservative immobilization for stable lesions to arthroscopic surgery for unstable or displaced fragments.
Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.