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Save the Joint

Osteochondral Lesions of the Talus: Joint-Preserving Cartilage Repair

A deep, persistent ache inside the ankle. Clicking or catching. Swelling that returns with every hard workout, months after a sprain "healed." That's the signature of an osteochondral lesion of the talus — a pothole in the joint surface. Cartilage doesn't regrow on its own. Treated early and matched to the right technique, these lesions are fixable.

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By Victor R. Prisk, MD, FAAOS — Board-Certified Orthopaedic Surgeon, Foot & Ankle Fellowship (HSS) · Last updated August 2026

At a Glance

Best for
Cartilage & bone lesions (OLT)
Decision driver
Lesion size, depth & location
Toolkit
PowerPick, BMAC, grafts
Imaging
Weight-bearing CT on-site
Surgery
Outpatient, mostly arthroscopic
Impact sport
~4–6 months, technique-dependent

The Decision Tree

The Size of the Pothole Dictates the Treatment

There's no magic wand — there's a decision tree, and lesion size, depth, and location drive it.

Smaller lesions: marrow stimulation, done better

Instead of traditional microfracture awls, I use a PowerPick device to create precise, clean channels into the bone, letting marrow stem cells migrate into the defect and form repair cartilage — without the crushed, irregular bone edges classic microfracture can leave behind.

Adding biology: BMAC + cartilage matrix

For lesions that need more than channels, I combine bone marrow aspirate concentrate (BMAC) — your own concentrated marrow cells — with an allograft cartilage matrix, applied like spackle into the defect and sealed with fibrin glue.

Larger or cystic lesions: structural grafts

Deep lesions with bone cysts need bone, not just resurfacing — osteochondral autograft (OATS) from your own knee, or donor allograft plugs, restoring both the foundation and the surface. Full breakdown: Saving the Joint.

Why It Matters

The 25-Year-Old's Ankle vs. the 45-Year-Old's Fusion

Treated appropriately and early, most patients keep their own joint. The entire point of joint-preserving repair is to make sure the fusion-or-replacement conversation never happens.

The Diagnosis

Why Your Cartilage Injury Was Missed

OLTs hide. They're missed on initial sprain X-rays constantly, which is why persistent pain after a sprain deserves better imaging.

MRI

Characterizes the cartilage surface and the bone swelling beneath it.

Weight-bearing CT

In-office LineUP scan measures lesion size, depth, cysts — and your standing alignment.

Diagnostic injections

Confirm the joint is truly the pain source before any operation.

Alignment matters more than most patients are told: a cartilage repair in a poorly aligned ankle is a patch on a tire that's still out of balance. If your heel alignment overloads the lesion, we address it in the plan.

Why P.O.W.

The Full Cartilage Toolkit

Fellowship training at the Hospital for Special Surgery. The full cartilage toolkit — PowerPick, BMAC, allograft matrix, OATS — matched to your lesion instead of one technique for everyone.

  • Weight-bearing CT on-site for precise lesion mapping
  • Independent practice — operating privileges at both AHN and UPMC facilities
  • Athletes and dancers who need joints that last decades

Hurt at Work?

Talus injuries from falls and ladder accidents are classic work injuries. We treat workers' compensation cases and provide independent medical examinations.

The Comeback

Recovery: Staged, Then Strong

  1. Protect the repair

    Protected weight-bearing while the new surface matures; early motion to nourish the cartilage.

  2. Rebuild

    Progressive strengthening with our on-site P.O.W.ER physical therapy team.

  3. Return to impact

    Typically four to six months for marrow-stimulation techniques; longer for structural grafts.

  4. Protect the investment

    Honest numbers for your lesion, your sport, and your timeline — in writing.

Questions Patients Ask

Ankle Cartilage, Answered

What is an osteochondral lesion of the talus?
A damaged patch of cartilage and underlying bone on the talus, the bone at the center of your ankle joint — think of it as a pothole in the joint surface, usually caused by a sprain or fracture.
Is a talar OCD the same thing as an osteochondral lesion?
Yes — "OCD" (osteochondritis dissecans) of the talus, "OLT," and "osteochondral defect" all describe the same family of cartilage-and-bone lesions. Different names, same pothole.
Can an ankle cartilage injury heal on its own?
Cartilage has almost no blood supply and doesn't meaningfully regrow. Small, stable lesions can become quiet with activity changes, but the defect itself doesn't fill in — which is why persistent symptoms deserve treatment before the pothole grows.
Why was my cartilage injury missed after my sprain?
Standard X-rays often look normal with an OLT. It typically takes MRI or CT — ideally weight-bearing CT — to see the lesion. Pain that outlasts a sprain by months is the classic clue.
Will I need an ankle replacement or fusion?
The entire point of joint-preserving cartilage repair is to avoid that conversation. Treated appropriately and early, most patients keep their own joint.
Is this covered by insurance?
We are in-network with Highmark/BCBS, UPMC, Aetna, Cigna, United, most Medicare plans, and others. Call the office to confirm your specific plan.

Prisk Orthopaedics and Wellness

Save the Joint While There's a Joint to Save

Deep ankle ache, clicking, or swelling months after a sprain? Get the lesion mapped and the plan made.

Request an AppointmentCall (412) 525-7692

2490 Mosside Blvd, Monroeville, PA 15146  ·  Serving Pittsburgh, Monroeville, Murrysville, Plum, Penn Hills & Greensburg  ·  Insurance accepted