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Check out Lasse's website here: https://www.lasselempainen.fi/?lang=en

In this episode, Brodie sits down with world-leading orthopedic surgeon Dr. Lasse Lempainen, a specialist in complex hamstring injuries, to answer one of the most confusing and anxiety-provoking questions runners face:

“How do I know if I actually need surgery — or if rehab is still the right path?”

Drawing on decades of surgical experience and extensive research into hamstring avulsions and proximal hamstring tendinopathy (PHT), Dr. Lempainen walks through how he actually makes decisions in real clinical practice — not just what MRI scans show, but how symptoms, function, timelines, and rehab quality all fit together.

Together, Brodie and Lasse unpack the gray area that most runners live in: partial tears, chronic pain, mixed scan results, failed rehab attempts, and fear-based decision-making. The result is a balanced, evidence-informed discussion that helps runners understand where surgery fits — and where it doesn’t.

What You’ll Learn in This Episode:
How Surgeons Decide Who Actually Needs Surgery

• Why MRI findings alone are never enough
• The importance of correlating scans with clinical function and symptoms
• Why some complete avulsions heal well conservatively — and others don’t

Hamstring Avulsion vs Proximal Hamstring Tendinopathy (PHT)

• Key differences between acute avulsions, chronic avulsions, and tendinopathy
• Why not all “avulsions” are the same (1-tendon vs 3-tendon injuries)
• When retraction distance matters — and when it doesn’t

Critical Timing Windows

• Why acute avulsions should ideally be operated on within 2–3 weeks
• What happens when diagnosis is delayed
• When chronic injuries become harder (or impossible) to fully restore surgically

“Failed Rehab” — What That Really Means

• Why many runners are told they’ve “failed rehab” when they actually haven’t
• Common mistakes in conservative treatment (under-loading, poor progression)
• When even excellent rehab is unlikely to succeed due to tendon biology

What Surgery for PHT Actually Involves

• What surgeons look for during surgery beyond “tendon thickening”
• The role of semi-membranosus release, scar tissue, and sciatic nerve involvement
• Why surgeons often find structural issues not obvious on standard MRI

Common Pre- and Post-Op Mistakes

• Why under-diagnosis is one of the biggest pre-op risks
• Why returning to running too early post-op leads to setbacks
• The importance of fixing why the injury happened — not just repairing tissue

Key Takeaway

This episode helps you understand which group you fall into, without fear-based decisions or false hope.