Dr Mok Ying Ren
Consultant
Sports Surgery, NUH
Adj Asst Professor
NUS Med & NTU Med
Dr Mok is a Consultant in Sports Surgery at NUH, Singapore, specialising in ACL reconstruction. He trained in advanced technique at the Rizzoli Orthopaedic Institute in Bologna, Italy, and performs both over-the-top and conventional ACL reconstruction with LET for high-demand athletes.
What is the ACL?
How Do I Know If I Have Torn My ACL?
What to Do in the First Few Days After a Knee Injury
Racing to Full Knee Extension
Can ACL injuries be prevented?
"I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well." Psalm 139:14
Is NO Surgery an Option?
Can a Torn ACL Actually Heal?
Am I a Coper or a Non-Coper?
Risks of Non-Operative ACL Management
No Surgery: What Sports Can I Still Do?
What No-Surgery Looks Like, Step by Step
Cross Bracing: Why I Don't Currently Recommend It
The Psychology of Non-Operative ACL Rehab
Pivoting to Surgery: A Real Possibility, Not a Failure"To every thing there is a season, and a time to every purpose under heaven." Ecclesiastes 3:1
Do I Really Need ACL Reconstruction Surgery?
Does ACL Surgery Really Prevent Arthritis?
ACL Surgery Cost in Singapore: Public vs Private Hospitals Compared
The LEAP: Why I Add an Extra Step to Your ACL Reconstruction
Your ACL Graft: Autograft, Allograft, and Why Blood Supply MattersVascularized vs Devascularized ACL Grafts: What the Evidence ShowsSteps of Surgery Explained
Diagnostic Arthroscopy: The First Step How I Perform all-inside ACL ReconstructionHow I Repair other Structures
Meniscus
How the All-Inside Meniscus Repair Device WorksHow I Repair a Bucket Handle Meniscus TearHow I Repair a Meniscus Root TearHow I Do a Meniscus TransplantCartilage
How I Harvest BMAC and Repair a Cartilage DefectHow I Repair a Cartilage Defect (Gel Scaffold)Other Ligaments
How I Reconstruct the MCL (Medial Collateral Ligament)How I Reconstruct the MPFL (Medial Patellofemoral Ligament)NUH Video Series
NUH Video: ACL Surgical AnimationNUH Video: ACL Recon Explained + FAQNUH Video: Quads Tendon ACL LIVE SurgeryNUH ACL Pamphlet"So do not fear, for I am with you; do not be dismayed, for I am your God. I will strengthen you and help you; I will uphold you with my righteous right hand." Isaiah 41:10
Your Return to Sport Plan
Before Surgery
Phase 0: Getting Ready for ACL Surgery 
Neuromuscular Electrical Stimulation (NMES)
Pre-rehabilitation (Prehab)Early Post-Surgery (First 6 Weeks)
NUH Video: Phases 1 & 2
Phase 1 (First 2 Weeks): What to Expect
Quad Activation After ACL Surgery
Phase 2: 2–6 Weeks After ACL SurgeryPhase 2 Heel Pop: The Target to Achieve by 6 WeeksMid Post-Surgery (6 Weeks to 6 Months)
NUH Video: Phases 3 & 4
Phase 3: 6 Weeks to 3 Months After ACL Surgery
Phase 4: 3–6 Months After ACL Surgery
Late Post-Surgery (6 Months and Beyond)
NUH Video: Phases 5 & 6
Phase 5: Return to Running
Phase 6: Return to Training
The Psychology of Return to Sport After ACL Reconstruction"But those who hope in the LORD will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint." Isaiah 40:31
