Senior Consultant, Orthopaedics, Artemis Hospitals, Gurugram
Part 4 of 12 in Newer Advances in Arthroscopic Surgeries of Knee and Shoulder
Lateral Extra-Articular Tenodesis and Why ACL Reconstructions Fail
August 30, 2026
Not every ACL reconstruction needs to stand alone. A lateral extra-articular tenodesis (LET) is added when there is a high-grade pivot shift, a hypermobile or hyperextensile knee, a high-demand athlete in pivoting sports such as football or badminton, a complete anterior drawer, or an elevated tibial slope on X-ray, since the ACL is a central structure that does not provide much rotational stability on its own.
How LET is performed, and its role in children
The technique used is the modified Lemaire technique: a strip of iliotibial band is passed deep to the lateral collateral ligament and fixed to the femur, supplying rotational control that complements the intra-articular ACL graft. LET is also useful in very young patients where tunnels cannot safely be placed through the growth plate; an extra-articular tenodesis alone can stabilise the knee until the child is skeletally mature enough for formal ACL reconstruction.
Why ACL reconstructions fail
The most common reasons for failure include poor tunnel position (the femoral tunnel must sit posteriorly and inferiorly, and the tibial tunnel must not impinge on the intermeniscal ligament), missed meniscal pathology such as root tears and ramp lesions that are frequently overlooked on MRI and examination, an elevated tibial slope without added rotational stability, and a lack of rotational augmentation in very active athletes who return to pivoting sports before the graft has properly incorporated into bone. Missed meniscal injury in particular is the most common cause of persistent pain after an otherwise successful ACL reconstruction.
This article is based on a Jivo Masterclass session conducted by Dr. Vipin Maheshwari, Senior Consultant, Orthopaedics, Artemis Hospitals, Gurugram. The article has been summarised with the assistance of an AI tool from the original masterclass recording. Watch the full Masterclass recording
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This guide is based on a live Jivo Masterclass — Dr. Vipin Maheshwari taught doctors across Africa on August 30, 2026.
FROM THE LIVE Q&A
Dr. Abu Bakr (Nigeria)
How safe are arthroscopic surgeries? Will the patient's condition worsen?
Dr. Vipin Maheshwari
All surgery carries some residual risk, similar to how buying a car involves a small residual risk of a road accident that is rarely front of mind. The reassuring fact is that all the major blood vessels and nerves sit outside the knee and shoulder joint capsule, so as long as the anatomy is well understood and the surgery carefully planned, arthroscopy is one of the safest procedures available. Most arthroscopies are done as day-care procedures, with patients going home the same day.
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Frequently Asked Questions
Does the same safety apply to hip arthroscopy?▼
Hip arthroscopy is a little different because the hip is a deeper joint, but designated portals developed over many years of anatomical study make it safe as long as a surgeon sticks to those landmarks. Labral repairs, loose body removal and cartilage surgery can all be done through the hip arthroscope. Surgeons early in their hip arthroscopy experience can use a safer mini-open approach, a small skin incision leading to the joint before introducing the scope.
What can patients expect in terms of recovery timelines after, say, an ACL reconstruction?▼
With the newer all-inside technique and fiber tape augmentation, patients can weight-bear from day one using a walking aid for three to four days until pain settles, though supervised physiotherapy is still required. Full graft incorporation into bone takes about six weeks. Running and jogging can resume at three months, and return to sport is not advised before three months, since many failures happen when patients return to pivoting activity too soon.
With gym and fitness-related injuries increasingly common, which exercises carry the most risk for knees and shoulders?▼
For the knee, heavily loaded squats, especially with all the focus on upper body and inadequate lower limb conditioning, high-speed incline treadmill running, twisting exercises on a disc twister, and overloaded quadriceps extension machines are the most common causes of ACL ruptures and quadriceps or patellar tendon injuries. For the shoulder, wide-grip flies taken too far posteriorly can stress the joint, especially in anyone with a prior subluxation history. The most important message is to stop when the body signals pain rather than pushing through it.
What indicators should doctor partners in Africa and Central Asia watch for that would prompt a specialist opinion?▼
A thorough history of the mechanism of injury tells a doctor about 70% of what they need to know, since mild pain from ordinary walking is very different from a pop felt during sport followed by an immediate fall. Persistent pain despite conservative treatment should not be dismissed as non-compliance; something is usually being missed and warrants an MRI. Any significant mechanism of injury deserves a low threshold for imaging without delay, since ACL repair rather than reconstruction is possible if the patient is seen within two to three weeks of injury. Once an MRI is available and there is uncertainty about the findings, a second opinion through Jivo can confirm whether the patient needs conservative treatment, local surgery, or referral to Artemis.
What are rough cost estimates for these procedures for international patients?▼
A single ligament reconstruction, ACL or PCL, costs approximately $4,000 to $4,500, all-inclusive from admission to discharge. Meniscal debridement alone is $2,500 to $3,000, and meniscal repair ranges from $4,000 to $5,000 depending on the number of suture anchors used, at roughly $500 each. A simple Bankart repair for shoulder instability costs $4,000 to $5,000, with remplissage adding about $1,000. PRP injections without surgery run about $500 per injection, with 3 to 4 injections typically needed over roughly six weeks.
When is a lateral extra-articular tenodesis (LET) added to ACL reconstruction?▼
It is added when there is a high-grade pivot shift, a hypermobile or hyperextensile knee, a high-demand athlete in pivoting sports, a complete anterior drawer, or an elevated tibial slope, since these all increase the risk of the ACL graft failing on its own.
What is the most common cause of persistent pain after ACL reconstruction?▼
Missed meniscal pathology, particularly root tears and ramp lesions, which are frequently overlooked on MRI reports and clinical examination and lead to persistent pain even when the ACL reconstruction itself is technically successful.
In This Series: Newer Advances in Arthroscopic Surgeries of Knee and Shoulder
- 1.Newer Advances in Arthroscopic Surgeries of Knee and Shoulder
- 2.ACL Reconstruction: From Traditional Tunnels to the All-Inside Technique
- 3.Internal Bracing and Synthetic Grafts in ACL Surgery
- 4.Lateral Extra-Articular Tenodesis and Why ACL Reconstructions Fail
- 5.Meniscus Repair: From Excision to Preservation
- 6.Meniscal Transplant: Restoring a Knee That Has Lost Its Meniscus
- 7.Cartilage Repair: Microfracture, OATS and Autologous Chondrocyte Implantation
- 8.Rotator Cuff Repair and Patch Augmentation
- 9.Shoulder Instability: Bankart Repair, Remplissage and Latarjet
- 10.The Future of Arthroscopy: Biology, Technology and Personalisation
- 11.Recovery Timelines, Injury Prevention and When to Refer
- 12.Cost and Success Rates for Arthroscopic Surgery at Artemis