Specialty
ACL tears, meniscus tears, patellar dislocations, multi-ligament knee injuries, and cartilage damage in athletes — evaluated and treated by Dr. Sabrina Strickland at the Hospital for Special Surgery in New York. Sub-specialty expertise with patellofemoral instability, ACL tears in male and female athletes, osteochondritis dissecans and cartilage injury.
This is the hub page for athletic knee injuries. Athletic knee injuries include ACL tears (often with concurrent meniscus injury), meniscus tears, patellar dislocations and patellofemoral instability, MCL sprains, cartilage injuries from impact or shear, and patellar tendinopathy. The right next step depends on which structures are torn, the athlete's sport and level, age, and goals. If you already have a specific diagnosis, scroll the matrix below and click into the dedicated procedure page — ACL, meniscus, MPFL, patellar instability, MACI cartilage repair, or osteochondral allograft. If you do not yet have a diagnosis or have a complex multi-ligament injury, the rest of this page walks through the patterns by injury, by sport, and by athlete population. Dr. Sabrina Strickland is an orthopedic surgeon at the Hospital for Special Surgery with sub-specialty expertise in patellofemoral disorders, ACL tears in male and female athletes, osteochondritis dissecans, and cartilage restoration, and has been quoted on athletic knee trauma by major sports media outlets including NBC Sports.
This page is the overview hub for athletic knee injuries. It covers the common patterns, sport-specific injury profiles, the special considerations for female athletes and youth athletes, multi-ligament knee injuries, cartilage damage in athletes, the principles of return-to-sport rehabilitation, injury prevention, and links to the dedicated pages for each individual injury. If you already have a diagnosis — ACL tear, meniscus tear, patellar dislocation, MPFL injury, cartilage injury — the linked procedure pages have the surgical detail. This page is for context, comparison, and the broader athletic-population patterns.
The most common athletic knee injuries fall into seven categories. Each card below links to the dedicated procedure page with surgical detail, graft selection, and recovery specifics. This is the matrix to scan if you already know your diagnosis.
The signature high-impact knee injury in cutting and pivoting sport. Audible pop, immediate swelling, sense of instability, recurrent giving way in cutting and pivoting demand. Usually requires reconstruction in athletes returning to pivot sport.
ACL tear surgery →Acute (twisting injury, deep squat) or degenerative. Joint-line pain, mechanical catching or locking. Repair is preferred over meniscectomy whenever the tear pattern allows; meniscal allograft transplantation is considered for younger patients with prior subtotal meniscectomy.
Meniscal tear →The kneecap slips out of its trochlear groove. Common in young female athletes and patients with anatomical risk factors (trochlear dysplasia, patella alta, increased TT-TG distance). Recurrence after the first dislocation is common — especially before age 25.
Patellar instability →The medial patellofemoral ligament is almost always torn after a patellar dislocation event. MPFL reconstruction restores the primary medial soft-tissue restraint and is often combined with a tibial tubercle osteotomy when bony alignment is contributing to the instability.
MPFL reconstruction →Focal cartilage damage from impact, dislocation, ACL pivot-shift bone bruise, or shear. Cartilage restoration (MACI, OATS, osteochondral allograft) can resurface the damaged area in younger active patients with an otherwise healthy joint.
MACI cartilage repair →"Jumper's knee." Degenerative change in the patellar tendon at the lower pole of the kneecap from repetitive jumping, deceleration, and quadriceps loading. Eccentric loading rehabilitation is the foundation of care; surgery is reserved for refractory cases.
Anterior knee pain →Two or more major ligaments torn (ACL, PCL, MCL, posterolateral corner). High-energy mechanism — ski crashes, motor vehicle accidents, contact sport. Often represents a knee that has dislocated and spontaneously reduced. Sub-specialty management is appropriate.
Multi-ligament details ↓Valgus impact — soccer tackle, ski fall with knee buckling inward. Most isolated MCL sprains heal with bracing and structured rehabilitation. Combined ACL+MCL injuries are typically managed with MCL bracing first, then delayed ACL reconstruction at 4 to 6 weeks.
Multi-ligament context ↓Different sports produce different injury patterns. Knowing the patterns of your sport helps with both diagnosis and prevention. Patient stories on this site span skiers, snowboarders, climbers, dancers, runners, and recreational athletes — the matrix below covers the most common knee injuries by sport.
| Sport | Common knee injuries |
|---|---|
| Soccer | ACL tears (especially female players), meniscus tears, MCL sprains, patellar tendinopathy, contusions |
| Basketball | ACL tears, meniscus tears, patellar tendinopathy ("jumper's knee"), patellar dislocations, bone bruises from contact |
| Skiing | ACL tears (classic pattern: planted ski + valgus rotation), MCL sprains, multi-ligament knee injuries from high-energy crashes, lateral tibial plateau fractures |
| Snowboarding | Lower ACL injury rate than skiing because the feet are fixed to a single board (less torsional moment at the knee), but boundaries are not zero — falls onto a flexed knee or collisions still produce knee injuries |
| Volleyball | Patellar tendinopathy ("jumper's knee"), patellar dislocations, ACL tears in landing |
| Lacrosse, Field Hockey, Rugby | ACL tears, meniscus tears, MCL injuries, contact-related multi-ligament injuries |
| Tennis & Pickleball | Meniscus tears (especially in masters players over 40), patellar tendinopathy, knee osteoarthritis flares |
| Dance & Gymnastics | Patellar instability, patellofemoral pain, hip-related knee pain, overuse cartilage damage from extreme range-of-motion loading |
| Running | Patellofemoral pain syndrome, IT band syndrome, patellar tendinopathy, meniscus tears (overuse pattern), stress reactions |
| Cycling | Patellofemoral pain (often bike-fit-related), iliotibial band syndrome, anterior knee overuse |
| Climbing & Bouldering | ACL injuries from falls (particularly bouldering with low pads), meniscus tears, patellar dislocations from heel hooks and twisting moves |
| Martial Arts | Meniscus tears, MCL injuries from grappling, ACL injuries from cuts and locks, patellar dislocations |
| Football | ACL tears, MCL injuries, multi-ligament knee injuries from contact, meniscus tears, patellar tendinopathy |
A multi-ligament knee injury involves two or more of the four major knee ligaments (ACL, PCL, MCL, posterolateral corner). Most are high-energy injuries — skiing crashes, motor vehicle accidents, contact sports tackles — and many represent a knee that has dislocated and spontaneously reduced. These injuries are surgical emergencies in the sense that vascular and nerve injury must be ruled out — a knee dislocation can injure the popliteal artery and the peroneal nerve — before any other planning. The classic example in mainstream sports media was Olympic gold medalist Lindsey Vonn's 2013 super-G crash at Schladming, which produced a torn ACL, torn MCL, and a lateral tibial plateau fracture in the same knee — the kind of combined injury Dr. Strickland described for NBC Sports on NBC Nightly News at the time.
Surgical management is staged based on the specific pattern:
These complex injuries warrant sub-specialty management. Recovery is longer than for isolated ligament injury — typically 9 to 12 months minimum for return to sport, and longer for the highest-grade combined injuries.
Female athletes face documented higher rates of certain knee injuries than their male counterparts, particularly in cutting and pivoting sport. Several factors contribute:
The clinical consequences:
The good news: targeted neuromuscular training programs (FIFA 11+, PEP program, Knäkontroll, and similar) reduce ACL injury rates in female athletes substantially when incorporated into team training, particularly when started early in athletic development. Prevention through structured warm-up and movement training is one of the highest-leverage interventions in female athlete sports medicine.
Youth and adolescent athletes have several special considerations:
Articular cartilage damage in athletes is one of the more under-diagnosed problems in sports knee medicine. Unlike a torn ACL or a bucket-handle meniscus, a focal cartilage injury can produce vague pain, intermittent swelling, and mechanical symptoms that are easy to write off as "post-traumatic" without a specific diagnosis. Athletic mechanisms that produce cartilage damage include:
For young, active patients with focal cartilage damage and an otherwise healthy joint, cartilage restoration procedures can resurface the damaged area and preserve the native joint — rather than waiting for the diffuse arthritis that would otherwise force a partial or total knee replacement decades later. The choice depends on defect size, depth, and whether bone is involved — see MACI cartilage repair for autologous chondrocyte implantation and cartilage transplantation for OATS and osteochondral allograft. Dr. Strickland's commentary on challenging cartilage injuries in athletes was featured on The Sports Doc Podcast at AOSSM 2023, alongside Dr. Seth Sherman.
Athletic knee injuries to professional athletes get covered in mainstream sports media, and the public understanding that gets shaped by that coverage matters — for athletes facing the same injury, for parents of young athletes deciding whether to push for early reconstruction, for the cultural understanding of return-to-sport timelines. Dr. Strickland has been quoted in major outlets on athletic knee trauma:
The pattern in both cases — a public, high-profile athlete returning from a complex knee injury — is the same pattern Dr. Strickland navigates with her own patients in NYC and Stamford every week, scaled to the demands of the individual sport.
Return to sport after any significant knee surgery is criteria-based, not calendar-based. The calendar gives the floor (graft biology and tissue healing); the criteria determine the ceiling (whether the athlete is ready to take rotational and impact loads without re-injury). The widely accepted return-to-sport criteria include:
Patients who return to sport before meeting these criteria have higher re-injury rates, regardless of how the knee "feels." This is one of the more reliable findings in the ACL re-tear literature, and it applies across the spectrum — ACL reconstruction, MPFL reconstruction, meniscal repair, cartilage restoration, and multi-ligament reconstruction.
Several evidence-based interventions reduce knee injury risk in athletes:
For athletes already injured and headed for surgery, the single most under-discussed factor in outcomes is what happens before surgery. Patients who arrive at surgery with full range of motion, minimal swelling, and good quadriceps activation have substantially better post-operative outcomes than patients who arrive with a stiff, swollen knee and inhibited quadriceps. Prehabilitation includes:
For most ACL, multi-ligament, and cartilage cases, this means several weeks between the injury and the operation — not because surgery should be delayed unnecessarily, but because the knee benefits from being well-prepared. The exception is irreducible mechanical block (e.g., a locked bucket-handle meniscus tear) or other situations that warrant earlier intervention.
For an athlete in the first hours and days after a significant knee injury:
Recovery timelines vary substantially across the spectrum of athletic knee surgery. The timelines below are typical — individual cases vary based on concurrent injuries, alignment, prior surgery, and patient adherence to the rehabilitation protocol. All of these are floors, not ceilings — final clearance to sport is criteria-based.
| Procedure | Typical return to sport |
|---|---|
| Arthroscopic partial meniscectomy | 4–8 weeks |
| Isolated MPFL reconstruction | 4–6 months |
| Meniscal repair | 3–4 months (longer for root repair) |
| Meniscal root repair | 4–6 months |
| ACL reconstruction (isolated) | 6–9 months |
| MPFL + tibial tubercle osteotomy | 6–9 months |
| Cartilage restoration (MACI, OATS, osteochondral allograft) | 9–18 months |
| Multi-ligament knee reconstruction | 9–12 months minimum |
| Meniscal allograft transplantation | 9–12 months |
Athletic knee surgery is well-established with predictable outcomes for most patients, but no surgery is risk-free. The risks reviewed at consultation include:
The specific risk profile for your case depends on your age, sport, the specific injury pattern, alignment, and any prior surgery on the knee. These are reviewed at consultation, and many of the risks above are modifiable by prehabilitation, surgical technique matched to the patient, and rehabilitation that follows the structured criteria-based protocol.
The three concerns we hear most often from athletes facing knee surgery, with honest answers:
Most patients return to their pre-injury level of activity after appropriate athletic knee surgery, but outcomes depend on individual factors and adherence to rehabilitation. The single largest predictor of getting back is following the structured criteria-based progression rather than rushing the timeline. Patients who skip phases or who return before meeting limb symmetry, hop testing, and psychological readiness criteria have higher re-injury rates — which is the worst outcome, not the fastest. We do not guarantee return to sport; we structure the path that gives the best chance of getting there.
Running progression typically starts between months 3 and 5 after isolated ACL reconstruction, around month 3 after meniscal repair (depending on the tear pattern), around month 4 after MPFL reconstruction, and around month 4 to 6 after partial meniscectomy. The progression is graduated — jogging on alternating days at a slow pace, building to continuous running, then to faster paces, then to hills and trails. The starting point and rate of progression depend on the procedure, concurrent work, and how the rehab is going. Cartilage restoration and multi-ligament cases run substantially later than the ACL timeline.
Fear of re-injury is one of the most common findings in post-operative athletic knee rehabilitation — it is what the ACL-RSI scale measures. The answer is not to ignore the fear but to address it: structured progression so each step is small, objective testing so the athlete knows the knee is meeting strength and hop-testing benchmarks rather than relying on how it "feels," and (in some cases) sports psychology support. Patients who push through fear without the objective benchmarks have higher re-tear rates; patients who use the benchmarks to calibrate their confidence return to sport more reliably.
Athletic knee surgery — ACL reconstruction, meniscus repair, MPFL reconstruction, multi-ligament reconstruction, and cartilage restoration — is covered by all major commercial insurance plans, Medicare, and most self-funded and union plans when the diagnosis and indication for surgery meet medical-necessity criteria. The variables that drive your specific out-of-pocket cost are:
Before surgery, our office verifies your benefits, obtains pre-authorization where required, and reviews the estimated out-of-pocket cost with you. If your plan doesn't cover a specific aspect, we discuss it openly before the operation, not after.
For benefits verification or to discuss self-pay arrangements, call us at (646) 960-7227 or contact the office.
A sub-specialty second opinion is particularly worth seeking when:
Dr. Strickland sees athletes at two offices, both of which work with patients traveling in from outside the immediate area:
For athletes traveling to New York from out of state for sub-specialty care, we coordinate consultation, imaging review, and surgery scheduling to minimize travel and align with the pre-operative work-up. Many out-of-state athletes travel to HSS specifically for revision ACL, complex multi-ligament knee reconstruction, MPFL+TTO for recurrent patellar instability, and cartilage restoration.
The point of all of the above — the imaging, the graft selection, the structured rehab, the criteria-based RTS — is to get the right athlete back to the activity that matters to them. A handful of patient stories on this site:
For the full library of athlete recovery stories, see Dr. Strickland's success stories.
The most common athletic knee injuries are ACL tears (often with concurrent meniscus injury), meniscus tears (acute or degenerative), patellar dislocations and patellofemoral instability, MCL sprains, cartilage injuries from impact or shear, and patellar tendinopathy ("jumper's knee"). Sport-specific patterns are common — soccer and basketball: ACL and meniscus; skiing: ACL plus MCL and sometimes lateral tibial plateau fracture; volleyball and basketball: patellar tendinopathy and patellar instability; gymnastics and dance: patellar instability and overuse cartilage damage.
Female athletes have several anatomical, hormonal, and neuromuscular factors that increase risk: a wider Q-angle, narrower intercondylar notch, more generalized ligamentous laxity, hormonal influences on tendon and ligament structure, and different landing and cutting biomechanics (more knee valgus, less hip control). The result is documented higher rates of non-contact ACL injuries and recurrent patellar dislocations in female pivot athletes compared to male counterparts. Targeted neuromuscular training programs reduce this risk significantly when incorporated early in athletic development.
A multi-ligament knee injury involves two or more of the four major knee ligaments (ACL, PCL, MCL, posterolateral corner). Most are high-energy injuries — skiing collisions, motor vehicle accidents, contact sports tackles — and many represent a knee that has dislocated and spontaneously reduced. These injuries require careful imaging (MRI plus stress radiographs), evaluation for vascular and nerve injury, and staged or single-stage reconstruction depending on the pattern. Sub-specialty management is appropriate.
Return to sport is criteria-based, not calendar-based. The criteria include limb symmetry index above 90% on strength testing, normal hop testing (single hop, triple hop, crossover hop, timed hop), psychological readiness measured by validated tools such as the ACL-RSI scale, sport-specific drill performance, and surgeon clearance. The calendar timeline depends on the procedure — typically 4 to 6 months after isolated MPFL reconstruction or partial meniscectomy, 6 to 9 months after ACL reconstruction or meniscal repair, and 9 to 18 months after cartilage restoration.
Yes. Skeletally immature pediatric and adolescent ACL tears can be reconstructed with techniques that protect the growth plates (physeal-sparing or partial transphyseal reconstructions). Skeletally mature adolescents and young adults are reconstructed with the same techniques used in adults, with graft selection chosen for the specific patient. Early reconstruction after diagnosis is generally favored in young athletes who plan to return to pivot sport, to protect the meniscus and cartilage from chronic instability damage.
Sport diversification — playing multiple sports throughout the year rather than year-round single-sport specialization — is associated with lower overuse injury rates, lower burnout rates, and longer athletic careers in published literature. Early single-sport specialization is one of the documented risk factors for overuse knee injuries (patellar tendinopathy, patellofemoral pain, stress reactions) in youth athletes. Most pediatric sports medicine guidelines recommend delaying single-sport specialization until at least mid-adolescence.
Dr. Strickland treats athletes at every level — youth and high school, collegiate, recreational, masters, and professional — across cutting and pivoting sports, endurance sports, and contact sports. Patient stories on this site include skiers, snowboarders, climbers, runners, dancers, recreational athletes returning to sport after injury, and youth athletes navigating ACL and patellar instability with open growth plates. Her sub-specialty interests include ACL tears in male and female athletes, patellofemoral instability, osteochondritis dissecans, and cartilage restoration.
Most athletic knee surgery — ACL reconstruction, meniscus repair, MPFL reconstruction, multi-ligament reconstruction, and cartilage restoration — is covered by major commercial insurance plans, Medicare, and most union and self-funded plans when the diagnosis and indication for surgery meet medical-necessity criteria. Out-of-pocket cost depends on the specific plan's deductible, coinsurance, in-network status of the surgeon, the facility (HSS or affiliated), and the anesthesia group. Benefits are verified before surgery so there are no surprises. Some biologics (PRP, certain cartilage augments) may not be covered.
Multi-ligament knee reconstruction is more complex than isolated ACL or MCL surgery. It requires evaluation for vascular and nerve injury (knee dislocation can injure the popliteal artery and peroneal nerve), staged or single-stage reconstruction based on the specific pattern (ACL+MCL, ACL+PCL, ACL+posterolateral corner, knee dislocation), and longer rehabilitation — typically 9 to 12 months minimum for return to sport. Sub-specialty care is appropriate.
For ACL reconstruction, graft selection (quadriceps, hamstring, BTB autograft, allograft), and BEAR implant candidacy, see ACL tear surgery. For meniscus repair, root repair, and meniscal allograft transplantation, see meniscal tear. For patellar dislocation evaluation and surgical options, see patellar instability and MPFL reconstruction surgery. For patellar pain and patellofemoral arthritis, see patellar pain and patellar arthritis. For cartilage repair after athletic injury, see MACI cartilage repair and cartilage transplantation. For patellar tendinopathy, chondromalacia, and anterior knee pain, see anterior knee pain. For alignment correction in revision or complex cases, see joint preservation and osteotomy. For arthritis management in older athletes, see knee arthritis. For PRP and biologic injection options, see PRP regenerative medicine. For computer-guided alignment in joint-replacement cases, see Mako robotic-assisted surgery. For Dr. Strickland's published research, including the JUPITER pediatric patellar instability study, see her research and publications.
Medical Disclaimer. This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Surgical and non-surgical orthopedic care should always be discussed with a board-certified orthopedic surgeon who has reviewed your imaging, history, and physical examination. Individual outcomes vary based on diagnosis, anatomy, comorbidities, and adherence to rehabilitation. The general descriptions of athletic knee injuries, anesthesia, and recovery timelines on this page reflect typical patient experience — your specific protocol is determined at consultation. Statements about return to sport are not guarantees; they describe the structured criteria-based path that gives the best chance of return.
If you are an athlete with an acute or chronic knee injury — or a parent helping a young athlete navigate a knee diagnosis — bring your imaging to a sub-specialty consultation in NYC or Stamford, CT.
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