A knee injury can mean many different things — a twisted ligament, a torn meniscus, a knock to the cartilage, or a kneecap that keeps giving way. The right treatment depends on exactly which structure is affected and how severe the damage is, which is why a proper clinical assessment matters more than guessing from symptoms alone.
What counts as a knee injury?
The knee is a hinge joint stabilised by four main ligaments — the ACL and PCL inside the joint, and the MCL and LCL on either side — with two C-shaped cartilage pads called menisci cushioning the femur and tibia. An injury can involve any one of these structures, or several together, along with the smooth articular cartilage that lines the joint surfaces. Common patterns include ligament sprains and tears, meniscus tears, kneecap (patellar) instability or pain, and cartilage damage from a direct impact.
Who this page is for
This page is for anyone with a recent twist, fall, sporting knock, or persistent knee pain that has not settled with rest — whether that is a young athlete with a suspected ACL tear, a weekend runner with knee cap pain, or someone with ongoing swelling and a sense that the knee is "giving way". If your knee locks, buckles, or swells repeatedly, it is worth having it assessed rather than working around it indefinitely.
Symptoms and warning signs
- Instability or giving way, particularly with pivoting or change of direction — often points to a ligament injury such as an ACL tear.
- Locking or catching during movement, which can suggest a meniscus tear trapped in the joint.
- Swelling that appears quickly after an injury (within hours) versus swelling that builds up gradually over a day — the timing can help indicate what has been injured.
- Pain around or behind the kneecap, worse with stairs, squatting, or sitting for long periods — typical of patellofemoral (knee cap) pain.
- A popping sensation at the moment of injury, which many patients describe with ACL tears.
Seek urgent assessment if the knee is unable to bear any weight, is grossly deformed, or if there is significant swelling with a fever — these can indicate a fracture, dislocation, or infection that needs prompt attention rather than a routine outpatient appointment.
Non-surgical management first
Most knee injuries are managed conservatively in the first instance. This typically includes rest from the aggravating activity, ice and compression to control acute swelling, a supportive brace where the joint feels unstable, and a structured course of physiotherapy focused on regaining strength in the quadriceps and hamstrings that support the joint. /physiotherapy-services/ at the clinic are built around this kind of graded strengthening programme. Anti-inflammatory medication and, occasionally, a joint injection may be used for pain and swelling control while rehabilitation progresses. Many ligament sprains, partial tears, and stable meniscus tears improve significantly with this approach alone.
When surgery is considered
Surgery becomes a more serious option when there is genuine mechanical instability (the knee repeatedly gives way despite rehabilitation), a meniscus tear that is causing locking or is in a zone unlikely to heal on its own, or cartilage damage significant enough to affect joint function. Depending on the structure involved, options range from arthroscopic (keyhole) repair of the meniscus or cartilage to ligament reconstruction using a graft. If the injury has progressed to significant joint wear, it may overlap with /osteoarthritis/, and if damage is confined to one compartment of the joint, /partial-knee-replacement/ may eventually be discussed rather than reconstruction.
What arthroscopic and ligament surgery involves
Most knee injury surgery today is performed arthroscopically — through small incisions using a camera and fine instruments — which allows the surgeon to directly visualise the torn ligament, meniscus, or cartilage and treat it with less disruption to the surrounding tissue than an open approach. Ligament reconstruction typically uses a tendon graft to recreate the torn ligament's function, secured with fixation devices inside the bone. Dr. Juilee Mhatre Nair will explain which technique and graft option, if any, suits your specific injury pattern and activity goals during consultation.
What influences the cost of treatment
Patients often ask about the cost of ACL reconstruction or cartilage repair surgery. The true cost depends on several factors: the type of graft or implant used, whether the procedure is done in a day-care setting or requires a longer hospital stay, the anaesthesia and operating theatre charges, the physiotherapy and rehabilitation plan that follows, and your insurance or cashless coverage. Because every patient's injury and treatment plan differs, we do not publish a fixed price on this page — call or WhatsApp the clinic and our team will help you get a personalised estimate once your case has been assessed.
Recovery phases
Recovery timelines vary by structure and technique, but generally follow a pattern: an early phase focused on protecting the repair and controlling swelling, a middle phase of progressive strengthening and range-of-motion work, and a later phase of sport- or activity-specific rehabilitation before a full return. Your physiotherapy team will guide you through each phase and adjust pace based on how your knee responds — there is no single fixed number of weeks that applies to every patient.
Risks, discussed honestly
As with any orthopaedic procedure, arthroscopic and ligament surgery carry risks including infection, stiffness, graft failure or re-tear, and the possibility that symptoms do not fully resolve. Your surgeon will discuss the specific risks relevant to your injury and overall health before you decide on surgery, and will explain what can be done to reduce them.
What a consultation involves
A first visit usually includes a detailed history of how the injury happened, a physical examination testing the knee's stability and range of motion, and a review of any X-rays or MRI you already have (or a recommendation for imaging if you don't). Dr. Juilee Mhatre Nair sees patients at /spine-and-knee-clinic-kharghar/ and at /spine-and-knee-specialist-kopar-khairane/, and will lay out both conservative and surgical options honestly based on what she finds. You can also read more about her focus areas on the /dr-juilee-mhatre-nair/ profile page.
Frequently asked questions
It depends on which ligament is involved, how severe the tear is, and how active you need your knee to be. Partial tears and some complete tears in people with lower activity demands can sometimes be managed with bracing, physiotherapy and activity modification. A complete ACL tear in someone who wants to return to pivoting sports usually benefits from reconstruction, because the ligament itself does not reliably heal on its own. Dr. Juilee Mhatre Nair will assess the grade of injury, your knee's stability on examination, and your functional goals before recommending a path.
The cost of ACL reconstruction depends on factors such as the graft type used, the hospital or facility where surgery is performed, the length of hospital stay, anaesthesia charges, implants, and the physiotherapy and rehabilitation plan afterward. Insurance or cashless coverage can also affect what you pay out of pocket. Because these variables differ from patient to patient, we do not publish a fixed figure — call or WhatsApp NAIR Spine & Knee Clinic for a personalised estimate after your consultation and imaging review.
A meniscus tear often causes pain along the joint line, occasional catching or locking, and swelling that builds up after activity. Not every meniscus tear needs surgery — small, stable tears in the outer, well-vascularised part of the meniscus often settle with rest, physiotherapy and activity modification. Tears that cause mechanical locking, are in the inner avascular zone, or persist despite conservative care are more likely to need arthroscopic repair or trimming.
Recurring swelling usually means something inside the joint — a ligament, meniscus, or the cartilage surface — is being repeatedly irritated. It is worth having this properly assessed rather than only managing the swelling each time it flares. Dr. Juilee Mhatre Nair will examine the knee, review any prior scans, and may recommend fresh imaging to identify the underlying cause before deciding on treatment.
Most knee injuries are managed conservatively first: rest from aggravating activity, ice and compression for acute swelling, a knee brace or support for instability, targeted physiotherapy to rebuild strength around the joint, and appropriate pain relief. Weight management and low-impact conditioning also reduce load on an injured knee while it settles. Surgery is considered when conservative care has been genuinely tried and the knee remains unstable, painful, or mechanically limited.
The underlying structures — ligaments, meniscus, cartilage — are the same, but sports-related injuries often involve a specific mechanism (a twist, a direct blow, a sudden stop) that helps point to which structure is affected. Athletes and active patients also usually have a clear functional goal — returning to a sport or activity — which shapes how aggressively rehabilitation and any surgical decision are approached.
Talk to a spine and joint specialist
Share your symptoms, reports or scans and our team will help you book a consultation with Dr. Vishnu Vikraman Nair or Dr. Juilee Mhatre Nair at the Navi Mumbai location most convenient for you.