MRI Left Knee - Report Summary & Management Plan

Report Summary (1.5T MRI, Left Knee)

• Medial meniscus posterior root tear with partial avulsion and medial extrusion - this is the most significant finding
• Medial compartment osteoarthritis (cartilage loss + osteophytes + joint space narrowing)
• Patellofemoral osteoarthritis with significant patellar cartilage thinning
• Secondary reactive Baker's cyst (consequence of the root tear/OA)
• ACL mucoid/reactive oedema (intact)

Management Plan

Step 1 - Assess the Patient

• Patient age and activity level
• Acuity - is this an acute tear or chronic/degenerative?
• Degree of OA - the MRI already shows significant medial compartment OA
• Severity of symptoms - pain, locking, swelling, functional limitation
• BMI (obesity is a risk factor for OA progression and root tear)

Step 2 - Immediate Conservative Management

1. Activity modification - avoid high-impact loading, deep squatting, climbing stairs excessively
2. Weight reduction if BMI >25 (strong evidence for slowing OA progression)
3. Physical therapy
   • Quadriceps and hamstring strengthening (especially VMO)
   • Low-impact aerobic exercise (cycling, swimming)
   • Range of motion and proprioception training
4. Analgesia
   • NSAIDs (first-line per AAOS guidelines - strong evidence)
   • Paracetamol as adjunct or if NSAIDs contraindicated
   • Topical NSAIDs for localized pain
5. Bracing - unloader brace (offloads medial compartment) for medial OA component
6. Intra-articular corticosteroid injection - for pain/swelling (inconclusive evidence per AAOS but widely used); can also address the Baker's cyst indirectly

Step 3 - Surgical Decision-Making (Meniscal Root Tear)

Step 4 - Additional Investigations

• Standing AP X-ray of both knees (45° flexion - Rosenberg view) - to quantify actual joint space narrowing and confirm OA grade (Kellgren-Lawrence scale)
• Full-length limb alignment X-ray - assess for varus/valgus malalignment (important if HTO being considered)
• Inflammatory markers (ESR, CRP, RF, ANA) - given synovial thickening and mild osteopenia, rule out inflammatory arthropathy
• DEXA scan - if osteoporosis suspected (periarticular osteopenia noted)

Step 5 - Follow-up and Monitoring

• If conservative: reassess at 6-8 weeks
• If no improvement after 3 months of conservative management, refer to orthopedic surgery for surgical planning
• MRI follow-up only if symptoms change significantly (not routinely needed)

Baker's Cyst Management

• Treat the underlying cause (root tear + OA) - the cyst will often regress
• If large and symptomatic: ultrasound-guided aspiration ± corticosteroid injection into the joint (not directly into the cyst)
• Surgical excision rarely required

Summary Algorithm

Root tear + OA on MRI
        |
   Clinical assessment
   (age, acuity, OA severity, symptoms)
        |
   ________________________________
   |                              |
Mild-moderate OA              Severe OA / Age >70
Younger/active patient        Failed conservative Rx
        |                              |
Conservative Rx 3 months       Surgical: TKA
        |
   Response?
   |         |
  Yes        No
Continue    Ortho referral:
            - Root repair (if candidate)
            - HTO ± repair
            - Partial meniscectomy

• Campbell's Operative Orthopaedics 15th Ed 2026, Osteoarthritis of the Knee - AAOS nonoperative recommendations (Table 10.4)
• Miller's Review of Orthopaedics 9th Edition, Meniscal Injuries - Meniscal Root Tear section
• Meta-analysis: Gurba et al. (2024), J Am Acad Orthop Surg Glob Res Rev [PMID: 39321043] - patient-reported outcomes after medial meniscus root tear repair

MRI Left Knee - Hinglish mein Samjhiye

MRI mein kya mila? (Findings)

• Jab root tear hota hai, meniscus ka pura shock-absorbing kaam band ho jaata hai
• Yeh practically meniscus ko nikaal dene (meniscectomy) jaisa effect deta hai
• Isse ghutne ki cartilage tezi se ghiste hai

Baaki findings ek-ek karke:

• Andar wali side (medial compartment) ki cartilage kaafi ghis gayi hai - femur aur tibia dono taraf se
• Kneecap (patella) ki cartilage bhi significantly ghis gayi hai, khaaskar neeche ki taraf
• Chhote-chhote holes bhi ban gaye hain cartilage ke neeche (subchondral cysts)

• Haddiyon ke kinaron pe osteophytes (bone spurs/kaante) ban gaye hain
• Andar wali side ka joint space kam ho gaya hai
• Haddi thodi kamzor (osteopenia) bhi lag rahi hai
• Kuch jagah haddi mein sujan (marrow oedema) bhi hai

• Ghutne ke peeche ek choti si theli ban gayi hai jisme paani bhara hua hai - size hai 20 x 10 mm, lambaai 48 mm
• Yeh cyst automatically banti hai jab ghutne mein andar se paani ya sujan hoti hai
• Isse ghutne ke peeche "kuch bhara hua" ya tight feel hota hai

• Thodi si sujan (oedema) hai lekin tuta nahi hai - intact hai
• Chinta ki baat nahi

• PCL (peeche wali ligament) - Normal
• LCL, MCL (side wali ligaments) - Normal
• Muscles, tendons sab - Normal
• Thoda paani ghutne mein bhi hai (effusion) aur andar ki jhilli (synovium) thodi moti ho gayi hai

Short mein diagnosis:

Medial Meniscus Root Tear + Medial Compartment Osteoarthritis + Patellofemoral Osteoarthritis + Secondary Baker's Cyst

Ilaj ka plan kya hoga? (Management Plan)

Pehle doctor ko kya puchna chahiye:

• Mareez ki umar aur wajan kitna hai?
• Yeh chot purani hai ya nayi?
• Kitna dard hai, chalna-phirna ho raha hai ya nahi?
• Koi looping/locking (ghutna fas jaana) toh nahi?

Pehla kadam - Bina operation ke ilaj (Conservative Management)

Doosra kadam - Operation ki zaroorat kab?

• Umar kam ho + chot nayi ho + OA zyada nahi hai - toh Arthroscopic Pullout Repair (meniscus ko wapis bone se jodte hain special sutures se) - yeh best option hai
• Isse OA aage badna ruk sakta hai
• Umar zyada ho ya OA bahut badh gaya ho - toh pehle conservative try karo 3 mahine, phir:
  • Partial Meniscectomy (tuta hua hissa kaatna)
  • Ya agar bahut zyada OA hai toh Total Knee Replacement (TKR/TKA)
• Agar pair thoda tedha (varus/valgus) bhi hai - toh pehle HTO (High Tibial Osteotomy) - haddi ki alignment theek karte hain

Teesra kadam - Kuch aur jaanch (Investigations)

• Standing X-ray dono ghutno ka - actual joint space kitna hai dekhne ke liye
• Full leg X-ray - pair seedha hai ya tedha
• Blood tests - ESR, CRP, RF, ANA - kahi andar se inflammation/arthritis toh nahi
• DEXA scan - haddi ki density check karne ke liye (osteoporosis rule out)

Baker's Cyst ka kya karo?

• Jab tak andar ka cause (root tear + OA) theek nahi hoga, cyst apne aap se nahi jayegi
• Agar bahut takleef de toh ultrasound se paani nikaalna + steroid injection ghutne mein
• Surgery bahut kam cases mein chahiye hoti hai

Ek line mein samjhiye:

Aapke ghutne mein ek important cushion (meniscus) ka anchor toot gaya hai jiski wajah se andar ki cartilage ghis rahi hai aur ghutne mein dard/sujan ho rahi hai. Abhi physiotherapy + dard ki dawai + wajan control shuru karo. Agar 3 mahine mein fark na pade, ya umar aur OA ki severity ke hisaab se, operation (meniscus repair ya knee replacement) ka option consider hoga.