Treating meniscal tears

Commonly done along with ACL repairs
Vertical and peripheral tears are located in peripheral one third (vascular zone)

Non-operative:
Partial thickness tear involving less than 50% of meniscal width
Vertical or oblique full thickness tear less than 5 mm in size

Partial meniscectomy:
To treat complex tears, degenerative tears, large radial and oblique tears, avsacular tears, tears associated with unstable ACL tear

Meniscal repair:
Attempted for LM as it is important for load transmission
Horizontal tears are not repaired
Peripheral tear within 1-2mm of meniscosynovial junction, involving posterior thirds of menisci
Rim width up to 5 mm

Other techniques:
Fibrin clot, abrasion of perimeniscal syunovium, meniscal rasping, meniscal transplantation

Other points:
Peripheral vertical tears: Primary meniscal repair
Horizontal tears extending to avascular zone: partial meniscectomy
Bucket-handle tears: partial meniscectomy or meniscal repair. Excision if associated significant radial tear, meniscal rim more than 5 mm extending into avascular zone or chronic
Radial tears: trimming the anterior and posterior leaves
Oblique/flap tears: Partial meninscectomy with transection through the base and the residual grade 3 signal after resection remaining
Unstable discoid meniscus: saucerization or partial meniscectomy. The Wrisberg-ligamnet type may need complete meniscectomy as it is prone to displacement into intercondylar notch