Table 3.
Anatomical landmarks with corresponding visibility by the 30° optic and the needle arthroscope
| Medial compartment |
Central compartment |
Lateral compartment |
Patellofemoral compartment |
||||
|---|---|---|---|---|---|---|---|
| 30° optic | needle arthroscope | 30° optic | needle arthroscope | 30° optic | needle arthroscope | 30° optic | needle arthroscope |
| Posterior horn of the medial meniscus | Intercondylar region (ACLa/ PCLb) | Posterior horn of the lateral meniscus | Femoral trochlea | ||||
| 4.87 | 4.90 | 5.0 | 5.0 | 5.0 | 4.73 | 5.0 | 4.97 |
| Root of the posterior horn of medial meniscus | Tibial insertion ACL with ligamentum transversum | Root of the posterior horn of lateral meniscus | Patellofemoral joint | ||||
| 4.85 | 4.90 | 5.0 | 5.0 | 5.0 | 4.73 | 5.0 | 4.53 |
| Medial meniscus with pars intermedia and anterior horn | Tibial insertion of the PCL | Anterior horn of the lateral meniscus | Medial patellar rim with medial trochlear rim | ||||
| 5.0 | 5.0 | 5.0 | 4.98 | 5.0 | 5.0 | 5.0 | 4.85 |
| Medial recess | Femoral insertion of the ACL | Lateral joint space with popliteus tendon | Lateral patellar rim with lateral trochlear rim | ||||
| 5.0 | 4.90 | 5.0 | 5.0 | 5.0 | 4.93 | 5.0 | 4.90 |
| Posteromedial compartment / dorsomedial recessus | Popliteus tendon | Patellar apex and central trochlea | |||||
| 5.0 | 4.90 | 5.0 | 4.86 | 5.0 | 4.98 | ||
| Suprapatellar recess | |||||||
| 5.0 | 4.83 | ||||||
aAnterior cruciate ligament
bPosterior cruciate ligament