Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Adductor Canal Block: Single Injection vs Catheter for Pain Management of Total Knee Arthroplasty - A Randomized, Unblinded, Non-Inferiority Trial
Brief Summary: This study investigates single injection adductor canal block (ACB) with or without intravenous dexamethasone and adductor canal catheter for pain management of total knee arthroplasty. This is a non-inferiority trial seeking to determine whether single injection ACB with dexamethasone is "no worse" than a continuous catheter.


Options:
A: Arm Label: dexamethasone; Type: N/A; Interventions: N/A | Arm Label: placebo; Type: N/A; Interventions: N/A
B: Arm Label: Gabapentin; Type: ACTIVE_COMPARATOR; Interventions: Drug: Gabapentin | Arm Label: ramosetron; Type: ACTIVE_COMPARATOR; Interventions: Drug: Ramosetron | Arm Label: Gabapentin and ramosetron; Type: ACTIVE_COMPARATOR; Interventions: Drug: Gabapentin and Ramosetron | Intervention Type: DRUG; Name: Gabapentin; Assigned to Arm(s): Gabapentin | Intervention Type: DRUG; Name: Ramosetron; Assigned to Arm(s): ramosetron | Intervention Type: DRUG; Name: Gabapentin and Ramosetron; Assigned to Arm(s): Gabapentin and ramosetron
C: Arm Label: Adductor Canal block; Type: ACTIVE_COMPARATOR; Interventions: Drug: Adductor canal block, Drug: Bupivacaine, Drug: Fentanyl, Drug: Ropivacaine 0.5% Injectable Solution | Arm Label: Adductor canal block with dexamethasone; Type: ACTIVE_COMPARATOR; Interventions: Drug: Adductor canal block with dexamethasone, Drug: Bupivacaine, Drug: Fentanyl, Drug: Ropivacaine 0.5% Injectable Solution, Drug: Dexamethasone | Arm Label: Adductor canal catheter; Type: ACTIVE_COMPARATOR; Interventions: Drug: Adductor canal catheter, Drug: Bupivacaine, Drug: Fentanyl, Drug: Ropivacaine 0.5% Injectable Solution | Intervention Type: DRUG; Name: Adductor canal block; Assigned to Arm(s): Adductor Canal block | Intervention Type: DRUG; Name: Adductor canal block with dexamethasone; Assigned to Arm(s): Adductor canal block with dexamethasone | Intervention Type: DRUG; Name: Adductor canal catheter; Assigned to Arm(s): Adductor canal catheter | Intervention Type: DRUG; Name: Bupivacaine; Assigned to Arm(s): Adductor Canal block, Adductor canal block with dexamethasone, Adductor canal catheter | Intervention Type: DRUG; Name: Fentanyl; Assigned to Arm(s): Adductor Canal block, Adductor canal block with dexamethasone, Adductor canal catheter | Intervention Type: DRUG; Name: Ropivacaine 0.5% Injectable Solution; Assigned to Arm(s): Adductor Canal block, Adductor canal block with dexamethasone, Adductor canal catheter | Intervention Type: DRUG; Name: Dexamethasone; Assigned to Arm(s): Adductor canal block with dexamethasone
D: Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Low dose APD421; Type: EXPERIMENTAL; Interventions: Drug: APD421 | Arm Label: Mid Dose APD421; Type: EXPERIMENTAL; Interventions: Drug: APD421 | Arm Label: High Dose APD421; Type: EXPERIMENTAL; Interventions: Drug: APD421 | Intervention Type: DRUG; Name: APD421; Assigned to Arm(s): High Dose APD421, Low dose APD421, Mid Dose APD421 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo

Answer: C