Fierce 5 modification due to Lower back issues

[MexicanTroll]

Due to issues I have in my lower back I am unable to perform certain excercises in the Fierce 5 novice fullbody routine (the ones involving hinging at the hips / a lot of stress on lower back), but I created this modification by replacing the excercises that I cannot perform with other excercises that train the same muscles.
Can I make decent progress with the following routine?

Workout A: (Changes: Squat replaced with Leg press, pendlay row )
Leg Press: 3x5
Bench: 3x5
Pendlay Row laying on bench: 3x8
Face pulls: 3x10
Calf raises 2x15/Tricep pressdowns 2x10 Superset

Workout B: (Changes: Front squat & RDL replaced with leg curl,extension and cable row)
Leg extensions: 3x10
Leg curl: 3x10
Overhead Press 3x5
Seated cable row: 3x8
Lat Pulldowns 3x8
Ab work 2x15/Bicep curls 2x10 Superset

Let me know if anyone has any suggestions? I know it's obviously not going to be as good as the original routine but hopefully I can still make decent gains with it?

[OnePoundFish00]

I think it's good...

[leidenesLK]

I would just replace all squat variations with a leg press, all hip hinge movements with a leg curl and all bent rows with a chest supported or cable row. Don't sub front squats with leg extensions, that's just a bad trade. Just double up on the leg press IMO.

[MexicanTroll]

I would just replace all squat variations with a leg press, all hip hinge movements with a leg curl and all bent rows with a chest supported or cable row. Don't sub front squats with leg extensions, that's just a bad trade. Just double up on the leg press IMO.

So it would look like this?
What abour reps and sets, is this good?

Workout A:
Leg Press: 3x8
Bench: 3x5
One arm dumbell row: 3x8
Face pulls: 3x10
Calf raises 2x15/Tricep pressdowns 2x10 Superset

Workout B:
Leg Press: 3x8
Leg curl: 3x10
Overhead Press 3x5
Seated cable row: 3x8
Lat Pulldowns 3x8
Ab work 2x15/Bicep curls 2x10 Superset

[leidenesLK]

So it would look like this?
What abour reps and sets, is this good?

Workout A:
Leg Press: 3x8
Bench: 3x5
One arm dumbell row: 3x8
Face pulls: 3x10
Calf raises 2x15/Tricep pressdowns 2x10 Superset

Workout B:
Leg Press: 3x8
Leg curl: 3x10
Overhead Press 3x5
Seated cable row: 3x8
Lat Pulldowns 3x8
Ab work 2x15/Bicep curls 2x10 Superset

Yes that's fine until your lower back heals.

[sooby]

If you have lower back issues I would honestly avoid both leg press and leg curls.

I would opt for a reverse lunge/split squat

[leidenesLK]

If you have lower back issues I would honestly avoid both leg press and leg curls.

I would opt for a reverse lunge/split squat

Fair enough. He mentioned those exercises as possible subs he was able to do so I just assumed they weren't causing him any problems. Good suggestion with the lunges/split squats.