A remastered version was released on Pathogenic Records in 2001 as Psychosurgery and includes revised artwork, an expanded album booklet, and bonus tracks that include live versions of songs featuring then-lead vocalist Luke Easter as well as demos; the title was changed since co-founder and drummer Ted Kirkpatrick always felt that it should have been just one.

Retroactive Records released a Collector's Edition remaster on June 26, 2020, retaining the original album title and including an extended booklet as well as different bonus tracks.

"[1] Vocalist Guy Ritter also abandoned his King Diamond-like high-pitched falsetto in favor of a more melodic baritone register.

Using his pharmaceutical background, drummer Ted Kirkpatrick infused the lyrics with medical terminology to serve as metaphors for particular social issues such as heretical sects ("A Dog's Breakfast") which also included a jab at three teachers in the Word of Faith Movement (Kenneth Copeland, Benny Hinn, and Kenneth Hagin), discrimination of the developmentally delayed ("Broken Chromosomes"), and parental neglect ("Dysfunctional Domicile").

The song "Stereotaxic Atrocities," a sequel to the previous album's "Ark of Suffering," features a brief reprise of the original's signature guitar riff and criticizes laboratory testing of animals.

The album's final song, "Officium Defunctorum," is a doom metal piece written by guitarist/vocalist Gary Lenaire that addresses Jesus Christ's crucifixion.

[1] Metal Blade Records' wide distribution of Psycho Surgery increased Tourniquet's exposure and popularity.