Spinals in THA (Total Hip Arthroplasty)

Participants will have their patient records examined prospectively and complete up to four
telephone questionnaires after randomization to lidocaine or bupivacaine spinal anesthesia to
see how they are feeling after their total hip arthroplasty (THA). Transient neurological
symptoms, urinary retention, timing of full mobilization, incidence of hypotension, and
length of hospital stay will be recorded for both methods of spinal anesthesia for
comparison.

Inclusion Criteria:

- Radiographic evidence of symptomatic osteoarthritis in one or bilateral hips.
Osteoarthritis will be defined as pain with weight-bearing at the hip articulation
together with radiographic findings

- Indicated for total hip arthroplasty

- Agreement to undergo spinal anesthesia for surgery

Exclusion Criteria:

- Patient refusal to undergo spinal anesthesia

- Patients with a known history of lumbar or sacral spinal fusion.

- Patients with a known history of prostate, urological, or kidney surgery.

- Patients who need monitoring of urine output during surgery (including patients with
confirmed renal disease, renal failure, chronic renal insufficiency, or an indwelling
catheter at the time of surgery).

- Current infection at site of injection

- Women of child-bearing potential who are on Medicare (child-bearing potential will be
determined prior to surgery per Anesthesia standard of care)

- Hypovolemia

- Indeterminate neurologic disease

- Allergy or hypersensitivity to the study medications

- Currently taking any anti-coagulation medications or coagulopathic

- Increased intracranial pressure

- Subject is unable to make his/her own decision regarding the informed consent

- Subject is unable to read/understand English