The Cost of Robot-assisted Total Hip Arthroplasty

Comparing Safety and Hospital Charges to Conventional Total Hip Arthroplasty

Gregory J. Kirchner, MD, MPH; Alexander M. Lieber, MD; Brett Haislup, MD; Yehuda E. Kerbel, MD; Vincent M. Moretti, MD

Disclosures

J Am Acad Orthop Surg. 2021;29(14):609-615. 

In This Article

Results

We matched 758 (80.13%) RA-THA patients with 758 patients who underwent C-THA. The demographic characteristics of the cohorts are outlined in Table 1. Minor complications occurred in 97 (12.8%) of the C-THA patients and 164 (21.6%) of the RA-THA patients (P = 0.004, Table 2). Major complications occurred in 25 (3.3%) of the C-THA patients and 17 (2.2%) of patients in the RA-THA group (P = 0.729). No patient in our sample died.

Compared with the C-THA group, no difference was observed in the likelihood of experiencing a major complication in patients who underwent RA-THA (odds ratio [OR] = 0.732, 95% confidence interval [CI] = 0.320 to 1.672; Table 3). Similarly, the likelihood of experiencing a minor complication was similar between groups (OR = 1.294, 95% CI = 0.938 to 1.785). Independent of the technique, minor complications were less likely in men (0.398, 95% OR = 0.295 to 0.537) and patients aged 58 to 65 years (OR = 0.646, 95% CI = 0.434 to 0.962), whereas more likely in patients in the Midwest region (OR = 5.627, 95% CI = 3.227 to 9.814) and patients who underwent THA in 2011 (OR = 1.871, 95% CI = 1.020 to 3.434) and 2012 (OR = 1.861, 95% CI = 1.301 to 2.663).

The average inpatient hospital cost of a RA-THA was $20,046 (SD = 6,165) compared with $18,258 (SD = 6,147) for C-THA (P < 0.001; Table 4). The average LOS for RA-THA (x̄ = 2.69, SD = 1.25) was shorter than that of C-THA (x̄ = 2.82, SD = 1.18, P < 0.001).

Comments

3090D553-9492-4563-8681-AD288FA52ACE

processing....