The Journal of the American Academy of Orthopaedic Surgeons · 2026
Postoperative Weight-bearing Status Is Not Associated With Patient Mortality After Geriatric Distal Femur Fracture.
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Haller Justin M, Lee Christopher, Brodke Dane, Perdue Paul, DeKeyser Graham, Working Zachary, Zhang Chong, El Naga Ashraf, Shymon Steven, Fairres Marshall, Walters Murphy, Gillon Hunter, Morellato John, Atassi Omar, O'Toole Robert, Marchand Lucas
Аннотация
BACKGROUND: To investigate the effect of immediate weight-bearing (WB) status on mortality in geriatric distal femur patients. Secondary aims included determining the effect of WB status on surgical complications and ambulatory ability at 90 days.
METHODS: This was a retrospective review of geriatric (age >60 years) patients with distal femur fracture (OTA/AO 33 A, 33C) from 9 level 1 trauma centers that underwent surgical fixation from 2012 to 2019. Mortality, ambulatory ability at 90 days, and surgical complications were compared between postoperative non-WB (NWB) versus WB (touch-down/partial/WB as tolerated) groups. A propensity-weighted regression model including demographics, tobacco-use, preinjury ambulatory status, injury mechanism, and American Society of Anesthesiologists classification was used to compare outcomes between the NWB and WB cohorts.
RESULTS: Four hundred four patients were included where most of the patients (72%) underwent open reduction, internal fixation and most of the patients were NWB after surgery (63%). Most of the patients (328/404, 81%) were discharged to a nursing facility. Older patients, patients with ground-level fall, and American Society of Anesthesiologists I/II patients were more likely to be WB. Six-month mortality was 14%. Sixty-nine percentage of patients were able to ambulate without human assistance by 90 days. In the propensity-weighted analysis, there was no association with WB and mortality (hazard ratio [HR], 1.50; confidence interval [CI, 0.77, 2.92]; P = 0.24). No association was observed between WB and deep infections (HR, 2.86; [CI, 0.82, 9.93]; P = 0.10) or nonunion surgery (HR, 1.7; [CI, 0.71, 4.09]; P = 0.23). Finally, there was no association with WB and in ambulatory ability within 90 days (odds ratio [OR], 1.48; [CI, 0.65, 3.35]; P = 0.35). HRs/ORs >1 indicate higher risk/odds for the WB group.
CONCLUSIONS: Based on this study, there was no association with prescribed postoperative WB and patient mortality, reoperations, or ambulatory ability within 90 days of surgery.
LEVEL OF EVIDENCE: III PROGNOSTIC.
METHODS: This was a retrospective review of geriatric (age >60 years) patients with distal femur fracture (OTA/AO 33 A, 33C) from 9 level 1 trauma centers that underwent surgical fixation from 2012 to 2019. Mortality, ambulatory ability at 90 days, and surgical complications were compared between postoperative non-WB (NWB) versus WB (touch-down/partial/WB as tolerated) groups. A propensity-weighted regression model including demographics, tobacco-use, preinjury ambulatory status, injury mechanism, and American Society of Anesthesiologists classification was used to compare outcomes between the NWB and WB cohorts.
RESULTS: Four hundred four patients were included where most of the patients (72%) underwent open reduction, internal fixation and most of the patients were NWB after surgery (63%). Most of the patients (328/404, 81%) were discharged to a nursing facility. Older patients, patients with ground-level fall, and American Society of Anesthesiologists I/II patients were more likely to be WB. Six-month mortality was 14%. Sixty-nine percentage of patients were able to ambulate without human assistance by 90 days. In the propensity-weighted analysis, there was no association with WB and mortality (hazard ratio [HR], 1.50; confidence interval [CI, 0.77, 2.92]; P = 0.24). No association was observed between WB and deep infections (HR, 2.86; [CI, 0.82, 9.93]; P = 0.10) or nonunion surgery (HR, 1.7; [CI, 0.71, 4.09]; P = 0.23). Finally, there was no association with WB and in ambulatory ability within 90 days (odds ratio [OR], 1.48; [CI, 0.65, 3.35]; P = 0.35). HRs/ORs >1 indicate higher risk/odds for the WB group.
CONCLUSIONS: Based on this study, there was no association with prescribed postoperative WB and patient mortality, reoperations, or ambulatory ability within 90 days of surgery.
LEVEL OF EVIDENCE: III PROGNOSTIC.