Preservation of the knee joint is of paramount importance in lower limb amputation for ischaemia. Clinical predictors of healing are unreliable in patients with septic peripheral lesions due to ischaemia. Seventy-three patients in whom a below-knee amputation was considered likely to heal, based on the temperature and appearance of the skin and bleeding from skin and muscle flaps, were divided into two groups. Twenty-nine (Group A) had a primary below-knee (BK) amputation at the site of election with delayed primary skin closure, while 44 patients (Group B) initially had a guillotine BK amputation below the site of election, with elective amputation at the appropriate level once infection had been eradicated (4-5 days later). The groups were similarly matched with regard to level of occlusive arterial disease, nature of ischaemic lesions and operative risk factors. There was no significant difference in the overall operative mortality in Group A (6.7 per cent) compared with Group B (11.4 per cent) (P greater than 0.05). There was a significantly higher above-knee revision rate in Group A survivors (33.3 per cent) compared with Group B (7.7 per cent) (P less than 0.01) due to non-viability and uncontrolled sepsis of the BK amputation site. The presence or absence of a palpable femoral or popliteal pulse had no significant influence on healing in either group.
Background
Single level falls (SLFs) in the older U.S. population is a leading cause of hospital admission and rates are increasing. Unscheduled hospital readmission is regarded as a quality-of-care indication and a preventable burden on healthcare systems. We aimed to characterize the predictors of 30-day readmission following admission for SLF injuries among patients 65 years and older.
Methods
We conducted a retrospective cohort study using the Nationwide Readmission Database from 2018 to 2019. Included patients were 65 and older, admitted emergently following a SLF with a primary injury diagnosis. Hierarchical logit regression was used to model factors associated with readmission within 30 days of discharge.
Results
Of 1,338,905 trauma patients, 65 years of age or older, 61.3% had a single-level fall as the mechanism of injury. Among fallers, the average age was 81.1 years and 68.5% were female. SLF patients underwent more major therapeutic procedures (56.3% vs. 48.2%), spent over 2 million days in the hospital and incurred total charges of over $28 billion annually. Over 11% of SLF patients were readmitted within 30 days of discharge. Transfer to short-term hospital, brain and vascular injuries were independent predictors of 30-day readmission in multivariable analysis, (OR 2.45, 1.25, and 1.41, respectively). Palliative care consultation was protective, (OR 0.41). The subsequent hospitalizations among those 30-day readmissions were primarily emergent (92.9%), consumed 260,876 hospital days and a total of $2.75 billion annually.
Conclusions
SLFs exact costs to patients, health systems, and society. Transfer to short-term hospitals at discharge, along with brain and vascular injuries were strong predictors of 30-day readmission and warrant mitigation strategy development with consideration of expanded palliative care consultation.
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