Improved weight bearing during gait at 6 weeks post-surgery with an angle stable locking system after distal tibial fracture

BACKGROUND

Functional recovery after intramedullary nailing of distal tibial fractures can be monitored using ipsilateral vertical ground reaction forces (vGRF), giving insight into recovery of patients' gait symmetry. Previous work compared patient cohorts to healthy controls, but it remains unclear if these metrics can identify treatment-based differences in return to function post-surgery.

RESEARCH QUESTION

Is treatment of a distal tibial fracture with intramedullary nailing with an angle stable locking system (ASLS) associated with higher ipsilateral vGRF and improved symmetry compared to conventional intramedullary nailing at an early time point?

METHODS

Thirty-nine patients treated with ASLS intramedullary nailing were retrospectively compared to thirty-nine patients with conventional locking. vGRFs were collected at 1, 6, 12, 26, and 52 weeks post-surgery during standing and gait. Discrete metrics of ipsilateral vGRF (maximal force, impulse) and asymmetry were compared between treatments at each time point. Time-scale comparisons of ipsilateral vGRF and lower limb asymmetry were additionally performed for gait trials. Mann-Whitney Test or a two-way analysis of variance tested discrete comparisons; statistical non-parametric mapping tested time-scale data between treatment groups.

RESULTS

During gait, ASLS-treated patients applied more load on the operated limb (17-38% stance, p = 0.015) and consequently loaded limbs more symmetrically (8-37% stance, p = 0.008) during the loading response at 6 weeks post-surgery compared to conventional IM treatment. Discrete measures of symmetry at the same time point identified treatment-based differences in maximal force (p = 0.039) and impulse (p = 0.012), with ASLS-treated patients exhibiting more symmetry. No differences were identified in gait trials at later time points nor from all standing trials.

SIGNIFICANCE

During the initial loading response of gait, increased ipsilateral vGRF and improved weightbearing symmetry were identified in ASLS patients at 6 weeks post-surgery compared to conventional IM nailing. Early and objective metrics of dynamic movement are suggested to identify treatment-based differences in functional recovery.

Quality indicators in the treatment of geriatric hip fractures: literature review and expert consensus

PURPOSE

Even though hip fracture care pathways have evolved, mortality rates have not improved during the last 20 years. This finding together with the increased frailty of hip fracture patients turned hip fractures into a major public health concern. The corresponding development of an indicator labyrinth for hip fractures and the ongoing practice variance in Europe call for a list of benchmarking indicators that allow for quality improvement initiatives for the rapid recovery of fragile hip fractures (RR-FHF). The purpose of this study was to identify quality indicators that assess the quality of in-hospital care for rapid recovery of fragile hip fracture (RR-FHF).

METHODS

A literature search and guideline selection was conducted to identify recommendations for RR-FHF. Recommendations were categorized as potential structure, process, and outcome QIs and subdivided in-hospital care treatment topics. A list of structure and process recommendations that belongs to care treatment topics relevant for RR-FHF was used to facilitate extraction of recommendations during a 2-day consensus meeting with experts (n = 15) in hip fracture care across Europe. Participants were instructed to select 5 key recommendations relevant for RR-FHF for each part of the in-hospital care pathway: pre-, intra-, and postoperative care.

RESULTS

In total, 37 potential QIs for RR-FHF were selected based on a methodology using the combination of high levels of evidence and expert opinion. The set consists of 14 process, 13 structure, and 10 outcome indicators that cover the whole perioperative process of fragile hip fracture care.

CONCLUSION

We suggest the QIs for RR-FHF to be practice tested and adapted to allow for intra-hospital longitudinal follow-up of the quality of care and for inter-hospital and cross-country benchmarking and quality improvement initiatives.