Weight-bearing recommendations after operative fracture treatment—fact or fiction? Gait results with and feasibility of a dynamic, continuous pedobarography insole

Should I Stay or Should I Go? A Prospective, Blinded Study Comparing the Diagnostic Capability of Dynamic and Stationary Pedobarography in Plantar Fasciitis

The aim of this study was to determine the diagnostic capability of a dynamic gait analysis insole and compare its ability to detect clinical correlations to a common stationary analysis tool. Twenty-five patients with chronic plantar fasciitis were included in this prospective, blinded, diagnostic study. Conventional, stationary gait analysis on a force plate on an even surface and continuous dynamic pedobarography on a standardized course consisting of different gait tasks were performed and correlated to the disease severity. Mean patient age was 53.6 (range 41 to 68) years, with a mean pain level of 6.1 (range 4 to 10) on the Visual Analogue Scale and a calcaneodynia score of 48.7 (range 33 to 66). Significant correlations were seen between several dynamic gait values and clinical scoring: cadence (r_s = 0.56, p = .004), stance time (r_s = -0.6, p = .002), center-of-pressure velocity (r_s = 0.44, p = .046), and double support time (r_s = 0.42, p = .042). No significant correlations were seen between any force plate gait analysis values and clinical scoring. In this study setting, dynamic gait analysis was able to identify clinically relevant correlations to plantar fasciitis disease severity that standard force plate measurements could not.

Weight-bearing or non-weight-bearing after surgical treatment of ankle fractures: a multicenter randomized controlled trial

Purpose

The goal of this study was to assess if unprotected weight-bearing as tolerated is superior to protected weight-bearing and unprotected non-weight-bearing in terms of functional outcome and complications after surgical fixation of Lauge-Hansen supination external rotation stage 2–4 ankle fractures.

Methods

A multicentered randomized controlled trial was conducted in patients ranging from 18 to 65 years of age without severe comorbidities. Patients were randomized to unprotected non-weight-bearing, protected weight-bearing, and unprotected weight-bearing as tolerated. The primary endpoint of the study was the Olerud Molander Ankle Score (OMAS) 12 weeks after randomization. The secondary endpoints were health-related quality of life using the SF-36v2, time to return to work, time to return to sports, and the number of complications.

Results

The trial was terminated early as advised by the Data and Safety Monitoring Board after interim analysis. A total of 115 patients were randomized. The O’Brien–Fleming threshold for statistical significance for this interim analysis was 0.008 at 12 weeks. The OMAS was higher in the unprotected weight-bearing group after 6 weeks c(61.2 ± 19.0) compared to the protected weight-bearing (51.8 ± 20.4) and unprotected non-weight-bearing groups (45.8 ± 22.4) (p = 0.011). All other follow-up time points did not show significant differences between the groups. Unprotected weight-bearing showed a significant earlier return to work (p = 0.028) and earlier return to sports (p = 0.005). There were no differences in the quality of life scores or number of complications.

Conclusions

Unprotected weight-bearing and mobilization as tolerated as postoperative care regimen improved short-term functional outcomes and led to earlier return to work and sports, yet did not result in an increase of complications.

Electronic supplementary material

The online version of this article (10.1007/s00068-018-1016-6) contains supplementary material, which is available to authorized users.

Inability of Older Adult Patients with Hip Fracture to Maintain Postoperative Weight-Bearing Restrictions

BACKGROUND

For elderly trauma patients, a basic goal is early mobilization, as immobilization can trigger various complications, such as venous thromboembolism, pneumonia, urinary tract infections, and pressure ulcers. Although partial weight-bearing has been shown to significantly increase mortality compared with unrestricted weight-bearing, it remains a frequent recommendation of aftercare following lower-extremity fracture fixation.

METHODS

An insole force sensor was used to measure true postoperative weight-bearing by patients ≥75 years of age treated for hip fracture compared with patients 18 to 40 years of age treated for ankle fracture. Both groups were instructed to maintain partial weight-bearing on the affected limb (≤20 kg) postoperatively. Following standardized physiotherapy training, gait analysis was performed.

RESULTS

None of the patients in the elderly test group were able to comply with the weight-bearing restriction as recommended. We found that 69% (11 of 16) of the patients exceeded the specified load by more than twofold, whereas significantly more patients in the younger control group (>75% [14 of 18]) achieved almost the entire weight-bearing restriction (p < 0.001). Only 1 of the elderly patients was able to comply with the predetermined weight-bearing restriction, and only for a short period of time. In comparison, significantly more patients in the control group (89% [16 of 18]; p < 0.001) maintained the partial load for nearly the entire time during gait analysis.

CONCLUSIONS

Elderly patients seem to be unable to maintain weight-bearing restrictions. As early mobilization of geriatric trauma patients is an important element for a successful rehabilitation, the directive of postoperative partial weight-bearing for these patients should be abandoned.

LEVEL OF EVIDENCE

Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.

Patient-related outcomes after proximal tibial fractures

PURPOSE

The purpose of the study was to assess patient-related outcomes at short-term follow-up in patients with a proximal tibial fracture.

METHODS

One hundred sixteen patients (119 fractures) treated at our institution during 2012 were retrospectively reviewed. Follow-up was 1.6 (SD ± 0.4) years post-injury, including the short musculoskeletal function assessment and visual analog scale for pain and satisfaction. Fractures were classified by the Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association classification and divided in two groups: simple and complex.

RESULTS

Patients with simple fractures reported lower short musculoskeletal function assessment indices and less pain on visual analog scale than those with complex fractures. No difference was found in short musculoskeletal function assessment between surgically and non-surgically treated patients. Non-surgically treated patients reported less pain and were more satisfied. The overall complication rate was 30 (25%) of 119 fractures, with surgical treatment carrying a 7.0 (95% CI: 1.5-34) odds ratio for local complications.

CONCLUSIONS

This study provides information about realistic prognosis after proximal tibial fractures. The finding that surgically treated patients had similar outcomes to non-surgically treated ones may indicate that surgery improves the prognosis of complex fractures to a level comparable to the prognosis of less severe ones. However, the risk of complications after surgery should guide treatment when surgery is not clearly indicated.

The effect of time to post-operative weightbearing on functional and clinical outcomes in adults with a displaced intra-articular calcaneal fracture; A systematic review and pooled analysis

BACKGROUND

Post-operative weightbearing guidelines for displaced intra-articular calcaneal fractures (DIACF) have been pragmatically developed in the past, however hardly adapted to current health care insights. A period of six to nine weeks of non-weightbearing is usually recommended. It is unknown whether an earlier start of weightbearing is advisable.

OBJECTIVES

The primary aim was to evaluate the effect of time to post-operative weightbearing on Böhler's angle. Secondary aims were to determine the effect on functional outcome (e.g., The American Orthopedic Foot and Ankle Society Scale), post-operative pain score, complications (e.g., infections, nonunion, implant removal), and revision surgeries. Finally, the effect of bone void filling on these outcomes was investigated.

DATA SOURCE

A literature search was performed on January 24, 2017 in the Cochrane Library, Medline Ovid, Embase, Web of Science, Google Scholar, and CINAHL.

LITERATURE SELECTION

Studies reporting on operatively treated patients with a DIACF and time to weightbearing were eligible for inclusion. Studies were excluded when not reporting primary data, solely reporting on open fractures, bilateral fractures, or polytrauma patients. Based upon the time to starting partial weightbearing, patient cohorts were stratified into very early (0-4 weeks), early (4-6 weeks), intermediate (6-8 weeks), or late (8-12 weeks) start of partial weightbearing.

DATA EXTRACTION

Two investigators extracted data independently using a predefined data sheet.

RESULTS

After applying exclusion criteria, 72 studies remained eligible for analysis. Böhler's and Gissane's angles, calcaneal height, AOFAS, pain scores, and complications had overlapping confidence intervals in all weightbearing groups.

CONCLUSION

The adverse sequelae which are assumed to be associated with starting partial weightbearing already within six weeks after internal fixation of calcaneal fractures, is not supported by literature data. This systematic review suggests that early weightbearing does not result in impaired outcomes compared with more conservative weightbearing regimes.

Incidence of knee height asymmetry in a paediatric population of corrected leg length discrepancy: a retrospective chart review study

PURPOSE

The purpose of the study is to provide a methodology to quantify knee height asymmetry (KHA) and to establish the incidence of knee height asymmetry in a patient population visiting the limb length discrepancy clinic in a paediatric-orthopaedic hospital centre.

METHOD

A retrospective chart review was performed on all patients who attended the limb length discrepancy clinic and underwent corrective surgery at the Shriners Hospital for Children-Canada from December 2009 to December 2015. Full-standing anteroposterior radiographs were used to measure pre- and post-surgery limb length discrepancy and knee height asymmetry for 52 individuals included in the study.

RESULTS

Sixty-seven percent of the studied population had a KHA of 20 mm or less, 25% had a KHA between 20 and 40 mm, and 8% had a KHA of over 40 mm. The average KHA preoperatively for all 52 individuals was 17 ± 14 mm (range 0-59 mm), which represents roughly 2.5% of total limb length. There was a 3-mm non-significant reduction in KHA size between pre-and post-operative states (p = 0.22).

CONCLUSION

The current study provides a method to quantify knee height asymmetry. Using this method, it was shown that knee height asymmetry is frequent in youth with limb length discrepancy in both pre- and post-corrective surgery states. The relatively high incidence of knee height asymmetry highlights the importance to investigate the impact of knee height asymmetry in youth living with a limb length discrepancy.