Relationship between the functional outcomes and radiological results of conservatively treated displaced proximal humerus fractures in the elderly: A prospective study

Study on proximal humerus evaluation of effective treatment (SPHEER) - what is the effect of rehabilitation compliance on clinical outcomes of proximal humerus fractures

INTRODUCTION

Proximal humeral fractures (PHFs) are 3rd commonest fragility fractures and cause significant functional impairment. This paper sought to determine impact of rehabilitation compliance on the clinical outcomes for non-surgically managed PHFs, while ascertaining reasons for non-compliance which can be addressed to improve compliance.

METHODS

Prospective cohort study of patients undergoing non-surgical treatment for PHFs from August 2017 to April 2020 in a tertiary trauma centre was performed. Data was collected via questionnaire: patient demographic data, PHF injury details, clinical outcome measures, therapist-reported (Sport Injury Rehabilitation Adherence Scale [SIRAS]) and patient-reported (subjective compliance, frequency of exercise) rehabilitation compliance measures. Data was analysed using multiple linear regression model to account for confounding variables.

RESULTS

107 participants attended physical therapy follow-up for mean 137.8 days. 6-week SIRAS strongly predicted 3-month Constant score (p = 0.023; 95%CI = 0.265,3.423), OSS (p = 0.038; 95%CI = 0.049,1.634), flexion ROM (p < 0.001; 95%CI = 2.872,8.982), extension ROM (p = 0.035; 95%CI = 0.097,2.614), abduction ROM (p = 0.002;95%CI = 1.995,8.466) and achievement of functional active ROM at 3-months (p = 0.049; 95%CI = 1.001,1.638). Pain was the top reason impairing rehabilitation compliance from therapist (43.9% at 6-weeks and 20.6% at 3-months) and patient-perspective (33.6% at 6-weeks, 24.3% at 3-months). Author-developed patient-reported compliance measures had good correlation with validated SIRAS score (subjective compliance: p < 0.001 frequency of exercise: p = 0.001).

CONCLUSION

Rehabilitation compliance predicts short-term clinical outcomes up to 3-months and potentially 1-year outcomes. Pain control should be optimised to maximise rehabilitation compliance and improve PHF outcomes. There is lack of consensus definition for rehabilitation compliance measures; patient-reported measures used have good correlation to existing validated measures and could serve as a steppingstone for further research.

LEVEL OF EVIDENCE

II, cohort study.

A systematic review of biopsychosocial prognostic factors of recovery after a proximal humerus fracture

BACKGROUND

Proximal humerus fracture (PHF) is a common upper extremity injury. PHF often causes prolonged disability and interferes with independent function.

PURPOSE

This study reviewed and summarized prognostic factors of recovery following PHF and classified them within the International Classification of Functioning, Disability and Health (ICF) with each domain sub-categorized by modifiability.

STUDY DESIGN

Systematic review.

METHODS

We searched MEDLINE, CINAHL, EMBASE, and PsychINFO from the date of database inception to March 2019 and updated searches in December 2021. Studies included examining an association between prognostic factors and recovery with at least a 6-month follow-up. Two independent reviewers used the Quality in Prognosis Studies tool for methodological bias and levels of evidence. Designs showed wide variability in terms of characteristics of the included population, definition of recovery, assessment of prognostic factors, and outcome measures used. This prevented pooled estimates from being produced. Prognostic factors linked to ICF domains were possible.

RESULTS

Twenty-three studies including 4323 participants aged ≥18 met inclusion criteria. The risk of bias was low (35%), moderate (30%), and high (35%) across the included studies. Moderate evidence showed a significant association between pre-fracture functional independence and post-fracture complications with recovery. Fracture type, structural deformity, medication use, age, and gender were prognostic factors with inconclusive evidence. We assigned a weak level of evidence to the remaining 20 factors due to limited data. Immediate rehabilitation, compliance to post-fracture rehabilitation exercise, task-oriented exercise, and pain self-efficacy (i.e., coping behavior) are modifiable and are tapped into the ICF contextual factors.

CONCLUSIONS

An array of factors that fit within an ICF biopsychosocial framework have been investigated as potential mediators of outcomes after PHF. The evidence is incomplete conceptually and in terms of research design quality. Preoperative functional status is predictive of functional recovery emphasizing the importance of healthy aging.

Predictive value of valgus head-shaft angle in identifying Neer 4-part proximal humerus fractures. A radiographic and CT-scan analysis of 120 cases

Background and aim of the work:

Understanding the fracture morphology and its relation to the expected outcome and risk of complications is fundamental for proximal humerus fractures (PHFs) management. Most Neer 3- and 4-part fractures may deserve surgical treatment. Unfortunately, plain x-rays may not be able to differentiate between a 3- or 4-part fractures unless an axillary or analogue projection is carried out. Aim of the present study is to evaluate whether a high valgus head-shaft angle degree is predictive of a Neer 4-part rather than a 3-part fracture.

Methods:

The study included 120 3-(75 cases) and 4-(45 cases) part PHFs (valgus displaced in 98 cases), M:F ratio = 1:2.6, mean age 65.7 years, classified on CT scan images. The humeral head shaft angle was calculated on AP x-rays and statistically correlated with 3 and 4-part fractures to identify values predictive of 4-part fracture.

Results:

Valgus head/shaft angle was significantly higher in 4-part fractures, especially in the valgus displaced group (p < 0.001). A cutoff value of 168.5° was identified as predictive of a 4-part fracture with a sensibility of 74% and specificity of 78%. Increasing by 1 degree the humeral head-shaft angle, the chance to have a 4-part fracture increases of 3% in the whole population and of 11% in the valgus sub-group.

Conclusion:

The severity of PHF can be predicted analysing valgus head shaft angle on AP x-rays with a sensibility of 74% and specificity of 78% in identifying a 4-part fracture with a cutoff value of 168.5°.

A comparative retrospective study of locking plate fixation versus a dedicated external fixator of 3- and 4-part proximal humerus fractures: Results after 5 years

INTRODUCTION

Fractures of the proximal humerus (PHF) represent a common injury among orthopedic department; especially for three- and four-part fractures no consensus about the best treatment is still achieved. The aim of our study was to compare clinical and radiological outcomes in patients alternatively treated with plates and screws or external fixation system for a type III-IV proximal humerus fracture.

MATERIAL AND METHODS

Sixty-nine patients went surgery for type III-IV PHF between January 2011 and January 2014. According to the Neer classification, fractures were classified as type III in 50 cases (72,46%) and type IV in 19 cases (24,56%). 45 patients were treated with plates (65%) and 24 external fixators (35%). The patients' mean age was 62 years (range, 31-87 y). At five years, 60 patients (86,9%) were assessed using the visual analog scale (VAS) pain score, Constant Score (CS), the range of motion, and radiological evaluation. The CS at five years was the primary outcome measure. Results were evaluated and compared with the contralateral unaffected side to avoid bias related to different ages.

RESULTS

At the final follow up, we found no clinical differences when comparing the two procedures. Moreover, when age was considered as a variable, a significative difference of the CS was observed in the group of patients younger than 65 years treated with a plate (Plate Group Mean: 79; SD: +/- 15. Ex Fi Mean: 58; SD:+/- 4. P = 0,008). In the group of patients older than 65 years, the two procedures did not show significative differences in outcomes (Plate Group Mean: 69; SD: +/- 15. Ex Fi Mean: 63; SD:+/- 7. P = 0,032). External fixation procedure was overall associated with a reduction in blood loss, surgical time, length of hospital stay.

CONCLUSION

Percutaneous techniques have a long tradition in PHF treatment; the introduction of dedicated external fixation system has the advantage to improve the stability and allow early rehabilitation when compared to the classical pinning technique. In our experience, the indication elderly patients with osteoporosis and comorbidities may benefit by this type of mini-invasive surgery with low soft tissue damages.