Do NSAIDs affect bone healing rate, delay union, or cause non-union: an updated systematic review and meta-analysis

Introduction

Nonsteroidal anti-inflammatory drugs (NSAIDs) may potentially delay or cause non-union of fractures by inhibiting prostaglandin synthesis. However, studies have shown conflicting results. This systematic review and meta-analysis aim to synthesize current evidence on the potential influence of NSAIDs on bone healing.

Methods

We conducted a comprehensive search of PubMed, Embase, and Cochrane CENTRAL databases for studies published up to 25 July 2023. Specific keywords included "NSAID," "nonsteroidal anti-inflammatory drug," "cyclooxygenase-2 inhibitor," "bone healing," "non-union," "pseudoarthrosis," "delayed union," and "atrophic bone." Eligible studies included prospective, retrospective, and case-controlled studies assessing the correlation between NSAID use and bone healing outcomes. The leave-one-out approach was used to test the robustness of the meta-analysis results.

Results

A total of 20 studies with 523,240 patients were included in the analysis. The mean patient age ranged from 6.7 to 77.0 years, with follow-up durations from 3 to 67 months. The meta-analysis revealed no significant difference in non-union or delayed union between NSAID users and non-users [pooled adjusted odds ratio (OR) = 1.11; 95% confidence interval (CI): 0.99-1.23]. Initial analysis identified a significant association between NSAID usage and an increased risk of reoperation, but this association became insignificant upon sensitivity analysis (crude OR = 1.42; 95% CI: 0.88-2.28).

Discussion

NSAIDs may have a minimal impact on non-union or delayed union risks. However, caution is advised due to the limited number of studies and the absence of a specific focus on NSAID types and dosages. Further research is necessary to better understand the implications of NSAID use on bone healing.

Management of Pain Associated with Fractures

PURPOSE OF REVIEW

The purpose is to review current literature on pain management strategies from initial presentation to postoperative care on common fracture types.

RECENT FINDINGS

- Hip fractures benefit from use of multimodal pain control for early mobility and decreased narcotic requirement. - Distal radius fracture pain during reduction can be managed with hematoma block. Postoperatively, a soft dressing is adequate, and use of a compression glove may improve pain control and edema. - Ankle fractures can be reduced with hematoma block, though use of procedural sedation may reduce reduction attempts for fracture dislocations. - Long bone fracture pain management is trending toward multimodal pain control. Though there is no high-quality evidence, concern that regional anesthesia may mask compartment syndrome has limited its use in high-risk fractures. - The effect of NSAIDs on bone healing has not been conclusively demonstrated. The literature is still inconclusive regarding superiority of either spinal or general anesthesia during operative treatment. Fracture pain control is complex and multifactorial, requiring nuanced clinical judgment in the face of mixed clinical findings.