Calcaneal fractures: selection bias is key

Area of Science:

• Orthopedic surgery
• Traumatology
• Clinical trial appraisal

Background:

• The United Kingdom Heel Fracture Trial recently published findings on calcaneal fracture management.
• The trial excluded patients with absolute indications for surgery.
• This exclusion criteria may impact the generalizability of the results.

Purpose of the Study:

• To critically appraise the methodology and conclusions of the United Kingdom Heel Fracture Trial.
• To evaluate the potential impact of selection bias on the trial's findings regarding surgical versus non-surgical treatment of calcaneal fractures.

Main Methods:

• Critical appraisal of a published randomized controlled trial.
• Analysis of patient selection criteria and its potential influence on outcomes.
• Review of evidence comparing surgical and non-surgical management of calcaneal fractures.

Main Results:

• The trial concluded no advantage of surgical over non-surgical treatment when excluding patients with absolute surgical indications.
• The authors of this appraisal suggest that selection bias was present in the trial.
• This bias may prevent definitive conclusions regarding the efficacy of surgery for most intra-articular calcaneal fractures.

Conclusions:

• The exclusion of surgically indicated patients limits the trial's conclusions.
• Selection bias may have skewed the results, questioning the universal non-superiority of non-surgical treatment for calcaneal fractures.
• Further research with appropriate patient selection is needed to definitively compare surgical and non-surgical interventions for calcaneal fractures.