A systematic review and meta-analysis of randomised controlled trials on surgical treatments for ingrown toenails part I: recurrence and relief of symptoms

Evaluation of the Recurrence Rate of Ingrown Toenail After a 45-Second Matrix Cauterization With Phenol

INTRODUCTION

Ingrown toenail is a very common nail disorder, and partial matricectomy by phenolization is considered the most effective treatment technique. However, the contact time of the phenol with the nail matrix remains debatable.

OBJECTIVE

To evaluate the recurrence rate of ingrown toenail after partial matricectomy by phenol for 45 seconds.

METHODS

A total of 1,460 surgeries were performed, with a photographic record of 802 pictures for a period of 6 months. The presence of any nail spicule or sign of ingrowth during follow-up was considered a recurrence.

RESULTS

A total of 802 surgeries were evaluated, with the most affected nails being the right (49.3%) and left (48%) big toes and most frequently the lateral fold (54.5%). The recurrence rate was 0.75% at 3 months and 1.87% at 6 months, and the medial nail fold had a higher recurrence rate than the lateral nail fold.

CONCLUSION

Forty-five seconds of contact time of 88% phenol with the nail matrix was enough and effective, resulting in low recurrence rates. Prospective studies are needed to better assess postoperative morbidity.

Surgical interventions for ingrown toenail

BACKGROUND

Paronychia is a prevalent clinical disease affecting the soft tissue surrounding the nails. Most cases of toenail paronychia are commonly associated with ingrown toenails. While conservative treatment is effective for mild cases of ingrown toenails, surgical intervention becomes necessary for moderate to severe cases, particularly when granulomas form.

OBJECTIVE

To provide a systematic understanding of these classic and modified procedures for surgeons to select the appropriate surgical interventions for patients suffering from moderate to severe ingrown toenails and discuss this technology's advantages and limitations for dermatologic surgery.

METHODS

A literature search was performed using PubMed/MEDLINE and Google Scholar databases. Studies discussing surgical intervention for ingrown toenails were included. Moreover, the surgical steps were meticulously depicted by detailed schematic diagrams.

RESULTS

These surgical techniques can be divided into three categories: matrix resection, debulking of periungual soft tissues, and the rotational flap technique. Each approach possesses distinct advantages and limitations.

CONCLUSION

For moderate to severe cases, surgical interventions may exhibit superior outcomes, faster recovery times, and lower recurrence rates. The surgeon must possess a comprehensive understanding and proficient skillset in various surgical techniques for ingrown toenails.

A systematic review and meta-analysis of randomised controlled trials of surgical treatments for ingrown toenails part II: healing time, post-operative complications, pain, and participant satisfaction

BACKGROUND

When performing nail surgery, clinicians must choose from a multitude of procedures and variations within each procedure. Much has been published to guide this decision making, but there are a lack of up to date robust systematic reviews to assess the totality of this evidence.

METHODS

Five databases (MEDLINE, Embase, CINAHL, Web of Science and CENTRAL) and two registers (Clinicaltrials.gov and ISRCTN) were searched to January 2022 for randomised trials evaluating the effects of a surgical intervention(s) for ingrown toenails. Two independent reviewers screened records, extracted data, assessed risk of bias and certainty of evidence. Data on co-primary outcomes of symptom relief and symptomatic regrowth were presented in our first paper. This paper presents data for the secondary outcomes and further discussion.

RESULTS

Of 3,928 records identified, 36 randomised trials were included in the systematic review. Healing time appears to be reduced with shorter application of phenol. A reduced healing time was also apparent was with the addition of curettage, although this may also increase the risk of post-operative bleeding and pain. Post operative bleeding was also reportedly lower in people who received local anaesthetic with epinephrine but no tourniquet. Use of phenol with nail bed excision may decrease the risk of infection. Lower pain scores were reported when using partial matrixectomy and surgical interventions with phenol. Shorter duration of pain was reported with phenolisation and wedge resection. Participant satisfaction was high overall.

CONCLUSION

This second paper reports secondary outcomes from a robust systematic review of randomised trials on surgical treatment of ingrown toenails. Despite the large volume of clinical trials conducted on the topic, few clinical conclusions can be drawn due to the poor quality of these studies. Further high-quality clinical trials are needed to answer fundamental questions in the surgical treatment of ingrown toenails.