Evaluation of surgical treatment of carpal tunnel syndrome using local anesthesia

Combined distal median nerve block and local anesthesia with lidocaine:epinephrine for carpal tunnel release

Aim

Evaluating patient comfort during full awake local anesthesia in carpal tunnel release surgery, without tourniquet use, by using epinephrine to obtain a completely dry surgical field.

Methods

We included into the study 41 patients who underwent carpal tunnel syndrome surgery under full awake combined anesthesia, using a 9-point questionnaire. Pain and anxiety in all patients were evaluated through a Wang-Baker 0–5 scale. The injection solution consisted of 0.1cc of epinephrine and 10cc of 1% lidocaine (1:100.000); 5cc were used for local cutaneous anesthesia, and 5cc were used for distal median nerve block. All patients underwent a classic, open carpal tunnel release.

Results

Anxiety scores during anesthesia and the post-operative period did not show a statistically significant difference (p > 0.01), with keeping their levels at low perception scores (average score of 1.68 ± 0.38 CI 95%, with a modal value of 2, compared to an average of 0.78 ± 0.29 CI 95% with a modal value of 0). Similar results were obtained for pain scores during anesthesia (1.73 ± 0.48 CI 95% with a most frequent modal score of 1). Our results also showed that the effects of combined anesthesia in carpal tunnel release surgery persisted well into the 6-hour post-operative moment, pain scores remaining low, statistically significant similar to recorded values during the anesthesia moment (p > 0.01), at an average of 2.29 ± 0.5 CI 95% with a modal value of 1. No serious complications were recorded.

Conclusion

Combined distal median nerve block and local anesthesia with epinephrine:lidocaine provides a comfortable option for patients, with minimal risks of complications.

Treatment of hand infections using WALANT -when the anesthesiologist is not available: A retrospective cohort study

Backround

The aim of this study was to determine, if Wide Awake Local Anesthesia No Tourniquet (WALANT) can be used as an alternative method of providing anesthesia in management of deep infections of the hand. Since the advent of WALANT in 2003, infections of the hand have been regarded as a contraindication to its use. Occasional shortage of anesthesiologic manpower, especially during busy call hours and the current COVID-19 pandemic can lead to delay of treatment where urgent surgery is needed, to prevent progress of an infection, that can result in severe morbidity.

Methods

In the period from 2015 to 2020, 16 patients with various infections of the hand underwent 17 operations using WALANT in a Hand Trauma and Replantation Center (HTRC) in Germany. Retrospective cohort analysis of their operation reports, with emphasis on location of infection, time and duration of the operation, intraoperative incidents and complications were carried out. We also evaluated the need for revision surgery or necessity to convert to general anesthesia and factors causing delay till the time of surgery.

Results

No case of inadequate analgesia, the need to convert to general anesthesia, ischemic events or cardiovascular complications with the use of the WALANT solution containing adrenaline and lidocaine in the treatment of deep tissue infections.

The highest priority of limb preservation was ensured as no patient progressed to amputation of a digit or the hand. There was a statistically significant difference (p≤0.01) in delay from the time of admission until surgery of up to 9h24 m (SD±3h34 m) during the week and 4h10 m (SD±2h28 m) during the weekend.

Conclusion

The status of infection as an absolute contraindication to the use of WALANT should be revised. Especially when human resources are limited, WALANT is an adequate technique to enable quick anesthesia for urgent treatment to prevent progression of hand infections.

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Wide Awake Local Anesthesia No Tourniquet can be used to treat deep hand infections.

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In the COVID-19 pandemic alternative ways of providing anesthesia are needed.

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Absolute contraindication to the use of WALANT should be reevaluated.

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“time is function”, urgent treatment remains key in management of hand infections.

Chang CC. Carpal Tunnel Syndrome: Retrospective Analysis of 60 Consecutive Cases of Ambulatory Surgical Treatment With Local Anesthesia

Background: The purpose of this study was to evaluate the safety and efficacy of ambulatory open surgical treatment for carpal tunnel syndrome with local anesthesia and without tourniquet ischemia, sedation by an anesthesiologist, or hospitalization. Methods: A retrospective analysis of 60 consecutive cases performed during 1 year was conducted, excluding other compressive or noncompressive neuropathies. The criteria for treatment efficacy were improvements in symptoms and recurrence rates, and the safety criterion was the presence of complications. Results: The mean patient age was 53.39 years, with 91.7% of women and 8.3% of men. The right side was more frequently affected (65% of the cases). The anesthetic and surgical procedures were well tolerated by patients. No complications during the procedures or postsurgical recurrences were observed. Conclusions: Consistent with previous data, the results of this study corroborate that the proposed treatment is effective, safe, and of low cost, resulting in great savings and increased productivity for the public health system.

488 hand surgeries with local anesthesia with epinephrine, without a tourniquet, without sedation, and without an anesthesiologist

Objectives

Evaluate the incidence of digital infarction and tissue necrosis using local anesthesia with 1% lidocaine and 1:100,000 epinephrine in wrist, hand, and fingers surgeries, without a tourniquet, without sedation, and without an anesthesiologist.

Methods

Patients with wrist, hand, and fingers disorders prospectively underwent surgery under local anesthesia with 1% lidocaine and 1:100,000 epinephrine. The primary outcomes evaluated were the presence of digital infarction and tissue loss due to necrosis. As secondary outcomes, the need for the use of sedatives, tourniquet, anesthesiologist assistance, or surgery suspension were evaluated.

Results

Fifty-three wrists, 307 hands, and 128 fingers were anesthetized with lidocaine and epinephrine without any complications related to epinephrine. There was no patient that presented with any of the primary or secondary outcomes.

Conclusions

Wrist, hand, and fingers surgeries can be safely performed with local anesthesia with 1% lidocaine and 1:100,000 epinephrine, without sedation, without a tourniquet, and without an anesthesiologist.