Time of return back to work and complications following cross-finger flaps in industrial workers: Comparison between immediate post operative mobilization versus immobilization until flap division

[Long-Term Outcome of Digital Defect Reconstruction using Cross-Finger Flaps]

INTRODUCTION

Although multiple advances have been made in finger defect reconstruction, cross-finger flaps remain an important reconstructive tool. However, data on long-term results are scarce in the literature. This study aimed to assess the clinical and subjective long-term outcomes of patients who underwent cross-finger flap reconstruction for palmar digital and fingertip defects.

PATIENTS AND METHODS

Between January 2003 and July 2022, 35 patients (31 male, 4 female, mean age: 59.0 years±20.1) were screened and included in the study. The data were obtained through a clinical examination, a Quick-DASH score and a self-designed questionnaire. Clinical outcomes were assessed by evaluating the range of motion (ROM) of the reconstructed finger and the donor finger compared with the contralateral uninjured hand. In addition to ROM, a static two-point separation test was performed to assess the sensory function of the reconstructed finger. The follow-up period was between 1 year and 19 years (mean: 12.6 years±6.1).

RESULTS

There was no significant difference in terms of ROM between the reconstructed finger and the donor finger compared with the contralateral uninjured hand. All patients reported normal discrimination between sharp and blunt objects. However, there was a significant difference in two-point discrimination between the reconstructed finger and the healthy contralateral finger (p<0.05). The average Quick-DASH score was 5.1 points. Satisfaction with the functional outcome in terms of mobility and load-bearing capacity of the cross-finger flap averaged 8.1 out of 10 points. Satisfaction with the aesthetic outcome of the reconstructed finger averaged 7.7 out of 10 points. In 4 cases, persistent pain was reported when the reconstructed finger was under stress. No cases of pain at rest were reported.

CONCLUSION

In the long run, cross-finger flaps are a safe and effective reconstructive procedure for covering defects in palmar injuries of the finger and fingertip amputation. They represent a simple, reliable, long-lasting reconstructive technique. The necessary temporary iatrogenic syndactyly does not lead to long-term limitations in the range of motion.

Donor Finger Morbidity in Cross-Finger Flap: A Systematic Review and Meta-Analysis

Background The morbidity of donor finger in a cross-finger flap has not received as much importance as the outcomes of the flap itself. The sensory, functional, and aesthetic morbidity of donor fingers, reported by various authors, are often contradictory to each other. In this study, objective parameters for the sensory recovery, stiffness, cold intolerance, cosmetic outcome, and other complications in the donor fingers, reported in the previous studies, are systematically evaluated.

Methods This systematic review is reported using Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) protocol and was registered with the International prospective register of systematic reviews (PROSPERO registration no. CRD42020213721). Literature search was done using “cross-finger,” “heterodigital,” “donor finger,” and “transdigital” words. Data regarding demography, patients' number and age, follow-up duration and outcomes of donor finger, including 2-point discrimination, range of motion (ROM), cold intolerance, questionnaires, etc. were extracted from included studies. Meta-analysis was performed using MetaXL and risk of bias was evaluated using Cochrane risk of bias tool.

Results Out of the total 16 included studies, 279 patients were objectively evaluated for donor finger morbidity. Middle finger was most frequently used as donor. Static two-point discrimination seemed to be impaired in donor finger in comparison to contralateral finger. Meta-analysis of ROM suggested that statistically there is no significant difference in ROM of interphalangeal joints in donor and control fingers (pooled weighted mean difference: −12.10; 95% confidence interval: −28.59, 4.39; I2 = 81%, n = 6 studies). One-third of donor fingers had cold intolerance.

Conclusion There is no significant effect on ROM of donor finger. However, the impairment that seems to be in sensory recovery and aesthetic outcomes needs to be further evaluated objectively.

Comparison of Clinical Outcomes of Heterodigital Neurovascular Island Flap, Reverse Homodigital Neurovascular Island Flap, and Cross-Finger Flap Used for Fingertip Reconstruction

Objective

The fundamentals of fingertip defect reconstructions should be mainly to restore the sensation with contour and identical pulp volume, and texture. To achieve these, various flap techniques were described in which those had their own advantages and disadvantages to restore the fingertip injuries. This study aimed to compare clinical outcomes of three different local flap procedures widely used for the reconstruction of fingertip defects: heterodigital neurovascular island (HeNI) flap, reverse homodigital neurovascular island (rHoNI) flap, and cross-finger (CF) flap.

Methods

Between 2014 and 2019, statistical analysis of 58 patients undergoing reconstruction of fingertip defects of 2-5 digits by HeNI flap (n = 16), rHoNI flap (n = 17), or CF flap (n = 25), was performed retrospectively. All cases were reviewed regarding age, gender, etiology of trauma, duration of follow-up, the extent of the injury with the classification system PNB, Quick Disability of Arm, Shoulder, and Hand score (Q-DASH), cold intolerance symptom severity score (CISS), static 2-point discrimination test, ROM value of phalangeal joints and time to return to work.

Results

The mean age of all patients was 36.9 years with a male-to-female ratio of 5.4:1 and a mean follow-up of 26.72 months. The most common cause was work-related (n = 41). The mean of DASH score, CISS score, static 2-point discrimination, time to return to work, and ROM value of DIP joint did not significantly differ between the study groups. The mean ROM values of PIP and MCP joints of patients for CF flaps applied were significantly lower than HeNI flaps.

Conclusion

The use of HeNI flap for fingertip reconstruction is a reliable one-stage option in terms of improved ROM of finger joints.

A Review and Meta-analysis of Adverse Events Related to Local Flap Reconstruction for Digital Soft Tissue Defects

We reviewed the current literature to estimate incidence rates for adverse events with pedicled flaps in the hand. We identified 241 different studies reporting adverse events for 6693 flaps. The average incidence rate was 5.4% and total or partial loss of flap constituted 65% of all reported complications. Flaps with reverse or perforator-based flow may be more prone to vascular complications compared with flaps with antegrade flow or skin pedicle. The incidence rates were acceptable in all flaps (1%-10%) and thus the flap can be chosen primarily based on considerations other than risk of adverse events.

Spare-part fillet cross-finger flaps: A series of two cases

INTRODUCTION

The concept of 'spare-part' flaps in hand reconstruction is most commonly applied using finger fillet flaps to cover dorsal or volar hand defects. In this paper, we introduce the concept of utilization of spare-part finger fillet flaps in a cross-finger fashion.

CASE REPORTS

The technique is demonstrated in two case reports. In both cases, there was one finger that was severely crushed requiring amputation. The bones from that finger were removed and the fillet finger flap was utilized to reconstruct a complex defect in an adjacent digit. Immediate post-operative physiotherapy was employed and flap division was done 17-18 days later. Both patients were satisfied with the outcome and returned back to work as manual workers.

DISCUSSION

Differences between previous techniques / types of cross-finger flaps and the current spare-part fillet cross-finger flap technique are discussed.

CONCLUSION

We introduce the concept of utilization of spare-part finger fillet flaps in a cross-finger fashion.