Unilateral or bilateral V-Y fasciocutaneous flaps for the coverage of soft tissue defects following total knee arthroplasty

A comparison of healing and complication rates between common flaps utilized in total knee arthroplasty: a review of the literature

Background

Flap reconstruction with perforator, fasciocutaneous, muscular, and/or free microvascular flaps is utilized to cover wound defects and improve vascularization and antibiotic/nutrient delivery. Flap use in revision procedures for total knee arthroplasty has been explored previously; however, current data are limited and studies comparing healing and complication rates between different flap types are lacking.

Methods

A literature review was performed using PubMed on 13 January 2022. Studies were included if they reported healing and complication rates for either gastrocnemius, rectus abdominis, latissimus dorsi, fasciocutaneous, chimeric, or gracilis flaps in the setting of revision total knee arthroplasty (TKA).

Results

The final cohort included gastrocnemius (n = 421, healing rate 73.8%, complication rate 59.9%), gracilis (n = 9, healing rate 93%, complication rate 55.6%), latissimus dorsi (n = 41, healing rate 67%, complication rate 46.3%), rectus abdominis (n = 3, healing rate 100%, complication rate 0%), fasciocutaneous (n = 78, healing rate 70%, complication rate 19.2%), and chimeric flaps (n = 4, healing rate 100%, complication rate 25%). There was no significant difference when comparing healing rates across flap types (p = 0.39). There was a significant difference when comparing complication rates across flap types (p < 0.0001), with a significant difference being noted between gastrocnemius and fasciocutaneous complication rates (p < 0.0001). All other comparisons between flap types by complication rate were not significantly different.

Conclusions

Gastrocnemius flaps are the workhorse flap in the setting of revision TKA, as evidenced by this review. Healing rates did not vary significantly across flap types, which suggests that determining the appropriate flap for coverage of soft-tissue defects in revision TKA should be driven by defect size and location as well as physician experience and patient tolerance.

Total Knee Arthroplasty Wound Complication Treatment Algorithm: Current Soft Tissue Coverage Options

BACKGROUND

Wound complications associated with soft tissue defects following total knee arthroplasty present challenges for the orthopedic surgeon. The scale of early complications include less morbid problems, such as quickly resolving drainage and small superficial eschars, to persistent drainage and full-thickness tissue necrosis, which may require advanced soft tissue coverage.

METHODS

This review outlines current wound management strategies and provides an algorithm to help guide treatment and clinical decision-making.

CONCLUSION

A surgeon's understanding of soft tissue coverage options is essential in protecting the knee prosthesis from a deep infection and to obtain an optimal functional outcome.

Soft-tissue Defects After Total Knee Arthroplasty: Management and Reconstruction

Wound healing complications associated with total knee arthroplasty present a considerable challenge to the orthopaedic surgeon. To ensure preservation of a functional joint, the management of periprosthetic soft-tissue defects around the knee requires rapid assessment, early and aggressive débridement, and durable, contoured coverage. Several reconstructive options are available to tailor soft-tissue coverage to the location, size, and depth of the wound. Special consideration should be given to the timing of the intervention, management of infection, and prosthesis salvage. The merits of each reconstructive option, including perforator, fasciocutaneous, muscular, and free microvascular flaps, should be weighed to select the most appropriate option. The proposed approach can guide surgeons in treating patients with these complex soft-tissue defects.

Long-Term Outcomes of Total Knee Arthroplasty following Soft-Tissue Defect Reconstruction with Muscle and Fasciocutaneous Flaps

BACKGROUND

Insufficient soft-tissue coverage following total knee arthroplasty jeopardizes prosthesis retention and may lead to significant complications. The aim of this study was to evaluate the natural history of total knee arthroplasty following flap reconstruction of soft-tissue defects.

METHODS

A retrospective review of patients treated with flaps after failed total knee arthroplasty between 1998 and 2013 was conducted. Patients with preexisting soft-tissue defects who required reactive flap reconstruction were included in group 1. Patients with no preexisting soft-tissue defects, but with extensive débridement during revision total knee arthroplasty requiring immediate proactive flap coverage, were included in group 2.

RESULTS

Fifty-eight patients in group 1 were treated with 86 flaps, and 15 patients in group 2 were treated with 17 flaps. Mean length of follow-up was 67.0 and 54.7 months, respectively (p = 0.21). Flap-related complications and number of subsequent flap revisions were comparable in both groups. Patients in group 1 had a higher rate of implant reinfection (58 percent versus 27 percent; p < 0.05), amputations (25 percent versus 0 percent; p < 0.05), and subsequent prosthesis revisions (2.2 versus 0.9; p < 0.05). Functional joint was preserved in 54 percent and 80 percent of cases, respectively. Mean gain in range of motion and quality of life were significantly better in group 2 (p < 0.05).

CONCLUSIONS

Early proactive soft-tissue coverage of total-knee arthroplasty is critical to long-term success. In cases where reactive treatment is required, significantly worse outcomes and a high rate of complications should be expected.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, III.