Pertinent Insights On Plastic Surgery And The Diabetic Foot

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Essential Insights To Ensuring Proper Patient And Procedure Selection

A multidisciplinary team approach is necessary for comprehensive management of patients with DFUs who often present with several comorbidities that can potentially impair wound healing.3

The reconstructive surgeon should be the “superintendent” when considering the type, extent and timing of the surgical closure. Important contributing factors include but are not limited to: the patient’s age, presence of comorbidities, level of adherence, presence of infection, vascular status, associated foot or ankle deformities, and the level of medical stabilization. One needs to heavily weigh all of these factors prior to selecting wound closure procedure(s).4

Physicians should not underestimate the assessment of the patient’s psychosocial status and home support system as these can dramatically influence surgical expectations and the postoperative course.

Treating physicians should pursue appropriate diagnostic testing in order to ensure appropriate medical optimization prior to surgery. Hemodynamic instability may require further cardiology and nephrology consultation for medical clearance and anesthesia considerations. One should address any infectious process through extensive surgical debridement and tailored antibiotic therapy before contemplating soft tissue reconstruction. The presence of greater than 105 organisms per gram of tissue cannot sustain a skin graft or flap, and will require further debridement before definitive coverage.5

The patient must also undergo a full evaluation for peripheral vascular disease in order to ensure viable perfusion, which can support the vascular demand required for healing.6 Staging of surgical procedures is often warranted to provide the clinical setting most suitable for plastic surgery techniques.

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Author(s): 
Zacharia Facaros, DPM, Crystal L. Ramanujam, DPM, John J. Stapleton, DPM, FACFAS, and Thomas Zgonis, DPM, FACFAS

   It is also important to inform the patient of the timeframe regarding dressing changes, associated wound care if necessary, bathing restrictions and appropriate emphasis on limb positioning and non-weightbearing status when applicable. Due to a majority of these patients being unable to maintain a non-weightbearing status, it is common to request physical therapy for assisted ambulation training and/or device recommendations.

   For further weightbearing relief to the surgical location, the reconstructive surgeon may incorporate surgical offloading via external fixation devices for immobilization and protection of the repaired wound.

In Conclusion

Several factors play key roles in determining the success or failure of skin flaps or grafting procedures. These factors include: stabilization and viability of the recipient and donor sites; vigilant clinical observation for monitoring viability; the presence of comorbidities and medical conditions; the elasticity and vascularity involved; and leaving the limb in a stable, mechanically sound position.

   The importance of acknowledging the timing of surgery, staging of procedures warranted, and the principles behind plastic surgery techniques as they pertain to the patient with a diabetic foot wound are instrumental for a successful outcome.

   Dr. Facaros is a Fellow in Reconstructive Foot and Ankle Surgery, and is a Clinical Instructor in the Division of Podiatric Medicine and Surgery within the Department of Orthopaedics at the University of Texas Health Science Center at San Antonio.

   Dr. Ramanujam is a Fellow in Postgraduate Research and is a Clinical Instructor in the Division of Podiatric Medicine and Surgery within the Department of Orthopaedics at the University of Texas Health Science Center at San Antonio.

   Dr. Stapleton is an Associate in Foot and Ankle Surgery at VSAS Orthopaedics in Allentown, Pa. He is a Clinical Assistant Professor of Surgery at the Penn State College of Medicine in Hershey, Pa.

   Dr. Zgonis is an Associate Professor, Fellowship Director and Chief of the Division of Podiatric Medicine and Surgery within the Department of Orthopaedics at the University of Texas Health Science Center at San Antonio. He is the Founder and Co-Chairman of the International External Fixation Symposium (IEFS), which is held annually in December in San Antonio.

References

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