Conventional versus endoscopic free gracilis muscle harvest

Video-Endoscopic Mobilization of the Gracilis Muscle for Rectourinary Fistula Repair

INTRODUCTION

Transposition of the gracilis has been used in a large number of reconstructive procedures. Its advantage is its proximity to these defects and a good blood supply. Traditionally, the gracilis mobilization is performed by open surgery with one or more incisions. We describe our initial experience with the video-endoscopic mobilization of gracilis.

METHOD

We described a retrospective review of all patients who underwent gracilis muscle mobilization for treatment of rectourethral fistula, performed by video-endoscopy, between March 2013 and September 2017, for treatment of rectourethral fistula. Also, our surgical technique is described in detail.

RESULTS

Three patients, with a mean age of 66.6 years, underwent the procedures. The mean time for mobilization of the gracilis was 107 min (range 60-145). There was no case of donor area infection, no change in the sensitivity of the medial aspect of the thigh or chronic pain. Conversion to open surgery was not necessary in any case. The hospital discharge occurred in average after 4 days. The bladder catheter was removed after 4 weeks after cystography was performed without evidence of leakage. One patient had a recurrence of the fistula.

DISCUSSION

The gracilis is an excellent choice of tissue to be interposed in reconstructive procedures of the perineal region, especially in the treatment of rectourinary fistulas. However, endoscopic harvest of the gracilis muscle has not yet found its way into everyday practice. The results in the treatment of rectourinary fistulas are excellent, with a success rate of 87.7%. Our rate of 67% is below, probably due to the small number of cases. In open surgery, complications are uncommon; however, approximately half of the patients expressed concern about the painful scar, which can be reduced by minimally invasive access.

CONCLUSION

Video-endoscopic mobilization of gracilis muscle for the treatment of rectourethral fistula is feasible and safe. Studies comparing this technique with the conventional mobilization are required.

Free Gracilis Muscle Flap for Sarcoma Reconstruction: 19 Years of Clinical Experience

Background

Sarcoma treatment necessitates high-dose chemoradiation therapy and wide surgical margins that create wounds that are difficult to reconstruct. Many techniques have been developed to cover these defects, originating with muscle flaps such as the rectus abdominis and latissimus dorsi. The gracilis flap, which is best known in contemporary practice as a microneurovascular flap for functional reconstructions, is not usually considered a robust option for reconstruction after sarcoma extirpation.

Methods

We reviewed records of 22 patients (9 women) at our institution who underwent reconstructive surgery after sarcoma extirpation using gracilis flaps for soft-tissue coverage from 1998 to 2017. Neurotized gracilis flaps were excluded. The mean patient age was 51 years (range, 18–85 years), and mean length of follow-up was 53 months (range, 9–156 months). Patients had 7 tumor types, with fibrosarcomas and undifferentiated tumors being most common. There were 23 defects (mean size, 118 cm² (range, 54–200 cm²)). Defects were located most commonly in the foot and leg (n=9 each), upper extremity (n=4), and head and neck (n=1). The primary outcome was the flap success rate. Secondary outcomes were rates of major complications (unplanned reoperations, infections requiring intravenous antibiotics, and amputations); minor complications (superficial infections, partial skin-graft loss, partial flap necrosis, fluid collections treated in the office, and cosmetic reoperations); and sarcoma recurrence.

Results

Twenty-one flaps (91%) survived. Six patients (27%) experienced a major complication, and 12 patients (54%) experienced a minor complication. There were 2 amputations, for a limb salvage rate of 91%.

Conclusions

This series shows that the gracilis is well suited to covering large, compromised wounds across diverse anatomic features, which are the hallmark of sarcoma resections. The high rate of limb salvage and minimal donor-site morbidity further support the use of this flap as a first-line option for sarcoma reconstruction.

Minimally invasive harvesting of adipofascial scapular flaps

INTRODUCTION

Scapular flaps are a reliable system for reconstruction. Disadvantages of reconstruction with these flaps include unsightly scars at the donor site due to wound healing under excessive tension and the use of skin grafts. Minimally invasive harvesting techniques may reduce potential donor-site morbidity. There has been no report on endoscopically assisted harvesting of the scapular adipofascial flap.

METHODS

Two patients with large defects are reviewed. Endoscopically assisted minimally invasive techniques for harvest of scapular adipofascial flaps were used in reconstruction of these soft-tissue defects.

RESULTS

Both defects were successfully reconstructed in the primary setting without any donor-site wound complications.

CONCLUSIONS

This is the first time that a scapular flap has been harvested successfully with a minimally invasive technique for reconstruction. This technique allows the use of a scapular flap as a pedicled flap or as a free flap. Minimally invasive harvest of the adipofascial scapular flap has the advantages of short incision and better cosmesis of the donor site, for scarring is minimized and the incision can be closed primarily without skin grafting therefore reducing donor-site morbidity compared with the traditional open technique.

[Free re-innervated gracilis muscle transfer to restore flexion or extension of the fingers: about three cases]

Free re-innervated gracilis muscle transfer is used to restore fingers or wrist flexion or extension after severe forearm injuries and when none muscle transfer is possible. The long-term function after this procedure is evaluated for three patients treated in our unit. This microsurgical transfer is technically demanding but allows good fingers mobility and good autonomy for daily activities and working.

Endoscopically assisted sural nerve harvest for upper extremity posttraumatic nerve defects: an evaluation of functional outcomes

BACKGROUND

Peripheral nerve injuries in the upper extremity often require interposition of sural nerve grafts for reconstruction. Due to the poor donor-site appearance with standard techniques, and the potential for trauma to the nerve because of poor visualization during the harvest when the stepladder technique is used, the endoscope has been employed for nerve harvest.

METHODS

From January of 1997 until December of 2003, 15 patients with an average age of 27.5 years with posttraumatic upper limb nerve defects of the ulnar, median, or posterior interosseous nerves (crush, cutting, or avulsion injuries) underwent reconstruction with endoscopically harvested sural nerve. The nerves were harvested using atraumatic techniques under video monitor visualization. The functional results of sensation and motor function were assessed using British Medical Research Council scales.

RESULTS

All patients regained at least cutaneous pain and tactile sensibility, with most regaining two-point discrimination (nine patients achieved S3+). Two patients achieved complete recovery (S4). The 11 patients with motor nerve involvement achieved between M1+ and M5 after the initial reconstruction. Eight patients required a total of one immediate and nine secondary procedures to achieve the final outcome. The procedures included tenolysis (three patients), intrinsic tendon transfers (four patients), and opponensplasty (three patients). At the 4-year mean follow-up, grip power was M5 in 13 patients (86.7 percent) and M4 in two patients (13.3 percent).

CONCLUSIONS

Upper extremity sensory and motor nerve defects can be reconstructed with interposition of endoscopically harvested sural nerve grafts. The procedure is reliable, quick, and atraumatic, and results in reasonable motor and sensory recovery.

Endoscopically assisted repair of frontal sinus fracture

BACKGROUND

Classic approaches to frontal sinus fracture involve bicoronal or direct forehead incisions. However, these incisions cause paresthesia, scarring, and even alopecia. In the field of plastic and reconstructive surgery, endoscopically assisted surgery is now widely accepted, particularly for esthetic surgery. It also is applied for the management of midface and lower-face fractures, but rarely for treatment of the frontal area. The authors present their experience with the repair of frontal sinus fractures using the endoscopically assisted method.

METHODS

The surgery was performed with the patients under general anesthesia. Two slit incisions were placed in the hair-bearing area, through which a 4-mm 30 degrees endoscope was inserted. The subperiosteal dissection was performed toward the fracture site using an endoscopic periosteal elevator. The depressed fracture segments of the anterior table of the frontal sinus were reduced and fixed with microplates to restore the contour of the forehead. Seven consecutive patients received endoscopic correction of frontal sinus depressed fractures.

RESULTS

No patients required conversion conventional bicoronal incisions. Good anatomic reduction of the fracture sites, acceptable surgical scar, and esthetic recontour were obtained in all the patients. The postoperative course was uneventful, without any complications.

CONCLUSION

The endoscopically assisted method allows feasible reduction and fixation of a frontal sinus fracture. It avoids the complications of traditional methods and yields improved convalescence and esthetic results. It also helps in the diagnosis of unsuspected cerebrospinal fluid leaks. Thus, for anterior table fractures with an intact nasofrontal duct, endoscopically assisted surgery provides an alternative option of treatment.

Extended approach to the vascular pedicle of the gracilis muscle flap: anatomical and clinical study

Dissection of the proximal gracilis vascular pedicle proceeds in a dark tunnel-like space deep to the adductor longus. With the application of a previously described technique for an extended approach to the lateral arm free flap, the authors describe a novel technique that improves observation and thus facilitates dissection of the proximal gracilis vascular pedicle. A retrospective review of data for 18 consecutive patients who underwent gracilis muscle free flap harvesting with this modified technique between March of 1999 and October of 2001 was conducted, to assess flap viability and patient outcomes. A cadaveric dissection was also performed, to study the anatomical features of the region in depth and to test the proposed flap modification. After the standard incision has been made, the dominant pedicle is exposed on the medial aspect of the gracilis muscle, running in a fascial cleft between the adductor longus and the adductor magnus. Intramuscular branches to the adductor longus are divided. A space is bluntly created anterior and lateral to the adductor longus by separating the fibrous connections to the surrounding adductor and sartorius muscles on both sides of the vascular pedicle. The gracilis muscle is then divided and passed deep to the adductor longus, into this space. With this new position, the final dissection of the pedicle can easily be performed. The confluence of the venae comitantes is frequently encountered, providing a larger-caliber single vein for microvascular anastomosis. The ages of the patients ranged from 9 to 70 years. The majority (14 of 18 patients) had traumatic wounds. The free flap survival rate was 100 percent. One minor complication of a seroma at the donor site was observed. One major complication of venous thrombosis was detected on postoperative day 3, with complete flap salvage. No other complications were noted. This technique is safe and permits direct approach to and excellent observation of the proximal aspect of the gracilis pedicle, without the need for headlights or deep retractors. An additional benefit is the frequent finding of a single larger vein from the merging of the venae comitantes close to the deep femoral vessels.

Endoscopic harvest of the medial gastrocnemius muscle flap: a cadaveric study

The aim of our study was to prove that endoscopic-assisted harvest of the medial gastrocnemius muscle is as effective as the conventional technique. We performed endoscopic dissection on 10 fresh human cadavers, and found that the medial gastrocnemius muscle was easily harvested through a minor donor-site incision, because of its topography and constant dominant proximal vascular pedicle. The operative technique is described.