The distally pedicled gracilis flap for salvage of complex knee wounds.

INTRODUCTION: Soft tissue defects around the knee joint resulting from trauma or because of wound breakdown after total knee arthroplasty present a challenge in a group of patients that often suffer from other co-morbidities. A pedicled gastrocnemius muscle flap remains a workhorse for this kind of wound. However, where the defect lies in the supero-lateral aspect of the proximal knee area, an alternative solution is required. The distally based pedicled gracilis flap has been described as an option for these cases where free-tissue transfer may not be an option and the pedicled gastrocnemius is not sufficient or has already been used. The purpose of this review is to evaluate the usefulness of this flap in the nine cases in which we have utilized it in our unit. METHODS: Nine patients underwent reconstruction of complex proximal knee wound defects with a distally based pedicled gracilis muscle flap. The mean age was 62 years (range 23-83). Five patients had wound breakdown following total-knee arthroplasty (TKR) and four patients had wound complications after road traffic accidents (RTA). Three of the nine flaps were delayed. RESULTS: Eight of the nine patients had successful salvage of the knee with the use of the distally based gracilis flap. Although four of the flaps suffered partial loss, this did not compromise the joint salvage. The patients were moderately satisfied with the reconstruction and achieved a mean range of movement of 75° (±12°). CONCLUSION: The distally based pedicled gracilis flap can be a salvage solution for complex soft tissue defects with exposed knee joint, patella or proximal part of knee or exposed knee prosthesis in cases where a pedicled gastrocnemius muscle is inadequate or the patient is not suitable for a free flap. Evidence Level IV.

The superficial outside-flap shunt (SOS) technique for free deep inferior epigastric perforator flap salvage.

A common cause for loss of a deep inferior epigastric perforator (DIEP) flap is venous congestion secondary to inadequate outflow via the deep perforating vessels. Further anastomosis of the superficial venous system provides effective outflow and salvage of the congested DIEP. Multiple methods have been described requiring dissection of additional recipient venous systems or around the perforating vessels in order to provide a vein onto which the superficial system may be anastomosed. These are potentially associated with increased morbidity and risk of damage to the pedicle. We describe an alternative technique of harvesting an additional length of deep inferior epigastric pedicle cranial to the perforator onto which an anastomosis may be performed. This avoids the need for additional dissection of recipient vessels or further handling of the perforator, its venae comitantes and the main pedicle of the flap thus reducing the risk of damage.

Giant anterior chest wall basal cell carcinoma: a reconstructive challenge and review of the literature.

Giant basal cell carcinomas (GBCC) are rare, accounting for <1% of BCCs. Those occurring on the anterior chest wall are a very rare subset that brings particular reconstructive challenges. We describe a 75-year-old man whose 13.5 cm diameter ulcerating GBCC on his left anterior chest came to medical attention following a fall. The lesion was resected en-bloc with adjacent ribs, and reconstructed with an omental flap, superiorly pedicled vertical rectus abdominus myocutaneous (VRAM) flap and split skin grafting. While the myriad reasons for delayed presentation of giant cutaneous malignancies are well documented, the complex nature of reconstruction and requirement for an integrated multidisciplinary approach are less so. It is of importance to note that the cicatricial nature of these lesions may result in a much larger defect requiring reconstruction than appreciated prior to resection. Documented cases of anterior chest wall GBCC and the treatment strategies employed are reviewed.

A survey of U.K. units and a suggested protocol for free flap reconstruction of the lower limb: follow-up and management in the first postoperative week.

A survey was performed of U.K. lower-limb reconstruction services and the protocol for management of free flaps to the lower limb in the first postoperative week. The postoperative period is of vital importance in these patients due to the complex nature of microsurgical tissue transfer. A range of answers were received in response to the questions regarding protocols, with no overall consensus on the postoperative plan for these patients. Patients are being managed differently in different units across the United Kingdom. A protocol that has been used successfully by the senior author is described, and we encourage others without a protocol to adopt this one.

Interosseous epidermoid cyst at the base of the distal phalanx.

Interosseous epidermoid cysts of the phalanges are rare, particularly at the base of the phalanx and if the lesion is tender. We report a case of a tender interosseous epidermoid cyst at the base of the distal phalanx of a young man.

Pediatric superficial scald burns--reassessment of our follow-up protocol.

The most common pediatric burn injury is a superficial scald. The current follow-up protocol for such burns includes review of the patient at 2 weeks postinjury and then 2 months later. The authors decided to review the protocol to assess the need for this second follow-up. A retrospective study reviewed the case notes of patients younger than 16 years at the time of their injury presenting with a scald over 5% TBSA. The progress of healing and scar development up to 5 years follow-up was assessed. This study showed that scalds healing within 2 weeks following injury rarely became hypertrophic. A prospective study was performed over a 10-month period. All children who suffered a superficial partial-thickness scald injury were included. At the 2-week appointment, the need for further follow-up was predicted. The accuracy of this prediction was assessed 2 months later. This study showed that an experienced member of the burns team could reliably predict at 2-week appointment those children who could be safely discharged with no subsequent need for scar management. This study suggests that it will be safe to modify the follow-up protocol, reducing the number of clinic attendances.

Superficial lymphatic system of the upper torso: preliminary radiographic results in human cadavers.

BACKGROUND: Lymphoscintigraphy has become a routine examination for identifying the sentinel lymph node in various cancer patients. Despite increasing clinical information, the basic anatomy of the superficial lymphatic system of the upper torso has not been fully elucidated. METHODS: Five female breasts, three anterior chest walls, and three forequarter specimens from fresh nine cadavers (two male and seven female) were used for this study. Our original radiographic method for delineating the lymphatics was applied. The course of the lymph vessels was traced from the x-ray films and color coded in accordance with their sentinel lymph node to define the lymph territories of the upper torso. In addition, cross-sectional studies were performed on the female breasts to demonstrate the three-dimensional pathway and connections of the lymphatic vessels. RESULTS: The lymphatic territories of the upper torso were divided by the midaxillary line. The anterior side drained into the external mammary or axillary vein lymph nodes and the posterior side drained into the scapular nodes. There was no significant difference between sexes. In most cases, one sentinel lymph node in the axilla notably covered a large lymph territory in both the upper arm and the upper torso. CONCLUSIONS: The authors have demonstrated by radiography and dissection the superficial lymphatics of the upper torso in male and female cadavers. The lymph vessels originating in the lower region of the upper torso have close spatial association with the breast tissue and seemed to play a key role in the breast lymph drainage.

Perforating lymph vessels in the canine torso: direct lymph pathway from skin to the deep lymphatics.

BACKGROUND: Classic anatomical lymphatic mapping in humans is represented by four territories in the torso divided by the midline and horizontal line at the L2 level. Each territory drains into the ipsilateral axillary or inguinal lymph nodes. Recently, preoperative lymphoscintigraphy for staging breast cancer and malignant melanoma has become common in the clinical arena. It reveals an undescribed direct pathway from the skin of the loin to intraabdominal lymph nodes. The authors investigated the presence of such a lymphatic route using a dog model. METHODS: The authors used seven greyhound dogs for this study. The caliber of their lymph vessels was similar to those of humans, and because of a lack of fat tissue under the integument, the vessels were identified easily. The authors applied their original radiographic technique using hydrogen peroxide and lead oxide for delineating the superficial lymphatic system. RESULTS: Lymphatic territories of the torso were classified with relation to their regional lymph nodes. The authors found perforating lymph vessels in the lumbar and gluteal regions. They originated from the skin, penetrated the abdominal wall, and then drained into paraaortic lymph nodes instead of the axillary and inguinal lymph nodes. They were always accompanied by blood vessels, especially perforating veins. CONCLUSIONS: The authors found perforating lymph vessels in a canine torso. They seem to be equivalent to the unexpected lymph pathways found in humans using lymphoscintigraphy.

The effects of injection of bovine vaccine into a human digit: a case report.

BACKGROUND: The incidence of needlestick injuries in farmers and veterinary surgeons is significant and the consequences of such an injection can be serious. CASE PRESENTATION: We report accidental injection of bovine vaccine into the base of the little finger. This resulted in increased pressure in the flexor sheath causing signs and symptoms of ischemia. Amputation of the digit was required despite repeated surgical debridement and decompression. CONCLUSION: There have been previous reports of injection of oil-based vaccines into the human hand resulting in granulomatous inflammation or sterile abscess and causing morbidity and tissue loss. Self-injection with veterinary vaccines is an occupational hazard for farmers and veterinary surgeons. Injection of vaccine into a closed compartment such as the human finger can have serious sequelae including loss of the injected digit. These injuries are not to be underestimated. Early debridement and irrigation of the injected area with decompression is likely to give the best outcome. Frequent review is necessary after the first procedure because repeat operations may be required.