Plastic Surgery最新文献

Background: Flap necrosis following facial rhytidectomy constitutes a vexing and grievous complication to the patient and the surgeon. Treatment modalities that can expedite wound healing and re-epithelialization rates are highly desired.

Objectives: To assess wound healing and re-epithelialization rates of open wounds following postrhytidectomy flap necrosis treated with commercially available charged polystyrene microspheres (Polyheal-1, Polyheal Ltd, Israel).

Methods: Flap necrosis following rhytidectomy with open wounds in three female patients were treated using dressings soaked with Polyheal-1. Wound closure rates were documented.

Results: The wounds demonstrated both accelerated granulation tissue formation and rapid re-epithelialization rates. No complications or side effects were encountered.

Conclusions: Charged polystyrene microspheres may offer a new and efficacious way to treat open wounds due to flap necrosis following facial rhytidectomy. Further research with larger patient numbers is still needed to verify these findings.

Background: Primary flexor tendon repair was first introduced in the 1960s. Since then, major advances in the understanding of flexor tendon anatomy and biology have led to improved outcomes following repair. Relative to the adult population, sparse knowledge exists as to which operative and postoperative treatments are most successful in children. This is due, in part, to the rarity of pediatric tendon lacerations compared with the adult population, but also related to challenges when working with smaller anatomy and the decreased compliance in children with respect to rehabilitation protocols. Published reports indicate that the incidence of 'good' flexor tendon repair outcomes is as low as 53%.

Objective: To determine the injury pattern and demographics of pediatric flexor tendon injuries involving zones I, II and III over the past decade, and to report results and identify treatment paradigms that are associated with optimal outcomes.

Methods: A retrospective chart review of all flexor tendon injuries involving zones I, II and III between April 2001 and December 2010 was performed. Parameters reviewed included demographics, injury mechanism, repair technique, outcomes and complications.

Results: A total of 47 patients with a median age of eight years experienced 100 tendon injuries. The most common cause of injury was glass (n=22), with the most common digit injured being the small finger (n=30). Tendon injuries included the following: flexor digitorum superficialis (n=46); flexor digitorum profundus (n=45), flexor pollicis longus (n=8); and adductor pollicis longus (n=1). Zone III had the highest number of injuries (n=47), followed by zone II (n=39). Ninety tendons were repaired using polyester suture, the most common size being 4-0. The modified Kessler technique was used in the majority of cases (n=62). Only 22 tendons underwent an epitendinous repair. Splint immobilization was used in 30 patients and a full cast in 17. The median duration of immobilization was four weeks. Forty-two patients underwent postoperative hand therapy. Using the American Society for Surgery of the Hand Total Active Motion (TAM) score, 40 of 47 patients experienced 100% recovery with no functional limitations. Two patients had a score <100%, not necessitating further surgery. A second operation was required for five patients. All patients in this group demonstrated 100% TAM at one year.

Conclusion: Pediatric flexor tendon injuries remain rare and usually involve the dominant hand holding or manipulating an object. An excellent outcome was found in 95.9% of patients assessed by TAM scores. Repair technique was chosen according to the size of tendon involved. Patients not treated with hand therapy and not immobilized in a cast were often too young to participate in rehabilitation. Based on the results, immobilization of young children for four weeks is saf

Background: There is a lack of literature examining the dosimetric implications of irradiating breast implants and expanders with internal ports inserted at the time of mastectomy.

Objective: To determine whether the presence of breast expanders with port in saline or silicone implants affect the dose uniformity across the breast when irradiated with various photon and electron energies.

Methods: One tissue-equivalent torso phantom with overlying tissue expanders in saline or silicone implants were irradiated using tangential fields with 6 MV and 18 MV photons and 9 MeV and 12 MeV electrons. All dose measurements were performed using thermoluminescent dosimeters (TLDs). The TLDs were arranged around the port and the perimeters of either the expander, or saline or silicone implant. Comparisons of measured radiation doses, and between the expected and measured doses of radiation from the TLDs on each prosthesis, were performed. Data were analyzed using two-tailed t tests.

Results: There were no differences in TLD measurements between the expander and the saline implant for all energy modalities, and for the expected versus actual measurements for the saline implant. Higher than anticipated measurements were recorded for a significant number of TLD positions around the silicone implants.

Conclusions: Radiation doses around saline implants or expanders with internal port were unaltered, whereas dose recordings for silicone implants were higher than predicted in the present laboratory/ex vivo study.

The palmaris longus, a slender fusiform muscle, is especially prone to exhibiting anatomical variance relative to other muscles in the upper extremity. The most frequent anatomical variation is the completely absent palmaris longus, followed by the reversed, duplicated, bifid or hypertrophied palmaris longus muscles. The reversed palmaris longus muscle represents a structure that is tendinous proximally and muscular distally (opposite of the normal palmaris longus). The present report describes a case of reversed palmaris longus muscle, followed by a literature review to illustrate the wide spectrum of anatomical variations in the palmaris longus muscle and their clinical and surgical relevance.

There are currently numerous techniques described in the literature that attempt to optimize wound closure following a fasciotomy. However, primary closure of fasciotomy wounds continues to be difficult to accomplish successfully because of the underlying edema sustained from the compartment syndrome. The approach described in the present report is simple and physiologically sound, and addresses the underlying pathology. The authors focus on alleviating edema by strictly elevating the limb, followed by primary closure. Twelve consecutive fasciotomy wounds, referred from 2005 to 2012, were closed using this approach. The average wound closure time was 3.4 days (range three to five days) following the initial consultation. All 12 fasciotomy wounds responded with no revisions, complications, failures or loss of skin sensation. The approach was successful in all anatomical locations that were closed and conversion to any techniques currently available in the literature was not necessary. There are no costs associated with this approach, making it practical in settings with limited resources. It has a high success rate, superior cosmetic results and, most importantly, it achieves an efficient closure time. Therefore, this approach is superior to current techniques and should be a part of a plastic surgeon's armamentarium.

There appears to be increased use of computed tomography angiography (CTA) in the preoperative planning of autologous perforator flap breast reconstruction. Despite the advantages of providing superior anatomical detail, concerns regarding cost and radiation exposure of this technique remain. In the current study, a paper-based survey was distributed to 44 plastic surgeons with a special interest in breast reconstruction at 19 different centres across Canada to collect their perspectives and practice characteristics with respect to the use of CTA as a preoperative imaging modality in breast reconstruction. The response rate of the survey was 75%. The majority of respondents commonly use perforator flap breast reconstruction and CTA in their breast reconstruction practice. Surgeons identified particular benefits of CTA in patients who had previously undergone abdominal surgery. However, more than one-half of the overall cohort was concerned about radiation exposure associated with CTA. A review of the literature suggests that it may be worthwhile to reduce the unnecessary risks of additional radiation exposure to the breast cancer population. A prospective study may help to better define the group of patients in whom CTA will provide optimal benefits in terms of reducing perioperative microvascular morbidity.

Background: Reconstruction of extensive lower lip defects is difficult. The authors describe a new technique of one-stage total lower lip reconstruction, with the ultimate goal being achievement of the delicate balance between adequate mouth opening and competent mouth closure, with satisfactory aesthetic outcome.

Methods: The authors applied their new reconstructive technique in a patient with extensive lower lip defect following excision of squamous cell carcinoma. Bilateral inferiorly based nasolabial flaps were used for reconstruction of lower lip. For vermillion reconstruction, a bucket-handle mucomuscular flap from upper lip was designed primarily using the pars marginalis portion of orbicularis oris. Compared with previously described techniques, this procedure is unique with respect to the alignment of the nasolabial flaps in relation to one another. Furthermore, this technique of vermillion reconstruction is a one-stage procedure with minimal morbidity, enables preservation of the vascular pedicle and innervation and maintains the orientation of orbicularis oris, thus providing a competent oral sphincter. To the authors' knowledge, this mucomuscular upper lip flap has not been described earlier and has definite advantages over the commonly used methods of vermillion reconstruction.

Results: The functional and aesthetic outcomes are satisfactory on follow-up, with normal lip movements and sensation, adequate mouth opening and oral competence, good colour and texture match with adjacent tissues, and excellent volume and quality of the vermillion. No subsequent corrective surgery is required.

Conclusions: This technique is simple and achieves the main goals of total lower lip reconstruction in a single stage with minimal morbidity.

A case involving a retired, elderly male war veteran with a symptomatic peroneus brevis muscle hernia causing superficial peroneal nerve compression with chosen surgical management is presented. Symptomatic muscle hernias of the extremities occur most commonly in the leg and are a rare cause of chronic leg pain. Historically, treating military surgeons pioneered the early documentation of leg hernias observed in active military recruits. A focal fascial defect can cause a muscle to herniate, forming a variable palpable subcutaneous mass, and causing pain and potentially neuropathic symptoms with nerve involvement. While the true incidence is not known, the etiology has been classified as secondary to a congenital (or constitutional) fascial weakness, or acquired fascial defect, usually secondary to direct or indirect trauma. The highest occurrence is believed to be in young, physically active males. Involvement of the tibialis anterior is most common, although other muscles have been reported. Dynamic ultrasonography or magnetic resonance imaging is often used to confirm diagnosis and guide treatment. Most symptomatic cases respond successfully to conservative treatment, with surgery reserved for refractory cases. A variety of surgical techniques have been described, ranging from fasciotomy to anatomical repair of the fascial defect, with no consensus on optimal treatment. Clinicians must remember to consider muscle hernias in their repertoire of differential diagnoses for chronic leg pain or neuropathy. A comprehensive review of muscle hernias of the leg is presented to highlight their history, occurrence, presentation, diagnosis and treatment.

Purpose: To examine treatment trends and costs associated with Dupuytren's disease (DD) in Canada.

Methods: Data regarding fasciectomies, fasciotomies and digit amputations performed for DD from 2005 to 2010 were extracted from the Canadian Institute for Health Information database. The data were analyzed according to year, sex and five-year age groups. The estimated annual physician reimbursement costs for DD in Ontario were calculated using Ontario Health Insurance Plan billing information and the 2010 Physician Schedule of Benefits.

Results: The number and rate of fasciectomies remained stable from 2005 to 2009 (mean of 4067 and 1.24 per 10,000, respectively), but increased in the 2009/2010 fiscal year (to 4458 and 1.32 per 10,000). The number of fasciotomies increased from 133 in 2005/2006 to 201 in 2008/2009, but dropped to 183 in 2009/2010. The mean number of amputations remained stable (12 procedures).The ratio of males to females undergoing fasciectomies remained stable (4:1). The highest rate of fasciectomies was performed for the age groups 65 to 69 years and 70 to 74 years. Estimated mean physician remuneration for DD in Ontario remained stable ($3.2 million per annum).

Discussion: The results regarding patient demographics are comparable with results from previous literature. There was a trend toward an increasing number of fasciectomies and fasciotomies annually, with fasciotomies increasing faster than fasciectomies, which is reflective of the aging population and the recent attention to fasciotomies in the literature. The present study was the first to investigate treatment trends and physician reimbursement costs for the management of DD in Canada.