ECONOMIC ANALYSIS OF ENZYMATIC DEBRIDEMENT VERSUS STANDARD BURN CARE: A RETROSPECTIVE ANALYSIS.

When compared to standard surgical management, rapid enzymatic debridement of deep burns reduces the need for surgery while achieving similar long-term results. However, few studies have directly compared the costs of standard surgical and enzymatic burn care. We conducted a study comparing the care costs of 44 adult burn patients treated before (n=22) and after (n=22) introducing rapid bromelain-based enzymatic debridement (BED) of deep burns. Mean age was 59 years, 54% were male, and mean total body surface area (TBSA) was 23.5%. Burn etiology included flame and scalding burns (8). Groups treated with standard of care and enzymatic debridement were comparable in terms of age, sex and TBSA. Burn management with BED significantly reduced total debridement costs as well as grand total costs when compared with traditional surgical care. Such reduction was mostly related to lower costs associated with reduced surgical care and less facilities and resources consumption in the BED group.

Comparativement au traitement standard, l'excision enzymatique précoce (EEP) réduit la nécessité de chirurgie, à résultats égaux à long termes. Très peu d'études ont comparé les coûts de ces deux stratégies. Nous avons comparé 2 groupes de 22 patients profondément brûlés ayant pour l'un été pris en charge conventionnellement, l'autre ayant bénéficié d'une EEP. L'âge moyen était de 59 ans, 54% étaient des hommes, la surface brûlée moyenne de 23,5% (les 2 groupes étaient comparables). Seuls 8 patients avaient été ébouillantés, les autres étant brûlés par flamme. L'utilisation d'EEP réduisait significativement le coût de la prise en charge, en rapport avec la réduction de l'utilisation de locaux et de matériel consécutifs à la chirurgie.

Knee Region Coverage with Reversed Gracilis Pedicle Flap (GReSP Flap).

INTRODUCTION: To treat severe soft-tissue complications of total knee arthroplasty, we used an extended reversed gracilis flap based on secondary pedicles (the GReSP flap). STEP 1 PREPARE WOUND BED: Locate the gracilis and pedicles, then debride the wound bed. STEP 2 EXPOSE GRACILIS MUSCLE: Expose the superficial aspect of the muscle, while protecting the saphenous vein and nerve. STEP 3 CHECK MUSCLE PERFUSION: Temporarily clamp the main vascular pedicle to ensure blood supply when perfused only by the secondary pedicles. STEP 4 MOBILIZE MUSCLE FLAP: Transect the proximal tendon of the gracilis muscle to provide maximal length for the muscle flap and ligate the main vascular and nerve pedicles. STEP 5 COVER WITH SKIN GRAFT: Suture the flap in place and cover with skin graft. STEP 6 POSTOPERATIVE CARE: Immobilize the knee for two weeks; follow with rehabilitation to restore range of motion. RESULTS & PREOP/POSTOP IMAGES: We treated three patients who had an infection at the site of a total knee arthroplasty and exposure of the implant. WHAT TO WATCH FOR: IndicationsContraindicationsPitfalls & Challenges.

Reversed gracilis pedicle flap for coverage of a total knee prosthesis.

BACKGROUND: Poor wound-healing and skin necrosis are potentially devastating complications after total knee arthroplasty. Primary soft-tissue coverage with a medial or lateral gastrocnemius transposition flap is typically the first choice for reconstruction. The aim of this study was to evaluate the use of a distally based secondary-pedicle flap of the gracilis muscle for reconstruction of a soft-tissue defect. METHODS: The characteristics of the distally based (secondary) pedicles of the gracilis muscle were studied with use of dissection (ten cadavers) and computed tomographic angiograms (fifty patients). On the basis of the anatomical features, an extended reversed gracilis flap based on the secondary pedicles was used in three patients with severe soft-tissue complications of total knee arthroplasty. RESULTS: The mean number of secondary pedicles was 1.8 (range, one to four). The pedicles originated from the superficial femoral or popliteal artery. The most proximal pedicle was often the largest (mean caliber, 2.0 mm), and its point of entry into the gracilis muscle was an average (and standard deviation) of 21 +/- 3.6 cm (range, 16 to 28 cm) from the ischiopubic branch. A significant positive association (p = 0.001; r(2) = 0.49) was found between the caliber of the proximal secondary pedicle and the number of other secondary pedicles. In all three patients, the adequate caliber of the secondary pedicles (as shown on preoperative computed tomographic angiograms) and good muscle vascularization confirmed the utility of the gracilis as a distally based pedicle flap. CONCLUSIONS: For the treatment of large soft-tissue defects of the patella or the proximal part of the knee, or for soft-tissue reconstruction over an exposed total knee prosthesis, the reversed gracilis pedicle flap may be an alternative to, or may be integrated with, a lateral or medial gastrocnemius flap.

Surgical anatomy of the radial nerve at the elbow.

An anatomical study of the brachial portion of the radial nerve with surgical implications is proposed. Thirty specimens of arm from 20 fresh cadavers (11 male, 9 female) were used to examine the topographical relations of the radial nerve with reference to the following anatomical landmarks: acromion angle, medial and lateral epicondyles, point of division between the lateral and long heads of the triceps brachii, lateral intermuscular septum, site of division of the radial nerve into its superficial and posterior interosseous branches and entry and exit point of the posterior interosseous branch into the supinator muscle. The mean distances between the acromion angle and the medial and lateral levels of crossing the posterior aspect of the humerus were 109 (+/-11) and 157 (+/-11) mm, respectively. The mean length and calibre of the nerve in the groove were 59 (+/-4) and 6 (+/-1) mm, respectively. The division of the lateral and long heads of the triceps was found at a mean distance of 126 (+/-13) mm from the acromion angle. The mean distances between the lateral point of crossing the posterior aspect of the humerus and the medial and lateral epicondyles were 125 (+/-13) and 121 (+/-13) mm, respectively. The mean distance between the lateral point of crossing the posterior aspect of the humerus and the entry point in the lateral intermuscular septum (LIS) was 29 (+/-6) mm. The mean distances between the entry point of the nerve in the LIS and the medial and lateral epicondyles were 133 (+/-14) and 110 (+/-23) mm, respectively. Our study provides reliable and objective data of surgical anatomy of the radial nerve which should be always kept in mind by surgeons approaching to the surgery of the arm, in order to avoid iatrogenic injuries.

The gracilis muscle and its use in clinical reconstruction: an anatomical, embryological, and radiological study.

The gracilis muscle is used widely in reconstructive surgery, as a pedicled or as a free microsurgical flap, for soft tissue coverage or as a functioning muscle transfer. Many studies, based on cadaver dissections, have focused on the vascular anatomy of the gracilis muscle and provided different data about the number, origin, and caliber of its vascular pedicles. Computed tomographic (CT) angiography of both thighs of 40 patients (35 males and 5 females, mean age: 63 years) have been analyzed to provide a detailed anatomical description of the arterial supply of the gracilis muscle. The gracilis muscle had a mean length of 41 +/- 2.1 cm. The principal pedicle enters the gracilis muscle at a mean distance (+/-SD) of 10 +/- 1 cm from the ischiopubic attachment of the muscle. Its caliber shows a mean value of 2.5 +/- 0.5 mm, and it is statistically larger when originating directly from the deep femoral artery (45%) than from its muscular branch supplying the adductors, i.e., the "artery to the adductors" (46%) (P < 0.01). A significant correlation between the caliber of the artery of the main pedicle and the volume of the gracilis muscle was found (P < 0.01). The mean number of distal accessory pedicles is 1.8 (range, 1-4,) and the artery of the first of these pedicles shows a mean caliber of 2.0 mm. There is no correlation between either the number or the caliber of the artery of the accessory pedicles and the volume of the gracilis muscle. CT angiography, providing detailed images of the muscular and vascular structures of the thigh of each patient, could be a useful preoperative study for the reconstructive surgeon. It would allow a personalized planning of a gracilis flap, reducing the risk of iatrogenic damage.