Quantitative Evaluation and Midterm Progress of Reconstructed Toe Thickness in Lateral Ray Polydactyly of the Foot.

In lateral ray polydactyly, the reconstructed toe often tends to become thicker, but no standard evaluation criteria for this thickness are available. 57 patients (68 toes) with Hirai-Togashi classification type II, III, or IV whom we were able to follow-up for more than 6 months after the operation were underwent measurement of the "Reconstructed toe width to Third toe width ratio." In addition, 16 patients who could be followed up for 3 years through the mid-term course were evaluated for mid-term progress. At 6 months after surgery, the mean R/T ratio was 1.246. In patients who could be followed up for 3 years after surgery, the mean R/T ratios at 6 months after surgery and at 3 years were significantly decreased. This result suggests that the thickness of the reconstructed toe may become relatively thin in the long term.

Surgical management and postoperative evaluation based on morphological classification in central polydactyly of the foot.

PURPOSE: Central polydactyly of the foot is rare, with few reports on surgical methods and treatment indications. In this study, based on the experience of central polydactyly in our department, we will consider morphological classification and describe our treatment plan. METHOD: In this retrospective study, 11 patients (11 digits) with central polydactyly were identified among 136 patients of polydactyly of the foot (2009-2018). They were classified according to morphologic characteristics: type I, the duplicated digits are independent of each other; type II, digits of the same size are duplicated; and type III, digits of different sizes are duplicated. RESULTS: In morphologic classification, there were 4 cases of type II and 7 cases of type III, but there was no case of type I. For type II, surgery was performed using the Bilhaut-Cloquet (BC) procedure in 2 patients, bone-removing flap (flap) method in 1 patient, and simple ablation in 1 patient. For type III, surgery was performed using the BC procedure in 1 patient, flap method in 3 patients, simple ablation in 2 patients, and ligation in 1 patient with floating type. CONCLUSION: In order to obtain good cosmetic results in digits of morphologic classifications type II and III, it is necessary to select the surgical approach with careful consideration of every feature.

Salvaging exposed microtia cartilage framework with negative pressure wound therapy.

One of the most severe complications of auricular reconstruction for microtia is exposure of the cartilage framework. Recently, negative pressure wound therapy (NPWT) has become popular for a variety of complex wounds but reports on methods for microtia reconstruction are scarce. Thus, we aimed to detail the use of NPWT for cartilage exposure in microtia reconstruction. We retrospectively analyzed 7 cartilage exposure wounds in 6 patients treated by NPWT after auricular reconstruction for microtia. All wounds appeared from postoperative days 3 to 30 with 3 on the antihelix, 2 on the helix, 1 on the triangular fossa and 1 on the scaphoid fossa. Skin defect sizes ranged from 1 to 24 mm2 and 2 cartilage frames were infected at onset. Our NPWT system was the KCI Negative Pressure Wound Therapy with V.A.C.Ⓡ GranuFoam Black™ or Silver™ and continuous suction was applied in a range of 25-125 mmHg. All wounds healed within 8 to 39 days with NPWT antecedent cases taking longer than surgery ones. All cartilage frames survived but partial cartilage atrophies remained in 4 cases. Although a secondary infection occurred in an NPWT antecedent case it was still useful as a continuous external drainage system to remove dead space exudate and stimulate granulated tissue formation. In addition to vigilance against secondary infection, surgeons should consider an additional surgical intervention if the wound fails to improve within 7 days.

Intramedullary fixation with bioabsorbable and osteoconductive hydroxyapatite/poly-L-lactide threaded pin in digital replantation.

In digital replantation, Kirschner wire (K-wire) fixation has commonly been used for osteosynthesis. On the other hand, K-wires are often obtrusive because of protrusion from the replanted digit. We describe a case series treated using hydroxyapatite/poly-L-lactide (HPLLA) threaded pins, which are not only bioabsorbable, but also osteoconductive, for osteosynthesis in crushed amputation or comminuted fracture, including distal phalanx amputation. Using an HPLLA threaded pin, 10 digital replantations were performed between July 2016 and April 2018. The precisely cut pin is manually pushed into the fracture site as an intramedullary nail. The pin is first pushed into the distal site, and then into the proximal site, after drilling with a K-wire of the same diameter as the pin. All amputations were crush type, and levels of amputations were Tamai zone I in three cases, zone II in two and zone III in five. Eight of the 10 digits survived. The two digits that did not survive showed venous insufficiency. Bone union of the eight digits was successfully obtained after 9-19 weeks (median 12 weeks). No adverse events occurred such as distortion of the pin, infection or foreign body reaction. The HPLLA threaded pin may be an adequate device to fix fractures in digital replantation.

Free-flap reconstruction for full-thickness oral defects involving the oral commissure combined with oral modiolus reconstruction using a fascial sling.

BACKGROUND: Oral modiolus reconstruction is important in unilateral oral commissure removal including the modiolus. However, the proper procedure is not yet established. We performed free-flap reconstruction for full-thickness oral defects involving the oral commissure combined with oral modiolus reconstruction using a fascial sling. PATIENTS AND METHODS: From 2008 to 2018, six oral carcinoma patients, aged 65 to 86 years, underwent free-flap modiolus reconstruction after tumor resection. The resulting lip defects of 10% to 80% were labial (two patients), buccal (two patients), and mixed (two patients). RESULTS: Five anterolateral thigh flaps including one perforator and one radial forearm flap were performed. The oral defects were covered with folded flaps (size, 11 × 6-18 × 7.5 cm2 ). The orbicularis oris stumps were connected to the masseter with a fascia lata or palmaris longus tendon (length, 15-20 cm), arranged in a Y-shape in four patients and a V-shape in two patients. All the flaps survived without complications. Almost all the patients achieved good oral static effects (lip deviation and drooping) and dynamic effects (mouth opening, oral commissure narrowing, and diet) in the 6 to 65 months' follow-up. CONCLUSION: Free-flap reconstruction combined with oral modiolus reconstruction using a fascial sling achieves good oral static and dynamic effects for full-thickness oral reconstruction involving the oral commissure.

A case of mediastinitis with an exposed artificial blood vessel that was associated with right ventricular wall damage during treatment.

We report a serious case of right ventricular wall damage during mediastinitis treatment, which was successfully treated with negative-pressure wound therapy with continuous instillation (NPWT-CI).

Appropriate Use of Intravenous Unfractionated Heparin after Digital Replantation: A Randomized Controlled Trial Involving Three Groups.

BACKGROUND: The purpose of this study was to clarify the appropriate use of unfractionated heparin as an anticoagulation agent after digital replantation. METHODS: This study was a prospective, randomized, single-blind, blinded-endpoint method, three-arm, parallel-group, controlled clinical trial conducted at a single institution. A total of 88 patients (101 fingers) following digital amputation and subsequent repair by anastomosis of both arteries and veins were randomly allocated into three groups: (1) control group (no heparin dose), (2) low-dose heparin group (10,000 IU/day), and (3) high-dose heparin group (start at 15,000 IU/day, then adjust the dose to achieve an activated partial thromboplastin time of 1.5 to 2.5 times the baseline). The outcomes were assessed regarding the proportion of success at 2 weeks after replantation of amputated digits, total or partial necrosis, and occurrence of complications. RESULTS: No significant differences were found among the three groups, except for complications of congestion. The odds ratio of the heparin group compared with the control group for a success proportion was 5.40 (95 percent CI, 0.85 to 34.20; p = 0.027) in subjects aged 50 years or older. Significant elevations of activated partial thromboplastin time, aspartate transaminase, and alanine aminotransferase occurred in high-dose heparin groups on day 7. CONCLUSION: Unfractionated heparin administration is considered effective for patients aged 50 years or older, although the routine use of unfractionated heparin is not necessary after digital replantation. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, II.

Maggot debridement therapy with a direct dressing can cause compression injuries in patients with chronic limb ischemia.

While there are no reports regarding dressing-associated iatrogenic skin ulcer as an adverse event of maggot debridement therapy (MDT), MDT is clinically used on patients with critical limb ischaemia with dermal fragility. Herein we report causes and counter measures for a case of iatrogenic skin ulcer induced by MDT dressing.

Coronary Artery Disease in Patients with Critical Limb Ischemia Undergoing Major Amputation or Not.

BACKGROUND: Due to the increase of elderly and diabetes patients, surgeons encounter patients requiring treatment of critical limb ischemia (CLI) in the presence of systemic arteriosclerotic diseases. In this study, we retrospectively investigated the prevalence of coronary artery disease (CAD) in patients with CLI who underwent major (above-the-ankle) amputation or nonmajor amputation (below-the-ankle amputation or debridement of wound). METHODS: We retrospectively investigated 129 consecutive patients surgically managed for CLI in our institution between January 2013 and December 2015. The prevalence of CAD was defined as a cardiac treatment history or significant vascular stenosis (stenosis of > 75%). The outcomes were compared between patients who underwent major amputation (n = 36) and nonmajor amputation (n = 93). Additionally, archived record of 566 patients treated nonsurgically by percutaneous transluminal angioplasty in our institution was investigated to evaluate patients with milder peripheral artery disease. RESULTS: CAD was present in 83 patients (69%), including 82% of patients who underwent major amputation and 63% of nonmajor amputation group. The prevalence of CAD was significantly higher in the major amputation group (P = 0.042). Ejection fraction was not significantly different (P > 0.05). Among the 566 CLI patients treated by only percutaneous transluminal angioplasty, 227 (40%) had CAD, which was a significantly lower prevalence than those surgically treated (P < 0.001). CONCLUSIONS: The presence of CAD is more frequent in CLI patients who require extended surgical management of the limb than in those who do not. Evaluation of CAD and careful perioperative management are important for patients with CLI patients.

Maggot debridement therapy for a patient with critical limb ischaemia and severe cardiac dysfunction: possibility of limb salvage.

Ischaemic skin ulcer occurred on the foot of a 73-year-old man who had a history of fulminant myocarditis with severe cardiac dysfunction. We attempted wound bed preparation by maggot debridement therapy and salvaged his limb. It can be one of the adjuvant treatment strategies for critical limb ischaemia.

Eyelid Reconstruction Using Oral Mucosa and Ear Cartilage Strips as Sandwich Grafting.

BACKGROUND: The eyelid structure can be divided into an inner layer and an outer layer. Reconstruction of a full-thickness eyelid defect is accomplished by full-thickness composite tissue transfer or combined layered reconstruction. We present a new technique for inner layer reconstruction using ear cartilage and oral mucosa. METHODS: The oral mucosa graft is harvested from the inner side of the lower lip to fit the defect size and shape. The ear cartilage graft is harvested as a rectangular strip. The harvested mucosa is sutured to the defect margin and the cartilage strip graft is interposed to the defect. Finally, the outer layer of the defect is covered with skin flaps. Consequently, the ear cartilage graft is sandwiched between the mucosa graft and the skin flap. RESULTS: We used this technique for the reconstruction of 13 full-thickness eyelid defects of various locations, sizes, and shapes. Ten cases involved the lower eyelid, 2 cases involved the lower eyelid including the medial canthus, and 1 case involved the upper eyelid. The oral mucosa graft survived in all patients. The reconstructions were successful and there were no postoperative reports of conjunctival or corneal irritation. CONCLUSIONS: The present technique using a combination of an ear cartilage strip graft and oral mucosa graft is an easy and versatile technique for reconstruction of inner layer eyelid defects. We believe that the beneficial effects of tears, which are richly oxygenated, improved survival of the grafted mucosa.

The Effect of Smoking on Necrosis Rate in Digital Replantation and Revascularization with Prostaglandin E1 Therapy: A Retrospective Study.

BACKGROUND: Most microsurgeons believe that smoking and severity of injury adversely affect the outcome of digital replantation surgery. As countermeasures, several pharmacologic agents have been used for the perioperative period. The purpose of this retrospective study was to examine whether the rate of necrosis is appreciably different across smokers versus nonsmokers with prostaglandin E1 therapy. METHODS: The authors' study subjects included 144 patients (184 digits) who underwent replantation or revascularization between August of 2013 and August of 2015.The primary outcome was the incidence of total necrosis after replantation surgery, and the secondary outcomes were the rate of overall necrosis, proportion of total necrosis to overall necrosis, and total success. Intravenous administration of prostaglandin E1 was performed at the rate of 120 µg/day for 7 days after surgery in all patients. These outcomes of each injury type were compared between smoking and nonsmoking groups. RESULTS: Among the 184 injured digits, the incidence of total necrosis in smokers (23 percent) was higher than that in nonsmokers (17 percent), although no significant difference was shown (p = 0.36). The adjusted odds ratio was 1.17 (95 percent CI, 0.51 to 2.69). Similarly, there was no significant difference in the secondary outcomes between the two groups. CONCLUSION: The authors' retrospective study found no significant difference in the formation or extent of necrosis after replantation or revascularization between smoking and nonsmoking groups when all patients were treated with prostaglandin E1. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, II.

Pseudo-Hirschsprung's disease with rectal hypoganglionosis: an autopsied case of circulatory failure due to severe constipation.

We report a 21-year-old female patient who suddenly died of circulatory failure due to pressure from megacolon allied with pseudo-Hirschsprung's disease. Since 3 years before her death, she had exhibited the feeling of abdominal distention, which was diagnosed as constipation. However, her constipation did not respond well to the prescribed oral administration of laxatives and enemas. She was found dead at home in the morning, lying on her back. An autopsy revealed a decreased number of ganglion cells in the rectum, suggesting hypoganglionosis. In cases of intractable chronic constipation, careful investigation of the cause of such symptoms is important.