Multiple pilonidal sinuses of both hands in a dog groomer: A case report

OBJECTIVE

Pilonidal sinus of the hand is an occupational hazard for barbers, cow milkers, sheep shearers and dog groomers. Here, we report on a dog groomer who had four pilonidal sinuses.

CASE PRESENTATION

A 49-year-old woman working as a dog groomer complained of multiple non-erythematous and fluctuant nodules on both hands, associated with pain, which had been identified five years previously. On the skin of her right hand, three nodules were observed on the volar (diameter: 1.5 cm) and medial (diameter: 1.4 cm) sides of fifth metacarpophalangeal joint and the volar aspect of the distal phalanx of the small finger (diameter: 0.7 cm). On the left hand, a 2-cm diameter nodule was identified on the volar side of the fifth metacarpophalangeal joint region. The nodules were excised surgically. A 5-mm long hair was removed from one nodule. Histopathology confirmed pilonidal sinus, treated by excision. One month postoperatively, the wound had healed uneventfully.

CONCLUSION

When nodules are found in dog groomers, clinicians should consider the possibility of pilonidal sinus disease.

Rethinking the causes of pilonidal sinus disease: a matched cohort study

Our understanding of pilonidal sinus disease (PSD) is based on a paper published 29 years ago by Karydakis. Since then, surgeons have been taught that hair more easily penetrates wet skin, leading to the assumption that sweating promotes PSD. This postulate, however, has never been proven. Thus we used pilocarpine iontophoresis to assess sweating in the glabella sacralis. 100 patients treated for PSD and 100 controls were matched for sex, age and body mass index (BMI). Pilocarpine iontophoresis was performed for 5 min, followed by 15 min of sweat collection. PSD patients sweated less than their matched pairs (18.4 ± 1.6 µl vs. 24.2 ± 2.1 µl, p = 0.03). Men sweated more than women (22.2 ± 1.2 µl vs. 15.0 ± 1.0 µl in non-PSD patients (p < 0.0001) and 20.0 ± 1.9 µl vs. 11.9 ± 2.0 µl in PSD patients (p = 0.051)). And regular exercisers sweated more than non-exercisers (29.1 ± 2.9 µl vs. 18.5 ± 1.6 µl, p = 0.0006 for men and 20.7 ± 2.3 µl vs. 11.4 ± 1.4 µl, p = 0.0005 for women). PSD patients sweat less than matched controls. Thus sweating may have a protective effect in PSD rather than being a risk factor.

Fibrin glue for pilonidal sinus disease

BACKGROUND

Pilonidal sinus disease is a common condition that mainly affects young adults. This condition can cause significant pain and impairment of normal activities. No consensus currently exists on the optimum treatment for pilonidal sinus and current therapies have various advantages and disadvantages. Fibrin glue has emerged as a potential treatment as both monotherapy and an adjunct to surgery.

OBJECTIVES

To assess the effects of fibrin glue alone or in combination with surgery compared with surgery alone in the treatment of pilonidal sinus disease.

SEARCH METHODS

In December 2016 we searched: the Cochrane Wounds Specialised Register; CENTRAL; MEDLINE; Embase and CINAHL Plus. We also searched clinical trials registries and conference proceedings for ongoing and unpublished studies and scanned reference lists to identify additional studies. There were no restrictions with respect to language, date of publication or study setting.

SELECTION CRITERIA

We included randomised controlled trials (RCTs) only. We included studies involving participants of all ages and studies conducted in any setting. We considered studies involving people with both new and recurrent pilonidal sinus. We included studies which evaluated fibrin glue monotherapy or as an adjunct to surgery.

DATA COLLECTION AND ANALYSIS

Two study authors independently extracted data and assessed risk of bias. We used standard methods expected by Cochrane.

MAIN RESULTS

We included four RCTs with 253 participants, all were at risk of bias. One unpublished study evaluated fibrin glue monotherapy compared with Bascom's procedure, two studies evaluated fibrin glue as an adjunct to Limberg flap and one study evaluated fibrin glue as an adjunct to Karydakis flap.For fibrin glue monotherapy compared with Bascom's procedure, there were no data available for the primary outcomes of time to healing and adverse events. There was low-quality evidence of less pain on day one after the procedure with fibrin glue monotherapy compared with Bascom's procedure (mean difference (MD) -2.50, 95% confidence interval (CI) -4.03 to -0.97) (evidence downgraded twice for risk of performance and detection bias). Fibrin glue may reduce the time taken to return to normal activities compared with Bascom's procedure (mean time 42 days with surgery and 7 days with glue, MD -34.80 days, 95% CI -66.82 days to -2.78 days) (very low-quality evidence, downgraded as above and for imprecision).Fibrin glue as an adjunct to the Limberg flap may reduce the healing time from 22 to 8 days compared with the Limberg flap alone (MD -13.95 days, 95% CI -16.76 days to -11.14 days) (very low-quality evidence, downgraded twice for risk of selection, performance and detection bias and imprecision). It is uncertain whether use of fibrin glue affects the incidence of postoperative seroma (an adverse event) (risk ratio (RR) 0.27, 95% CI 0.05 to 1.61; very low-quality evidence, downgraded twice for risk of selection, performance and detection bias and imprecision). There was low-quality evidence that fibrin glue, as an adjunct to Limberg flap, may reduce postoperative pain (median 2 versus 4; P < 0.001) and time to return to normal activities (median 8 days versus 17 days; P < 0.001). The addition of fibrin glue to the Limberg flap may reduce the length of hospital stay (MD -1.69 days, 95% CI -2.08 days to -1.29 days) (very low-quality evidence, downgraded twice for risk of selection, performance and detection bias and for unexplained heterogeneity).A single RCT evaluating fibrin glue as an adjunct to the Karydakis flap did not report data for the primary outcome of time to healing. It is uncertain whether fibrin glue with the Karydakis flap affects the incidence of postoperative seroma (adverse event) (RR 3.00, 95% CI 0.67 to 13.46) (very low-quality evidence, downgraded twice for risk of selection, performance and detection bias and for imprecision). Fibrin glue as an adjunct to Karydakis flap may reduce length of stay but this is highly uncertain (mean 2 days versus 3.7 days; P < 0.001, low-quality evidence downgraded twice for risk of selection, performance and detection bias).

AUTHORS' CONCLUSIONS

Current evidence is uncertain regarding any benefits associated with fibrin glue either as monotherapy or as an adjunct to surgery for people with pilonidal sinus disease. We identified only four RCTs and each was small and at risk of bias resulting in very low-quality evidence for the primary outcomes of time to healing and adverse events. Future studies should enrol many more participants, ensure adequate randomisation and blinding, whilst measuring clinically relevant outcomes.

[Presacral tumor as a differential diagnosis of recurrent pilonidal sinus]

BACKGROUND

Retrorectal or presacral space is occupied during embryological stem cell development and therefore may contain a heterogeneous group of tumors.

CLINICAL CASE

We report the case of a 22-year-old male with a pilonidal cyst operated due to recurrent pilonidal sinus cyst. Final diagnosis after pelvic computed tomography is large retrorectal cystic tumor and magnetic resonance diagnosis of a presacral cystic compatible wtih germ cell tumor. The tumor was removed surgically through the abdomen and diagnosis of cystic teratoma was established.

CONCLUSION

Retrorectal tumors are rare lesions whose presence must be ruled out in case of recurrent sinus.

[Trends in incidence and long-term recurrence rate of pilonidal sinus disease and analysis of associated influencing factors]

OBJECTIVES

To investigate the trends in incidence and long-term recurrence rate of pilonidal sinus disease (PSD) within the German Armed Forces, and analyse the influence of variable factors, such as different surgical methods, body constitution and smoking amount, to incidence and long-term recurrence rate of PSD.

METHODS

Information of all the patients being admitted with primary PSD to the surgical departments of three hospitals of the German Armed Forces between 1980 and 1996 was collected and analyzed, 500 patients of which were interviewed.

RESULTS

Two of the 500 patients were dead, and every one of the rest 498 patients agreed to take part in the interview. The incidence of PSD rose from 0.3/1000 in 1985 to 2.4/1000 in 2007. The recurrence rates were decreasing within 16 years of treatment from 33% in 1981 via 23% in 1986 to 12% in 1996 (P = 0.01). Recurrence rates of primary open wound healing (16.8%) compared to primary suture (31.0%) differ significantly (P < 0.01). While the mean body weight within the army rose 1 kg per decade, population shows an increase of 1.9 kg per decade though not being an influencing factor on the recurrence rate (P = 0.72). Smoking of more than 20 cigarettes per day proved to be a significant factor on the recurrence rate of PSD (P = 0.015).

CONCLUSION

While the recurrence rates-especially of primary open wound treatment-decreased, the incidence of PSD rose nearly tenfold.

Sinus excision and primary closure versus laying open in pilonidal disease: a prospective randomized trial

BACKGROUND

Surgical excision is the standard treatment for chronic pilonidal disease, but all excisional techniques are associated with tissue loss, risk of wound break down, and chronic healing problems.

OBJECTIVE

The aim of the study was to compare sinus excision and primary closure vs a laying open technique in a prospective randomized trial.

DESIGN, PATIENTS, AND INTERVENTIONS

Eighty patients were randomly assigned to sinus excision and primary closure (n = 39) or laying open (n = 41). Follow-up was performed 1, 3, and 12 months after surgery.

MAIN OUTCOME MEASURE

The main outcome measure was the healing rate after 1 year.

RESULTS

The healing rate was significantly higher after excision and closure than after laying open at 1 month (20 of 39 vs 8 of 41; P = .005) and 3 months (36 of 38 vs 28 of 39; P = .013) after surgery. At follow-up 12 months after surgery no difference was seen in healing rate between the treatment arms (33 of 37 vs 37 of 38; P = .198).

CONCLUSIONS

This prospective randomized trial shows that sinus excision and primary closure results in faster healing than laying open does, but there is no difference in healing rate after 1 year. The laying open procedure is minimally invasive with small risks for the patient, and it might therefore be considered more frequently as the first choice of treatment (www.clinicaltrials.gov. Unique identifier: NCT00997048).

[A dog's groomer with a painful hand]

A dog's groomer suffered from an abscess on the palmar side of his right hand which was caused by the migration of cut dog hairs into the epidermis, diagnosed as an occupational interdigital sinus pilonidalis. The patient was treated by surgical excision of the abscess.

Treatment of pilonidal sinuses in Denmark is not optimal

INTRODUCTION

The standard treatments of chronic pilonidal sinuses (PS) were previously wide excision with primary midline closure or open treatment by non-specialist surgeons resulting in high rates of unhealed wounds and recurrences. An evidence-based shift from the now obsolete midline procedures towards off-line procedures seems to have occurred over the past 3-4 years. We decided to analyse the present state of PS treatment in Denmark.

MATERIAL AND METHODS

A questionnaire was sent to all public hospitals and private clinics potentially treating PS. It included questions on the volume of procedures, experience of surgeons, and methods of anaesthesia and procedures in different cases.

RESULTS

The questionnaire was answered by 37 departments (response rate 95%) in public hospitals and by 92 private clinics (response rate 84%). Off-midline closure was performed in 75% of the public departments, but some of these are also still performing midline surgery in some case. A total of 54% of the public departments are still performing midline surgery in some cases. Local analgesia is used in only 41% of the departments, and in 58% of these departments, local analgesia is used in fewer than 10% of the cases. In 11 (39%) departments, elective PS is performed by one or two surgeons, and there is a significant relation (p = 0.033) between low experience and large number of PS surgeons per department. Midline surgery seems to be performed in departments with more PS surgeons.

CONCLUSION

Too many surgeons are still performing obsolete midline surgery. National guidelines are needed. The number of cases treated under local analgesia is unsatisfactorily low.

Pilonidal sinus - management in the primary care setting

BACKGROUND

Postanal pilonidal sinus is a skin condition in the midline of the natal cleft. A primary pit forms in the midline, caused by a hair follicle that has become infected, into which loose hairs enter to create a track or abscess.

OBJECTIVE

This article explains how a pilonidal sinus develops and presents, and details methods of treatment in the primary care setting and specialist management options.

DISCUSSION

The devastation of recurrence with further pain, embarrassment, and time off work or school (in some cases for months or years), plus the prospect of more surgery is still common for patients with postanal pilonidal sinus. This can be avoided with the correct management. Surgery now has methods that produce early healing, low recurrence rates and acceptable cosmetic results.

Pilonidal sinus of the neck

A pilonidal sinus is most commonly seen in the sacrococcygeal region. Here we describe a rare case of pilonidal sinus of the neck following trauma due to shaving. Excision of the sinus with primary repair resulted in complete healing of the lesion with no recurrence. The possible pathogenesis of this acquired condition is also discussed.

["Barber's hair sinus": new clinical observation]

The AA describe an unusual case of pilonidal sinus in a barber. The clinical analysis showed the presence, in all digital spaces, of erythemateous areas irregularly infiltrated by small fistular tracts and a keratinization area. In the first interdigital space of the left hand, the discharge of a bristle from the apex of a papule was also visibly evident. The histological examination showed the presence of a foreign body granuloma, with giant cells, lymphocyte and plasma cells, centered on a bristle fragment immersed in a collagenous matrix with abundant keratine, skin thickening and fibrous dermis. Using a probe, it was possible to follow the fistular path and obtain the discharge of several hair fragments, conglutinated by corneous scales, but it was not possible to achieve clinical cure of the lesion. The solution to the problem therefore required surgical therapy.

Pilonidal Sinus in Japan Maritime Self-Defense Force at Yokosuka

Pilonidal sinus is known to be common among soldiers but not among Asian individuals. Few reports have discussed the occurrence of pilonidal sinus in the navy. We analyzed the incidence and etiological factors of 12 cases (11 patients, with 1 recurrence) of pilonidal sinus diagnosed between 1998 and 2004 in Japan Self-Defense Force Hospital Yokosuka. All patients were male, and all lesions were in the sacral area. The patients' average age and body mass index were 29.1 years and 27.4, respectively. The surgical procedures used were primary closures (10 cases, 83.3%) and flaps (two cases, 16.7%), and the number of postoperative hospital days averaged 11.8. Pilonidal sinus was not found to be significantly common among Japan Self-Defense Force personnel in general (7 of 11 patients with pilonidal sinus; not significant); however, it was significantly more common among the crew members of Japan Self-Defense Force ships (seven of seven patients; p < 0.05), which suggests that the on-board lifestyle contributes to the occurrence of pilonidal sinus.

A case of subcutaneous myxopapillary ependymoma presenting as a pilonidal sinus

We describe a rare neurogenic tumour presenting as a pilonidal sinus. This case illustrates the pitfalls associated with the management of a commonly occurring surgical condition. Pilonidal sinuses are often the province of trainee surgeons and while ependymomas are rare, this example emphasises the need to send the pilonidal sinus tract for histological examination.

Surgical treatment of sacrococcygeal pilonidal sinus with the Limberg transposition flap

BACKGROUND

Pilonidal sinus is a common chronic disease of the sacrococcygeal region. Although many surgical methods have been suggested, an ideal method is still lacking because of high recurrence rates.

METHODS

This prospective study was conducted in 63 patients who were treated with the use of a rhomboid excision and Limberg flap closure for sacrococcygeal pilonidal sinus. The follow-up period ranged from 4 to 52 months (mean, 25 months).

RESULTS

The mean hospital stay was 3 days (range, 2-7 days) and the mean time to return to work was 15 days (range, 12-26 days). Early wound complications and recurrence were encountered in 6% and 3%, respectively. Nineteen percent had numbness at the operation site and 63% were not pleased with cosmetic appearance of the scars.

CONCLUSIONS

The results favor rhomboid excision and Limberg flap closure in the treatment of sacrococcygeal pilonidal sinus, especially in recurrent cases and in patients with extensive involvement. Low recurrence rates, shorter hospital stay, and time off from work may outweigh the disadvantages related to unfavorable cosmetic appearance.

[Surgical treatment of pilonidal sinus with open surgical technique]

BACKGROUND

Personal experience and results about the surgical treatment of pilonidal sinus using the open technique operation are reported.

METHODS

Between January 1984 and June 2001, 577 patients (457 males and 120 females) underwent this surgical technique. Eighty-five patients presented recurrences of the under-lying disease previously treated with closed technique in other centres. In order to reduce the risks of recurrence, pilonidal sinus was widely resected in order to remove every fistulous track laterally or towards the anal edge. The surgical wound has to be wide, carefully drained, without vertical walls: the outer part of the wound should be wider than its bottom. The persistence of a hairless scar is a suitable result to avoid relapses.

RESULTS

This surgical technique allowed very good

RESULTS

Postsurgical morbidity was not observed in these patients; the median time to achieve healing was 8+/-2 weeks. Furthermore, after a 3 year follow-up, only 4 patients (0.69%) relapsed. Recurrent dressings are needed; anyway they neither represent a limit of this technique nor lead to a long term absence from working. The postsurgical period of resting is quite similar to that usually prescribed after other surgical techniques and mainly depends on the patient nature. The treatment with connective tissue repairing drugs may be useful to obtain an effective healing.

CONCLUSIONS

In the authors' experience, the open surgical technique may obtain the definitive removal of pilonidal sinus, even if particularly wide, with a safe postsurgical course and a very hight percentage (99.31%) of complete healing without any relapse.

Sacrococcygeal pilonidal sinus: historical review, pathological insight and surgical options

Sacrococcygeal pilonidal disease is a common and well recognized entity. For many years the cause of sacrococcygeal pilonidal sinus has been matter of debate. When the treatment is considered, there was a frequent lack of success of the surgical methods of excision regarding morbidity, healing, recurrence and cure. All these factors rendered the acquired thesis of pilonidal sinus disease to be more accepted. In dealing with the pathogenesis of pilonidal sinus disease, Karydakis attributed the hair insertion process to three main factors: the invader, i.e. the loose hair; the force, which causes the insertion; and the vulnerability of the skin to the insertion of hair at the depth of the natal cleft. The sinus is initiated from a small midline opening lined by stratified squamous epithelium. Additional sinuses are frequent and have lateral openings. Malignant transformation is rare but cases of squamous cell carcinoma and verrucous carcinoma have been reported. Pilonidal sinus disease consists in a symptoms complex with presentations ranging from asymptomatic pits to painful draining lesions that are predominantly located in the sacrococcygeal region. Asymptomatic pits do not require treatment. Options for treatment of acute abscess include aspiration, drainage without curettage, and drainage with curettage. The choice of a particular surgical approach depends on the surgeon's familiarity with the procedure and perceived result in terms of low recurrence of sinus and a quick healing of resulting cavity or surgical wound. Conservative nonoperative management, closed methods, laying of track, wide excision and open drainage, wide excision and primary closure, and limited excision are the methods currently used. From the profusion of studies, it is apparent that various methods are being tried and no one method is universally acceptable. Recurrence rates vary with the technique, operator and length of follow-up. Primary closure with a lateral approach appears to give the best results.

Interdigital pilonidal sinus in a dog groomer

Pilonidal sinus is an acquired condition that usually develops in the sacrococcygeal area or other hair-bearing areas. It has also been described as an occupational disease, especially when present interdigitally. We describe the case of a 47-year-old dog groomer with interdigital pilonidal sinus and briefly review the postulated pathogenesis, clinical characteristics, differential diagnosis, and treatment.

Lack of evidence that obesity is a cause of pilonidal sinus disease

OBJECTIVE

To find out whether pilonidal sinus is more common among obese people.

DESIGN

Retrospective study from hospital records.

SETTING

Two university hospitals, Turkey.

SUBJECTS

419 patients who were operated on for pilonidal sinus disease; and 213 age and sex matched patients with benign diseases other than pilonidal sinus disease and who were not morbidly obese acted as controls.

MAIN OUTCOME MEASURES

Comparison of body mass index (BMI) in the two groups.

RESULTS

Patients with BMI of 25-30 were classified as overweight (61/419, 15% compared with 28/213, 13%), and those with BMI of 30 or more as obese (7/419 compared with 4/213, 2% in each group). Mean (SD) BMI of patients with pilonidal sinus disease was 26.0 (3.9) compared with 25.6 (3.9) in the control group (p = 0.4).

CONCLUSION

Obesity alone is not an important factor in the aetiology of pilonidal sinus disease.

Subungual pilonidal sinus of the hand in a dog groomer

Interdigital pilonidal sinus of the hand is an occupational hazard in barbers, sheep shearers and cow milkers. We present a case of a subungual pilonidal sinus of the thumb of a dog groomer, complicated by the development of osteomyelitis in the distal phalanx.

Interdigital pilonidal sinus in the hand

We report three cases of interdigital pilonidal sinus including a case of a woman with this condition. Previous reports that surgical excision is curative in all cases are not supported by our experience.

Pilonidal cyst: cause and treatment

PURPOSE

The treatment of sacrococcygeal pilonidal cyst, despite being considered a well-defined clinical entity and opinion as to its acquired origin being almost unanimous, has some controversial aspects. Surgery is the principal method of treatment, and several techniques have been proposed. All of them try to reduce morbidity, to offer conditions of fast cicatrization, to have a low recurrence rate, and to offer cure. This study was undertaken to review the available data in the literature about the cause of the disease and to determine the current optimal method of treatment, evaluating morbidity, healing, recurrence, and cure.

METHODS

Data available on the topic of pilonidal cyst in the English-language literature were obtained from Index Medicus and MEDLINE and were reviewed and analyzed.

RESULTS

There is nearly a consensus that pilonidal cyst is acquired, hair being the agent that causes the disease. Presently, the most-used surgical procedure is excision of the cyst, with open or closed wound for healing. However, many authors prefer to use the method of incision and curettage. New surgical techniques are being proposed.

CONCLUSION

The majority of authors conclude that sacrococcygeal pilonidal cyst is an acquired disease, although a minority believe it is congenital. Although excision is the method of choice for most surgeons, in our experience the incision and curettage procedure is the best surgical treatment with regard to morbidity, healing, recurrence, and cure of the disease.

Simple and effective surgical treatment of pilonidal sinus: asymmetric excision and primary closure using suction drain and subcuticular skin closure

PURPOSE

This study was planned to evaluate prospectively the results of 112 pilonidal sinus cases treated surgically by using asymmetric excision and primary closure with suction drain and subcuticular skin closure. It is aimed at elimination of the causative factors of pilonidal sinus.

METHOD

The patient's age, profession, weight and height, symptoms and signs, duration of symptoms, previous treatments, operation time and cost, hospital stay, return to normal activity, complications, pathologic and microbiologic examinations, and recurrences were noted. All pilonidal sinus cases except pilonidal abscess and extensive gluteal involvement were treated surgically. The procedure consists of an eccentric, elliptical excision of the affected tissue, mobilization of the flap to the sacrococcygeal fascia and the suturing of its edge to the lateral one. Penrose drains were placed in the first eight (7.14 percent) cases, but suction drains were placed in others. The cases were followed up for a mean of 2.4 years.

RESULTS

Twenty-eight (25 percent) cases had undergone previous operative procedures. Of 112 patients 106 (94.6 percent) were male. Mean age was 22.1 years. Mean history of disease was 4.2 years. The overall complication rate was 7.14 percent. Two (1.8 percent) wound infections, two wound breakdowns, three (2.7 percent) collections, and one (0.9 percent) recurrence were recorded. The collections were reduced to zero after first eight cases by using a suction drain. Sixty-eight of the patients (60.7 percent) had body weight over 90 kg, and the mean body mass index was 24.8. The mean hospital stay was 2.6 days, and the mean time off work was 12.4 days. The average healing time was 13.2 days. There were no anesthetic or surgical deaths.

CONCLUSION

The natal cleft is flattened and the incision scar and the incision line is transferred from the midline to the lateral side by performing the asymmetric excision and primary closure, and thus the essential cause of pilonidal sinus is eliminated. The procedure is simple, the complications and recurrences are very low, and it is seen to be an excellent procedure in the surgical treatment of uncomplicated pilonidal sinus disease.

Pilonidal cyst on the vault. Case report

Pilonidal cysts and sinuses are described as dermoid cysts which contain follicles of hairs and sebaceous glands. They clinically present as a classic case of inflammation which comes with pain, local infection and redness. The origin of pilonidal disease remains controverse. There are many hypothesis as lack of hygiene on the affected area and a penetration and growth of a hair in the subcutaneous tissue caused by constant friction or direct trauma on the damaged area. The option for clinical treatment is very frequent. However, taking into consideration the incidence and the possibility of recidive, surgical treatment is presently recommended. Complications include cellulitis and abscess formation. Pilonidal cysts are mostly found on the sacral region. In the literature is found description of pilonidal cysts on the penis, interdigital region on the hands as well as on the cervical region. We present a case of pilonidal cyst located on the vault biparietal region, without malignant degeneration.

The aetiology and management of pilonidal sinus

Although there are various treatment regimens and dressing techniques for the management of pilonidal disease, we recommend the 'open' technique for patients with an uncomplicated sinus. Patients with more complex sinuses or recurrent pilonidal disease should be treated by plastic surgeons.

Incidence and aetiological factors in pilonidal sinus among Turkish soldiers

OBJECTIVE

To study the incidence and causes of pilonidal sinus in Turkish soldiers.

DESIGN

Open study by questionnaire.

SETTING

Military and University hospitals, Turkey.

SUBJECTS

1000 soldiers who presented for their first medical examination.

MAIN OUTCOME MEASURES

Correlation between factors known to be associated with pilonidal sinus, and incidence of pilonidal sinus.

RESULTS

88/1000 soldiers had pilonidal sinuses; in 48 they were symptomatic and in 40 asymptomatic. The factors associated with the presence of a pilonidal sinus were: family history of pilonidal sinus (18/88 compared with 32/912, p < 0.0001); obesity defined as weight over 90 kg (34/88 compared with 32/912, p < 0.0001); being the driver of a vehicle (58/88 compared with 308/912, p < 0.0001); and the incidence of folliculitis or a furuncle at another site on the body (22/88 compared with 64/912, p < 0.0001).

CONCLUSIONS

Pilonidal sinus is an acquired condition, penetration of hair is the main cause, and the disease can be prevented if the aetiological factors are understood.

[Sacrococcygeal cyst or "pilonidal sinus"]

The acquired theory of puncture of hairs on the side of natal cleft is popular. There is still controversy on "pilonidal sinus" surgical treatment. A modification in the natal cleft cicatrization should be the correct surgical therapy. Postoperative treatment as hairs removal, infection control, wound healing are mandatory.

Pilonidal sinus: management objectives

In spite of a number of ingenious operative and non-operative techniques in the management of pilonidal sinus no single technique can be relied upon to prevent recurrence of this benign yet troublesome condition. Once thought to be a congenital condition it is now appreciated that pilonidal sinus most often an acquired condition due to accumulation of tough, bristly hair penetrating the skin, or local hair growing into a skin crevice, pit or abnormal follicle. The most common site is the upper natal cleft but the condition may occur in other sites especially where there is a crevice or irregularity of skin surface with pressure or suction applied to that region. Most surgical procedures have been designed to eradicate the existing sinus and the crevice in which hair tends to accumulate. However, without the presence of hair there can be no pilonidal sinus and, in the past, little attention has been given to preventing the re-accumulation of hair in the troublesome site; hence the risk of recurrence. Management objectives should be directed not only at eradicating the obvious lesion present but also to preventing recurrence of aetiological factors; especially the re-accumulation or re-growth of hair.

[Therapy of pilonidal sinus with the Limberg transposition flap]

Pilonidal sinus can not be mentioned as a minor surgery procedure because of high recurrence rate, high morbidity and long disability period. In our clinic between the years of 1988-1991, 92 pilonidal sinus cases were treated primarily with Limberg's flap technique. Only in two cases, late wound healing was detected, no other complications and no recurrences were seen. Compared with other primary treatment methods, Limberg's flap technique was observed to be much more convenient for pilonidal sinus cases.

[Retrospective study 10 years after plastic surgery for sacrococcygeal pilonidal sinus]

The authors give a brief summary on the etiology and pathomechanism of the sacrococcygeal pilonidal sinus. They have distinguished the congenital, cystic deformation (dermoid cyst) from the pilonidal sinus which is considered to be an adventitious illness. During ten years (1976-1985) 208 patients were operated on with the method the authors applied. Only one early recurrence was registered and 7.2% of the patients recovered from secondary healing. Delayed recurrences were analysed according to questionnaires. From 151 of the questionnaires only three male patients complaints referred to delayed recurrence.

[Pilonidal sinus]

Pilonidal sinus, acute or chronic suppuration of the sacrococcygeal region, is a common benign disease. Its treatment, usually surgical, remains controversial, between wide excision and limited excision and between primary closure and secondary closure. On the basis of our experience and a review of the literature, we propose limited excision with immediate closure for non-infected operations and exposure with immediate resection for pilonidal abscesses. Regardless of the technique used, the morbidity is high, associated with a recurrence rate of between 5 and 40%.

Patient characteristics and symptoms in chronic pilonidal sinus disease

Three hundred and twenty two patients with pilonidal sinus disease were studied to determine factors for the development and maintenance of the disease. A calculated incidence of the disease of 26 per 100,000 inhabitants was found. It occurred 2.2 times more often in men than in women. Age at presentation was 21 years for men and 19 for women. Patients had two years (median) disease history before being referred for treatment. A family history could be found in 38% of the patients. 50% had normal body weight, and 37% were overweight. Local trauma or irritation preceded the condition in 34%, and a sedentary occupation was reported by 44%. Male sex, adolescence or youth, and a familial disposition seem to be associated with the development of pilonidal sinus. Local trauma and overweight are the most important conditioning factors for development of symptomatic pilonidal sinus disease.

[The umbilical pilonidal cyst: a case report. Comments on its etiopathogenesis and treatment]

A rare case of umbilical pilonidal sinus is reported. Epidemiology and symptoms of this disease are analyzed and possible mechanisms of formation are discussed. Clinical as well as pathological patterns observed seem to support the hypothesis of a congenital etiopathogenesis. Total omphalectomy is proposed as definitive treatment in order to avoid recurrences.

Easy and successful treatment of pilonidal sinus after explanation of its causative process

Hair insertion causes pilonidal sinus, it prevents spontaneous recovery, delays healing of any wound in the depth of the natal cleft, and is the cause of recurrence. An understanding of the hair insertion process made it possible to avoid hair insertion in 6545 cases of the condition with the use of the advancing flap operation. Results have proved this to be an easy and successful way of treating and preventing recurrence of pilonidal sinus. Furthermore, that understanding has introduced the possibility of preventing pilonidal sinus, through ways simpler than the simplest operation.