Shay Shabat

Outcome of resection of a symptomatic os trigonum.

Background: While an os trigonum at the posterolateral aspect of the talus is usually asymptomatic, this inconsistently present accessory bone has been associated with persistent posterior ankle pain, which has been described as the os trigonum syndrome. We present the clinical results of excision of the os trigonum through a posterolateral approach and report several factors affecting the clinical outcome.Methods: During a five-year period from 1994 through 1999, forty-one patients had a failure of nonoperative treatment of os trigonum syndrome and underwent excision of a symptomatic os trigonum. In all cases, the os trigonum syndrome was diagnosed on the basis of the history, physical examination, and radiographs. Postoperatively, the patients were evaluated according to the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Scale. A questionnaire was used to evaluate the effect of several factors on the clinical outcome.Results: The average duration of follow-up was forty-four months. The postoperative AOFAS score averaged 87.6 points. The thirty-three patients who had had symptoms for two years or less prior to the surgery had an average postoperative score of 90 points compared with 78 points for the eight patients who had had preoperative symptoms for more than two years (p = 0.011). Eight patients had sural nerve sensory loss, which was temporary in four and permanent in four. A superficial wound infection developed in one patient, and reflex sympathetic dystrophy developed in another.Conclusions: An os trigonum that is persistently symptomatic after a minimum three-month trial of nonoperative treatment can be excised through a posterolateral approach with highly satisfactory results. The main complication of this procedure is sural nerve injury.Level of Evidence: Therapeutic study, Level IV (case series [no, or historical, control group]). See Instructions to Authors for a complete description of levels of evidence.

Does obesity affect the results of lumbar decompressive spinal surgery in the elderly

The prevalence of obesity among the population is increasing, including in many elderly people. The purpose of this study was to evaluate whether lumbar spinal surgery in elderly patients with different body mass indices influences pain, satisfaction rate, and activities of daily living. Two hundred ninety-eight elderly patients (older than 65 years), 153 women and 145 men, who had decompressive laminectomy, discectomy, or combinations of these procedures during 1990 to 2000 were followed up. Indications for surgery included limitation in doing activities of daily living, severe pain, or both. The patients were classified into one of four categories in terms of their body mass index. The operative parameters, pain reduction, satisfaction rate, and activities of daily living using the Barthel index were assessed. The more obese patients were younger, tended to be female, and were more symptomatic. All four groups of patients had reduction in pain, improvement in activities of daily living, and were satisfied with the operation. Our data suggest that it is reasonable to operate on patients who are elderly and obese and who have lumbar symptoms, with the appropriate indications.

Long-term outcome of decompressive surgery for Lumbar spinal stenosis in octogenarians

The purpose of our prospective study is to evaluate the surgical outcome among patients aged 80 years and above, who underwent surgery for lumbar spinal stenosis. We assessed patients’ clinical and demographic data, procedures, perioperative complications, preoperative and postoperative pain intensity, basic activities of daily living (BADL), patients’ satisfaction, the need for repeated surgery, and overall mortality. Thirty-nine patients more than 80 years of age were operated in our institution in the last decade. Twenty-five of them were followed-up with a mean 36.8 months after the operation. The Barthel index was used to evaluate pre and postsurgery ADL, and the visual analogue scale (VAS) was used to evaluate pain. The satisfaction rate of the patients before and after the operation and the complication rate were also evaluated. A significant reduction in VAS (P < 0.001) and a significant increase in the Barthel index (P < 0.001) were recorded. Seventy-six percent of the patients were very satisfied or somewhat satisfied with the operative results. Fifty-two percent of the patients had complications (0.9 complications per patients), however, about half of them were minor. No operative or perioperative mortality was noticed and the overall hospital stay for these elderly patients was 3.6 days on average. Surgery in very old elderly patients is safe and effective in the treatment of spinal stenosis, who did not respond well to the conservative treatment. The surgery did not increase the associated morbidity and mortality and most of the patients benefited from the surgery in terms of reduction in pain, increase in ADL and walking ability and overall increase in the satisfaction rate.

Surgery for hallux valgus with proximal crescentic osteotomy causes variable postoperative pressure patterns.

We prospectively evaluated the results of plantar pressure measurement in 32 patients (43 feet) who had a proximal crescentic osteotomy of the first metatarsal with a modified McBride procedure. The procedures effectiveness in increasing weightbearing under the first ray, decreasing pressure under the second metatarsal head, and the relationship of radiographic measurements of first metatarsal length and position to postoperative pressure measurements were evaluated. Mean followup was 29 months. Average peak pressure increased postoperatively under the second metatarsal head. Almost identical numbers of feet had first metatarsal elevation (12) or depression (11) greater than 2 mm. Radiographic evidence of first metatarsal elevation, but not shortening, was associated with diminishing peak pressure and pressure-time integral under the first metatarsal head and hallux. Five feet that had first metatarsal elevation greater than 2 mm had new second metatarsal transfer lesions develop. Eleven feet preoperatively and nine feet postoperatively had symptomatic second metatarsal pressure lesions. One lesion persisted, 10 resolved, and eight new lesions developed. Control of the crescentic osteotomy in the sagittal plane was unpredictable despite modification of the surgical technique to plantarly displace the distal segment of the first meta-tarsal. Although average second metatarsal pressure increased postoperatively, there was variability in the correlation of radiographic change and pedobarographic measurements.

Stress fractures of the medial malleolus--review of the literature and report of a 15-year-old elite gymnast.

Stress fracture of the medial malleolus is rare and not reported in children. We report a case of a 15-year-old elite gymnast with open physes sustaining a medial malleolar stress fracture. The patient was treated initially by rest and gradually returned to sport with full recovery. Two months later she developed a complete fracture of the medial malleolus of the same side. This was treated surgically by open reduction and internal fixation with a cancellous screw and soon after the operation she returned to full activities. Emphasis is given to the suspected mechanism which led to this unique fracture and to the hormonal aspects in the professional adolescent gymnast. We recommend surgical treatment of stress fracture of the medial malleolus especially for elite athletes, leading to early recovery and return to sports activities.

The effect of insoles on the incidence and severity of low back pain among workers whose job involves long-distance walking

The prevalence and incidence of low back pain in general society is high. Workers whose job involves walking long distances have an even higher tendency to suffer from low back pain. A positive effect of insoles in reducing low back pain was found in professional sports players. This was not examined on people whose job involves walking long distances. In this double blind prospective study we examined the effectiveness of insoles constructed in a computerized method to placebo insoles in 58 employees whose work entailed extensive walking and who suffered from low back pain. The evaluation was performed by the MILLION questionnaire, which is considered as a valid questionnaire for evaluation of low back pain. We calculated the differences of the pain intensity before and after the intervention, in the employees using the insoles manufactured by computer in comparison to the users of the placebo insoles. In each group, the analysis was performed in comparison to the baseline. A total of 81% of the employees preferred the real insoles as effective and comfortable in comparison to 19% of the users of the placebo insoles (P<0.05). The results of this study indicate a substantial improvement in the low back pain after the use of the true insoles. The average pain intensity according to the MILLION questionnaire before the use of the insoles was 5.46. However, after the use of the real insoles and the placebo insoles, the average pain intensity decreased to 3.96 and 5.11, respectively. The difference of the average pain intensity at the start of the study and after the use of the real insoles was significant: −1.49 (P=0.0001), whereas this difference after the use of the placebo insoles was not significant: −0.31 (P=0.1189). The reported severity of pain also decreased significantly: a level 5 pain and above was reported by 77% of the subjects at the start of the study. After the use of the real insoles only 37.9% of the subjects reported a similar degree of pain severity, and 50% of the subjects did so after the use of the placebo insoles (P< 0.05). We did not find a link between low back pain and other variables such as gender, age, number of offspring, work seniority, smoking, previous use of insoles and previous medication. This study demonstrates that the low back pain decreased significantly after the use of real insoles compared to placebo ones.

Bispectral index monitoring does not improve early recovery of geriatric outpatients undergoing brief surgical procedures

PurposeTo assess if titration of sevoflurane using the bispectral index (BIS) monitor improves the early and intermediate recovery in geriatric outpatients undergoing brief urologic procedures under general anesthesia without muscle relaxants.MethodsAfter a standardized induction with propofol and fentanyl, a laryngeal mask airway was inserted and sevoflurane was administered in combination with 60% nitrous oxide in oxygen for maintenance of anesthesia in spontaneously breathing outpatients. In the Control group (n = 25), sevoflurane and fentanyl were titrated according to standard clinical practice. In the BIS directed group (n = 25), sevoflurane was titrated to maintain a BIS value between 50 and 60, and supplemental fentanyl, 25 μgiv boluses were administered to treat tachypnea. The intraoperative anesthetic and analgesic requirements, as well as the times to eye opening, removal of the laryngeal mask airway device, response to simple commands, orientation to person and place, and postanesthesia care unit discharge eligibility (fast-track score of 14) were assessed at specific time intervals.ResultsThe minimum alveolar concentration-hour of sevoflurane (0.25 ± 0.15 and 0.31 ± 0.2) and end-tidal concentrations of sevoflurane at the end of surgery (0.3 ± 0.3 and 0.4 ± 0.20%) did not differ significantly between the Control and BIS-directed groups, respectively. Although the percentage of patients requiring supplemental boluses of fentanyl was reduced in the BIS directed group (16vs 48%,P <0.05), the intraoperative BIS values and recovery times were similar in the two groups.ConclusionIn this non-paralyzed elderly outpatient surgery population, the use of BIS monitoring for titrating the maintenance anesthetic (sevoflurane) failed to improve the early recovery process.RésuméObjectifÉvaluer si le titrage du sévoflurane à ľaide d’un moniteur d’index bispectral (BIS) améliore la récupération précoce et intermédiaire des patients ambulatoires âgés après une brève intervention urologique sous anesthésie générale sans myorelaxants.MéthodeAprès une induction normalisée avec du propofol et du fentanyl, un masque laryngé a été inséré et le sévoflurane administré en combinaison avec un mélange de protoxyde d’azote et d’oxygène à 60 % pour maintenir ľanesthésie chez des patients en ventilation spontanée. Dans le groupe témoin (n = 25), le sévoflurane et le fentanyl ont été dosés selon la pratique courante. Dans le groupe sous monitorage BIS (n = 25), le dosage visait à maintenir une valeur de BIS entre 50 et 60, et du fentanyl complémentaire, en bolus de 25 μg iv, a été administré pour traiter la tachypnée. ľanesthésique peropératoire et les besoins d’analgésiques, de même que le temps précédant ľouverture des yeux, le retrait du masque laryngé, la réponse à des commandes simples, la reconnaissance des gens et du lieu et la possibilité de quitter la salle de réveil (score séjour bref de 14) ont été notés à des intervalles spécifiques.RésultatsLa concentration-heure de sévoflurane (0,25 ± 0,15 et 0,31 ± 0,2) et les concentrations télé-expiratoires de fin d’opération (0,3 ± 0,3 et 0,4 ± 0,20 %) n’affichaient pas de différence significative entre les groupes témoin et de monitorage BIS respectifs. Le pourcentage de patients qui ont eu besoin de bolus complémentaires de fentanyl était plus bas avec le BIS (16 vs 48 %, P < 0,05), mais les valeurs peropératoires de BIS et le temps de récupération étaient similaires dans les deux groupes.ConclusionDans cette population de patients ambulatoires âgés, opérés sans myorelaxants, ľusage du monitorage BIS pour le titrage de ľanesthésique de maintien (sévoflurane) n’a pu améliorer la récupération précoce.

Surgical management of spinal stenosis: a comparison of immediate and long term outcome in two geriatric patient populations

This retrospective study was performed to assess and compare the immediate safety and long term outcome of surgical decompression of spinal stenosis when performed for geriatric patients aged 65-74 years (Group A) and those >75 years (Group B) of age. Some 283 patients were studied (179 and 104 patients in Groups A and B, respectively). The mean follow-up time was 41.5 months (range: 9-115) and 42.9 months (range: 9-106) for Groups A and B, respectively. Within both treatment groups, there was a significant (P<0.0001) subjective improvement in low back and radicular pain, as well as the ability to perform daily activities. When compared to preoperative levels, the oral scores for pain while performing daily activities were significantly (P<0.001) improved in both treatment groups. The overall postoperative complication rate was similar between the groups. Age is not a contraindication for decompressive lumbar spine surgery. However, since both Group A and B patients are likely to suffer minor perioperative complications, increased vigilance and careful monitoring are essential for this high risk population.

Detection of urinary tract infection (UTI) in long-term care setting: Is the multireagent strip an adequate diagnostic tool?

Urinary tract infection (UTI) is one of the most commonly diagnosed and treated infection in elderly residents of long-term care (LTC) setting, and most of them are asymptomatic. Early diagnosis and treatment especially in this group of patients is very important because even a brief delay contributes to mortality as well as to reduce functional and cognitive decline. The purpose of the present study was to determine the validity of multireagent strips (Multistix 10 SG, Bayer, UK) compared with standard urinalysis for the early detection of UTI in LTC elderly patients. Urine specimens were examined for the presence of leukocyte esterase (LE) activity as an indicator of pyuria, nitrite production as an indicator of bacteriuria, erythrocytes (RBC), and protein. The sensitivity, specificity, predictive value, kappa agreement, and likelihood ration were determined for each of the four dipstick parameters measurement separately, and in four combinations were calculated against the urine culture for the diagnosis of UTI and asymptomatic bacteriuria. Ninety-six patients aged 65 years and older with symptomatic UTI were compared with similar number, age, sex and comorbidity status matched patients with asymptomatic bacteriuria. In both groups, urinary culture results were compared with the results of multireagent strips. The multireagent strips results were evaluated for the presence of LE activity as an indicator of pyuria, nitrite production as an indicator of bacteriuria, RBC, and protein. All positive sticks results were evaluated as single parameter and in combination of them. Positive urine cultures were found in 71% (68/96) of the patients with symptomatic and in 60% (58/96; p>0.05) of patients with asymptomatic UTI. In patients with UTI, using multireagent strips kappa agreement for LE was 0.53, for nitrite was 0.14, and in combination of them was 0.31. Similar results were reported in patients with asymptomatic bacteriuria, 0.35, 0.23, and 0.35m. The detection of RBC and protein, as single parameter or in combination with other parameters, decreases accuracy of the tests. Positive dipstick tests for LE and/or nitrite are not specific indicators of UTI, and are not suitable for screening of LTC inpatients for UTI because of high false-negative rates of the LE and nitrite.

En bloc resection of a C4 chordoma: surgical technique

The prognosis of aggressive benign and low-grade malignant tumors in the spine as in the limbs, seems to be mostly related to the feasibility of en bloc resection, while in the treatment of high-grade malignant tumors the protocols of treatment include the combination of chemotherapy, radiation and surgery. Indications, criteria of feasibility and surgical technique are extensively reported for the thoracic and lumbar spine. In the cervical spine few cases are reported of resection, due not only to anatomical constraint, but also to the rarity of finding a tumor accomplishing the criteria of feasibility. A case of double-approach vertebrectomy finalized to remove en bloc the body of C4 for a stage IA chordoma is reported. The first stage was posterior, aiming to remove the posterior healthy elements by piecemeal technique. The anterior approach consisted of contemporary right and left prevascular presternocleidomastoid approaches The specimen was submitted for the histological study of the margins, which resulted tumor-free. This technical note is finalized to confirm that en bloc resection of the vertebral body through total vertebrectomy is feasible in the midcervical spine by double approaches, provided the tumor involves only layers B and C, maximum extension sectors 5–8.