Purpose of the study: Kyphoplasty was introduced to reinforce the anterior column in osteoporotic vertebral fractures. It can be used for non-osteoporotic fractures. The purpose of this work was to report the clinical and radiographic results of kyphoplasty for non-ostoporotic vertebral fractures.

Material and methods: From December 2005 to August 2008, we followed prospectively 21 patients (12 M, 9 F) mean age 45 years (16–58) treated for thoracolumbar fractures by kyphoplasty in order to reinforce the anterior column. There were 23 fractures (T11 = 2, T12 = 5, L1 = 8, L2 = 4, L3 = 4) Magerl: A1 = 6, A3.1 = 7, A3.2 = 1, B1 = 2, B2 = 7. All patients were assessed preoperatively, postoperatively, and at last follow-up with a visual analogue scale (VAS) and the EIFEL function score. The sagittal CT scans passing through the pedicles and the midline were used to measure: the height of the anterior and posterior walls of the fractured vertebra and the supra and infra vertebrae as well as the kyphosis angle.

Results: Thirteen fractures were treated by kyphoplasty alone; seven by kyphoplasty combined with percutaneous osteosynthesis; three by kyphoplasty combined with open osteosynthesis with decompression because of preoperative neurological deficits. Mean follow-up was 13 months (6–28). There were no postoperative neurological or infectious complications. At last follow-up, the mean VAS was 1.25 (05) and the mean EIFEL 4 (0–12). Preoperatively, mean compression was 40.9% (6.2–81.4) for the anterior column and 16.7% (0–60.2) for the posterior column. Postoperatively the respective values were 22.8% (5.1–69.3) and 12.3% (−12 to 72.6) for a mean correction of 46.2% for the anterior column and 14.3% for the posterior column. At last follow-up, compression was respectively 26.1% and 7.9%. The vertebral kyphosis was 16.3 (6–16.3) preoperatively and 9.1 (3–4) postoperatively (mean correction 8.7). At last follow-up, vertebral kyphosis was 9.1 (1.7–28.3).

Discussion: Kyphoplasty allows satisfactory restoration of vertebral height without loosing short-term correction. For us, kyphoplasty should be associated with posterior fixation in patients with posterior injury. For neurological lesions, kyphoplasty associated with decompression and posterior fixation avoid the need for complementary anterior procedures.

Purpose of the study: Percutaneous screw fixation is widely used for the treatment of non-displaced fresh fractures of the carpal scaphoid. This screw fixation can be achieved either via a volar approach (retrograde insertion) or via a dorsal approach (antegrade insertion). The purpose of our study was to define the best approach as a function of the orientation of the fracture line (types B1 or B2 in the Herbert classification).

Material and methods: We used 12 upper limbs. For each wrist we obtained three scanner images: in maximal flexion, in the neutral position, and in maximal extension. For each scanner image, the parasagittal slice corresponding to the ideal plane for screw position was identified by digital reconstruction. On each slice, the type B1 and B2 fractures were modellised, as was the displacement of the corresponding screws introduced via the volar incision (S1) or the dorsal incision (S2). Each virtual screw was positioned as perpendicular as possible to the fracture line. For each slice corresponding to a given wrist position, we measured the angles between the fracture line (B1, B2) and the screws (S1, S2), giving four angles V1 (S1-B1), V2 (S1-B1), D1 (S2-B1), D2 (S2-B2). Thus the angle closest to 90° was considered the most satisfactory.

Results: For B2 fractures, the position of the virtual screw perpendicular to the fracture line was possible via both the volar and the dorsal incision. For B1 fractures, it was impossible to position the screw perpendicular to the fracture line, but the dorsal approach with the wrist in maximal flexion gave the best position.

Conclusion: For B2 fractures, the dorsal and volar approach allow optimal screw insertion so the choice of the incision depends on the surgeon’s experience. For B1 fractures, we recommend the dorsal approach.

Purpose of the study: The sural flap with a distal pedicle is a commonly used flap for ankle or foot cover; it has been described as easy to achieve, versatile and reliable. Following several personal failures, we attempted to analyse the principle factors of unfavourable outcome and to determine the precise role for this flap in distal cover of the lower limb.

Material and method: We retrospectively analysed a series of 25 sural flaps with a distal pedicle performed by one operator among a series of 55 ankle and foot flaps. Outcome was assessed as complete flap survival; even partial necrosis was noted. Factors examined included patient age, context, localization and surgical factors.

Results: Eight flaps necrosed (7 partial and 1 total) leading to amputation (32% complications). Flaps with partial necrosis nevertheless all healed after repair.

Discussion: This series had a high failure rate, like earlier reports in the literature. Most of the necrotic flaps were observed in older patients with vulnerable tissues. Conversely, the size of the flap or the localization of the recipient site did not appear to affect outcome; there was no apparent learning curve. The harvesting technique and the difficulties presented by anatomic variations are recalled. Treatment of the pedicle is important but cannot explain all of the failures. Why the distal sural flap should be chosen among the different flaps available for the lower limb depending on the site and situation is not clear. Technical elements, such as two-phase harvesting can be helpful, but for us do not appear to improve the survival of this flap whose outcome remains difficult to predict.

Purpose of the study: Different posterior osteosynthesis techniques have been described for the treatment of unstable injury of the pelvic girdle. Bi-iliac fixation using threaded rods or plate-screw fixation has been proposed. The purpose of this work was to describe a modification of the posterior osteosynthesis using instrumentation designed for the spinal column.

Material and methods: From January 2006 to October 2008, four patients (three men, one woman, mean age 24 years, range 18–34) underwent surgery in our unit for unstable fractures of the pelvis with a trans-sacral posterior fracture line (AO classification C1.3–4). Two patients presented neurological signs including one by head trauma with hemiplegia. Two patients had an anterior fixation with an external fixator and another an anterior plate fixation. The operation was conducted via a posterior midline incision. After reduction of the fracture, the osteosynthesis was achieved with two poly-axial screws inserted in each of the iliac wings and connected by two rods and one or two cross connectors.

Results: Mean follow-up was 7.5 months (range 5–17). None of the patients developed infectious, neurological or mechanical complications postoperatively. Complete pain-free weight-bearing and walking were achieved in patients at three months. None of the patients had a horizontal or vertical misalignment callus measuring more than 5 mm. Screw analysis showed that three screws penetrated the sacroiliac joint in the first patient of the series with no clinical consequence.

Discussion: This posterior fixation technique for unstable fractures of the pelvis appears to be reliable and reproducible for type C fractures in combination with anterior fixation. It uses standard instrumentation for spinal osteosynthesis. A study with a larger population and longer follow-up is needed.

Purpose of the study: High-energy varus or valgus ankle trauma causes severe injury to the capsule and ligaments. We describe a presentation associating massive tears of the lateral/medial collateral ligaments with a transversal wound of the corresponding malleolus. This wound results from excessive tension on the skin cause by the major varus/valgus. We have defined this injury as an open and severe ankle sprain (OSAS).

Material and method: This was a retrospective analysis. We search the databases of three participating centres using the corresponding diagnostic and therapeutic codes from January 2005 to January 2009. The identified files were screened to select patients with OSAS.

Results: There were 11 cases of OSAS. Eight involved the lateral side of the ankle and three the medial side. Mean age was 41 years (range 21–45). All patients were victims of a high-energy trauma (five motorcycle accidents) and four patients had fallen from a high point. Associated injuries were tendon section (n=3), section of the deep fibular nerve (n=2), and section of the anterior tibial artery (n=1). Pneumarthrosis was the only visible anomaly on the plain x-rays of seven ankles. Diagnosis was confirmed preoperatively in all cases clinically with varus-valgus stress manoeuvres.

Conclusion: OSAS is a rare misleading injury. Confusion with a common wound is possible. The risk is to miss acute instability and thus its treatment. The diagnosis should be proposed for all transversal wounds without contusion over the malleolus with normal x-rays.

Purpose of the study: Hemophilic arthropathy is often located in the knee joint. Total knee arthroplasty (TKA) is the ultimate solution to total joint destruction, often observed in young patients. The purpose of this study was to evaluate the outcome of TKA in hemophilic patients and to describe specific features.

Material and methods: Hemophilics who underwent TKA between 1990 and 2004 were reviewed at mean 4.7 years follow-up: 30 TKA (7 posterior stabilized, 23 with preservation of the posterior cruciate) were implanted in 21 men, mean age 39 years, 17 with hemophilia A et 4 with hemophilia B. Seventeen patients were HBV-positive and eight were HIV-positive. Coagulation factors substitution was managed by the regional center for the treatment of hemophiliacs starting the day before the operation and for a minimal postoperative period of 21 days. The Knee Society score was used for assessment of clinical outcome.

Results: Preoperatively, mean flexion was 75° (range 40–100°), mean permanent flexion was 20° (range 5–45°). Range of joint motion was 56° on average (range of range of motion 10–105°). Early postoperative hemarthrosis occurred in eleven knees and seven of these required revision from day 4 to day 15. The four others resolved spontaneously. Six late infections (20%) developed in five patients (one bilateral infection). One patient was treated by arthroscopic wash-out, and four by arthrotomy. One required revision TKA in a two-stage procedure. Five patients received an adapted antibiotic therapy for an identified germ; the germ could not be identified in one patient. At last follow-up, mean flexion was 85°, mean permanent flexion was 10°, and mean range of motion was 71°. None of the patients complained of pain both at rest and during exercise.

Discussion: Hemophilic arthropathy is particularly painful, producing stiff joints in these immunodepressed patients. The known high rate of complications was again observed in this series, particularly infectious complications after TKA in hemophiliacs. These complications did not however alter the functional outcome. The gain in joint motion was modest but the absence of pain was a satisfactory result for these patients.

Purpose of the study: This study was conducted to assess short- and mid-term radiographic outcome of percutaneous posterior osteosynthesis (Sextant®)of thoracolumbar spine fractures and to identify indications and complications.

Material and methods: The Sextant® material was used for 14 patients with a lumbar spine or low thoracic spine fracture. Mean patient age was 40 years (range 19–84). Outcome was reviewed retrospectively. Osteosynthesis was performed for 11 fractures Mager 1 A3, 2 B2, 1 C1 with no neurological deficit. A complementary graft and anterior decompression were used 11 times (9 fibular, 1 posterior crest + rib, 1 cage). The pre- and postoperative and 3 month ART were noted. The position of the implants was assessed on the postoperative CT.

Results: Mean follow-up was 9.2 months (range 2–16). On average, ostheosynthesis was performed 15 days after trauma (range 1–90 days). There were no neurological or infectious complications. Sutures had to be resected in two cases due to cutaneous suffering. Nine patients wore a corset for three months. The absolute ART score improved from 18 preoperatively to 7 postoperatively and was noted at 14 at three months. Seven patients required heterologous blood transfusion after the anterior approach. Three screws (5.3%) were ectopic but without consequence.

Discussion: Indications for percutaneous osteosynthesis include spinal fractures without neurological complications with sagittal deformation for which an anterior approach is planned initially for mechanical reasons. An isolated anterior approach is possible in this type of fracture; nevertheless, percutaneous posterior osteosynthesis enables emergency reduction and fixation of the fracture, a simplified secondary minimal anterior approach for release, and bone grafting without anterior instrumentation. Three patients did nor require complementary anterior stabilization as the percutaneous oseosynthesis played the role of «internal fixation». The advantages of percuteneous osteosynthesis are the absence of bleeding and damage to the paravertebral muscles which limits morbidity, particularly infection. This technique can be performed in the emergency setting, especially for multiple trauma victims. The drawbacks of percutaneous osteosynthesis are the impossibility of performing a posterior fusion and release the spinal canal. The loss of correction observed were probably related to the type of graft (fibular). Use of a cage should limit graft impaction and loss of correction.

Purpose: Malignant primary tumours of the spine require wide resection with preservation of the cord and radicular elements. The purpose of this work was to report our oncological results and complications after spinal surgery for this indication.

Material and methods: Twenty-two patients, mean age 30 years (15–65) underwent surgery. The pathology diagnosis was made preoperatively. There were 16 high-grade tumours, Ewing (n=7), osteosarcoma (n=5), other (n=4), and six low-grade tumours, chondrosarcoma (n=5), osteosarcoma (n=1). Four patients experienced local recurrence after an insufficient initial resection and three required emergency laminectomy. Sagittal hemivertebrectomy was performed in 11 patients for pediculotransverse tumours and total vertebrectomy in 10 patients for corporeal tumours. Posterior fixation was not used in one patient (Ewing tumour) in order to preserve the Adamkiewitz artery.

Results: Complete oncological resection was achieved in 14 patients. The surgical margins were in a malignant zone in 7. At mean 6-year follow-up, ten patients were surviving disease-free (4 Ewing, 4 osteosarcoma, 2 chondrosarcoma), and one was living with active disease (chondrosarcoma). Eleven patients died: metastasis (n=4), local recurrence (n=6), infarction 3 months after surgery (n=1). Among the seven patients with local recurrence,osteosarcoma (n=5),chondrosarcoma (n=2), three had local recurrence at initial management and only one was living at last follow-up (active chondrosarcoma). There were no neurological complications; there were four mechanical complications (nonunion) after total vertebrectomy which required four re-operations.

Discussion: Survival rate in this series was 45% at six years, comparable with rates reported in the literature (40 – 50% at 5 years). Local recurrence was observed in 85% of patients whose surgical margins were in malignant tissue (67–100% in the literature). Among the four patients who had recurrent disease at the time of surgery, complete resection was possible in only one. This patient is living (Ewing sarcoma responding to adjuvant therapy). Incomplete surgery or a poor biopsy procedure aggravates the prognosis. Mechanical failure is observed after total vertebrectomy if anterior osteosynthesis is not associated with the posterior fixation.

Conclusion: Wide surgical resection of primary bone sarcomas of the spine provides encouraging results when the initial operation is successful. Better local control of Ewing sarcoma can be explained by its sensitivity to adjuvant therapy. Reconstruction after total vertebrectomy required anterior and posterior fixation.

Purpose: The Bankart procedure is widely studied in the literature. The general lack of postoperative complications is well recognised. The purpose of this work was to study patient comfort after Bankart procedures performed in the outpatient setting in order to validate the feasibility of this approach.

Material and methods: Thirty patients underwent Bankart procedure from June 2001 to 2002 performed by the same surgeon in an outpatient clinic. There were 28 men and two women, mean age 28 years. Pain was assessed with a visual analogue scale (VAS) at entry into the recovery room (P0), when leaving the recovery room (P1), on day 1 by telephone (P2), and on day 7 at consultation (P3). On day 1 and day 7, the patient was also asked if he/she preferred staying in hospital one night. The general anaesthesia protocol was the same for all patients. Intraopeartive analgesia was 20 mg nefopam (Acupan(r)) in a half-hour infusion, 2g propacetamol (Prodafalgan(r)) or paracetamol (Perfalgan(r)), and 100 mg ketoprofen (Profenid(r)) if there were no contraindications. In the recovery room, 3 mg morphine was delivered in by iv bolus until the VAS was less than 4/10 followed by oral paracetamol-codeine combination. Home treatment used 200 mg/d ketoprofen and paracetamol+codeine.

Results: The only complication was one superficial venous thrombosis of the upper limb diagnosed on day 15. There were no cases of postoperative haematoma or infection. One patient stayed one night in hospital after the procedure due to a vagal malaise which occurred at discharge; the VAS pain score was the same in this patient as in the others. Pain assessment was: D1=2 (5. 0); D2=1 (3, 0). Postoperative comfort was thus considered satisfactory. None of the patients would have preferred 24h hospitalisation.

Discussion: There has been only one series of 25 patients reporting results of patient comfort and cost of outpatient Bankart procedure. Patients underwent surgery with a scalene interblock. Three of the 25 patients preferred a 24h hospitalisation because of pain, perhaps due to the rebound pain effect after the block. Absence of drainage did not lead to any case of haematoma, confirming an earlier unpublished study of 50 consecutive patients who underwent classical hospital procedure without drainage. Only one patient had a subcutaneous haematoma that resolve favourably spontaneously. These results suggest that satisfactory patient comfort can be achieved postoperatively for outpatient procedures. We have decided to pursue this approach.

Purpose: Disposable medical devices have several advantages and are widely used. But since the financial burden of disposable devices is however significant for the hospital budget, it would be interesting to reassess multiple use devices in terms of efficacy and safety. The purpose of this study was to determine the safety aspects involved and to assess wear observed in new versions of autoclavable shavers and drill bits used in arthroscopic surgery.

Material and methods: After standard preparation and ten sterilisation cycles, fifteen instruments (shavers and drill bits) were used 10 times each during arthroscopic procedures performed on non-embalmed cadavers. The instruments were used on tissues, cartilage or tendons (shavers) or cancellous bone (drill bits). Duration of use was at least 10 min for each instrument. The instruments underwent standard preparation (decontamination-cleaning-immersion in 1N caustic solution) followed by sterilisation at 134°C for 20 minutes as defined by the regulatory decree (n° 138, 14 March 2001). A tracability sheet was completed at each order for sterilisation. The first phase consisted in an evaluation of the instrument’s resistance to sterilisation treatments, in particular the non-alteration of the cutting surface examined under optical magnification. The second phase was to determine the feasibility and performance level of the cleaning step based on assay of protein residue with UV spectrophotometry as described by Bradford.

Results: One hundred fifty complete cycles were performed. The results of the first phase demonstrated satisfactory instrument resistance to 10 uses with traces of erosion visible on 20% of the instruments after the 5th use. Two instruments were replaced during the study due to mechanical wear. The second phase revealed positive results in 2% of the cases (residual proteins > 8 μg/ml), the positivity threshold defined by the Pr EN ISO 15883-1 normalisation project concerning general requirements for desinfecting cleaners. Analysis of these results demonstrated that 12% of the instruments cleaned with ultrasounds carried traces of protein residues. There was no trace of proteins on instruments cleaned with a washing machine operating on the “endoscope” cycle, i.e. 143 successive cycles.

Discussion: Despite the difficulty in cleaning (double sheath), shavers and drill bits used in arthroscopic surgery can be reused without risk since the traces of residual protein are negligible when the instruments are cleaned with a endoscope-quality desinfecting washing machine. In addition, despite intensive use, wear is acceptable for ten cycles. Extensive use of disposable instruments should be carefully debated due to the financial consequences.

Purpose: Study experimental instability by ligament section leaving intact all the periarticular elements.

Material and methods: Sixteen fresh cadaver shoulders were studied. Dissection was achieved via an axillary approach isolating the ligaments without muscle section. Instability was classified in five stages: 0) stable, 1) drawer and sulcus, 2) subluxation: the head crossed the glenoid border but remained in the plane of the glenoid, 3) reversible dislocation: the head was dislocated by returned spontaneously into place when the arm was left to hang along the body, 4) permanent dislocation. The ligaments were sectioned in the following order: 1) betrween 7h and 5h, 2) between 5h and 2h, 3) between 1h and 11h. Instability was tested with usual manœuvres: drawer, sulcus, hyperabduction test, provoked dislocation in elevation and maximal external rotation, downward pressure in the axis of the humerus.

Results: Dissection of the ligaments produced class 1 instability in 0% of the shoulders, Section between 7h and 5h (anterior part of the inferior glenohumeral ligament) yielded class 2 instability in 12 cases, and class 3 instability in six. The hyperabduction test was positive in all shoulders. Section between 5h and 3h (middle glenohumeral ligament) produced class 3 instability in all the shoulders but never permanent dislocation. To obtain class 4 instabilty, section between 1h and 11h (superior glenohumeral ligament) was required. Section of the cuff was not necessary to obtain permanent dislocation.

Discussion: The role of the superior glenohumeral ligament in the production of shoulder instability has not been detailed to date. Closure of the rotator interval, proposed by Nobuhar and by Field, corresponds to retightening this ligament. The function of the superior glenohumeral ligament should be taken into account during the treatment of shoulder instability.

Purpose: Surgery is required for primary tumours invading the sacroiliac joint. The purpose of the present work was to analyse results obtained with surgical treatment in order to better ascertain indications.

Material and methods: Forty patients (24 men and 16 women), mean age 24 years (range 12–56) underwent surgery for high-grade sarcoma (n=30, osteosarcoma 12, Ewing 13, chondrosarcoma five) or more differentiated tumours (n=10, low-grade S chondrosarcoma five, fibro-sarcoma two, others three). Resection was achieved in 37 cases via two approaches and via a lateral approach in three. Resection involved vertical sacrectomy either via the homolateral foramen (n=27) or via the midline (n=10). Reconstruction consisted in stabilising the iliosa-cral assembly generally associated with vertebral osteo-synthesis, an autologous graft in 36 cases, cement in one, and an allograft in three. Functional outcome was assessed with the MSTS (Enneking).

Results: There were three infections (all three with extensive lateral approach) and five cases of postoperative lumbosacral trunk palsy. Late complications were three cases of spondylolisthesis and eight nonunions. Twenty patients died (eight local recurrences, ten metastases, one chemotherapy toxicity, one undetermined cause). Sixteen patients achieved complete remission at six years (follow-up 2–16 years) and four patients were lost to follow-up. Functional outcome was very good in eight, good in ten, fair in twelve, and poor in ten. Survival was 40% among patients with malignant tumours (38 patients) but only 20% for those with osteosarcomas.

Discussion: Technical improvements (combined approach rather than wide lateral approach and omentum flap) have allowed a reduction of cutaneous and infectious complications. Mechanical complications can be prevented by systematic lumbosacral fusion on the side opposite the resection reconstruction. This provides good functional results despite sacrificing a hemi-sacral plexus if the lumbo-sacral trunk is preserved. Reconstruction after extension of the resection to the acetabulum raises an unresolved problem and yields mediocre results. The quality of the surgical resection is determinant since risk of local recurrence is 8/100 after a contaminated resection edge.

Conclusion: Surgical resection of sacroiliac tumours is a source of numerous complications despite real technical improvements. This approach can be proposed if carcinological resection can be reasonably achieved. Local control is very poor in case of large osteo-osteogenic sarcomas.