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Reconstruction nailing for pathological subtrochanteric fractures with coexisting femoral shaft metastases.

We describe the use of intramedullary reconstruction nails in the treatment of 14 patients with pathological subtrochanteric fractures and coexisting metastases in the femoral shaft. After nailing, all patients were free from pain and regained mobility. They were followed up clinically and radiologically until death from the primary disease. There were no mechanical failures even when a less than ideal reduction had been achieved.

Aged↗

Primary reamed intramedullary nailing of open femoral shaft fractures.

Forty-two patients with acute open femoral shaft fractures were assigned prospectively to primary immediate or delayed reamed intramedullary stabilization. There were 27 primary and 15 delayed intramedullary nailings performed (mean followup, 20 months). Twelve patients (29%) had Gustilo and Anderson Grade I injury; 16 (38%), Grade II; and 14 (33%), Grade III (including 3 Grade IIIC). Average time to union was 3.8 months. The infection and nonunion rate was 2.4%. Comparison of the 2 groups showed no significant differences in the incidence of infection, malunion, nonunion, or the time to union. The data suggest that primary reamed intramedullary nailing is an effective treatment alternative for the patient with multiple injuries, regardless of soft tissue injury, including Grade III wounds. Isolated open femoral shaft fractures with Grade I and Grade II soft tissue wounds may be stabilized safely primarily with no increased morbidity. Although results were promising, continued study is needed to delineate the optimum management of all Grade III injuries.

Adolescent↗

Technique for removal of broken interlocking screws.

Breakage of an interlocking screw is a known complication in tibial fractures treated by intramedullary nailing. This happens most often in delayed union or nonunion because of the lack of progressive load transference from the nail to the healing bone. To treat this problem, the nail and screws need to be removed. This article describes a simple technique for the removal of broken interlocking screws.

Bone Screws↗

Experimental model for allograft incorporation and allograft fracture repair.

This study describes a rat model of allograft osteotomy healing. An intercalary skeletal defect was created in adult Lewis rats by resecting a 2-cm segment of the femur in the diaphysis, including the periosteum and the cuff of muscle layers. The skeletal defects were replaced with fresh-frozen devascularized intercalary allografts from Sprague-Dawley rats. A transverse osteotomy was made in the middle of the allograft. The osteotomized segments were stabilized with an intramedullary threaded Kirschner wire, which allowed immediate ambulation. Radiographic and histological examination at 4 and 8 weeks revealed a characteristic healing process at three different interfaces. Radiographically, the distal metaphyseal host-donor junction healed faster than the proximal diaphyseal host-donor interface. The osteotomy site did not have evidence of an intramembranous or endochondral repair process. This model can serve as a baseline for assessing allograft incorporation and fracture repair.

Animals↗

Retrograde nailing of femur fractures in patients with myelopathy and who are nonambulatory.

The authors studied 10 consecutive patients with closed femoral shaft or supracondylar fractures who were nonambulatory and who were treated by reamed retrograde intramedullary nailing via an intercondylar notch approach. The study consisted of five women and five men with an average age of 60.7 years (range, 40-89 years). Six patients had spinal cord lesions, one had a brain injury, one had cerebral palsy, one had multiple sclerosis, and one had progressive myelopathy. Three fractures were supracondylar, and seven fractures involved the mid-distal diaphysis. The average time of surgery was 110 minutes (range, 70-225 minutes) with an average estimated blood loss of 288 mL (range, 150-400 mL). There were two postoperative deaths (at 15 days and 2 months, respectively) after the procedure that were attributable to pneumonia. The remaining eight patients were observed for an average of 13 months (range, 6-20 months) after surgery. All fractures healed as evaluated radiographically. Retrograde intramedullary nailing is a simple, safe, and effective alternative to nonoperative treatment for femoral shaft or supracondylar fractures in patients who are nonambulatory. Stabilization by this method allows fracture healing and rapid return of patients to their previous level of function. There were no nonunions, malunions, significant shortening, implant failure, or wound infections.

Adult↗

Failure of the spiral blade module of the AO unreamed femoral nail.

The treatment of subtrochanteric femoral fractures remains difficult despite the introduction of modern intramedullary nailing techniques. Accurate fracture reduction, correct siting of the proximal entry point and restoration of medial support remain essential for a successful outcome. We report a case of failure of the spiral blade module of the AO unreamed femoral nail, which may have been precipitated by incorrect siting of the entry point, resulting in poor implant positioning within the femoral head.

Accidental Falls↗

[Intramedullary nailing of the tibia and compartment syndrome].

The subject of this paper is the question to what extent "closed" intramedullary nailing of the tibia is injurious to the soft tissues in the sense of producing compartment syndrome. The reports on 205 patients treated by closed intramedullary nailing were evaluated. For 197 of them X-ray investigation and clinical examination were possible 1-4 years after operation. Only in 5 patients did we find a temporary compartment syndrome, and none of them needed a decompression operation. Late consequences, such as atrophy or deformity of the foot or the toes, were not observed.

Adolescent↗

Stress fracture of the fifth metatarsal.

Stress fractures of the fifth metatarsal have been reported with increasing frequency, especially in athletes. Prolonged healing time and the risk of refracture following conservative treatment have led to recommendations for operative treatment including bone grafting of these fractures. An axial intramedullary screw, inserted without opening the fracture site, was used in 10 athletes with stress fractures of the fifth metatarsal. Union was obtained in all patients in an average of 7.5 weeks. All patients returned to their sports in an average of 8.5 weeks postoperatively. There were no operative complications or refractures after screw insertion. Complaints of local pain over the screw head and/or the fifth metatarsal head, seen in 7 of the 10 patients, were relieved by local shoe modifications.

Athletic Injuries↗

Advances in the surgical management of pediatric femoral shaft fractures.

PURPOSE OF REVIEW: To provide an update on surgical methods of pediatric femur fracture treatment. RECENT FINDINGS: Multiple studies describe successful results with elastic nail stabilization of pediatric femur fractures. The indications and risk factors for complications are being more clearly defined. Trochanteric entry-locked intramedullary nailing and submuscular bridge plating have also recently been reported to produce excellent outcomes in a high percentage of patients. Older (>11 years) patients, heavier patients and patients with length-unstable fracture patterns may be best treated with locked nailing or plating. SUMMARY: Pediatric femur fractures can be successfully treated by a number of methods. This review examines the recent literature to provide some guidelines for choosing amongst the options for surgical stabilization.

Bone Nails↗

[Compression osteosyntheses with the new AO universal nail. Functional principle and biomechanical prerequisites].

The new AO universal nail, with its special construction, allows extremely stable compression osteosynthesis in correctly selected fractures. Compression osteosynthesis with an intramedullary brace has definite advantages for fracture healing and biomechanics. The basic requirement, especially for the long-term maintenance of pressure, is truly stable anchorage of the locking bolts in the bone. Previous investigations by the author have shown that this is only possible in the shaft of the bone. Anchoring stability is not sufficient in the cancellous juxta-articular bone. Five years of clinical experience fully confirm the theoretical expectations.

Biomechanical Phenomena↗

Infection after reamed intramedullary nailing of lower limb fractures. A review of 1,464 cases over 15 years.

We studied 1,464 consecutive immediately-reamed intramedullary locked nailings of tibial or femoral fractures. There was an increase in postoperative infection if the tibial fracture was open; the relative risk increased with the severity of the soft tissue lesion. There was a marginal increase in the postoperative infection rate for open femoral fractures. A comparison of these figures with those in other methods of treatment and the mechanical and clinical advantages of nailing leads us to propose this method of treatment for Grades I and II open fractures of the femur or tibia.

Bone Nails↗

[A new technique of segmental bone replacement in metastatic osteolysis in long bones].

Intercalary replacement is a valuable option in the treatment of diaphysary long bone metastases. In certain cases methylmethacrylate bone cement may be used as a cheap and readily available alternative to modular or custom-made prostheses. Stabilization is best performed by locked intramedullary nailing. By cutting open the cylindric part of a large syringe and placing it around the bone ends after resection a mould is created where liquid bone cement can be filled in. Thus spilling of liquid methacrylate into the adjacent soft tissues is prevented. After curing this results in a smooth round intercalary segment with perfect contact to the bone ends allowing early postoperative mobilization.

Aged↗

Aseptic nonunion of the tibia treated by intramedullary osteosynthesis.

The authors report 52 cases of aseptic nonunion of the tibia treated by intramedullary osteosynthesis. The means of synthesis used were the Küntscher nail, the Eiffel Tower Rush nail, and the Grosse-Kempf nail. Which means of synthesis was used depended on the site and the features of the nonunion. Healing occurred in all of the cases after an average of 5 months. Mean follow-up was 4.5 years.

Adolescent↗

Problems of operative and non-operative treatment and healing in tibial fractures.

Based on the experience of the department of pediatric surgery at the Strasbourg University Hospital, the authors present indications and limitations of various treatment techniques for tibial shaft fractures in children. Two retrospective series are reported on: one group of patients treated with the Sarmiento technique and one group of patients treated with Elastic Stable Intramedullary Nailing (ESIN or Métaizeau technique). The main problem in treatment is restoration of the mechanical axis of the tibia, especially in isolated fractures treated conservatively. Residual varus deformity is frequent, although it is usually within an acceptable range. ESIN has given better results than conservative treatment in this specific case, but valgus malunion shave been noticed when both bones were fractured, due to insufficient bending of the medial nail. ESIN is perfectly suited for treating polytrauma patients,especially those with multi level or open fractures (Gustilo 1 or 2), as it makes monitoring and nursing easier. Treatment of tibia fractures in children remains principally conservative. ESIN is indicated in cases of failure of conservative treatment, especially in isolated tibia fractures or polytrauma patients. For high grade open fractures (Gustilo 3)or extended comminuted fractures, external fixation remains the gold standard.

Adolescent↗

[The mechanical properties of callus in fractures treated by nailing or plating: an experimental study (author's transl)].

Twelve sheep were used in an experimental study on bone healing. The first metatarsal was fractured and fixed either by plating without compression or by intramedullary nailing. Three months later, the animals were sacrificed, the fractured bone removed and the mechanical properties of the callus were assessed by resistance to rupture, tangential strain measurement, the energy required for rupture, module of elasticity and the moment of inertia. It was concluded that callus was superior quantitatively as well as qualitatively after nailing. The mechanical properties of the callus wwere related to its degree of mineralisation.

Animals↗

[Distal tibial fracture--an indication for osteosynthesis with the unreamed intramedullary nail?].

In a prospective study, 50 fractures of the distal fifth of the tibia with additional involvement of the ankle joint in 18 patients were stabilized by unreamed nailing. In all, 90% of all fractures healed uneventfully without further surgical intervention after unreamed nailing, the highest ratio of complications (22%) being seen in all patients with distal fractures of the fibula without additional plating (of the fibula). Tibial fractures close to the ankle joint can be managed by unreamed nailing; distal fractures of the fibula should be additionally stabilized by fibular plating.

Adult↗

The CLOS MB intramedullary nail for the treatment of pathological femoral shaft lesions.

Advances in systemic and radiation therapy have led to considerable improvement in the prognosis of patients with metastatic disease. As a result, orthopedic surgeons are being asked with increasing frequency to evaluate and treat the manifestations of skeletal metastases. Intramedullary nailing is a valuable technique for stabilizing (impending) pathological femoral fractures or osteolytic lesions. From January 1999 to January 2001 we treated 5 patients for skeletal metastases in the diaphyseal region of the femur. One month after surgical stabilization of the pathological lesion involving the femur, we observed significant improvement in quality of life, including pain relief and early ambulation.

Aged↗

[Pneumatic tourniquet as a repositioning aid in closed intramedullary nailing].

The use of an extrawide pneumatic tourniquet as a reduction aid for closed intramedullary nailing is described, even in combination with the distractor. The principle is similar to that applied in fracture bracing as described by Sarmiento: the reduction of the fragments is achieved by ligamentotaxis (traction on the limb) combined with gentle concentric soft tissue compression exerted by the inflated tourniquet. We have applied the simple, non-invasive technique in over 30 fractures with good results. Implementation of the method with an unreamed tibia nail (utn) is described as an example.

Adult↗