Linea Aspera as Rotational Landmark for Tumor Endopostheses: A Computed Tomography Study.

This computed tomography study examined the reliability of the linea aspera as a rotational landmark in tumor endoprosthetic replacement by determining its cross-sectional location on the femur.

Functional outcomes after limb-salvage surgery and endoprosthetic reconstruction with an expandable prosthesis: a report of 4 cases.

Objective: To determine the functional outcomes of skeletally immature patients after replacement of the femur and tibia performed by using noninvasive expandable endoprostheses.

Design: Case series.

Setting: A hospital-based ambulatory care center.

IVC filters may prevent fatal pulmonary embolism in musculoskeletal tumor surgery.

Unlabelled: To determine whether inferior vena cava (IVC) filter placement protects patients with musculoskeletal tumors from fatal pulmonary embolisms (PE), we retrospectively analyzed the records of 81 patients who underwent surgery for pelvic and lower extremity malignancies. All 81 patients received an IVC filter and mechanical compression for deep venous thrombosis (DVT) prophylaxis, but no pharmacologic anticoagulation. Duplex imaging was performed before hospital discharge and when clinical suspicion of DVT arose.

Effects of a new allograft processing procedure on graft healing in a canine model: a preliminary study.

Graft healing in vivo can be affected by allograft processing. We asked whether a new processing technique influenced graft-host healing compared with autograft and a standard processing technique in a canine ulna model. We used bilateral intercalary allografts or autografts in the ulna of 13 skeletally mature male coonhounds.

Case report: elevated serum beta human chorionic gonadotropin in a woman with osteosarcoma.

Human chorionic gonadotropin is a glycoprotein hormone normally synthesized by placental syncytiotrophoblast cells. It also is secreted by gestational trophoblastic tumors, gonadal tumors, and even various nongonadal tumors, including bone and soft tissue sarcomas, as a paraneoplastic syndrome. The literature contains one case report of beta human chorionic gonadotropin production from a primary bone sarcoma occurring in a male patient.

The incidence of motocross injuries: a 12-year investigation.

Off-road motorcycling is one of the most popular sports activities practiced by millions of people in the world but little has been written on motocross traumatology and its prevention. This paper aims to evaluate motocross injuries in terms of injury ratio, location, causes, and possible prevention in a series of competitions organized by Motorcyclistic Federations over a 12-year period. We retrospectively evaluated 1,500 accidents with 1,870 rider injuries out of a group of 15,870 athletes participating in European off-road competition from 1980 to 1991.

Quadrupled bone-semitendinosus anterior cruciate ligament reconstruction: a clinical investigation in a group of athletes.

Purpose: The hypothesis of our study was that a quadrupled bone-semitendinosus (STB) graft could provide a clinically stable construct, allow recovery of normal limb strength, give high patient satisfaction with early return to active sports, and involve low donor-site morbidity.

Type Of Study: Outcomes study.

Methods: Anterior cruciate ligament (ACL) reconstruction with an STB graft was performed on 80 athletes with isolated ACL injury from January 1996 to December 1999.

Patellar tendon versus quadrupled bone-semitendinosus anterior cruciate ligament reconstruction: a prospective clinical investigation in athletes.

Purpose: Patellar tendon and hamstrings are both used in anterior cruciate ligament (ACL) reconstruction, and comparisons have been reported with different results. The purpose of this clinical study was to compare the results of ACL reconstruction in athletes with 2 different graft types, both using bone-to-bone healing: bone-patellar tendon-bone graft and a quadrupled bone-semitendinosus graft.

Type Of Study: Outcomes study.

Hamstring graft tibial fixation: biomechanical properties of different linkage systems.

This biomechanical study analyzed the mechanical properties of different linkage systems commonly used in hamstring tendon ACL reconstruction. Two kinds of tapes, 5-mm braided polyester (Mersilene) and 3-mm woven polyester (Orthotape), were connected to a particular staple in bovine bone sections in single- and double-loop constructs with five replicates of each. These constructs underwent straight pull tensile tests, residual tensile tests, and fatigue tests at a loading regime of 540,000 cycles at 25 Hz frequency, using an Instron tensile test machine.

Patellar tendon anterior cruciate ligament reconstruction with conical press-fit femoral fixation: 5-year results in athletes population.

Bone-patellar tendon autograft is probably the most widely used graft for ACL reconstruction. Several methods for graft fixation have been described. To avoid intra-articular hardware we adopt biological fixation with a femoral conical press-fit fixation.