Our aim was to analyse the effect of avascularity on the morphology and mechanical properties (tensile strength, viscoelasticity) of human bone-patellar-tendon-bone (BPTB) grafts in vitro. These were harvested at postmortem and stored submerged in denaturated human plasma at a constant pH, pO2, pCO2, temperature and humidity under sterile conditions. Mechanical testing was performed two and fou...

BACKGROUND The comparative data in the literature regarding rates of reoperation, revision ligament surgery, and contralateral surgery following anterior cruciate ligament reconstruction (ACLR) are variable and are often derived from studies with multiple surgeons, multiple centers, different surgical techniques, and a wide variety of graft choices. PURPOSE To describe and analyze a single su...

BACKGROUND Bio-enhanced ACL repair, where the suture repair is supplemented with a biological scaffold, is a promising novel technique to stimulate healing after ACL rupture. However, the histological properties of a successfully healing ACL and how they relate to the mechanical properties have not been fully described. HYPOTHESIS/PURPOSE The purpose of the study was to determine which histol...

PURPOSE This study aimed to determine practice patterns for National Football League (NFL) and National Collegiate Athletic Association (NCAA) Division I football team orthopaedic surgeons regarding management of anterior cruciate ligament (ACL) tears in elite, young, and middle-aged recreational athletes. METHODS Two hundred sixty-seven NFL and NCAA Division I team orthopaedic surgeons were ...

BACKGROUND When to allow an athlete to return to unrestricted sporting activity after anterior cruciate ligament (ACL) reconstruction remains controversial. PURPOSE To report the results of functional performance testing reported in the literature for individuals at differing time points following ACL reconstruction and to examine differences between graft types. STUDY DESIGN Systematic rev...

BACKGROUND Among the various complications described in literature, the patellar tendon ossification is an uncommon occurrence in anterior cruciate ligament (ACL) reconstruction using bone - patellar tendon - bone graft (BPTB). The heterotopic ossification is linked to knee traumatism, intramedullary nailing of the tibia and after partial patellectomy, but only two cases of this event linked to...

PURPOSE The purpose of our study was to investigate the functional outcome after anterior cruciate ligament (ACL) reconstruction using bone-patellar tendon-bone (BPTB) and quadrupled semitendinosus and gracilis tendon (ST/G) autografts by evaluating stride-to-stride variability. METHODS Six patients with BPTB and 6 patients with STG ACL reconstruction, 2 years postoperatively, and 6 healthy c...

BACKGROUND Bone block length for bone-patellar tendon-bone (BPTB) anterior cruciate ligament (ACL) reconstruction has traditionally been 25 mm in length. The previous surgical technique did not require the surgeon to pay particular attention to the length of the bone block, and therefore, there is scant evidence in the literature describing ideal lengths. With the gaining popularity of accessor...

OBJECTIVE To investigate in vivo if the increased tibial rotation found in anterior cruciate ligament (ACL)-deficient patients before surgery is restored 2 years after the reconstruction, during 2 high-demanding activities. DESIGN Prospective follow-up study. SETTING A gait analysis laboratory. PARTICIPANTS Nine subjects with unilateral ACL rupture, reconstructed with a bone-patellar tend...