Cryopreserved patellar tendon allografts are often recommended for reconstruction of anterior cruciate ligaments (ACLs) because living donor fibroblasts are thought to promote repair. Animal studies, however, indicate that ligaments regenerate from recipient rather than donor cells. If applicable to man, these observations suggest that allograft cell viability is unimportant. We therefore used ...

PURPOSE To evaluate the stages of patellar tendon graft remodelling using magnetic resonance imaging (MRI) after anterior cruciate ligament (ACL) reconstruction with or without platelet-rich plasma (PRP) injection. METHODS 98 patients aged 18 to 65 years with complete rupture of the ACL were randomised to undergo reconstruction with the autologous patellar tendon grafts with or without PRP in...

OBJECTIVE To evaluate the prevalence and type of dysesthesia around the incision used to obtain the patellar tendon for anterior cruciate ligament (ACL) reconstruction surgery. METHODS Out of a population of 1368 ACL reconstructions using the central third of the patellar tendon, 102 patients (111 knees) were evaluated by means of telephone interview. RESULTS The mean follow-up was 52 month...

The moment arm (MA) of the knee extensor mechanism has been reported by a number of researchers, although it has been defined and measured differently in these studies. The aims of this study were: (1) to quantify the MA of the knee-extensor mechanism, which is represented by the MA of the patellar tendon at the knee; and (2) to show that the MA of the patellar tendon is related to the size of ...

Patellar tendon rupture is an uncommon clinical presentation, which generally affects the under 40s who are active in sport. Bilateral rupture of both tendons is much rarer. It occurs most frequently in patients with predisposing factors such as corticosteroid use or systemic diseases. The authors present the case of a 56-year-old male on long-term statin therapy who sustained this injury follo...

Tendon injuries account for a substantial proportion of overuse injuries in sports. Despite the morbidity associated with patellar tendinopathy in athletes, management is far from scientifically based. After highlighting some aspects of clinically relevant basic science, we aim to (a) review studies of patellar tendon pathology that explain why the condition can become chronic, (b) summarise th...

Knee dislocations are rare injuries. They represent a severe soft tissue injury following high-energy blunt trauma. We report a case of open posterior knee dislocation with rupture of the patellar tendon and a fracture of the tibial plateau. The treatment was surgical and consisted of reduction of the knee dislocation, fixation of the tibial plateau fracture by lag screws, and transosseous sutu...

A case is reported of bilateral patellar tendon rupture in a fit man after a fall. He had a history of repeated local steroid injections into both tendons and histology confirmed steroid-induced changes. The history of repeated local steroid administration has to be implicated as the cause of this extremely rare injury in this patient, which can also be associated with hyperparathyroidism, syst...

• Correspondence: O. Şahap Atik, M.D. Gazi Üniversitesi Tıp Fakültesi Ortopedi ve Travmatoloji Anabilim Dalı, 06500 Beşevler, Ankara, Turkey. Tel: +90 312 202 55 28 Fax: +90 312 212 90 08 e-mail: [email protected] We avoid routine patellar resurfacing during knee replacement because of the risk of major complications that include patellar fracture, avascular necrosis, patellar tendon injury and...

Tendons are important for optimal muscle force transfer to bone and play a key role in functional ability. Changes in tendon properties with aging could contribute to declines in physical function commonly associated with aging. We investigated the in vivo mechanical properties of the patellar tendon in 37 men and women [11 young (27 +/- 1 yr) and 26 old (65 +/- 1 yr)] using ultrasonography and...