Non-invasive navigation in total knee arthroplasty : a validation study.

The purpose of this study was to evaluate intraope- rative alignment during total knee arthroplasty using a handheld navigation system, iAssist, in comparison with conventional optical surgical navigation. Sixty-two consecutive patients were enrolled in this prospective study. iAssist was used to determine implant component positioning.

Locking plates versus retrograde intramedullary nails in the treatment of periprosthetic supracondylar knee fractures. A retrospective multicenter comparative study.

Introduction: Biomechanical studies demonstrated the superiority of retrograde supracondylar intramedullary nails (RIN) against locking plates (LP) for the treatment of periprosthetic supracondylar femoral fractures (PSFs); however, clinical results are still conflicting. This study aimed to compare LP and RIN, as well as, cemented and uncemented nails in the treatment of PSFs regarding fracture healing, complications and functional results.

Materials And Methods: A retrospective multicenter analysis of 60 PSFs classified as Rorabeck type I or II was performed.

Management of greater trochanteric pain syndrome : a systematic review.

Greater trochanteric pain syndrome is characterized by pain at or around the greater trochanter. Numerous management modalities have been proposed, with varying success. Cochrane and Pubmed database have been searched from 1990 for studies focusing on the management of this syndrome.

Reliability of patient specific instrumentation in total knee arthroplasty.

The aim of this study was to compare the precision between Patient Specific Instrumentation (PSI) and Conventional Instrumentation (CI) as determined intra-operatively by a pinless navigation system. Eighty patients were included in this prospective comparative study and they were divided into two homogeneous groups. We defined an original score from 6 to 30 points to evaluate the accuracy of the position of the cutting guides.

Computer-assisted total knee arthroplasty: comparative results in a preliminary series of 72 cases.

The aim of this study was to assess the value of navigation in achieving correct positioning of the implants and soft-tissue balance in total knee arthroplasty. We compared the axis alignment achieved in 72 LCS TKA's performed with navigation assistance to a historical cohort of 62 LCS TKA's implanted with the conventional instrumentation. The position of the tibial and femoral implants and the post-operative mechanical axes of the lower limbs were compared in the two series: there was a highly significant improvement in the alignment accuracy in the navigated series (p < 0.