BACKGROUND Rupture of the Achilles tendon often leads to long-term morbidity, particularly calf weakness associated with tendon elongation. Operative repair of Achilles tendon ruptures leads to reduced tendon elongation. Tendon lengthening is a key problem in the restoration of function following Achilles tendon rupture. A study was performed to determine differences in initial separation, stre...

A reliability system submitted to external and internal failures, that can be repairable or non-repairable, with degradation levels, and with sojourn times phase-type distributed, is considered. Repair is not as good as new, and the repair of internal failure follows policy N, that is, after N completed repairs the system is replaced by a new one to the following failure, repairable or not. For...

We conducted a study to compare the clinical results and operative times of knotted and knotless fixation of anterior and posterior glenohumeral labral repairs and superior labrum anterior to posterior (SLAP) repairs. We retrospectively evaluated data that had been prospectively collected from a Surgical Outcomes System database. Knotted and knotless techniques for 226 repairs (59 isolated ante...

The outcome of 260 repairs of the radial and posterior interosseous nerves, graded by Seddon's modification of the Medical Research Council Special Committee's system, was analysed according to four patterns of injury; open 'tidy', open 'untidy', closed traction, and those associated with injury to the axillary or brachial artery. We studied the effect on the outcome of delay in effecting repai...

OBJECTIVES This study compared the biomechanical fatigue strength of calcium phosphate augmented repairs versus autogenous bone graft (ABG) repairs in lateral tibia plateau fractures. METHODS Eight matched pairs of tibias (six male, two female; age, 75 ± 14 years) were harvested from fresh-frozen cadavers. Reproducible split-depression fractures were simulated and repaired by an orthopaedic t...