Empirical research on world cities often draws on Taylor’s (2001) notion of an ‘interlocking network model’, in which office networks of globalized service firms are assumed to shape the spatialities of urban networks. In spite of its many merits, this approach is limited because the resultant adjacency matrices are not really fit for network-analytic calculations. We therefore propose a fresh ...

There is a perception that distal freehand interlocking (DFHI) of intramedullary nails can be difficult and time consuming. This study consists of a survey of surgeons' practices for DFHI screws and their reasons for not using this technique. A survey was sent to 1400 orthopaedic surgeons who were asked to agree or disagree with statements regarding the difficulty and indications for the usage ...

Severe open fractures of the tibia have a high incidence of complications and a poor outcome. The most usual method of stabilisation is by external fixation, but the advent of small diameter locking intramedullary nails has introduced a new option. We report the early results of a randomised, prospective study comparing external fixation with non-reamed locked nails in grade-IIIb open tibial fr...

Introduction Lack of primary stability has been regarded as a major cause for implant loosening in total hip arthroplasty. For a cementless press-fit acetabular cup, primary stability is achieved by inserting an oversized component into an under-reamed acetabulum. Two features that result from the press-fitting process are – 1) pre-stress due to the difference in the radii of the cup and the re...

We report the use of Grosse-Kempf reamed intramedullary nailing in the treatment of 41 Gustilo type II and III open tibial fractures. The union times and infection rates were similar to those previously reported for similar fractures treated by external skeletal fixation, but the incidence of malunion was less and fewer required bone grafting. The role of exchange nailing is discussed and a tre...

BACKGROUND Prediction of negative postoperative outcomes after long-bone fracture treatment may help to optimize patient care. We recently completed the Study to Prospectively Evaluate Reamed Intramedullary Nails in Patients with Tibial Fractures (SPRINT), a large, multicenter trial of reamed and unreamed intramedullary nailing of tibial shaft fractures in 1226 patients. Using the SPRINT data, ...

In order to simulate the process of homology searching and interlocking of chromosomes in meiotic pairing, a cellular automaton model is introduced. The model reflects both the spatial as well as the temporal behavior of chromosomes in the meiotic cell nucleus. Moreover, we compare the outcome of our simulations to results obtained by a stochastic model describing interlocking probabilities ana...

Objective: The purpose of this research is to evaluate the efficacy closed versus open interlocking nails in treating femur shaft fractures. Study Design: Retrospective cohort study Place and Duration: This was conducted at MTI Lady Reading Hospital Peshawar Khyber Teaching duration from 1st March, 2022 31 August, 2022. Methods: involved 108 cases with age 20-72-year had femoral fracture were i...

In the last 10 years, traumatologists have become more aware of the importance of blood supply to fracture fragments for both the healing of fractures and prevention of infection. Due to our experience with fractures having severely disrupted periosteal blood supply, we are looking more critically at intramedullary reamed nailing as a treatment option. This research was a result of our increase...

Stålmarck’s proof procedure is a method of tautology checking that has been used to verify railway interlocking software. Recently, it has been proposed [SS98] that the method has potential to increase the capacity of formal verification tools for hardware. In this paper, we examine this potential in light of an experiment in the opposite direction: the application of symbolic model checking to...