Can the Surgical Approach to Total Knee Arthroplasty Influence Early Postoperative Outcomes? - A Comparative Study between Trivector and Medial Parapatellar Approaches.

Background: Trivector approach to total knee arthroplasty (TKA) is a quadriceps tendon sparing approach, whereas the medial parapatellar (MPP) approach involves making a longitudinal incision in quadriceps tendon. We postulated that quadriceps-sparing approach such as trivector should make postoperative rehabilitation easier and ultimately reduce the length of hospital stay.

Objectives: The aim of the study is to compare the early postoperative outcomes of the TKA performed through the trivector and the MPP approaches.

Dural tears in primary decompressive lumbar surgery. Is primary repair necessary for a good outcome?

Study Design: Case control series with prospective data collection.

Objective: To establish whether incidental durotomy treated without primary suture repair adversely affects the outcome following lumbar surgery in the longer term.

Method: Outcome scores from a prospective database were used for an audit of dural tears in primary lumbar decompressive surgery.

Total knee arthroplasty in patients with excessive external tibial torsion >45° and patella instability--surgical technique and follow up.

Patients presenting with advanced knee osteoarthritis (OA), excessive external tibial torsion (EETT) and chronic patella subluxation pose significant surgical challenges. A combination of TKA, tibial derotation osteotomy, and tibial tuberosity transfer was performed in ten patients (twelve knees) with OA secondary to EETT and patellar instability. Six weeks of non weight-bearing and flexion limited to 45° was mandated after surgery.

Comparison of cement pressurisation in flanged and unflanged acetabular cups.

Background: This biomechanical study examined difference in cement pressures generated by flanged and unflanged acetabular cups in hip arthroplasty.

Method: Using a model acetabulum, cement was inserted and pressurised followed by cup insertion and pressurisation. Pressures were recorded using transducers in the acetabulum.

The risk of avascular necrosis following chevron osteotomy: a prospective study using bone scintigraphy.

Controversy exists with regard to the effects of chevron osteotomy on blood supply and subsequent development of avascular necrosis (AVN) of the first metatarsal head. The aim of this study was to assess the incidence of avascular necrosis in our centre following chevron osteotomy for hallux valgus, using bone scintigraphy. Thirty nine patients who had a chevron osteotomy for treatment of hallux valgus were prospectively studied.

Survivorship analysis at 15 years of cemented press-fit condylar total knee arthroplasty.

We performed a survival analysis on 354 cemented primary press-fit condylar total knee arthroplasties in 277 patients with prospective follow-up (mean, 8.8 years; range, 0.3-16.

Perioperative changes in the microcirculation in feet after foot and ankle surgery.

The senior author (N.P.G.