Publications by authors named "Raymond Pollock"
Background: The influence of preoperative rotator cuff fatty infiltration (FI) and muscle atrophy (MA) on the postoperative outcome of total shoulder arthroplasty (TSA) has only rarely been investigated and reported in the literature. We hypothesized that more FI and MA would be associated with a worse postoperative functional outcome.
Methods: This prospective cohort study included 63 patients (31 female and 32 male patients; mean age, 71 years [range, 53-89 years; standard deviation, 7 years]) with primary osteoarthritis of the shoulder operated on with anatomic stemless TSA.
Background: Traditionally severe hallux rigidus is treated with arthrodesis. Recently arthroplasty has been used in order to retain motion at the metatarsophalangeal joint.
Aim: To assess the early to mid-term functional and radiological outcomes in patients undergoing first metatarsophalangeal arthroplasty using the Rotoglide implant.
Background: Translation and shortening of Scarf osteotomy allows correction of severe hallux valgus deformity. Shortening may result in transfer metatarsalgia.
Aim: To evaluate outcome of patients undergoing shortening Scarf osteotomy for severe hallux valgus deformities.
Background Context: Although pain is generally regarded as originating in the lumbar spine, it has been estimated that in 15-30 % of patients, LBP originates from the sacroiliac joint (SIJ).
Purpose: To determine whether sacroiliac joint fusion (SIJF) for LBP is effective in reducing pain when the SIJ is known to be the pain generator.
Study Design/setting: Systematic review and meta-analysis.
Purpose: To estimate the prevalence of insomnia in patients with chronic back pain, and to correlate insomnia with severity of back pain and disability.
Methods: 63 women and 57 men aged 24 to 83 (mean, 55) years who presented with chronic back pain for >6 months were asked to complete a self-administered questionnaire to evaluate the Insomnia Severity Index (ISI), Oswestry Disability Index (ODI), and Numerical Rating Scale (NRS) for back pain.
Results: Of the 120 patients, 25 had no insomnia, 39 had sub-threshold insomnia, and 56 had clinically significant insomnia.
Study Design: Prospective longitudinal study.
Purpose: To determine if preoperative psychological status affects outcome in spinal surgery.
Overview Of Literature: Low back pain is known to have a psychosomatic component.
A tourniquet is often used in total knee arthroplasty resulting in improved visualization of structures, reduced intraoperative bleeding and better cementation. The risks include deep vein thrombosis and pulmonary embolism. To quantify the case for or against tourniquet use, we carried out a systematic review and meta-analysis of selected randomized controlled trials.
View Article and Find Full Text PDFPurpose: Proponents of a mid-vastus (MV) approach for primary total knee arthroplasties (TKA) stress its importance in preserving function of the extensor mechanism with earlier rehabilitation and decreased prevalence of lateral release. We conducted a meta-analysis of randomised and quasi-randomised controlled trials to compare functional outcomes of the standard medial parapatellar (PP) and mid-vastus (MV) approaches in primary knee arthroplasties.
Methods: The study was conducted according to the guidelines described in the Cochrane Handbook for Systematic Reviews of Interventions.
Background: The aetiology of type 1 diabetes in children is uncertain. A number of recent studies have suggested an infectious aetiology. It has been postulated that an infectious agent may be involved.
View Article and Find Full Text PDFUnlabelled: Although bioabsorbable pins have been used to successfully stabilize a wide range of osteotomies, to date there have been not published studies describing the results of their use for fixation of first metatarsal osteotomies in Mitchell's bunionectomy. The purpose of this retrospective investigation of 78 first metatarsal osteotomies was to evaluate the effectiveness of polydioxanone bioabsorbable pin fixation of the first metatarsal osteotomy in Mitchell's bunionectomy. The mean length of the first metatarsal preoperatively was 6.
View Article and Find Full Text PDFWe have studied the occurrence of donor site morbidity, cosmesis and overall satisfaction with graft procedure in 76 patients who had undergone iliac crest bone harvesting for anterior cervical discectomy and fusion (ACDF). Totally 24 patients underwent an open procedure and 52 a minimally invasive trephine harvesting method. Although our study demonstrated substantial donor site pain and its effect on ambulation in both groups, this was of limited duration.
View Article and Find Full Text PDFBackground Context: Neurological symptoms are a well-recognized complication after posterior lumbar interbody fusion (PLIF) surgery. Concerns about this potential problem may deter surgeons from performing the procedure.
Purpose: To determine the incidence, etiology, prevention, and management of neuralgia after PLIF surgery.
Study Design: Prospective case series.
Objectives: To determine the safety and feasibility of routine preinjection of gelfoam embolization during percutaneous vertebroplasty.
Summary Of Background Data: Percutaneous vertebroplasty has been used effectively in pain relief for vertebral fractures resulting from malignancy and osteoporosis.