Reasons For Failure Of Surgery Research Articles

Lateral Augmentation of the Maxilla and Mandible Using Framework Technique With Allogeneic Bone Grafts

This study aimed to evaluate the effectiveness of lateral ridge augmentation in 36 patients with severely atrophic alveolar ridge using allogeneic bone grafts in a framework technique. A thinned allogeneic cortical graft was screwed to the alveolar ridge, leaving a hollow space that was filled with particulated allogeneic cortical bone. Thirty-six patients who received surgical lateral block augmentation using allogeneic bone grafts were involved in this study. Implants were placed in a second session after a mean time of 6.3 months. The surgical technique and the reasons for failure of surgery in three patients are described. Additionally, properties of allogeneic bone grafts are reviewed. In 33 patients, dental implants were successfully installed and continued to be well maintained at the last follow-up (91.7% success). In three patients, dental implants could not be installed (8.3% failure) as the graft was lost because of wound dehiscence; however, repeat surgery was successfully carried out in all three. The use of allogeneic bone grafts in lateral ridge augmentation of the maxilla and mandible showed successful clinical results. It seems to be a reliable material for reconstructing a severely atrophic alveolar ridge. It presents a good alternative to autogenous bone regarding augmentation because it offers good ossification, less morbidity, unlimited availability and shorter duration of surgery, and lower costs.

Retinal Detachment In Changi General Hospital: A Retrospective Study From 1997-2004

This is a retrospective audit on retinal detachment cases seen in Changi General Hospital, Singapore. Main outcomes included anatomical reattachment after primary procedures without further intervention and the final visual acuity post operatively. The type of procedures, reasons for failure of surgery and post operative complications are also documented.

Orbito-frontal epilepsy masquerading as temporal lobe epilepsy—a case report

Temporal lobectomy fails to control seizures in a considerable percentage of patients who do not have hippocampal sclerosis. One theoretical reason for failure of surgery is that some of these patients may in fact have extratemporal epilepsy. We present a 28-year-old woman with clinical and scalp electroencephalogram (EEG) evidence of right temporal lobe epilepsy (TLE) supported by functional imaging with interictal positron emission tomography (PET) and ictal single-photon emission computerized tomography (SPECT). An invasive EEG monitoring was prompted by the discovery of a small right orbito-frontal lesion on MRI. Monitoring documented seizure onset at the lesion, with rapid right temporal involvement. The patient was almost seizure-free after a lesionectomy. The index of suspicion of orbito-frontal epilepsy should be high in patients with apparent TLE when the scalp EEG and neuroimaging data are not congruent, or if temporal lobe pathology cannot be identified on structural imaging.

Modern concepts in the Treatment of Fistula in Ano

1. Accurate diagnosis must always precede any attempt at curative treatment of fistulas, being sure to eliminate neoplastic disease. 2. A review of some of the more common reasons for failure of surgery in the cure of fistulas is discussed. 3. Sulfa or Antibiotic therapy should be used only as an aid to treatment and an adjunct to competent surgical management of fistula in ano. 4. An improved technique for skin grafting perianal wounds is outlined, using Thrombin, Topical to hold grafts in place, penicillin is added to the saline solution as a suitable bacteriostatic agent, with which to keep the grafts moist.