Objective To investigate the clinical typing and their relevant surgical treatment principle and method of pressure sore. Methods From January 1983 to April 2006, 122 patients with 179 pressure sores were treated. There were 93 males and29 females, aging 1568 years. The pressure sores were located at sacrococcygeus (54 lesions), petrochanteric region (37 lesions), ischial tuberosity (30 lesions), heel (17 lesions), olecranon (15 lesions), scapula (9 lesions), lateral malleolar (7 lesions), caput fibulace (4 lesions), pretibial (3 lesions), and lumbar region (3 lesims)respectivly. The disease course was from 2 months to 11 years. The areas of pressure sores were from 1.5 cm× 1.0 cm to 20.0 cm×18.0 cm. According to the wound characteristics, the pressure sores were divided into three types：sinus type（12/179）, ulcer type （74/179） and mixed type（93/179）.Aimed at different types of pressure sore, skin grafting, skin flap and myocutaneous flap were employed to repair wound. The areas of flaps were from 5.0 cm×3.5 cm to 26.0 cm×14.5 cm. The areas of skin grafting were from 7 cm×5 cm to 23 cm×12 cm. Results All wounds of sinus type healed by firstintention except one; and all flaps survived. All wounds of uler type healed byfirst intention; and the flaps survived completely except two which had a partial necrosis. All flaps which harvested to repair 93 pressure sores of mixed typewere survived. But one or two sinus occurred in 8 cases. Two healed by operation, and the others healed by dressing exchange. The wounds healed by first intention. The donor sites healed by first intention. The routine followup in 73 patients after 6 months showed that the recurrence appeared in 4 mixed type. The recurrence rate was 55% and the other patients had good outcome. Conclusion Clinical typing of pressure sore is helpful to select the suitable operation method and improve the rate of success.
Objective To investigate the current status of randomized controlled trials (RCTs) and clinical controlled trials (CCTs) on pressure sore in China. Methods We searched Chinese Journal of Nursing, Chinese Journal of Practical Nursing and Journal of Nurses Training in CNKI and VIP (January 2000 to December 2005) for Chinese articles on pressure sore, using "pressure sore", "bed sore", "nursing", "treatment", "prevention", "evaluation" and "management" as search terms. The retrieved articles were summarized. Results We identified 16 reports (10 RCTs and 6 CCTs). The studies were judged to be of low quality.There was one study on the evaluation, two on the prevention, and 13 on the treatment of pressure sores. Conclusion The current studies on pressure sore in China are focusing on treatment. Randomized controlled trials of large sample size of pressure sore are needed to improve nursing quality.
ObjectiveTo sum up the clinical characteristics,surgical management,and effectiveness of pressure sore of sinus type. MethodsBetween January 2009 and April 2013,17 patients with 19 pressure sores of sinus type after traumatic paraplegia were treated,and the clinical data were analyzed retrospectively.There were 11 males and 6 females with an average age of 27.4 years (range,17-49 years).The median disease duration was 1.5 years (range,6 months to 7 years).Of 17 cases,there were 14 primary cases and 3 recurrent cases; 10 focuses of 8 cases were classified as simple sinus type,and 9 focuses of 9 cases as complex sinus type,which had a false synovial sheath complicated with one to four "second sinus".The pressure sore of sinus type majorly located at the ischial tuberosity.The size of pressure sore ranged from 1.5 cm×1.0 cm to 3.0 cm×2.0 cm,and the length of "second sinus" ranged from 8 to 32 cm with an average of 17 cm.After the false synovial sheath was totally excised,the wound was repaired by local sliding or rhombus flaps at the first or second stage in patients with simple sinus type pressure sore.On the basis of excising the false synovial sheath,the "second sinus" was totally removed in the patients with complex sinus type pressure sore. ResultsWound dehiscence occurred in 1 case of simple sinus type pressure sore at 4 days,which was cured after it was sutured again.Wound infection occurred at 9,17,and 23 days respectively in 3 cases of complex sinus type pressure sore,which was cured after second debridement and necrosis tissues removal.The other wounds healed by first intention,and the flaps totally survived.All patients were followed up 6-12 months (mean,9.3 months).No recurrence was observed. ConclusionAccording to the clinical characteristics,pressure sore of sinus type could be divided into simple sinus type and complex sinus type.The key of successful treatment is to thoroughly excise false synovial sheath and "second sinus".
Assisting immobile individuals with regular repositioning to adjust pressure distribution on key prominences such as the back and buttocks is the most effective measure for preventing pressure ulcers. However, compared to active self-repositioning, passive assisted repositioning results in distinct variations in force distribution on different body parts. This incongruity can affect the comfort of repositioning and potentially lead to a risk of secondary injury, for certain trauma or critically ill patients. Therefore, it is of considerable practical importance to study the passive turning comfort and the optimal turning strategy. Initially, in this study, the load-bearing characteristics of various joints during passive repositioning were examined, and a wedge-shaped airbag configuration was proposed. The airbags coupled layout on the mattress was equivalently represented as a spring-damping system, with essential model parameters determined using experimental techniques. Subsequently, different assisted repositioning strategies were devised by adjusting force application positions and sequences. A human-mattress force-coupled simulation model was developed based on rigid human body structure and equivalent flexible springs. This model provided the force distribution across the primary pressure points on the human body. Finally, assisted repositioning experiments were conducted with 15 participants. The passive repositioning effectiveness and pressure redistribution was validated based on the simulation results, experimental data, and questionnaire responses. Furthermore, the mechanical factors influencing comfort during passive assisted repositioning were elucidated, providing a theoretical foundation for subsequent mattress design and optimization of repositioning strategies.