2013年6月26日 星期三

Traditional bunion surgery: Bone-breaking procedures







Bunion surgery has traditionally employed different bone "break-n-shift" methods whether by open or minimal invasive technique with pin, screw, plate or no fixation. Currently, they are still very popular and make up more than 90% of all bunion surgeries.

Despite its popularity among surgeons, patients are often troubled and having second thoughts about such seemingly quiteinvolved surgery.



Reference information: www.bunioncenter.com


Surgeons have also been quite cautious and conservative with surgical expectations. American Academy of Orthopedic Surgeons, British Orthopaedic Foot and Ankle Society and also Cochrane Reviews have always advised patients to be realistic about their surgical expectations.

Generally, there are still restrictions in the type of shoes and activities after surgery. Of course, the most ideal goal for bunion surgery is to be able to normalize foot for unrestricted shoe styles and activities without pain and recurrence. Has this high goal been achieved by the current bone-breaking approach to bunion correction? Will it?




It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your Orthopedist for diagnosis and treatment.

2013年6月24日 星期一

Surgical treatment




There have been reportedly more than 130 different bunion surgeries being tried in the past and there are still more than 20 of them being commonly practiced around the world at present.


 This larger than usual number of surgical methods for one single condition is an indication that surgeons were and are still dissatisfied with many if not most surgical methods so far.

Currently, indications and recommendations for the many different bunion procedures are complex and not well defined. Doctors and patients are equally confused and frustrated.






Reference information: www.bunioncenter.com

It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your Orthopedist for diagnosis and treatment.

2013年6月18日 星期二

Taking Steps to Ease Bunion Pain - Dr Daniel Wu



  Of all foot ailments, the bunion is probably the best known and most troublesome.   It affects predominantly women with more than 90 per cent of cases occurring on the feet of females.   Although high heeled and pointy-toed shoes have been commonly blamed for bunions (hallux valgus), heredity and female hormones are actually much more important factors.   Studies in the past have found strong correlation between the adoption of ordinary Western shoes and significantly increased incidences of bunion deformity in previously barefoot societies.  

In 2008, a survey of 1,000 Hong Kong Chinese women conducted by Hong Kong Baptist University found 83 per cent of bunion sufferers in Hong Kong had rarely worn high heels in the past, but 88 per cent had family history of bunions.   Although bunion deformity initially may seem to be a cosmetic problem, it is a progressive condition which can result in pain and deteriorating function of the big toe. As the big toe is the most important part of the forefoot used in pushing the body forward in walking, severe bunion deformity can make simple daily activities a chore.

 A bunion is also the underlying cause of many secondary problems, such as painful calluses, clawing of the lesser toes, bunionettes and the collapse of both arches in the foot.   Bunion deformity has also been wrongly labelled a condition of deformed bones which has led sufferers to endure bone-breaking surgeries as a solution. On the contrary, it is mostly a soft tissue problem involving weak ligaments.   Basically, a bunion is formed by bones shifting out of their normal positions due to the failure of supporting ligaments. These displaced bones are responsible for most of the function of the forefoot and their displacement undermines the very basic walking function of foot.   Unfortunately, treatment is somewhat limited. There is no known non-surgical method to reverse the deformity. Nor is there an effective intervention to prevent formation or worsening of the deformity.

 There are only unproven devices which attempt to slow down the progression of the deformity and reduce some discomfort.   Anti-inflammatory medications and physiotherapy can help reduce pain temporarily but roomier, softer upper and thicker soled shoes with specific shoe inserts are more effective in limiting bunion pain. Avoiding high heels and choosing only comfort shoes may not alter this ailment’s natural course of progression, but it can help delay the need for surgery.  

 If pain becomes unmanageable and begins to interfere with a person’s lifestyle, then surgery may be considered.   In the past, surgeons and patients were faced with the daunting task of choosing from a record-breaking 130 procedures for bunions. Fortunately, the choice has become easier with the advent of the computerized function scanner. These scanners not only help identify the types of surgery which can consistently restore normal foot function, but are also able to verify the success of each surgical case in terms of function improvement.   The function test is now an integral part of bunion surgery and not only demonstrates whether a foot is able to function again correctly but also the reason behind any possible residual pain and calluses. This is important if bunion surgery is to be rightly seen as an important step in addressing a function problem of the foot and not simply a cosmetic procedure.   In conclusion, the causes and problems of bunion deformity are often trivialized and underestimated. The most practical way to manage bunion pain is to wear comfortable shoes. However, if necessary, surgery can be performed to help restore normal function and allow an active and healthy life.
Of all foot ailments, the bunion is probably the best known and most troublesome.

It affects predominantly women with more than 90 per cent of cases occurring on the feet of females.

Although high heeled and pointy-toed shoes have been commonly blamed for bunions (hallux valgus), heredity and female hormones are actually much more important factors.

Studies in the past have found strong correlation between the adoption of ordinary Western shoes and significantly increased incidences of bunion deformity in previously barefoot societies.

In 2008, a survey of 1,000 Hong Kong Chinese women conducted by Hong Kong Baptist University found 83 per cent of bunion sufferers in Hong Kong had rarely worn high heels in the past, but 88 per cent had family history of bunions.

Although bunion deformity initially may seem to be a cosmetic problem, it is a progressive condition which can result in pain and deteriorating function of the big toe. As the big toe is the most important part of the forefoot used in pushing the body forward in walking, severe bunion deformity can make simple daily activities a chore.

A bunion is also the underlying cause of many secondary problems, such as painful calluses, clawing of the lesser toes, bunionettes and the collapse of both arches in the foot.

Bunion deformity has also been wrongly labelled a condition of deformed bones which has led sufferers to endure bone-breaking surgeries as a solution. On the contrary, it is mostly a soft tissue problem involving weak ligaments.

Basically, a bunion is formed by bones shifting out of their normal positions due to the failure of supporting ligaments. These displaced bones are responsible for most of the function of the forefoot and their displacement undermines the very basic walking function of foot.

Unfortunately, treatment is somewhat limited. There is no known non-surgical method to reverse the deformity. Nor is there an effective intervention to prevent formation or worsening of the deformity.

There are only unproven devices which attempt to slow down the progression of the deformity and reduce some discomfort.

Anti-inflammatory medications and physiotherapy can help reduce pain temporarily but roomier, softer upper and thicker soled shoes with specific shoe inserts are more effective in limiting bunion pain. Avoiding high heels and choosing only comfort shoes may not alter this ailment’s natural course of progression, but it can help delay the need for surgery.

If pain becomes unmanageable and begins to interfere with a person’s lifestyle, then surgery may be considered.   In the past, surgeons and patients were faced with the daunting task of choosing from a record-breaking 130 procedures for bunions. Fortunately, the choice has become easier with the advent of the computerized function scanner. These scanners not only help identify the types of surgery which can consistently restore normal foot function, but are also able to verify the success of each surgical case in terms of function improvement.

The function test is now an integral part of bunion surgery and not only demonstrates whether a foot is able to function again correctly but also the reason behind any possible residual pain and calluses.
This is important if bunion surgery is to be rightly seen as an important step in addressing a function problem of the foot and not simply a cosmetic procedure.

In conclusion, the causes and problems of bunion deformity are often trivialized and underestimated. The most practical way to manage bunion pain is to wear comfortable shoes. However, if necessary, surgery can be performed to help restore normal function and allow an active and healthy life.


 Dr Daniel Wu, Yiang, Specialist in Orthopaedics 











It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your Orthopedist for diagnosis and treatment.Reference information: www.hkah.org.hk/




2013年6月17日 星期一

拇趾外翻?

拇囊腫是指拇趾旁邊的突起物,是一種普遍的前足部骨骼和軟組織移位而引起的變形現象,醫學上稱為"拇趾外翻綜合症" (如圖2-4)

拇趾外翻是指大拇趾向外傾斜,之所以被看作綜合症是由於它往往引發一連串足部問題,如爪形趾,足弓下塌,足繭甚至尾趾囊腫等。




參考資料
: www.bunioncenter.com
以上所提供的資訊僅作為教育及參考用途,如果你有任何醫療問題,
應向自己的骨科醫生查詢,而不應單倚賴以上提供的資料。






2013年6月13日 星期四

揀啱對鞋保護足部






夏天即將來臨,不少人開始考慮選擇穿涼鞋外出,人字拖更大受歡迎。但由於穿人字拖時需用腳趾抓緊,所以不適宜穿着外出。不過即使在家穿着,也要留意鞋底厚度及柔軟度是否足夠,若有足弓承托則更佳,可以保護腳底。


上班族大多需要在辦公室長時間工作,選購皮鞋時可選擇繫有鞋帶的,方便調校鬆緊。女士們應盡量避免穿高跟鞋,因會大大加重足底承受的壓力,如長時間穿着,足部患病的機會率,比不穿高跟鞋約高出四倍;鞋跟亦不應高於一吋半,穿着高跟鞋的女士可於辦公室內,多置一雙平底鞋,交替穿着,以減少對足部的壓力。

家長為小朋友選擇上學鞋,除了留意鞋面皮革是否柔軟,也需選購有鞋帶或魔術貼的款式,方便小朋友腳部發育後調校鬆緊。別期望鞋子久穿後會擴張,應避免孩子穿着的皮鞋過緊,增加腳趾變形機會,影響足部發育。父母也應每三個月檢查一次童鞋,看看是否過緊不合適。另外,小孩子多好動,故鞋身以較輕身及防滑的款式為佳。

如有特別足患,如扁平足、糖尿足及大拇趾外翻等,選鞋時更應注意鞋子的設計、款式和保護力,甚至在醫生或矯形師的建議下,考慮具矯形作用的鞋子及鞋墊以減輕足患。


新聞來源:  the-sun.on.cc/
以上所提供的資訊僅作為教育及參考用途,如果你有任何醫療問題,
應向自己的骨科醫生查詢,而不應單倚賴以上提供的資料

2013年6月11日 星期二

糖尿病或類風濕關節炎的拇趾外翻案例



糖尿病或類風濕關節炎的拇趾外翻案例(#1206):

縱使因糖尿病影響身體復原功能;又或因免疫系統問題(如類風濕關節炎)需服用藥物治療控制新陳代謝的患者,只要患者具有正常的傷口癒合能力,連接第一及第二蹠骨的韌帶仍可建立。這位50歲類風濕關節炎需服用藥物的患者,手術後一年第一蹠骨明顯地被新建韌所修正和固定於正常位置上。


資料來源: www.bunioncenter.com/




以上所提供的資訊僅作為教育及參考用途,如果你有任何醫療問題,
應向自己的骨科醫生查詢,而不應單倚賴以上提供的資料

2013年6月5日 星期三

A pertinent analogy: Leaning Tower of Pisa

Bunion deformity is fundamentally formed by the loosened first metatarsal bone that has lost its ligamentous support and thus tilts abnormally to one side.


This scenario is not unlike the Leaning Tower of Pisa which has also lost its external support of a weak foundation. Both first metatarsal bone and the Tower are basically unchanged and normal in shape by themselves.

To upright the Tower by the "break-n-shift" concept as in traditional bone-breaking bunion (hallux vaglus) surgery would not only induce unnecessary damages to the normal and innocent Tower itself, but also fail to address its underlying issue of a weak foundation.

Similarly, the normal and innocent first metatarsal would also be damaged of its function and not stabilized against future recurrence of tilting.



Reference information: www.bunioncenter.com

It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your Orthopedist for diagnosis and treatment.


2013年6月3日 星期一

Who gets a bunion deformity and the High Heel Myth?

Contrary to popular belief, high-heel shoes are actually not the main cause of ligament failure in bunion feet. Studies have indeed shown that more than 90% of bunion sufferers are female and that societies changing from barefoot to wearing ordinary shoes (not high-heels) increased in their incidence of bunion condition.

However, there have been no subsequent studies to show how much high-heel shoes make feet more susceptible to bunion formation than the original findings by ordinary shoes. The reason for female being more susceptible to bunion development is due actually to their female hormones (estrogen) which tend to loosen ligaments, including the ones supporting the displaced bones in bunion feet. Genes plays also a much more important role than high-heel shoes.

A woman' s body is more flexible due 
to the female hormone estrogen.


Studies have shown more than 80% of bunion sufferers have positive family history and most of them never wore much high heels at all. Only a small proportion ( <5%) of bunion patients can only blame on their high-heel shoes for they have no family history of bunions. One study showed that positive family history is probably 25 times more important as a cause of bunions than high-heel shoes.


The strong evidence of female hormone being possibly the most important causative factor in bunion development is because bunion is a soft tissue problem of ligament loosening and female hormones is responsible for looser female joints than male's and loosening of pelvic ring for easier delivering of babies. Interestingly, some women did notice their bunion deformity had become worse during and after their pregnancies.

In summary, bunions are mainly a female condition relating to their female hormone and often compounded by heredity. Although high-heel shoes are not the main cause of ligament failure in bunion feet, they can probably precipitate earlier onset and accelerate progression of a bunion prone foot due to genetic factor. Avoiding high heels may help prevent unnecessary aggravation but not necessarily its progressive nature. If a woman has no family history of bunion deformity, there is probably still increased risk after wearing high heels for a significant number of years.



Total 1056 surveyed
395 (36.5%) had bunions
High heels (+)
High heels (-)
395 (36.5%) had bunions
100%
17%
83%
Family History (+)
88%
14%
74%
Family History (-)
12%
3%
9%

Survey results initiated by Center for Dr. Wu's bunion surgery with the co-operation of Hong Kong Baptist University




Reference information: www.bunioncenter.com

It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your Orthopedist for diagnosis and treatment.