Diagnostic imaging for chronic plantar heel pain: a systematic review and meta-analysis

Approximately one-quarter of the population are affected by foot pain at any given time. It is often disabling and can impair mood, behaviour, self-care ability and overall quality of life. Currently, the nature and mechanism underlying many types of foot pain is not clearly understood. Here we comprehensively review the literature on foot pain, with specific reference to its definition, prevalence, aetiology and predictors, classification, measurement and impact. We also discuss the complexities of foot pain as a sensory, emotional and psychosocial experience in the context of clinical practice, therapeutic trials and the placebo effect. A deeper understanding of foot pain is needed to identify causal pathways, classify diagnoses, quantify severity, evaluate long term implications and better target clinical intervention.     

Endoscopic plantar fasciotomy in the treatment of chronic heel pain

Objective

To evaluate endoscopic plantar fasciotomy for the treatment of recalcitrant heel pain.

Method

We undertook a retrospective study of the use of endoscopic plantar fasciotomy in the treatment of chronic heel pain that was unresponsive to conservative treatment. Over a 10-year period, we reviewed the charts of 55 patients with a minimum 12-month history of heel pain that failed to respond to standard nonoperative methods and had undergone the procedure described. All patients were clinically reviewed and completed a questionnaire based on the American Orthopaedic Foot and Ankle Society (AOFAS) score for ankle and hindfoot.

Results

The mean follow-up was 18 months. The mean preoperative AOFAS score was 66.5; the mean postoperative AOFAS score was 88.2. The mean preoperative pain score was 18.6; the mean postoperative pain score was 31.1. Complications were minimal (2 superficial wound infections). Overall, results were favourable in over 80% of patients.

Conclusion

We conclude that endoscopic plantar fasciotomy is a reasonable option in the treatment of chronic heel pain that fails to respond to a trial of conservative treatment.     

Gallstones and risk of colonic cancer: a matched case-control study

The aim of the research was to verify the existence of an association between neoplasms in the colon and cholelithiasis, treated surgically or non-surgically. The case-control study was carried out on 109 patients operated on for cancer of the colon, and on 109 control patients operated on for benign pathology. Matching was carried out according to sex, age, region of origin and dietary habits of the patients. Results showed a significant association of cancer of the colon with concomitant cholelithiasis (odds ratio = 2.42) but not with previous cholecystectomy. This correlation was more evident in female patients (odds ratio = 3.2), over 65 years of age (odds ratio = 3.6), with neoplasms in the right colon (odds ratio = 5). Observations suggest cholecystectomy has a protective role as regards an increased risk of cancer of the colon in cholelithiasic patients. A confirmation of this association might also be beneficial in terms of early diagnosis of cancer of the colon, thereby allowing identification of a large population of risk patients to be submitted to monitored screening.     

Soft tissue reconstruction for the heel and plantar foot

Soft tissue resurfacing after the ravages of injury or disease continues to be a formidable problem. A thorough understanding of the biomechanics of ambulation and the way in which weight is distributed over the sole of the foot is key to successful outcomes. Soft tissue repair has evolved from the simple filling of holes to a much more sophisticated approach. A plantar-grade foot that distributes the patient's weight in a uniform manner should be the goal. If this can be done without increasing the energy expenditure of ambulation, then surgeons certainly have done our patients an excellent service. Surgeons must not overlook the tendon imbalances and bony deformities that can accompany the effects of disease or trauma. The more complex soft tissue repair may not always be in the patient's best interests. Surgeons should use the simplest approach that can restore the limb to as close to its preinjury level of function as possible. A coordinated approach with plastic surgery, orthopedic surgery, vascular surgery, and podiatric surgery should be the standard of care for patients requiring plantar soft tissue repair.     

The relationship of heel pad elasticity and plantar heel pain

Loss of heel pad elasticity has been suggested as one of the possible explanations of plantar heel pain. This hypothesis is evaluated by this blinded observer prospective study, using an age and weight matched control population. Hindfoot lateral radiographs of 73 patients with plantar heel pain, 29 of whom had bilateral involvement (102 feet), and who ranged in age from 20 to 60 years, were studied and compared with 120 healthy subjects (240 feet). Heel pad thickness and heel pad compressibility index were not significantly different in patients with plantar heel pain than in healthy subjects matched for age and weight. In patients with unilateral heel pain, heel pad thickness and heel pad compressibility index on the painful side were not significantly different from the opposite painless side. The contribution of the heel pad elasticity measured as a visual compressibility index for plantar heel pain is a matter of debate.     

跟骨结节骨赘对足跟部压力的影响及其与跟痛症的相关性

目的 探讨跟骨结节骨赘对足跟部压力的影响程度及其与跟痛症的相关性.方法 2005年2月至2007年4月,32例(48足)跟痛症伴跟骨结节骨赘患者、24例(33足)跟痛症无跟骨结节骨赘患者、18例(28足)跟骨结节骨赘无跟痛症患者及40名健康志愿者,分为病例1～3组及对照组.经站立和行走规范训练后,应用计算机化的足底压力分析系统(F-Scan Mobile,Tekscan,USA)测量分析比较四组间足跟部的静态峰值压力、动态平均峰值压力及动态最大峰值压力差异.结果 在足跟部静态、动态平均及最大峰值压力测量中,四组间差异均有统计学意义(P＜0.05).不同测量状态下,组间两两比较结果近似,即跟痛症伴跟骨结节骨赘组、跟骨结节骨赘无跟痛症组足跟部峰值压力较跟痛症无跟骨结节骨赘组和对照组明显增高,但增加的程度不同,增幅最大是动态最大的峰值压力,跟痛症伴跟骨结节骨赘组和跟骨结节骨赘无跟痛症组分别达到(638.8±172.3)kPa和(510.2±85.6)kPa,而跟痛症无跟骨结节骨赘组和对照组仅为(382.5±61.3)kPa和(395.6±62.3)kPa.结论 跟骨结节骨赘可明显增加足跟部压力,跟骨结节骨赘伴跟痛症时压力增高更为显著,而跟痛症无跟骨结节骨赘时,足跟部压力并未明显增高.     

Five-year follow-up results of instep plantar fasciotomy for chronic heel pain.

The results of a 5-year follow-up of patients who underwent surgical partial release of plantar fascia with plantar skin incision for treatment of chronic heel pain are presented. Evaluation included survey results from both a modified Mayo Scoring System and a list of specific questions developed by the authors. Thirty-three feet of 30 patients are evaluated. Thirty of the 33 feet studied achieved good or excellent results, scoring 80 or better on a 100-point scale. Ninety percent pain relief was achieved in 27 of the 33 feet studied (81.8%). A satisfaction rate of 90% or better was found with 30 of the 33 feet studied (90.9%). Long-lasting complications were described by five patients, including opposite foot pain, dorsal foot pain after extended activity, scar tissue discomfort, callus at scar area, and continued heel pain.     

Musculoskeletal dysfunction in men with chronic pelvic pain syndrome type III: a case-control study

PURPOSE: Men with chronic pelvic pain syndrome (CPPS) type III experience pelvic pain of uncertain etiology. Pain has been attributed to prostatic, bladder and muscular origins. Few studies have documented pelvic and abdominal muscle function in men with CPPS or compared their muscular examination to that of men without pain. We hypothesized that the musculoskeletal examinations of men with CPPS types IIIA and IIIB would show more spasm, tenderness and dysfunction than in men without CPPS. MATERIALS AND METHODS: A total of 62 men with CPPS and 89 healthy men without pelvic pain underwent a standardized musculoskeletal examination by a licensed physical therapist. RESULTS: Controls and patients with pain showed a significant difference in muscle spasm, increased muscle tone, pain with internal transrectal palpation of the pelvic muscles, and increased tension and pain with palpation of the levator ani and coccygeus muscles (p <0.001). Patients with pain also had significantly greater pain and tension with palpation of the psoas muscles and groin. Patients and controls did not differ significantly in strength testing of the lower abdominal and oblique muscles. CONCLUSIONS: Men with CPPS have more abnormal pelvic floor muscular findings compared with a group of men without pain. Abnormalities of the pelvic muscles may contribute to this pain syndrome.     

Trigger point therapy and plantar heel pain: A case report

The cause of plantar heel pain and fasciitis has continued to be a diagnostic challenge even though it is one of the most common musculoskeletal disorders of the foot and ankle. The subject has evoked strong emotions and sparked intense debate regarding the likely causes and effective treatment options. Myofascial trigger point as a treatment option for plantar heel pain and fasciitis has been inconspicuous. The full extent of its significance and potential is largely unexplored in podiatric literature and medicine. Myofascial trigger point may offer an alternative explanation of the etiology of plantar heel pain and fasciitis.     

The mechanical properties of the heel pad in unilateral plantar heel pain syndrome.

Plantar heel pain syndrome has been attributed to entrapment neuropathy, plantar fasciitis, calcaneal spurs, and stress fractures of the calcaneus. Although deteriorated mechanical properties of the heel pads may play an important role in the pathogenesis of heel pain syndrome, this has received little notice. In this study, a specially designed compression relaxation device with a push-pull scale and a 10-MHz linear array transducer was used to determine thickness of the heel pad under different loading conditions. Twenty consecutive patients aged 29 to 77 years with unilateral plantar heel pain syndrome were enrolled. Thickness of heel pad bilaterally was measured when the heel pad was compressed by serial increments of 0.5 kg to a maximum of 3 kg and then relaxed sequentially. The load-displacement curve during a loading-unloading cycle was plotted, and the compressibility index and energy dissipation ratio of the heel pad were calculated accordingly. Phase I displacement of the heel pad (from 0 to 1 kg load) on the painless side was greater than that on the painful side (P < 0.01), but there was no statistically significant difference between painless and painful sides in thickness of unloaded heel pads, compressibility index, or energy dissipation ratio (P > 0.05). In conclusion, the affected heel pad in plantar heel pain syndrome was stiffer under light pressure than the heel pad on the painless side. The changed nature of chambered adipose tissue in a painful heel pad may be responsible for its increased stiffness under light pressure.     

Comparison of ultrasonography and radiography in assessment of the heel pad compressibility index of patients with plantar heel pain syndrome. Measurement of the fat pad in plantar heel pain syndrome

AIMS: The shock absorption of the heel fat pad is assessed by heel-pad compressibility index measuring the thickness of the heel pad on the lateral radiographs unloaded and loaded by body-weight. Ultrasonography is an easily applicable method without radiation and magnification inherent in radiographs. There are no reports comparing these measurements by diagnostic ultrasonography and direct radiography in healthy individuals and in different clinical entities. The efficacy of ultrasonography in assessment of heel-pad compressibility index in patients with plantar heel pain syndrome was investigated comparing it with direct radiography. METHODS: The loaded and unloaded heel-pad thicknesses by ultrasonography and direct radiography were measured in 69 feet of 42 patients with plantar heel pain syndrome and their results were compared. RESULTS: In direct radiographs, the mean unloaded heel-pad thickness was 20+/-2 mm and ranged from 14 to 26 mm. Heel-pad compressibility index was 0.62+/-0.09. There was a strong positive correlation between the measurements of the unloaded thickness (r=0.84, P<0.001) and also between the measurements of the loaded thickness (r=0.88, P<0.001) done using ultrasonography and direct radiography. The difference between the results of measurements in two modalities did not exceed +/-1 mm in 50% and +/-2 mm in 81% in unloaded position and +/-1 mm in 62% and +/-2 mm in 82% in loaded position. CONCLUSION: Measuring unloaded and loaded heel pad thickness by ultrasonography is reliable in the adult feet with heel pain. The preference of ultrasonography is reasonable in the studies involving the heel fat pad.     

Distal tarsal tunnel release with partial plantar fasciotomy for chronic heel pain: an outcome analysis

This study evaluated the effectiveness of distal tarsal tunnel release with a partial plantar fasciotomy for chronic subcalcaneal pain syndrome in patients who failed nonoperative management through a retrospective review of all patients undergoing this procedure between 1994 and 1999. Distal tarsal tunnel release and a partial plantar fasciotomy were offered only to those patients with disabling heel pain and were performed under general anesthesia or ankle block. Seventy-five patients (80 heels), averaging 20 months of nonoperative treatment, were identified (group I). Postoperative outcome questionnaires (SF-36 and Foot Function Index [FFI]) were sent to these patients and 44 (46 heels) responded (group II). In group I, 88% of patients had a good to excellent result. Many continued with mild to moderate residual symptoms, which typically did not limit their activity. In group II, 91% of patients were somewhat to very satisfied with their outcome. Visual analogue scale scores for pain were reduced by a mean of 55. SF-36 scores, matched against a control group of patients receiving just nonoperative treatment, showed a statistically significant improvement in all pain and functioning subcategories. We conclude that a distal tarsal tunnel release with a partial plantar fasciotomy may successfully increase function and decrease pain in patients who fail nonoperative treatment.     

Tissue-specific plantar fascia-stretching exercise enhances outcomes in patients with chronic heel pain. A prospective,randomized study

BACKGROUND: Approximately 10% of patients with plantar fasciitis have development of persistent and often disabling symptoms. A poor response to treatment may be due, in part, to inappropriate and nonspecific stretching techniques. We hypothesized that patients with chronic plantar fasciitis who are managed with the structure-specific plantar fascia-stretching program for eight weeks have a better functional outcome than do patients managed with a standard Achilles tendon-stretching protocol. METHODS: One hundred and one patients who had chronic proximal plantar fasciitis for a duration of at least ten months were randomized into one of two treatment groups. The mean age was forty-six years. All patients received prefabricated soft insoles and a three-week course of celecoxib, and they also viewed an educational video on plantar fasciitis. The patients received instructions for either a plantar fascia tissue-stretching program (Group A) or an Achilles tendon-stretching program (Group B). All patients completed the pain subscale of the Foot Function Index and a subject-relevant outcome survey that incorporated generic and condition-specific outcome measures related to pain, function, and satisfaction with treatment outcome. The patients were reevaluated after eight weeks. RESULTS: Eighty-two patients returned for follow-up evaluation. With the exception of the duration of symptoms (p < 0.01), covariates for baseline measures revealed no significant differences between the groups. The pain subscale scores of the Foot Function Index showed significantly better results for the patients managed with the plantar fascia-stretching program with respect to item 1 (worst pain; p = 0.02) and item 2 (first steps in the morning; p = 0.006). Analysis of the response rates to the outcome measures also revealed significant differences with respect to pain, activity limitations, and patient satisfaction, with greater improvement seen in the group managed with the plantar fascia-stretching program. CONCLUSIONS: A program of non-weight-bearing stretching exercises specific to the plantar fascia is superior to the standard program of weight-bearing Achilles tendon-stretching exercises for the treatment of symptoms of proximal plantar fasciitis. These findings provide an alternative option to the present standard of care in the nonoperative treatment of patients with chronic, disabling plantar heel pain.     

Risk factors that may adversely modify the natural history of the pediatric pronated foot

Flatfoot is one of the most common conditions seen in pediatric podiatry practice. There is no universally accepted definition for flatfoot. Flatfoot is a term used to describe a recognizable clinical deformity created by malalignment at several adjacent joints. Clinically, a flatfoot is one that has a low or absent longitudinal arch. Determining flexibility (physiologic) or rigidity (pathologic) is the first step in management. A flexible flat foot will have an arch that is present in open kinetic chain (off weight-bearing) and lost in closed kinetic chain (weight-bearing). A rigid flatfoot has loss of the longitudinal arch height in open and closed kinetic chain. According to Mosca, "The anatomic characteristics of a flatfoot are excessive eversion of the subtalar complex during weight-bearing with plantarflexion of the talus, plantarflexion of the calcaneus in relation to the tibia, a dorsiflexed and abducted navicular and a supinated forefoot." Normally developing infants have a flexible flatfoot and gradually develop a normal arch during the first decade of life. When evaluating an infant for a pronated condition, the examiner must also consider other risk factors that may affect the foot in its overall development. These contributing factors will play a role in the development of a treatment plan. The risk factors include ligamentous laxity, obesity, rotational deformities, tibial influence, pathological tibia varum, equinus, presence of an os tibiale externum, and tarsal coalitions. The authors realize other less significant factors exist but are not as detrimental to the foot as the primary ones discussed in depth. The primary risk factors that affect the pronated foot have been outlined. The clinician should always examine for these conditions when presented with a child exhibiting pronatory changes. A thorough explanation to the parents as to the consequential effects of these risk factors and their effects on the pediatric pronated foot is paramount to providing an acceptable comprehensive treatment program. Children often are noncompliant with such treatments as stretching and orthotic maintenance. The support of the parents is crucial to maintaining an effective treatment program continued at home.     

The plantar approach to heel surgery: a retrospective study.

The authors' present a plantar surgical approach for the patient with painful heel syndrome that is refractory to conservative care. Patient selection, methods, and results are discussed and analyzed. Twenty-two patients with 25 painful heels underwent the procedure. Retrospective analysis of these patients clearly shows this procedure is a viable alternative for heel surgery.     

Neurosensory testing of the medial calcaneal and medial plantar nerves in patients with plantar heel pain

Eighty-two patients with a chief complaint of plantar heel pain were evaluated for sensory abnormalities within the cutaneous distribution of both the medial calcaneal nerve and the medial plantar nerve, using quantitative neurosensory testing with a pressure-specified sensory device. The results showed that 22.68% of the patients displayed isolated abnormal sensory function within the distribution of the medial calcaneal nerve, whereas 49.48% of the patients displayed abnormal function within the distribution of both the medial calcaneal and the medial plantar nerves. Thus, 72.17% of the patients displayed abnormal sensory function within the distribution of the medial calcaneal nerve. Statistical analysis of the results, using the Pearson chi-square statistic and odds ratio, indicated that a significant percentage of patients with plantar heel pain, even early in the clinical course of plantar heel pain, display abnormal sensibility within the branches of the posterior tibial nerve, and specifically, within the distribution of the medial calcaneal nerve (P <.0008) and the medial plantar nerve (P <.0001).     

Effectiveness of low-Dye taping for the short-term treatment of plantar heel pain: a randomised trial

Background  

Plantar heel pain is one of the most common musculoskeletal disorders of the foot and ankle. Treatment of the condition is usually conservative, however the effectiveness of many treatments frequently used in clinical practice, including supportive taping of the foot, has not been established. We performed a participant-blinded randomised trial to assess the effectiveness of low-Dye taping, a commonly used short-term treatment for plantar heel pain.