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Entrapment of the long head of the biceps tendon: the hourglass biceps--a cause of pain and locking of the shoulder.

We describe an unrecognized mechanical condition affecting the long head of the biceps (LHB) tendon with entrapment of the tendon within the joint and subsequent pain and locking of the shoulder on elevation of the arm. We identified 21 patients with a hypertrophic intraarticular portion of the LHB tendon during open surgery (14 patients) or arthroscopic surgery (7 patients). All cases but one were associated with a rotator cuff rupture. Patients were treated by biceps tenotomy (2 patients) or tenodesis (19 patients) after removal of the hypertrophic intraarticular portion of the tendon and appropriate treatment of concomitant lesions. Minimum follow-up was 1 year. All patients presented with anterior shoulder pain and loss of active and passive elevation averaging 10 degrees to 20 degrees. A dynamic intraoperative test, involving forward elevation with the elbow extended, demonstrated entrapment of the tendon within the joint in each case. This test creates a characteristic buckling of the tendon and squeezing of it between the humeral head and the glenoid (hourglass test). The mean Constant score improved from 38 to 76 points at the final follow-up (P <.05). Complete and symmetric elevation was restored in all cases after resection of the intraarticular portion of the LHB tendon. The hourglass biceps is caused by a hypertrophic intraarticular portion of the tendon that is unable to slide into the bicipital groove during elevation of the arm; it can be compared with the condition of trigger finger in the hand. A loss of 10 degrees to 20 degrees of passive elevation, bicipital groove tenderness, and radiographic findings of a hypertrophied tendon can aid in the diagnosis. A definitive diagnosis is made at surgery with the hourglass test: incarceration and squeezing of the tendon within the joint during forward elevation of the arm with the elbow extended. The hourglass biceps is responsible for a mechanical block, which is similar to a locked knee with a bucket-handle meniscal tear. Simple tenotomy cannot resolve this mechanical block. Excision of the intraarticular portion of the LHB tendon, during bipolar biceps tenotomy or tenodesis, must be performed. The hourglass biceps is an addition to the familiar pathologies of the LHB (tenosynovitis, prerupture, rupture, and instability) and should be considered in cases of shoulder pain associated with a loss of elevation.

Aged↗

PubMed2006

Clinical outcomes after closed, staged, and open forefoot amputations.

BACKGROUND: Surgical approaches for forefoot osteomyelitis include amputation with immediate wound closure or resection followed by either staged re-resection and wound closure or local care of the open wound for secondary healing. This study evaluated the effectiveness of closed, staged, and open forefoot amputations in preventing major leg amputation and identified those variables that are associated with successful limb preservation. METHODS: From July 2002 to June 2004, 208 patients with forefoot osteomyelitis or gangrene underwent minor amputation according to a standard treatment algorithm. Wounds with limited cellulitis underwent immediate wound closure (CLOSED), wounds with marginally viable soft tissue underwent open amputation followed by wound closure at 2 to 7 days (STAGED), and wounds with tenosynovitis or extensive necrosis underwent débridement with no attempt at wound closure (OPEN). Patient demographics, need for further operative interventions, time to complete healing, and progression to major amputation were recorded. RESULTS: With four subjects lost to follow-up, 204 patients (98%) (94 CLOSED, 56 STAGED, and 54 OPEN) were monitored to complete healing, major amputation, or death. OPEN amputations had a significantly reduced initial healing rate (37%, P < .001) and a frequent need for repeat operative intervention (43%), although successful limb salvage was ultimately achieved in 70% of the cases. Initial healing in the CLOSED and STAGED amputation groups was similar (71% and 78%, respectively), leading to excellent early limb salvage (86% and 91%). The median time to healing for closed, staged, and open amputations was 1.2, 1.6, and 4.6 months, respectively (P < .001). Follow-up evaluation demonstrated the initial improvements in limb salvage with the CLOSED and STAGED groups were lost, resulting in similar amputation rates among the three groups of 30% to 35% over 36 months. CONCLUSIONS: Although open amputation of extensive forefoot infections frequently requires repeat operative interventions and a prolonged time to complete healing, this approach provides limb salvage rates approaching those observed for less invasive infections amenable to immediate closure. Staged closure offers an improved time to healing without negatively impacting the risk of major limb amputation. Independent of their initial operative approach, these patients frequently progress to early leg amputation.

Activities of Daily Living↗

PubMed2004

[Spontaneous rupture of extensor pollicis longus in systemic lupus erythematosus].

We report a case of spontaneous rupture of extensor pollicis longus of the left hand. This 63 year-old woman was treated with oral corticosteroids for 23 years because of systemic lupus erythematosus. Her hands had no deformity. This rupture was spontaneous and caused pain for 15 days. The treatment was surgical and consisted of an extensor indicis proprius transposition. There was no macroscopic tenosynovitis. The follow-up of one year showed a good result. Less than 40 spontaneous ruptures in systemic lupus erythematosus have been described in the literature; only seven cases were ruptures of hand tendons and only extensors. As far as we know, the spontaneous rupture of extensor pollicis longus has never been described in systemic lupus erythematosus. The role of corticosteroids is discussed.

Female↗

PubMed2004

Could rheumatoid arthritis result from an abnormal T cell response towards lubricin/superficial zone protein?

The lack of some suppressor T cells (including TCD4+CD25+(high) positively selected first in thymic medulla) specific to a restricted set of autoantigens may be the common link between all patterns of rheumatoid arthritis. In other words, instead of a 'peak' of TCD4+ effector T cells common to all patients with rheumatoid arthritis (which has so far never been demonstrated), a 'hole' in TCD4+CD25+(high) responses towards a limited set of autoantigens responsible for the normal maintenance of tolerance within the joints may be shared by many patients with rheumatoid arthritis. The hallmark of this disorder is the involvement of tissues subjected to friction stress bathed in a lubricating fluid (rheumatoid nodules and bursae, tendinous sheaths, pleura, pericardium, sclera, and joints covered by hyaline cartilage). Consequently, autoantigens shared by all forementioned places may be better candidates than autoantigens restricted to the hyaline cartilage (like collagen II). Tenosynovitis, bursitis and rheumatoid nodules can herald rheumatoid arthritis, and rheumatoid pericarditis is very frequent at the histological level. Lubricin and superficial zone protein (SZP), which are closely related products of the megacaryocyte stimulating factor (MSF) gene, are among the best candidate autoantigens for such a positive selection of suppressor T cells. Lubricin is responsible for most of the lubricating properties of synovial fluid, and SZP (expressed by the superficial articular chondrocytes from diarthrodial cartilages and lining cells of synovial villi) also shares lubricating and cytoprotective properties. Moreover, the expression of lubricin is very probable in pericardium and pleura, and can be induced by friction stress. Although this mucinous glycoprotein may already share close similarities at the antigenic levels with mucins previously demonstrated in Hassall's corpuscles of the thymus, evidence for the ectopic expression of lubricin/SZP within normal human thymus may further support this hypothesis. The prenatal positive selection within the thymus of a functional pool of TCD4+CD25+(high) clones specific for most peripheral tissues is critical (at least in mice) for the quality of tolerance for the rest of the organism's lifespan. Therefore, a poor expression of lubricin/SZP early in life within the human thymus may also favour a lack of suppressor T cells specific to tissues bathed with synovial fluid, i.e. the onset of rheumatoid arthritis later on in life. As studies of human thymus long before the onset of rheumatoid arthritis are hampered for obvious reasons, studies of murine thymus could be a first step. In as much as the human counterpart of lubricin is expressed in the thymic medulla of mice, the generation of knocked-out mice for its expression within the thymus could be one of the best models to test the above hypothesis. The stimulation of TCD4+CD25+(high) clones specific for immunodominant epitopes from the joints/synovial fluid (belonging perhaps to lubricin or SZP) could help restore a normal balance between effector T cells and suppressor T cells in rheumatoid arthritis patients.

Animals↗

PubMed2004

[Oculomotor muscles involvement revealing dermatomyositis in a patient with rheumatoid arthritis].

INTRODUCTION: Oculomotor muscles (OMM) involvement in dermatomyositis (DM) and in rheumatoid arthritis (RA) is unusual. The DM always leads to OMM inflammation, whereas the RA particularly leads to tenosynovitis of the superior oblique muscle referred to as the Brown syndrome. OBSERVATION: The patient is a 43-year-old woman who gives a 17-year-history of severe seropositive RA with bilateral coxite. She was hospitalized for acute painful proptosis. The clinical examination revealed an orbital erythema and a muscular rhizomelic weakness. The muscular enzymes were increased. The orbital CT revealed in the right side, an enlargement of the superior rectus muscle that was enhanced after intravenous injection, which is compatible with myositis involvement. The muscular biopsy practiced at the level of the calf showed the specific histological signs of the DM. This orbital involvement was resolved with a high dose of corticosteroids. CONCLUSION: Our observation has the specificity of associating RA with DM with an involvement of the superior rectus muscle, which is due to the DM rather than the RA.

Adult↗

PubMed2002

[Distal musculo-skeletal manifestations in rheumatic polymyalgia].

The frequency and characteristics of distal musculo-skeletal manifestations (DMM) are reported in a series of 136 patients with the diagnosis of rheumatic polymyalgia (RPM). Thirty-eight patients (28%) had DMM concomitantly with the diagnosis of RPM or during its course. Peripheral arthritis were most common, and 40 episodes were identified in 31 patients. Eight patients had the typical manifestations of the pitting edema. Tenosynovitis was observed in four patients and the carpal tunnel syndrome in three. Five patients had 2 DMM manifestations associated. In 80% of cases the detection of DMM occurred at diagnosis, and were associated with the characteristic proximal symptoms in RPM. The response to corticosteroid therapy was favorable in all cases. The eight patients with pitting edema had an ESR lower at diagnosis and a shorter total length of treatment of RPM.

Aged↗

PubMed2003

Modeling of time-dependent force response of fingertip to dynamic loading.

An extended exposure to repeated loading on fingertip has been associated to many vascular, sensorineural, and musculoskeletal disorders in the fingers, such as carpal tunnel syndrome, hand-arm vibration syndrome, and flexor tenosynovitis. A better understanding of the pathomechanics of these sensorineural and vascular diseases in fingers requires a formulation of a biomechanical model of the fingertips and analyses to predict the mechanical responses of the soft tissues to dynamic loading. In the present study, a model based on finite element techniques has been developed to simulate the mechanical responses of the fingertips to dynamic loading. The proposed model is two-dimensional and incorporates the essential anatomical structures of a finger: skin, subcutaneous tissue, bone, and nail. The skin tissue is assumed to be hyperelastic and viscoelastic. The subcutaneous tissue was considered to be a nonlinear, biphasic material composed of a hyperelastic solid and an invicid fluid, while its hydraulic permeability was considered to be deformation dependent. Two series of numerical tests were performed using the proposed finger tip model to: (a) simulate the responses of the fingertip to repeated loading, where the contact plate was assumed to be fixed, and the bone within the fingertip was subjected to a prescribed sinusoidal displacement in vertical direction; (b) simulate the force response of the fingertip in a single keystroke, where the keyboard was composed of a hard plastic keycap, a rigid support block, and a nonlinear spring. The time-dependent behavior of the fingertip under dynamic loading was derived. The model predictions of the time-histories of force response of the fingertip and the phenomenon of fingertip separation from the contacting plate during cyclic loading agree well with the reported experimental observations.

Bone and Bones↗

PubMed1999

Tendon and nerve sonography.

The refinement of high frequency transducers has improved the ability of ultrasound (US) to detect fine textural abnormalities of tendons and nerves and to identify a variety of pathologic conditions. Characteristic echotextural patterns, closely resembling the histologic ones, are typically depicted in these structures using high US frequencies. In tendon imaging, US can identify tendon dislocations, degenerative changes, differentiate partial from complete tears and determine whether the patient has to be treated surgically or conservatively. A spectrum of findings in inflammatory conditions, including paratendonitis and tenosynovitis, and tendon tumors also can be detected. In nerve imaging, US can support clinical and electrophysiologic testing for detection of compressing lesions caused by nerve entrapment in a variety of osteofibrous tunnels of the limbs and extremities. Nerve tears and tumors also can be diagnosed. Overall, US is an effective technique for imaging tendons and nerves.

Humans↗

PubMed1978

Tuberculosis of the hand.

Eleven cases of tuberculous infection affecting the hand are presented. The age incidence, clinical presentations and investigations are discussed. Treatment includes chemotherapy, radical synovectomy and early mobilisation. Hand function after surgery in the follow-up period of three to twenty-one months was very satisfactory with the exception of three cases which presented at a very late stage with secondary involvement of the wrists. The confusion that exists while using such terms as "Tuberculous Dactylitis" and "Tuberculous Tenosynovitis" is discussed. An alternative suggestion is made that "Tuberculosis of the Hand" be used.

Adult↗

PubMed2006

[Severe necrotic and haemorrhagic edema of the upper limbs revealing remitting seronegative symmetrical synovitis with pitting edema].

BACKGROUND: RS3PE (Remitting Seronegative Symmetrical Synovitis with Pitting Edema) syndrome is characterized by bilateral and symmetrical tenosynovitis of the distal extremities. It occurs with acute onset in older patients aged over 50 years. This heterogeneous entity can be isolated or can reveal various rheumatic diseases and neoplastic conditions. We report a case of RS3PE syndrome associated with unusually severe cutaneous necrotic and haemorrhagic lesions, and revealing malignant monoclonal IgM proliferation. CASE REPORT: A 62-year-old man was admitted for acute and symmetrical synovitis of both hands and forearms associated with fever and increased acute phase reactants. Severe necrotic and haemorrhagic edema developed simultaneously. Laboratory tests ruled out infectious disease and collagen vascular disorder. Clinical symptoms responded promptly to corticosteroids to reveal severe erosive arthropathy of both wrists. The monoclonal IgM proliferation discovered during the acute phase evolved into a malignant medullary plasmocytosis. After adequate treatment of this proliferation, no haematological, cutaneous or articular relapse occurred during the two-year follow-up period. DISCUSSION: This type of cutaneous symptoms has never been reported during the course of RS3PE syndrome. It may be supposed that the severity of the initial clinical picture was linked in this patient to the paraneoplastic nature of this.

Arm↗

PubMed1980

The bowel bypass syndrome: a response to bacterial peptidoglycans.

A characteristic intermittent neutrophilic dermatosis, associated with polyarthritis, tenosynovitis, malaise, fever, and cryoglobulinemia, occurs in 20% of patients who undergo ileojejunal bypass surgery for the treatment of morbid obesity. The clinical syndrome may mimic gonococcal sepsis. The histologic changes in the skin are those of Sweet's syndrome. The syndrome remits spontaneously in most cases, but it may recur intermittently over a period of years. Treatment with low-dose steroids, tetracycline, or metronidazole suppresses symptoms in most cases, and restoration of normal bowel anatomy is curative. Skin testing with Streptococcus pyogenes antigen causes an excerbation of symptoms, or may provoke the entire syndrome de novo. Bacterial peptidoglycans, especially those of group A streptococci, produce similar arthritis and skin lesions in animal models. Peptidoglycans from numerous intestinal bacteria share common structural and antigenic features with S. pyrogenes peptidoglycan and are suggested as causative of the toxic and immunologic features of this syndrome.

Antigens, Bacterial↗

PubMed2001

Biceps tendinitis and subluxation.

Since the 17th century, the long head of the biceps tendon as a source of shoulder pain and its functional significance has been a source of debate. Although the term tendinitis is commonly used, overuse tendon injuries infrequently demonstrate inflammatory cells; instead, degenerative changes resulting from the failure of self-repair usually are found. Bicipital tendinitis or bicipital tenosynovitis is most often secondary to impingement beneath the coracoacromical arch. Primary bicipital tendinitis and tendinitis secondary to instability are possible, however. Through a careful history, physical examination, and appropriate imaging studies, the clinician can establish the diagnosis of disorders of the biceps tendon Arthroscopic evaluation greatly improves the diagnosis and treatment of biceps tendon and related shoulder pathology. Although the exact functional role of the biceps tendon remains incompletely defined, a growing body of evidence supports its role as a stabilizer of the glenohumeral joint. This stabilizing function should be incorporated into the treatment of biceps tendon disorders. Routine tenodesis has been replaced by a more individualized approach, taking into consideration physiologic age, activity level, expectations, and exact shoulder pathology present. New repair techniques are under development, and preservation of the biceps-labral complex is now preferred when possible.

Cumulative Trauma Disorders↗

PubMed2003

Sensory and autonomic function in the hands of patients with non-specific arm pain (NSAP) and asymptomatic office workers.

Chronic pain in the upper limb associated with repetitive movements of the arm and hand is often seen in patients in the absence of specific pathology such as epicondylitis, carpal tunnel syndrome and tenosynovitis. This condition has been given many names and will be referred to here as non-specific arm pain (NSAP). Previous work has shown elevated vibration thresholds and reduced flare suggesting a neuropathic cause for this condition. In order to examine this further the present study has assessed functions that involve both large sensory nerve fibres (vibration) and small dorsal root fibres (flare) and sympathetic fibres (vasoconstriction). NSAP patients and also a group of office workers who intensively used display screen equipment but who did not have NSAP were also studied along with an age-matched control group. In the median innervated area of the hand we measured flare responses to iontophoresis of histamine (a sensory C-fibre effect), and sympathetic vasoconstrictor responses to ice stimulation over C7. To tie in with previous studies, vibration threshold over areas of the hand innervated by the median, ulnar and radial nerves was also evaluated. All measures were carried out over both hands in each subject. Significant differences from controls were found on all three measures for the NSAP patient group and on two measures for the office workers. Flare area was reduced by 33% in the patients and by 30% in the office workers. Reflex vasoconstriction was reduced by 20% in the patient group but was not altered in office worker group. Over the median innervated area on the hand, vibration threshold was elevated by 47% in the patients and by 21% in the office workers. These results confirm previous findings showing reduced function associated with both small and large sensory fibres in the NSAP patients and additionally, for the first time, demonstrate a functional change related to sympathetic fibres. Office workers demonstrate a similar but smaller trend for reduced nerve function associated with both small and large sensory fibre function, but had no change in the sympathetic reflex.

Adult↗

PubMed1991

Fibrous loose body in the flexor tendon sheath.

We report the first known example of an entirely fibrous loose body lying in the flexor tendon sheath of a finger. This was seen initially as a painless swelling in a fit young woman and was surgically excised with full restoration of function. The cause of the loose body is unknown, but it may have originated as a fibroma of the flexor tendon sheath or as a localized nodular tenosynovitis.

Adult↗

PubMed1977

Nocardia asteroides thenar space infection: a case report.

Nocardia commonly is thought of as producing a chronic pulmonary or granulomatous skin infection, but this report illustrates that it may begin as an acute inflammatory process. In view of the tenosynovitis which followed exploration of the tendon sheath in the patient presented and which required a second operation, it may be better to aspirate the sheath at a distant site to look for pus. Actinomycetes should be suspected and looked for with appropriate methods in any suppurative lesion, especially one not responding to conventional antibiotics.

Aged↗

PubMed1983

Palmar arthroplasty for the treatment of the stiff swan-neck deformity.

Palmar arthroplasty for the treatment of the stiff swan-neck deformity in rheumatoid arthritis is designed to correct the mechanical block to flexion that is caused by palmar plate adhesions (which obliterate the retrocondylar recess) and by collateral ligament contracture and adhesions. This procedure can be performed at the same time as correction of the primary cause of proximal interphalangeal joint (PIP) hyperextension (e.g., intrinsic tightness or flexor tenosynovitis) and can also be supplemented with superficialis tenodesis to minimize recurrent hyperextension. Postoperative flexor dynamic traction, which is started at 24 to 48 hours and continued for a minimum of 3 to 4 weeks, is critical to the maintenance of motion. Arthroplasty in 47 PIP joints in 14 hands of 9 patients demonstrate an increase in motion from +20 degrees hyperextension and 9.5 degrees flexion to -7 degrees extension and 72 degrees flexion postoperatively.

Adult↗

PubMed1984

Soft tissue T cell lymphoma of the forearm: a case report.

A patient with a soft tissue T cell lymphoma with symptoms of de Quervain's tenosynovitis and a forearm mass in the area of the abductor pollicis longus and extensor pollicis brevis is described. Previously excised soft tissue masses from other locations had presented a diagnostic dilemma in this patient. This report clarifies the histopathology of soft tissue T cell lymphomas of the extremities. After surgical debulking and local radiotherapy, there has been no evidence of recurrence at 1 year.

Adult↗

PubMed1985

The incomplete anterior interosseous nerve syndrome.

The anterior interosseous nerve syndrome involves paralysis of the flexor pollicis longus, flexor digitorum profundus of the index and long fingers, and the pronator quadratus. We have encountered 33 cases of an incomplete syndrome in which only the flexor pollicis longus or the flexor digitorum profundus of the index finger is either paretic or paralyzed. This entity must be distinguished from flexor tendon rupture, flexor tendon adherence or adhesion, and stenosing tenosynovitis. The nerve is usually compressed by fibrous bands that most commonly originate from the deep head of the pronator teres and to the brachialis fascia. Less common causes of compression are: fibrous bands from the superficial head of the pronator teres; bands from the superficialis arcade; the nerve running deep to both heads of the pronator; and compression by a double lacertus fibrosus. Patients presenting with paresis should be observed. Most will improve spontaneously without surgery. We recommend exploration and neurolysis of the anterior interosseous nerve in patients who present with complete paralysis of either muscle-tendon unit and who have shown no improvement as determined by physical examination or repeat electromyography after 12 weeks of observation. Recovery after neurolysis is often rapid and complete.

Adolescent↗