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1.
J Radiol Case Rep ; 16(4): 1-10, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35530418

ABSTRACT

The pisiform is a sesamoid bone that acts as one of the key medial stabilizers of the wrist. We present a case of a 35-year-old gentleman who presented with medial wrist pain following a fall while rollerblading. Radiographs and Magnetic resonance imaging (MRI) revealed a rare combination of an acute pisiform dislocation with associated triquetral fracture. Subsequently, he was successfully treated with excision of the pisiform. Pisiform dislocation is an uncommon injury and can easily be missed in an acute emergency presentation. Therefore, it is important to be aware of the characteristic imaging appearance to avoid a delay in diagnosis and treatment.


Subject(s)
Joint Dislocations , Pisiform Bone , Accidental Falls , Adult , Humans , Joint Dislocations/diagnostic imaging , Joint Dislocations/surgery , Male , Pisiform Bone/diagnostic imaging , Pisiform Bone/injuries , Pisiform Bone/surgery , Radiography , Wrist Joint
2.
Skeletal Radiol ; 51(8): 1687-1694, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35079865

ABSTRACT

PURPOSE: To describe our techniques for ultrasound-guided injection of the pisotriquetral joint (PTJ), and to report our experience in a case series. METHODS: Between 7/1/14 and 11/30/20, we performed 42 injections in 33 patients with ulnar-sided wrist pain, referred by clinicians who suspected the PTJ as the pain generator. There were 16 males and 17 females, average age 46.7 years. The patients were positioned in one of five ways: sitting with the hand maximally supinated; sitting with the hand maximally pronated; supine with the elbow flexed across the chest and the ulnar aspect of the wrist facing upward; supine with the elbow flexed, the arm externally rotated, and the ulnar aspect of the wrist facing upward; prone with the symptomatic hand at their side and the ulnar aspect of the wrist facing upward. RESULTS: The procedures were performed by any of twelve fellowship-trained musculoskeletal radiologists. Fifteen patients reported immediate relief of symptoms, including 6 patients whose pisotriquetral joints were normal sonographically. Four patients underwent subsequent surgical excision of their pisiforms and the fifth underwent arthroscopic debridement of the pisotriquetral joint. CONCLUSION: Ultrasound is a facile imaging modality for guiding pisotriquetral injections, which may be accomplished with a variety of patient positions and injection techniques.


Subject(s)
Carpal Joints , Pisiform Bone , Arthralgia/diagnostic imaging , Arthralgia/drug therapy , Arthralgia/etiology , Carpal Joints/diagnostic imaging , Female , Humans , Male , Middle Aged , Pisiform Bone/diagnostic imaging , Ultrasonography, Interventional , Wrist Joint/diagnostic imaging , Wrist Joint/surgery
3.
J Hand Surg Am ; 47(10): 1021.e1-1021.e4, 2022 10.
Article in English | MEDLINE | ID: mdl-34538669

ABSTRACT

Impaction fracture subluxation of the pisotriquetral joint producing arthrosis and ulnar triquetral osteochondral nonunion is a cause for ulnar wrist pain in batting athletes. Two cases of adolescent female softball players managed successfully with pisiform and triquetral fragment excision are reported.


Subject(s)
Baseball , Carpal Joints , Joint Dislocations , Osteoarthritis , Pisiform Bone , Triquetrum Bone , Adolescent , Carpal Joints/surgery , Female , Humans , Joint Dislocations/diagnostic imaging , Joint Dislocations/etiology , Joint Dislocations/surgery , Osteoarthritis/diagnostic imaging , Osteoarthritis/etiology , Osteoarthritis/surgery , Pisiform Bone/diagnostic imaging , Pisiform Bone/surgery , Triquetrum Bone/diagnostic imaging , Triquetrum Bone/surgery , Wrist Joint/diagnostic imaging
4.
BMJ Case Rep ; 14(1)2021 Jan 06.
Article in English | MEDLINE | ID: mdl-33408102

ABSTRACT

A pisiform dislocation is an uncommon injury which can lead to significant morbidity if missed. The literature regarding pisiform dislocation is limited and largely from case reports. In this case, we present a 51-year-old right-hand dominant male who sustained the injury after a fall. He attended the emergency department on the same day and a closed reduction was able to be performed under a haematoma block. On review in follow-up clinic the patient's symptoms had completely resolved.


Subject(s)
Accidental Falls , Closed Fracture Reduction , Joint Dislocations/diagnosis , Pisiform Bone/injuries , Wrist Injuries/diagnosis , Casts, Surgical , Humans , Joint Dislocations/etiology , Joint Dislocations/surgery , Male , Middle Aged , Pisiform Bone/diagnostic imaging , Treatment Outcome , Wrist Injuries/etiology , Wrist Injuries/surgery
5.
Hand (N Y) ; 15(1): 64-68, 2020 01.
Article in English | MEDLINE | ID: mdl-30027757

ABSTRACT

Background: Increasing severity of carpal tunnel syndrome (CTS), as graded by nerve conduction studies (NCS), has been demonstrated to predict the speed and completeness of recovery after carpal tunnel release (CTR). The purpose of this study is to compare the cross-sectional area (CSA) of the median nerve in patients with severe and nonsevere CTS as defined by NCS. Methods: Ultrasound CSA measurements were taken at the carpal tunnel inlet at the level of the pisiform bone by a hand fellowship-trained orthopedic surgeon. Severe CTS on NCS was defined as no response for the distal motor latency (DML) and/or distal sensory latency (DSL). Results: A total of 274 wrists were enrolled in the study. The median age was 51 years (range: 18-90 years), and 72.6% of wrists were from female patients. CSA of median nerve and age were comparatively the best predictors of severity using a linear regression model and receiver operator curves. Using cutoff of 12 mm2 for severe CTS, the sensitivity and specificity are 37.5% and 81.9%, respectively. Conclusions: Ultrasound can be used to grade severity in younger patients (<65 years) with a CTS-6 score of >12.


Subject(s)
Carpal Tunnel Syndrome/diagnosis , Electrodiagnosis/statistics & numerical data , Median Nerve/diagnostic imaging , Severity of Illness Index , Ultrasonography/statistics & numerical data , Adolescent , Adult , Aged , Aged, 80 and over , Electrodiagnosis/methods , Female , Humans , Linear Models , Male , Middle Aged , Neural Conduction , Pisiform Bone/diagnostic imaging , ROC Curve , Reference Values , Reproducibility of Results , Sensitivity and Specificity , Ultrasonography/methods , Wrist/diagnostic imaging , Young Adult
6.
Medicine (Baltimore) ; 97(48): e13229, 2018 Nov.
Article in English | MEDLINE | ID: mdl-30508905

ABSTRACT

No surgical procedure perfectly treats advanced Kienböck disease. Although vascularized os pisiform transferring (VOPT) is one of the main therapeutic approaches, reports on long-term follow-up and case series for this technique are scarce.We collected postoperative results in 11 patients with advanced Kienböck disease who underwent VOPT between 1986 and 2001 in our Hospital. Follow-up durations ranged from 15 to 26 years.At the last follow-up, excellent and good results were found in 81.8% according to the Modified Green and O'Brien score. Postoperative imaging revealed significantly reduced pisiform bone; carpal height ratio and Nattrass index were decreased, while the radioscaphoid angle was increscent, compared with preoperative and mid-term follow-up results.The favorable long-term results demonstrated that VOPT is a dependable and durable procedure for the treatment of advanced Kienböck disease, with pain relief and functional improvement despite some radiographic findings such as wrist osteoarthritis occurrence.


Subject(s)
Osteonecrosis/surgery , Pisiform Bone/transplantation , Adult , Female , Follow-Up Studies , Humans , Male , Middle Aged , Osteonecrosis/diagnostic imaging , Pisiform Bone/blood supply , Pisiform Bone/diagnostic imaging , Postoperative Complications , Retrospective Studies , Time Factors , Young Adult
8.
Tech Hand Up Extrem Surg ; 22(1): 26-30, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29356718

ABSTRACT

Few cases in which open reduction and internal fixation was performed for displaced pisiform fractures have been reported. We present a new surgical technique for the treatment of depressed intra-articular pisiform fractures. First, the depressed fragment was reduced by pushing the bone tamp. Then, the fracture void resulting from the reduction of the depressed fragment was filled with a shaped hydroxyapatite block. Finally, the fragments were sutured using braided polyblend polyethylene sutures. The postoperative radiography could achieve a well-reduced articular facet, and this procedure had a good clinical outcome.


Subject(s)
Bone Cements , Durapatite , Intra-Articular Fractures/surgery , Pisiform Bone/injuries , Pisiform Bone/surgery , Sutures , Casts, Surgical , Female , Fracture Healing , Humans , Intra-Articular Fractures/diagnostic imaging , Middle Aged , Pisiform Bone/diagnostic imaging , Polyethylenes , Postoperative Care , Young Adult
9.
J Hand Surg Am ; 43(1): 54-60, 2018 01.
Article in English | MEDLINE | ID: mdl-29169722

ABSTRACT

Pisotriquetral instability is an often-overlooked condition that can lead to ulnar-sided wrist pain and dysfunction. Various case series and biomechanical studies have been published regarding the diagnosis and treatment of this condition. We review current methods for examining, diagnosing, and treating pisotriquetral instability.


Subject(s)
Carpal Joints/surgery , Joint Instability/therapy , Pisiform Bone/surgery , Triquetrum Bone/surgery , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Arthrodesis , Carpal Joints/anatomy & histology , Carpal Joints/diagnostic imaging , Glucocorticoids/therapeutic use , Humans , Immobilization , Joint Instability/diagnosis , Ligaments, Articular/anatomy & histology , Ligaments, Articular/physiology , Medical History Taking , Physical Examination , Pisiform Bone/anatomy & histology , Pisiform Bone/diagnostic imaging , Triquetrum Bone/anatomy & histology , Triquetrum Bone/diagnostic imaging
10.
Hand (N Y) ; 12(5): 490-492, 2017 09.
Article in English | MEDLINE | ID: mdl-28832198

ABSTRACT

BACKGROUND: Patients with suspected pisotriquetral osteoarthritis may show joint space narrowing. However, the extent of joint space narrowing and its deviation from the joint space width (JSW) in normal anatomy is unknown. In this pathoanatomic study, we therefore compared the JSW in the pisotriquetral joint between osteoarthritic patient wrists and healthy wrists. METHODS: We reviewed preoperative computed tomography (CT) scans of 8 wrists of patients with ulnar-sided wrist pain who underwent a pisiformectomy with confirmed pisotriquetral osteoarthritis at surgery. We also reviewed CT scans of 20 normal wrists from healthy volunteers serving as control group. Three-dimensional CT models of the pisiform and triquetrum were obtained from both affected and normal wrists, after which the minimum JSW was calculated in an automated fashion. RESULTS: In the patient group, the median (interquartile range) of the minimum JSW was 0.1 mm (0.0-0.2), and in the control group, 0.8 mm (0.3-0.9) ( P = .007). CONCLUSIONS: We showed that the pisotriquetral joint space in osteoarthritic patient wrists was significantly narrowed compared with healthy wrists. These results suggest that JSW evaluation has a potential diagnostic value in the work-up of patients with suspected pisotriquetral osteoarthritis. This is an interesting area for future clinical research, especially because no gold standard for diagnosing pisotriquetral osteoarthritis has been established yet.


Subject(s)
Carpal Joints/diagnostic imaging , Osteoarthritis/diagnostic imaging , Pisiform Bone/diagnostic imaging , Triquetrum Bone/diagnostic imaging , Adult , Carpal Joints/surgery , Case-Control Studies , Female , Humans , Imaging, Three-Dimensional , Male , Middle Aged , Osteoarthritis/surgery , Pisiform Bone/surgery , Retrospective Studies , Tomography, X-Ray Computed , Triquetrum Bone/surgery , Young Adult
11.
Hand (N Y) ; 12(5): NP55-NP57, 2017 09.
Article in English | MEDLINE | ID: mdl-28832208

ABSTRACT

BACKGROUND: Aneurysmal bone cysts are an uncommon form of benign primary bone tumors; affection of the hand is very rare. METHODS: A rigorous review of the literature showed that this type of tumor has not previously been described in the pisiform. In this article, we report the occurrence of an aneurysmal bone tumor in the pisiform of the left hand of a 19-year-old male. RESULTS: This tumor was successfully treated through surgical excision with an uneventful recovery. We describe the process behind the diagnosis of the lesion and the subsequent treatment in an attempt to highlight the rare but possible occurrence of aneurysmal bone cysts in the pisiform. CONCLUSION: Appropriate treatment of aneurysmal bone cysts in this location is required, due to the anatomical nature of the pisiform itself with the risks of pathologic fracture and ulnar nerve compression.


Subject(s)
Bone Cysts, Aneurysmal/diagnostic imaging , Bone Cysts, Aneurysmal/pathology , Pisiform Bone/diagnostic imaging , Bone Cysts, Aneurysmal/surgery , Humans , Male , Pisiform Bone/surgery , Young Adult
12.
Rom J Morphol Embryol ; 58(1): 271-275, 2017.
Article in English | MEDLINE | ID: mdl-28523331

ABSTRACT

Chondrosarcoma is a malignant hyaline cartilage forming tumor. It is a rare pathology, with an estimated incidence of one in 200 000 individuals per year. It appears in two forms: primary, representing 90% of all cases and secondary emergence that develops on preexistent lesions. Primary chondrosarcomas are uncommon in the hand, with a frequency of only 1.5-3.2% of all chondrosarcomas. In conventional chondrosarcoma (cCS), the histological malignancy grading represents the main prognostic factor for surgical planning and prognosis. We present the case of a 60-year-old male, examined in the First Department of Orthopedics and Traumatology, "Dr. Pius Branzeu" Clinical Hospital, Timisoara, Romania, with non-specific symptoms in the right hand. After clinical examination and imagistics, surgery and histopathological examination of the tumor were performed. This showed a conventional well differentiated - G1 chondrosarcoma, as suggested also by imagistic and clinical context.


Subject(s)
Bone Neoplasms/pathology , Chondrosarcoma/pathology , Hamate Bone/pathology , Hand/pathology , Pisiform Bone/pathology , Bone Neoplasms/diagnostic imaging , Chondrosarcoma/diagnostic imaging , Hamate Bone/diagnostic imaging , Hand/diagnostic imaging , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Pisiform Bone/diagnostic imaging , Synovial Membrane/diagnostic imaging , Synovial Membrane/pathology
13.
Skeletal Radiol ; 46(5): 693-699, 2017 May.
Article in English | MEDLINE | ID: mdl-28229185

ABSTRACT

Hamate-pisiform coalition is an exceptional form of carpal coalition. Case reports are essential to gain a better understanding of this variant. We report a case of congenital bilateral hamate-pisiform coalition in a 20-year-old male discovered in the context of a right wrist trauma. Radiographs also revealed a bilateral scapholunate diastasis. Clinical examination and radiological findings suggested that the right wrist scapholunate diastasis was related to scapholunate instability. Left wrist scapholunate diastasis could be related to (1) a pathological feature or (2) a normal variant associated with hamate-pisiform coalition. Lateral radiographs showed a volar C-shaped osseous bridge corresponding to the coalition. We associated it with a new sign: the "carpal C-sign". Computed tomography with three-dimensional reconstruction provides helpful information about the type of coalition (osseous versus non-osseous) and excludes potential fracture. We discuss the specific embryologic features of the hamate-pisiform coalition, as well as its prevalence, radiographic classification, clinical significance, and treatment.


Subject(s)
Hamate Bone/diagnostic imaging , Ligaments, Articular/injuries , Ligaments, Articular/surgery , Pisiform Bone/diagnostic imaging , Wrist Injuries/diagnostic imaging , Adult , Carpal Bones , Contrast Media , Diagnosis, Differential , Humans , Imaging, Three-Dimensional/methods , Ligaments, Articular/diagnostic imaging , Male , Multidetector Computed Tomography/methods , Radiographic Image Enhancement/methods , Radiography/methods , Wrist Joint/diagnostic imaging , Young Adult
14.
Acta Orthop Traumatol Turc ; 50(4): 477-9, 2016 Aug.
Article in English | MEDLINE | ID: mdl-27555463

ABSTRACT

BACKGROUND: Osteoid osteoma is an uncommon benign bone-forming tumor of the musculoskeletal system but it is the most common primary bone tumor of the carpal region. However, only seven cases of its pisiform involvement have been described. CASE: We present a 19 year-old male patient with osteoid osteoma of the pisiform which initially could not be detected in any diagnostic study for long standing wrist pain. The patient was treated with excision and curettage. In 1 year of follow-up, the patient was asymptomatic without recurrence. CONCLUSION: In cases with long standing ulnar wrist pain, one should consider osteoid osteoma of the pisiform in differential diagnosis. If an OO is suspected, thin slice CT scan in initial evaluation would be valuable in preventing the patient from misdiagnosis or delay in diagnosis.


Subject(s)
Bone Neoplasms/diagnostic imaging , Bone Neoplasms/surgery , Osteoma, Osteoid/diagnostic imaging , Osteoma, Osteoid/surgery , Pisiform Bone/diagnostic imaging , Wrist Joint/surgery , Arthralgia/etiology , Humans , Magnetic Resonance Imaging , Male , Tomography, X-Ray Computed , Young Adult
16.
J Pediatr Orthop B ; 24(6): 556-60, 2015 Nov.
Article in English | MEDLINE | ID: mdl-26163866

ABSTRACT

Simultaneous fracture and dislocation of the pisiform is a rare condition, and only two cases have been reported in children. We retrospectively collected and reviewed clinical and radiographic data of a child with a type II Salter-Harris fracture of the distal radius, associated with fracture dislocation of the pisiform. In addition, we performed a systematic review of the literature available to date.


Subject(s)
Joint Dislocations/etiology , Pisiform Bone/injuries , Radius Fractures/diagnosis , Wrist Injuries/diagnosis , Child , Humans , Joint Dislocations/diagnosis , Male , Pisiform Bone/diagnostic imaging , Radiography , Retrospective Studies
17.
J Clin Ultrasound ; 42(9): 560-1, 2014.
Article in English | MEDLINE | ID: mdl-24865328

ABSTRACT

Pisiform bursitis is a disease often forgotten in both everyday practice and medical literature. The pisiform bursa is not constant; when present, it is located between the tendon of the flexor carpi ulnaris and pisiform bone. Bursitis causes pain in the medial side of the wrist and enters into the differential diagnosis of various diseases of this anatomic region, in particular, with enthesitis of the flexor carpi ulnaris and the ganglion of piso-pyramidal compartment. We present the sonographic appearance of pisiform bursitis in a symptomatic patient.


Subject(s)
Bursitis/diagnostic imaging , Pisiform Bone/diagnostic imaging , Wrist Joint/diagnostic imaging , Adult , Anti-Inflammatory Agents/therapeutic use , Bursitis/therapy , Diagnosis, Differential , Female , Humans , Rest , Ultrasonography
18.
J Hand Surg Am ; 39(7): 1251-1257.e1, 2014 Jul.
Article in English | MEDLINE | ID: mdl-24855969

ABSTRACT

PURPOSE: To evaluate wrist strength and kinematics after pisiform excision and preservation of its soft tissue confluence for pisotriquetral instability and arthritis. METHODS: We evaluated 12 patients, (14 wrists) subjectively and objectively an average of 7.5 years after pisiform excision. Three additional patients were interviewed by phone. Subjective evaluation included inquiry about pain and satisfaction with the treatment. Objective testing included measuring wrist flexion and extension range of motion, grip strength, and static and dynamic flexion and ulnar deviation strengths of the operative hand compared with the nonsurgical normal hand. Four patients had concomitant ulnar nerve decompression at the wrist. RESULTS: All patients were satisfied with the outcome. Wrist flexion averaged 99% and wrist extension averaged 95% of the nonsurgical hand. Mean grip strength of the operative hand was 90% of the nonsurgical hand. Mean static flexion strength of the operative hand was 94% of the nonsurgical hand, whereas mean dynamic flexion strength was 113%. Mean static ulnar deviation strength of the operative hand was 87% of the nonsurgical hand. The mean dynamic ulnar deviation strength of the operative hand was 103% of the nonsurgical hand. CONCLUSIONS: Soft tissue confluence-preserving pisiform excision relieved pain and retained wrist motion and static and dynamic strength. Associated ulnar nerve compression was a confounding factor that may have affected outcomes. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.


Subject(s)
Arthritis/surgery , Joint Instability/surgery , Patient Satisfaction/statistics & numerical data , Pisiform Bone/surgery , Range of Motion, Articular/physiology , Adolescent , Adult , Aged , Arthritis/etiology , Arthritis/rehabilitation , Confidence Intervals , Female , Hand Strength/physiology , Humans , Injury Severity Score , Joint Instability/etiology , Joint Instability/rehabilitation , Male , Middle Aged , Osteotomy/adverse effects , Osteotomy/methods , Pisiform Bone/diagnostic imaging , Pisiform Bone/injuries , Radiography , Recovery of Function , Retrospective Studies , Surveys and Questionnaires , Time Factors , Wrist Injuries/complications , Wrist Injuries/diagnostic imaging , Wrist Injuries/surgery
19.
Arch Orthop Trauma Surg ; 134(7): 1017-22, 2014 Jul.
Article in English | MEDLINE | ID: mdl-24760278

ABSTRACT

Proximal row carpectomy (PRC) is an established surgical procedure used to treat post-traumatic osteoarthritis of the wrist with sparing of the midcarpal joint and advanced aseptic necrosis such as lunatomalacia. Proximalization of the distal carpal row following PRC may lead to secondary problems such as radiocarpal impingement. At follow-up, two of our patients complained about ulnar-sided wrist pain after proximal row carpectomy. Computed tomography (CT) scans were taken for both patients with an additional magnetic resonance imaging scan for one patient. The CT scan revealed clear osteolysis consistent with a pisiform bone impingement on the ulnar styloid process in both the cases, and also on the hamate in one patient. An impingement syndrome of this nature has not previously been described and should be kept in mind when patients report ulnocarpal symptoms after PRC.


Subject(s)
Carpal Bones/surgery , Joint Diseases/etiology , Osteoarthritis/surgery , Pisiform Bone/surgery , Wrist Joint/surgery , Carpal Bones/diagnostic imaging , Hamate Bone , Humans , Joint Diseases/diagnostic imaging , Magnetic Resonance Imaging , Male , Middle Aged , Osteoarthritis/diagnostic imaging , Osteolysis/diagnostic imaging , Pisiform Bone/diagnostic imaging , Postoperative Complications/diagnostic imaging , Postoperative Complications/surgery , Range of Motion, Articular , Tomography, X-Ray Computed , Ulna/diagnostic imaging , Wrist Joint/diagnostic imaging
20.
Skeletal Radiol ; 43(6): 761-73, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24687844

ABSTRACT

Pisotriquetral joint disorders are often under-recognized in routine clinical practice. They nevertheless represent a significant cause of ulnar side wrist pain. The aim of this article is to present the main disorders of this joint and discuss the different imaging modalities that can be useful for its assessment.


Subject(s)
Diagnostic Imaging/methods , Fractures, Bone/diagnosis , Joint Diseases/diagnosis , Pisiform Bone/diagnostic imaging , Pisiform Bone/injuries , Wrist Injuries/diagnosis , Diagnosis, Differential , Fractures, Bone/complications , Humans , Joint Diseases/complications , Pisiform Bone/pathology , Radiography
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