Functional patterns of thumb key pinch and their influence on thumb strength and stability

  title={Functional patterns of thumb key pinch and their influence on thumb strength and stability},
  author={Vicenç Punsola-Izard and Diana Salas-G{\'o}mez and Enric Sirvent-Rivalda and Jordi Esquirol-Caussa},
  journal={Hand Therapy},
  pages={78 - 86}
Introduction Trapeziometacarpal osteoarthritis (TMC OA) is a common condition frequently related to instability and hypermobility. Many factors are involved in the development of this degenerative process. Recent research suggests that the position of the metacarpophalangeal (MCP) joint may influence TMC joint contact wear patterns and subsequent development of OA. The aim of this study is to explore the alignment of the MCP joint of the thumb during lateral pinch in order to describe the… Expand
Clinical evaluation of thumb base osteoarthritis: A scoping review
The tests and measures specific to the basal thumb OA phenotype, and capable of isolating its multifactorial contributors are scarce, and this paper identifies gaps in the ability to capture the thumb’s unique attributes and how they could impact the treatment recommendations. Expand
3D modelling and tissue-level morphology of trapeziometacarpal joint
The results revealed that the PIML and DIML were the main stabilizers through the experiments, and the DUTML and PUTML served as associated ligaments to prevent TMC joint dislocation. Expand
Normative data for the Baseline® 5 position hydraulic pinch meter and the relationship between lateral pinch strength and pinch span.
  • N. Hock, D. Lindstrom
  • Medicine, Psychology
  • Journal of hand therapy : official journal of the American Society of Hand Therapists
  • 2020
The meter showed an excellent inter-rater reliability with an intraclass correlation = .98 and indicated the pinch span that produced the greatest amount of force was not consistent with previous literature. Expand
Isometric thumb exertion induces B cell and T cell lymphocytosis in trained and untrained males: Physical aptitude determines response profiles
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As exercise intensity and duration positively regulate the leukocytes responses to resistance-exercise, low-dose protocols should be studied to determine leukocyte sensitivity and the recovery implications associated with small muscle-group exertion. Expand
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Both splints appear to reduce subluxation at the first CMC joint in patients with grades 1 and 2 osteoarthritis, and the majority of the patients picked the short splint when asked at the end of the study which splint they preferred. Expand
Contact areas in the thumb carpometacarpal joint
The results of this study indicate that the lateral pinch position produced stresses in the same regions where cartilage thinning was observed; this lends support to the hypothesis that high stresses can lead to osteoarthritis in this joint. Expand
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It is proposed that a hypermobile metacarpophalangeal joint may have a causative role in the development of primary osteoarthritis at the base of the thumb by concentrating forces on the palmar aspect of the trapeziometacarpal joint. Expand
The trapeziometacarpal joint. Tenotomy of the accessory tendons in early osteoarthritis.
Osteoarthritic thumbs in stages I and II that have failed to respond to conservative treatment are candidates to unload the joint by tenotomy of the transarticular accessory tendons, and long-term results have been very satisfactory, eliminating or substantially reducing pain and returning patients to their activity. Expand
Effects of the deep anterior oblique and dorsoradial ligaments on trapeziometacarpal joint stability.
In most degrees of freedom of metacarpal movement relative to the trapezium, the DRL is relatively more important than the dAOL in providing stability to the TMC joint. Expand
Contact patterns in the trapeziometacarpal joint: the role of the palmar beak ligament.
The contact patterns in the normal and diseased trapeziometacarpal joint are defined and the important influence of the palmar beak ligament on those contact areas are established. Expand
Restoration of Dynamic Stability in Early Osteoarthritis of the Carpometacarpal Joint of the Thumb
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Sequential wear patterns of the articular cartilage of the thumb carpometacarpal joint in osteoarthritis.
These quantitative results on cartilage thinning agree with previous investigators' reports of high load bearing and low load bearing areas in the CMC joint during functional pinch and grasp positions and may aid in the surgical treatment of this disease. Expand
Splint for Base-of-Thumb Osteoarthritis
Nighttime splinting for base-of-thumb osteoarthritis had no effect compared with usual care after 1 month, but it clinically significantly reduced patients' pain and disability after 12 months. Expand
Functional anatomy of the carpometacarpal joint of the thumb.
  • J. Kauer
  • Medicine
  • Clinical orthopaedics and related research
  • 1987
To analyze the motion patterns of the first metacarpal with regard to the trapezium, models were proposed based on the principles of regularly curved joint surfaces but it has been acknowledged that irregularly curved surfaces attuned to a specifically shaped ligamentous system offer the morphologic basis for understanding mobility at the base of the thumb. Expand