Term
| what are the 4 joints of the elbow and forearm? |
|
Definition
| humeroulnar, humeroradial, proximal radioulnar, distal radioulnar |
|
|
Term
| what type of joints are humeroulnar and radial? How many dof? |
|
Definition
|
|
Term
| what type joints are prox/dist radioulnar? How many dof? |
|
Definition
|
|
Term
| is the elbow joint stable? |
|
Definition
|
|
Term
| what are the roles of the elbow complex? |
|
Definition
| provide mobility for hand by adjusting arm length, assist shoulder in application of forces |
|
|
Term
| what is the true elbow joint? |
|
Definition
|
|
Term
| why is the humeroulnar joint the true elbow joint? |
|
Definition
| this is where we get articulation |
|
|
Term
| what gives humeroulnar joint stability? |
|
Definition
| bony puzzle pieces that fit together: olecranon/olecranon fossa, coronoid process/coronoid fossa, trochlear notch/trochlea |
|
|
Term
| what gives humeroulnar joint mobility? |
|
Definition
| large surface area: trochlea spans 300 deg |
|
|
Term
| which trochlea projects further distally? |
|
Definition
| medial side of trochlea is more distal than lateral trochlea |
|
|
Term
| what is the poser elbow joint? |
|
Definition
|
|
Term
| what are the articulatoins of humeroradial? |
|
Definition
| head of radius, capitulum of humerus |
|
|
Term
| does the humeroradial joint provide bony stability to the elbow? |
|
Definition
|
|
Term
| what is the fovea of the radius? |
|
Definition
|
|
Term
| what does the humeroradial joint do? |
|
Definition
| provides a bony block to valgus motion at elbow |
|
|
Term
|
Definition
| angle between midlines of humerus and forearm with elbow in extension |
|
|
Term
| what is the average carrying angle? |
|
Definition
|
|
Term
| what is function of carrying angle |
|
Definition
| helps clear hand away from body; you can carry a load without it running into your thigh |
|
|
Term
| what causes cubital valgus? |
|
Definition
| medial side of trochlea is more distal than lateral trochlea.forearm lines up with slanted humerus |
|
|
Term
| what happens to forearm when you flex? |
|
Definition
|
|
Term
| what joints are in the elbow capsule? |
|
Definition
| humeroulnar, humeroradial, proximal radioulnar |
|
|
Term
|
Definition
|
|
Term
| what are the weakest parts of elbow capsule? |
|
Definition
|
|
Term
| what reinforces elbow capsule medial/laterally? |
|
Definition
|
|
Term
| what are the ligaments of the elbow? |
|
Definition
| annular, medial/ulnar collateral ligament, lateral/radial collateral ligament |
|
|
Term
| why is the elbow capsule weak ant/post? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| what are the 3 parts of the medial collateral ligament? |
|
Definition
| anterior, posterior transverse |
|
|
Term
|
Definition
| primary restraint to valgus stress |
|
|
Term
|
Definition
| weak restraint to valgus stress |
|
|
Term
|
Definition
| assists with restraint to valgus stress |
|
|
Term
| when is valgus force greatest? |
|
Definition
| neutral supination pronation (like pitching) |
|
|
Term
| when does MCL work the hardest? |
|
Definition
| neutral supination pronation (like pitching) |
|
|
Term
| does MCL work more in extension or in flexion? |
|
Definition
|
|
Term
| when is the anterior bundle of MCL tightest? |
|
Definition
|
|
Term
| when is the posterior bundle of MCL tightest? |
|
Definition
|
|
Term
| besides MCL, what else helps restrain valgus? |
|
Definition
| portions of capsule + bony contact between radius and humerus |
|
|
Term
|
Definition
| resist varus force, assist with resisting distraction, supports annular ligament, helps restrain excessive supination |
|
|
Term
| what does annular ligament do? |
|
Definition
|
|
Term
| what is nursemaid's elbow |
|
Definition
| radius comes out of annular ligament |
|
|
Term
| what is close packed elbow position? |
|
Definition
|
|
Term
| loose packed elbow position |
|
Definition
| 70 deg flexion, 10 deg supination |
|
|
Term
| where is elbow most stable |
|
Definition
|
|
Term
| where are ligaments and bony structures best at resisting varus? |
|
Definition
|
|
Term
| what provides resistance to distraction? |
|
Definition
|
|
Term
| what is most unstable position of elbow |
|
Definition
|
|
Term
| arthrokinematics of elbow in flexion |
|
Definition
| concave ulna rolls and slides anteriorly on convex humerus |
|
|
Term
| arthrokinematics of elbow in extension |
|
Definition
| concave ulna rolls and slides posteriorly on convex humerus |
|
|
Term
| arthrokinematics of pushup at humeroulnar joint |
|
Definition
| convex on concave: humerus rolls and glides in opposite directions |
|
|
Term
| what are the primary flexors of the elbow? |
|
Definition
|
|
Term
| what is the secondary flexor of the forearm and when does it work best? |
|
Definition
| brachioradialis, in mid position |
|
|
Term
| what are the elbow extensor muscles? |
|
Definition
|
|
Term
| how does triceps act as synergist in forceful supination? |
|
Definition
| prevents biceps from flexing elbow as it supinates |
|
|
Term
| what is the proximal radioulnar joint? |
|
Definition
| head of radius fits into radial notch of ulna |
|
|
Term
| what type of joint is proximal radioulnar, how many dof |
|
Definition
|
|
Term
| what ligament stabilizes proximal radioulnar joint and guides accessory motion? |
|
Definition
|
|
Term
| what are the articulations of distal radioulnar? |
|
Definition
| ulnar notch, articular disc, head of ulna |
|
|
Term
| where is compression through forearm initially loaded |
|
Definition
|
|
Term
| how is force from radius transmitted to ulna |
|
Definition
| through interosseous membrane |
|
|
Term
| where is the higher load of force in proximal forearm? |
|
Definition
|
|
Term
| total rom of pronation/supinatoin |
|
Definition
|
|
Term
| what is the functional ROM of supination/pronation |
|
Definition
| 50 deg in either direction |
|
|
Term
| why is supination/pronation assessed with elbow flexed to 90 deg |
|
Definition
| avoid internal/external rotation from shoulder |
|
|
Term
| at radioulnar joints, is radius convex or concave? |
|
Definition
|
|
Term
| arthrokinematics of supination |
|
Definition
| concave radius rolls and glides posteriorly on convex ulna |
|
|
Term
| arthrokinematics of pronation |
|
Definition
| concave radius rolls and glides superiorly on convex ulna |
|
|
Term
| arthrokinematics of pronation in terms of ulna |
|
Definition
| convex ulna rolls anteriorly and slides posteriorly on concave radius |
|
|
Term
| arthrokinematics of supination in terms of ulna |
|
Definition
| convex ulna rolls posteriorly and slides anteriorly on concave radius |
|
|
Term
|
Definition
| pronator teres, pronator quadratus |
|
|
Term
| how does pronator teres affect superior radioulnar joint? |
|
Definition
| pronator teres compresses superior radioulnar joint |
|
|
Term
| how does pronator quadratus affect distal radioulnar joint? |
|
Definition
| pronator quadratus helps maintain stability on distal radioulnar joint through compression |
|
|
Term
| where is biceps brachii most effective at supination |
|
Definition
|
|
Term
| what other muscles provides supination at all positions of elbow or forearm? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| what also looks like lateral epicondylitis with lateral forearm pain? |
|
Definition
| radial nerve entrapment/radial tunnel syndrome |
|
|
Term
| what is ulnar nerve entrapment called? |
|
Definition
|
|
Term
|
Definition
| optimize length-tension relationships of external finger flexors/extensors; help manipulate location of hand/fingers |
|
|
Term
| what are the 3 joints of the wrist? |
|
Definition
| radiocarpal, midcarpal, carpometacarpal |
|
|
Term
| how is the radius angled in the frontal plane? |
|
Definition
|
|
Term
| how is radius angled in sagittal plane? |
|
Definition
|
|
Term
| what is the shape of the radius medial-laterally and anterior-posteriorly? |
|
Definition
|
|
Term
| what fills the space between distal radius and ulna? |
|
Definition
| fibrocartilaginous disc: triangular fibrocartilage complex |
|
|
Term
| which bone makes most contact with carpal bones? |
|
Definition
|
|
Term
| what does the radius's angle towards ulna mean? |
|
Definition
| more ulnar deviation than radial deviation |
|
|
Term
| what does radius's angle towards palm mean? |
|
Definition
| more flexion than extension |
|
|
Term
| functions of triangular fibrocartilage complex |
|
Definition
| extension of distal radius, articulates with triquetrum, receivs about 20% of axial load |
|
|
Term
|
Definition
| scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate |
|
|
Term
| describe structure of triangular fibrocartilage complex |
|
Definition
| radioulnar disc, dorsal and palmar radioulnar ligaments, ties into sheath around extensor carpi ulnaris tendon |
|
|
Term
| describe radioulnar disc that is part of triangular fibrocartilage complex |
|
Definition
| fibrocartilaginous extension of the articular cartilage from the radius |
|
|
Term
| is scaphoid medial or lateral? |
|
Definition
|
|
Term
| is trapezium lateral or medial? |
|
Definition
|
|
Term
| 60% of all carpal fractures are to what bone? |
|
Definition
|
|
Term
| what causes scaphoid fractures? |
|
Definition
| forceful hyperextension of wrist |
|
|
Term
| what is a factor in scaphoid healing |
|
Definition
|
|
Term
| how are proximal or distal scaphoid fractures treated? |
|
Definition
|
|
Term
| where is there more vascularization of scaphoid? |
|
Definition
| on thumb side (laterally) than on wrist side (medially) |
|
|
Term
| what do extrinsic wrist ligaments do? |
|
Definition
| connect carpals to radius/ulna or metacarpals |
|
|
Term
| do palmar or dorsal wrist ligaments provide more stability? |
|
Definition
|
|
Term
| do you bear weight in wrist flexion or extension |
|
Definition
|
|
Term
| what are the palmar wrist ligaments |
|
Definition
| radial collateral, ulnar collateral, palmar radiocarpal |
|
|
Term
| what is the dorsal wrist ligament? |
|
Definition
|
|
Term
| what do intrinsic wrist ligaments do? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| what are palmar surface intrinsic wrist ligaments? |
|
Definition
| transverse carpal, lunotriquetral, scapholunate |
|
|
Term
| what are dorsal surface intrinsic wrist ligaments? |
|
Definition
|
|
Term
| what causes carpal instability? |
|
Definition
|
|
Term
| what are 2 common types of carpal instability? |
|
Definition
| translocation of the carpus, rotational collapse |
|
|
Term
| what happens in translocation of the carpus? |
|
Definition
|
|
Term
|
Definition
| Rheumatoid Arthritis: ulnar drift |
|
|
Term
| what causes rotational collapse? |
|
Definition
|
|
Term
| in rotational collapse, what does scaphoid want to do? |
|
Definition
|
|
Term
| what direction does lunate naturally want to go into? |
|
Definition
|
|
Term
| if the connection between scaphoid and lunate is ruptured in rotational collapse, what happens? |
|
Definition
| scaphoid flexes and lunate extends (lunate goes to dorsal side = dorsal intercalated segment instability = DISI) |
|
|
Term
| if lunate and scaphoid stay connected, what happens during rotational collapse? |
|
Definition
| volar intercalated segment instability = VISI; lunate goes to palmar side |
|
|
Term
| primary extrinsic extensors |
|
Definition
| extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris |
|
|
Term
| secondary extrinsic extensors |
|
Definition
| extensor digitorum, extensor indicis, extensor digiti minimi, extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus |
|
|
Term
| what are the primary extrinsic flexors of the wrist? |
|
Definition
| flexor carpi radialis, flexor carpi ulnaris, palmaris longus |
|
|
Term
| what are the secondary extrinsic flexors of the wrist? |
|
Definition
| flexor digitorum profundus and superficialis, flexor pollicis longus |
|
|
Term
| what goes through the carpal tunnel? |
|
Definition
| 4 FDP, 4 FDS, Flexor pollicis longus, flexor carpi radialis, median nerve |
|
|
Term
| what is the distribution of the median nerve? |
|
Definition
|
|
Term
| what type of joint is the wrist? |
|
Definition
|
|
Term
| how many dof in an ellipsoid joint? |
|
Definition
|
|
Term
| osteokinematics of wrist joint |
|
Definition
|
|
Term
| where does motion occur in wrist joint? |
|
Definition
| radiocarpal joint, midcarpal joint, minimal motion at carpo-metacarpal joint |
|
|
Term
| where is axis of rotation of wrist? |
|
Definition
|
|
Term
| is the proximal row of carpals convex or concave at the radiocarpal joint? |
|
Definition
|
|
Term
| is the radius convex or concave at the radiocarpal joint? |
|
Definition
|
|
Term
| describe the arthrokinematics of extension at the radiocarpal joint |
|
Definition
| convex carpals roll dorsally, slide palmarly |
|
|
Term
| describe what the radius does at the radiocarpal joint in extension |
|
Definition
| concave radius slides dorsally |
|
|
Term
| are the distal carpals convex or concave at the midcarpal joint? |
|
Definition
|
|
Term
| are the proximal carpals convex or concave at the mid-carpal joint? |
|
Definition
|
|
Term
| what are the arthrokinematics of extension at the midcarpal joint? |
|
Definition
| convex distal carpals roll dorsally, slide palmarly |
|
|
Term
| what are the arthrokinematics of extension at the midcarpal joint in terms of proximal row? |
|
Definition
| concave proximal carpals slide dorsally |
|
|
Term
| where is close packed position for radiocarpal and midcarpal joints? |
|
Definition
|
|
Term
| arthrokinematics of flexion at radiocarpal joint |
|
Definition
| convex carpals roll palmarly, slide dorsally |
|
|
Term
| arthrokinematics of flexion at radiocarpal joint in terms of radius |
|
Definition
|
|
Term
| arthrokinematics of flexion at midcarpal joint |
|
Definition
| convex distal carpals roll palmarly, slide dorsally |
|
|
Term
| arthrokinematics of flexion at midcarpal joint in terms of proximal caprals |
|
Definition
| concave proximal carpals slide palmarly |
|
|
Term
| in arthrokinematics, are rolls or slides the same for concave and convex? |
|
Definition
| rolls are the same direction; slides are opposite |
|
|
Term
| is wrist more stable in flexion or extension? |
|
Definition
|
|
Term
| do we get more midcarpal joint movement in flexion or extension? |
|
Definition
|
|
Term
| do we get more radiocarpal joint movement in flexion or in extension? |
|
Definition
|
|
Term
| arthrokinematics of radial deviation at radiocarpal joint? |
|
Definition
| carpals roll radially, glide ulnarly |
|
|
Term
| arthokinematics of radial deviation at midcarpal joint |
|
Definition
| distal carpals roll radially, glide ulnarly |
|
|
Term
| what limits radial deviation? |
|
Definition
|
|
Term
| arthrokinematics of ulnar deviation at radioulnar joint |
|
Definition
| carpals roll ulnarly, glide radially |
|
|
Term
| arthrokinematics of ulnar deviation at midcarpal joint |
|
Definition
| distal carpals roll ulnarly, glide radially |
|
|
Term
| what do muscles on anterior side of hand do? |
|
Definition
|
|
Term
| what do muscles on posterior side of hand do? |
|
Definition
|
|
Term
| what do muscles on lateral side of hand do? |
|
Definition
|
|
Term
| what do muscles on medial side of hand do? |
|
Definition
|
|
Term
| what causes Colles fracture |
|
Definition
|
|
Term
| what breaks in colles fracture |
|
Definition
| distal radius, usually displaces dorsally |
|
|
Term
| what are the joints of the hand |
|
Definition
| carpometacarpal, metacapalphalangeal, interphalangeal |
|
|
Term
| shape of metacarpals/phalanges |
|
Definition
| proximal concave base, shaft distal convex head |
|
|
Term
| what kind of joints are carpo-metacarpal joints? Dof? |
|
Definition
|
|
Term
| what are the movements of carpometacarpal joints? |
|
Definition
| flex/ext if anything, some abd/add in 5th CMC |
|
|
Term
| which 2 CMC joints have no movement? |
|
Definition
|
|
Term
| what does mobility of 4th, 5th CMC do? |
|
Definition
|
|
Term
| where are there ligaments in the CMC joints? |
|
Definition
| between bases of metacarpals and between base of metacarpals and distal carpals |
|
|
Term
| are the CMC ligaments stronger on palmar or dorsal side? |
|
Definition
|
|
Term
| what is the proximal transverse arch? |
|
Definition
| arch of the base of the metacarpals |
|
|
Term
| what is the distal transverse arch |
|
Definition
| arch of the heads of the metacarpals |
|
|
Term
| what is the longitudinal arch? |
|
Definition
| arch that centers at midline of hand |
|
|
Term
| what kinds of joints are metacarpal-phalangeal joints? |
|
Definition
|
|
Term
| how many dof in MCP joints? |
|
Definition
|
|
Term
| how does base of phalanx comare to head of metacarpal? |
|
Definition
| base of phalanx is smaller than head of metacarpal |
|
|
Term
| which MCP has the most ROM? |
|
Definition
|
|
Term
| which MCP has the least ROM? |
|
Definition
|
|
Term
| what is close packed MCP? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| increase joint congruence and articular surface, resist hyperextension, prevent "pinching" of flexor tendons |
|
|
Term
| what are the ligaments of the MCP? |
|
Definition
|
|
Term
| when are MCP collateral ligaments taut? |
|
Definition
|
|
Term
| how is MCP immobilized and why? |
|
Definition
| 60-70 deg flexion to prevent shortening of collateral ligaments |
|
|
Term
| at MCP, is metacarpal head convex or concave? |
|
Definition
|
|
Term
| at MCP, is proximal phalanx convex or concave? |
|
Definition
|
|
Term
| in fingers, how does distal part move on proximal part? |
|
Definition
| concave distal phalanx rolls/slides in same direction on convex proximal phalanx or convex metacarpal head |
|
|
Term
| what type of joints are interphalangeal joints? |
|
Definition
|
|
Term
| how are IP joints similar to MCP joints? |
|
Definition
| volar plates, collateral ligaments, concave moves on convex |
|
|
Term
| what is the concern in immobilizing IP joints? |
|
Definition
| finger flexor tendons; immobilize in extension |
|
|
Term
| what is coupled motion of DIP and PIP joints? |
|
Definition
| hard to flex one without flexing the other |
|
|
Term
| what are the extrinsic finger flexors? |
|
Definition
| flexor digitorum profundus and superficialis |
|
|
Term
| what does flexior digitorum superficialis flex? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| are extrinsic flexors or extensors stronger? |
|
Definition
|
|
Term
| how many annular pulleys on each finger? |
|
Definition
|
|
Term
| which annular pulleys are most important? |
|
Definition
|
|
Term
| how many cruciate pulleys on each finger? |
|
Definition
|
|
Term
| what reduces friction of finger flexors? |
|
Definition
| bursa at flexor retinaculum, digitil tendon sheaths |
|
|
Term
| what happens if you have bowstringing in finger? |
|
Definition
| can't go through full ROM |
|
|
Term
| what are the extrinsic finger extensors? |
|
Definition
| extensor digitorum, extensor indicis, extensor digiti minimi |
|
|
Term
| what do intrinsic muscles of hand insert into? |
|
Definition
|
|
Term
|
Definition
| extend IP joints, assist with MCP flexion |
|
|
Term
| action of palmar interosseous |
|
Definition
| adduct fingers, flex MCP joints, extend IP joints |
|
|
Term
| action of dorsal interossei |
|
Definition
| abduct fingers, flex MCP, extend IP |
|
|
Term
| what happens to fully extend fingers? |
|
Definition
| intrinsics flex MCP, extend IP. Extrinsic extensors extend MCP. |
|
|
Term
| what happens in closing hand |
|
Definition
| intrinsics flex MCP, extend IP. Extrinsic flexors flex IP |
|
|
Term
| where is grip strength strongest and why? |
|
Definition
| slight extension: reduce active insufficiency of flexors |
|
|
Term
|
Definition
| a person with quadriplegia who has C6 working will have wrist extension with extensor carpi radialis longus. When your wrist is extended, your fingers close. They can close hand around something by extending wrist |
|
|
Term
| what kind of joint is the carpometacarpal joint of the thumb? |
|
Definition
|
|
Term
| what are the movements of the thumb's CMC joint? |
|
Definition
| flex/ext + abd/add = opposition/reposition |
|
|
Term
| what movements combine to opposition? |
|
Definition
|
|
Term
| what movements combine to reposition? |
|
Definition
|
|
Term
| what is the CMC joint of the thumb? |
|
Definition
| trapezium and base of 1st metacarpal |
|
|
Term
| when is the trapezium convex? |
|
Definition
|
|
Term
| when is the trapezium concave? |
|
Definition
|
|
Term
| when is the base of 1st metacarpal convex? |
|
Definition
|
|
Term
| when is the base of 1st metacarpal concave? |
|
Definition
|
|
Term
| where is the CMC joint of thumb open packed? |
|
Definition
| midway between flex/ext and abd/add |
|
|
Term
| where is cmc of thumb close packed? |
|
Definition
|
|
Term
| arthrokinematics of flex/ext at CMC thumb |
|
Definition
|
|
Term
| arthrokinematics of cmc thumb in abd/add |
|
Definition
|
|
Term
| arthrokinematics of all joints in fingers except cmc thumb in abd/add |
|
Definition
|
|
Term
| arthrokinematics of exension at CMC thumb |
|
Definition
| concave 1st met rolls and slides laterally |
|
|
Term
| arthrokinematics of cmc thumb in abduction |
|
Definition
| convex 1st met rolls and slides in opposite directions |
|
|
Term
| is the CMC thumb susceptible to OA |
|
Definition
|
|
Term
| how many pounds of compression at CMC for each pound of pinch? |
|
Definition
|
|
Term
| what kind of joint is MCP joint of thumb? |
|
Definition
|
|
Term
| how many dof of MCP thumb? |
|
Definition
|
|
Term
| arthrokinematics of IP, MCP joints of thumb: |
|
Definition
| concave on convex, roll and slide in same direction |
|
|
Term
|
Definition
| flexor pollicis longus, extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus |
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Term
| intrinsic thumb muscles in the thenar eminence |
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Definition
| abductor pollicis brevis, flexor pollicis brevis, opponens pollicis, 1st palmar interossei, adductor pollicis |
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|
Term
| what things are in anatomical snuffbox? |
|
Definition
| radial artery, radial nerve, scaphoid |
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|
Term
| best position for wrist in hand immobilization |
|
Definition
| wrist 20-30 deg ext, slight ulnar deviation. If we flex/extend too far, we'll have shortening |
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|
Term
| best position for MCP in hand immobilization |
|
Definition
| flex so that we don't lose ROM of collateral ligaments, which stretch in flexion |
|
|
Term
| best position of IP in immobilization |
|
Definition
| straight to prevent shortening of extrinsic flexors |
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|
Term
| what is sacrificed by immobilizing hand with flexed MCP and extended IP |
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Definition
|
|
Term
| what is best position for thumb in hand immobilization |
|
Definition
| open packed: 45 deg abduction |
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Term
|
Definition
|
|
Term
| what is holding a cell hone |
|
Definition
|
|
Term
| what is carrying a suit case |
|
Definition
|
|
Term
|
Definition
|
|
Term
| what is holding a cigarette |
|
Definition
|
|
Term
| what is precision handling |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| what causes swan neck deformity |
|
Definition
| volar plate disruption at PIP: lateral bands sublux dorsally, increasing moment arm of the intrinsics to extend PIP |
|
|
Term
| what is the joint position of swan neck deformit |
|
Definition
| PIP extension, DIP flexion |
|
|
Term
| how is swan neck deformity treated |
|
Definition
|
|
Term
| what happens in boutonniere deformity |
|
Definition
| central band ruptures, lateral band slip to palmar side of PIP |
|
|
Term
| joint position in boutonniere deformity |
|
Definition
| PIP flexed, DIP hyper extended |
|
|
Term
| how is boutonniere deformity fixed |
|
Definition
|
|
Term
| what are zig zag deformities? |
|
Definition
| swan neck in one finger, boutonniere in the next |
|
|
Term
|
Definition
| unable to extend DIP bc terminal band ruptures |
|
|
Term
| what is the mechanism of injury for mallet finger? |
|
Definition
| forced DIP flexion, laceration, compression |
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