3
VOL. 70-B, No. 4, AUGUST 1988 64 9 COLLES FRACTURE: DOES THE ANATOMICAL RESULT AFFE#{128}TTHE FINAL FUNCTION? MARGARET MCQUEEN, JEANETTE CASPERS From the Princess Margaret Rose Orthopaedic Hospital, Edinburgh Thirty patients who had sustained a Colles’ fracture at least four years previously were examined functionally and radiographically. Seventeen had a good radiological result and 13 were c nsidered to have malunion. Functionally the displaced group performed significantly worse than the undisplaced group. We conclude that malunion of a Colles’ fracture results in a weak, deformed, stiff and probably painful wrist. A Colles’ fracture is one of the most common fractures encountered by the orthopaedic surgeon, and at times one of the most challenging. Since it was first described by Abraham Colles in 1814, there has been continuing controversy about the b st method of treatment. A central issue throughout has been the relationship between the final anatomical and the final functional result. In 1950, Cassebaum stated that few patients had pain more than a year after a Colles’ fracture even in the presenc of onsiderable deform ty, and that no person who had a Colles’ fracture more than five years old had any serious functional complaints. This optimism has been echoed by some authors (Mason 1953 ; Older, Stabler and Cassebaum 1965; Benjamin 19 2) and challenged by others (Frykman 1967; Saito and Shibata 1983; Melone 1986). Most of these opinions have been based on either subjective r single objective tests of hand and wrist function. This paper aims to assess objectively the functional results of Colles’ fractures in relation to the final anatomical results. MATERIALS AND METHODS Thirty patients who had sustained a Colles’ fracture at least four years previously were reviewed. None had radiological extension of the fracture into the radiocarpal joint. There were 29 women and one man with an age range of 56 to 86 years (mean 69 years). All had sustaine M. McQueen, FRCS, Lecturer J. Caspers, BS, OTR, Senior Occupational The apist Princess Margaret Rose Orthopaedic Hospital, Fairmilehead, Edin- burgh EH1O 7ED, Scotland. Correspondence should be sent to Miss M. McQueen. © 1 88 British Editorial Society of Bone and Joint Surgery 0301-620X/88/4135 $2.00 J Bone Joint Surg [Br] 1988;70-B:649-5l. their fracture by a fall on to the outstretched hand and had undergone similar initial treatment by manipulation under regional anaesthesia and immobilisation in a forearm plaster for five to six weeks. Follow-up ranged from four years to six years nine months (mean five years one month). Thirteen patients had fract red the domi- nant and 1 7 the non-dominant wrist. Standard anteroposterior and lateral radiographs of both wrists were taken and measurements of dorsal ngulation and radial shift were recorded (Van Der Linden and Ericson 1981). On the basis of these measurements the 30 patients were divided into two groups. Group 1 included the patients whose fractures united with 10#{176} r less of dorsal angulation and less than 2 mm of radial shift. There were 17 patients in this group, 16 women and one man their average age being 67 years. Group 2 included 13 patients with dorsal angulation ranging from 12#{176} o 3 4# { 17 6 } nd more than 2 mm of radial shift. All were women and their mean age was 71 years. The function of both hands and wrists was tested by one aut or (JC), who had no prior knowledg of the radiological measurements. The tests used were based on a recent review of assessment of hand function (Dent, Smith and Caspers 1985). Grip strength wa ssessed using the Jamar dyna- mometer (Bechtol 1954) and the Musur-Grieve spring balance (Musur-Grieve 1984) with nterchangeable handles to allow assessment of hook, cylinder, key chuck and pinch grips. Grip endurance was tested on the latter apparatus using the hook grip. Manual dexterity was assessed using the Jebsen test (Jebsen et al. 1969) supplemented by the Moberg test performed with the eyes open (Moberg 1956). The ability to perform both unilateral and bilateral activities of daily living such as lifting weights, turning keys, using scissors, etc., was assessed and scored according to the amount of difficulty in performing these activities (Sheehan, Sheldon and Marks 1983). The range

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VO L. 70 -B , N o. 4 , A UG UST 1988 64 9

COLLES FRACTURE : DOES THE ANATOM ICAL RESULT

AFFE#{128}T THE FINAL FUNCT ION ?

MARGARET M CQUEEN , JEANETTE CASPERS

F rom the Pr incess M argare t Ro se O rth opa ed ic H o sp ita l, E d in burgh

Thir ty patien ts w ho had su sta in ed a C o lles ’ frac tu re a t least fo u r years p rev iou sly w ere exam in ed

fun c tio na lly and rad io graph ica lly . S even teen had a good rad io log ica l re su lt and 13 w ere con sid ered to hav e

m alu n ion . F un ctio na lly th e d isp laced grou p perfo rm ed sign ifican tly w o rse than th e und isp la ced g roup . W e

conc lude tha t m a lun ion of a C o lle s ’ fra ctu re resu lts in a w eak , d efo rm ed , s tiff an d probab ly p a in fu l w ris t.

A C olle s’ frac tu re is o ne o f the m ost com m on frac tu res

encoun te red by the ortho paed ic surgeon , an d a t tim es

on e of th e m ost cha lleng in g . S in ce it w as firs t de sc rib ed

by A braham C olles in 1814 , th ere has been con tin u ing

con troversy abou t the best m etho d of trea tm ent. A

cen tra l is sue th roughou t has been the re la tio nsh ip

b etw een the fin al ana tom ical an d the fina l func tion al

resu l t .

In 19 50 , C asseb aum stated tha t few p a tien ts had

pa in m ore than a year a fte r a C olles’ frac tu re even in the

p re sence o f co nsid erab le de fo rm ity , and tha t no pe rso n

w ho h ad a C olle s’ fractu re m o re than fiv e yea rs o ld h ad

any serious func tiona l com pla in ts. T his o p tim ism has

b een echo ed by som e au tho rs (M ason 1953 ; Old e r ,

S tab le r and C assebaum 1965 ; B en jam in 1982 ) an d

ch allenged by o thers (F rykm an 1967; S aito and Shiba ta

1983 ; M elo ne 1986). M o st o f these op in io ns h av e b een

based on e ith er sub jec tive o r s ing le o b jec tive tests o f

hand and w rist fu nc tio n .

T h is paper a im s to assess o b jective ly the func tiona l

resu lts o f C o lle s’ frac tu re s in rela tio n to the f ina l

ana tom ica l resu lts .

M ATER IA LS AND M ETHODS

T hir ty pa tien ts w ho had su sta ined a C o lle s’ frac tu re a t

leas t fo u r yea rs p rev io usly w ere rev iew ed . N one had

rad io log ica l ex tens ion of th e fractu re in to the rad io ca rpa l

jo in t. T he re w ere 29 w om en and on e m an w ith an age

ran ge o f 56 to 8 6 y ea rs (m ean 69 yea rs) . A ll had su sta ined

M . M cQu een , FRC S, L ectu rer

J . C aspers, B S , O TR , Sen ior O ccupa tio nal Th erap is t

Prince ss M argaret R ose O rth op aed ic Ho sp ital , Fairm ileh ead , Ed in -

bu rgh EH 1O 7ED , Scotland .

C orre spond ence should be sent to M iss M . M cQ ueen.

© 1988 B ritish Ed ito rial S ociety of B one and Join t S urg ery

0 301 -6 20X /88 /4 135 $ 2 .00

J Bone Join t Su rg [Br] 1988;70-B:649-5l.

the ir frac tu re by a fall on to the ou tstre tched hand and

had und ergo ne sim ila r in itia l treatm en t by m an ipu la tion

un de r reg io na l an aesth es ia an d im m ob ilisa tion in a

fo rea rm p laste r fo r fiv e to s ix w eeks. F o llow -up rang ed

from fo ur years to six years n in e m on ths (m ean fiv e yea rs

o ne m on th ). T h ir teen p atien ts had frac tu red the dom i-

nan t and 1 7 the non -dom inan t w rist.

S tanda rd an terop oste rio r an d la te ra l rad iog raph s o f

bo th w ris ts w ere taken and m easu rem en ts o f do rsa l

ang u la tion and rad ial sh if t w ere reco rd ed (V an D er

L in den and E ric son 1981) . O n the b as is o f the se

m easu rem en ts the 30 pa tien ts w ere d iv ided in to tw o

grou ps. G ro up 1 in clu ded the pa tien ts w hose fractu re s

un ited w ith 10# {176}r le ss o f d o rsal angu latio n and le ss th an

2 m m of rad ia l sh ift. T h ere w ere 1 7 p atien ts in th is

grou p , 16 w om en and on e m an , the ir ave rage age be ing

67 yea rs . G rou p 2 inc luded 1 3 pa tien ts w ith d orsa l

an gu la tio n rang ing from 1 2#{176 }o 3 4#{ 176 }nd m ore than 2 m m

of rad ia l sh ift. A ll w ere w om en and the ir m ean ag e w as

71 years.

The func tion o f b o th hands and w rists w as te sted by

on e au tho r (JC ), w ho h ad no prio r kn ow led ge of the

rad io lo g ica l m easu rem en ts . T he te sts used w ere based on

a recen t rev iew of as ses sm en t o f hand fu nc tion (D en t,

Sm ith an d C aspe rs 198 5) .

G rip streng th w as asse ssed u sing the Jam ar d yn a-

m om ete r (B ech to l 19 54) and the M u sur-G riev e sp rin g

ba lan ce (M usu r-G rieve 1984) w ith in te rchan geab le

hand le s to a llow assessm en t o f h ook , cy linde r, k ey chuck

an d p in ch grip s . G rip endu rance w as te sted on the la tter

ap pa ra tus usin g the h ook grip . M anua l dex te rity w as

assessed usin g the Jebsen test (Jebsen e t a l. 196 9)

supp lem en ted by the M ob erg te st p e rfo rm ed w ith th e

ey es op en (M oberg 1956) .

The ab ility to p er form both un ila tera l and b ila tera l

ac tiv itie s o f d aily liv in g such as lif ting w e igh ts , tu rn ing

keys, u sing sc isso rs , e tc ., w as assessed and sco red

acco rd ing to the am oun t o f d iff icu lty in pe rfo rm ing these

ac tiv itie s (S heehan , S h eld on an d M arks 19 83) . T he ran ge

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65 0 M . M CQ UEE N, J . C AS PE RS

THE JOU RN AL O F B O NE A ND JO IN T SUR GERY

of m ovem en t (f lex ion /ex ten sion , p ron atio n /su p ina tion ,

rad ia l/u ln ar dev ia tion ) w as m easu red in bo th w ris ts

usin g a g on iom e ter . T he una ffec ted w rist w as tak en as

the no rm al rang e fo r each p atien t. S en sa tion and m o to r

pow er in th e m ed ian ne rve d istr ibu tion a lso w ere te sted .

P a in w as as ses sed using an ana log ue sca le w h ich

w as th en d iv ided in to th ree equ a l pa r ts rep resen ting

m ild , m ode ra te an d seve re pa in . A n an alg es ic h is to ry

w as a lso tak en . F ina lly th e exam ine r’s a sse ssm en t o f

co sm e tic de fo rm ity w as reco rded . S ta tis tica l ana lys is w as

p erfo rm ed usin g the ch i-squ a red tes t.

R E S UL T S

T he re su lts are sum m arised in T ab le I.

T ests o f s treng th -J am ar D ynam om eter . In G roup 1 , th e

“und isp laced “ gro up , 15 o f 17 pa tien ts had grip

s treng th s w ith in th e no rm a l ran ge fo r age , sex an d

dom in an ce in bo th hand s (B ech to l 19 54 ). O ne p atien t

had redu ced grip streng th b ila tera lly w ith o n ly 10 kg in

the dom inan t una ffec ted righ t h an d and 9 kg in the non -

dom inan t a ffec ted le ft han d . T h is pa tien t had osteo -

ar th r itis o f th e p rox im a l in te rph alan geal jo in ts . O n e

pa tien t had a 17% reduc tio n in g rip s treng th in the

dom inan t a ffected hand bu t a lso h ad sig ns and sym p -

tom s of m ed ian n erve com press ion .

T ab le I. P e rcen ta ge o f n orm a l r esu lts in each group fo r each te st

Tes t

Group 1

G ood po sit ion

G roup 2

Malunion

Statist ical

signif icance

J am ar D yn am om ete r 88 31 p czO .0 0l

M usur-G rieve springbalance

94 54 p<O .O l

A ctiv ities of d aily

liv ing

94 62 p<O .O S

R ange of m ov em ent 88 31 p<O .O l

P ain 88 62 N S

C osm esis 88 8 p<O .O O l

In G rou p 2 on ly fo u r o f the 13 p atien ts w ith

m a lun ion h ad norm a l g rip stren g th in th e a ffected hand

a llow ing fo r age , sex an d dom inance . In f ive pa tien ts the

g rip streng th in th e non -d om in an t frac tu red w rist w as

m o re than 30% less than th e d om in an t no n-affec ted side .

B echto l (1954 ) has s ta ted tha t the non-dom in an t hand

m ay be as m uch as 3 0% w eake r th an the dom inan t,

a lthou gh m ost sub jec ts h av e o n ly 5 to 10% diffe ren ces.

Fou r of our p atien ts h ad frac tu red th e dom inan t w ris t

an d in all o f th ese the g rip streng th w as le ss th an tha t on

the no n-dom inan t side an d be low the low er lim it o f

no rm a l. T he w eak es t g r ip w as 5 kg in a dom inan t

affec ted w rist w h ich had a res idua l do rsal an gu la tion o f

28# {176}th is w as 48% of th e g rip in the no n-d om in an t

una ffec ted side .

T he d iffe rence b etw een th e tw o g ro ups w as sta tis ti-

c ally s ig nific an t (x 2 13 .3 , p<O .O O1) .

Tes ts o f s tr en gth - th e M usur -G rieve sp r ing ba lan ce . In

G roup 1 , 16 of th e 1 7 pa tien ts had n orm a l stren g ths o f all

d iffe ren t typ es o f g rip as com pared w ith the n orm a ls

p ub lish ed by Sw anson , G oran -H age rt and d e G ro o t

Sw anso n (1 98 4) and com pared to the op pos ite sid e ; th e

ex cep tio n w as ag ain in the pa tien t w ith m ed ian ne rv e

com pression . In G ro up 2 on ly sev en of the 13 pa tien ts

had norm a l g rip s treng ths an d en durance. O f the o the r

six pa tien ts , fou r h ad ve ry po or endu rance o f g rip , tw o

had w eakness o f all ty pes o f g rip and th ree had w eakn ess

o f o ne o r m o re types o f g rip . Th e d iffe ren ce be tw een the

tw o g ro ups w as sta tis tic ally sign if ican t (j2 9 .8 ,

p <O .O l ) .

Tes ts o f d ex ter ity . In b oth grou p s a ll th e patien ts

pe rfo rm ed th e Jebsen te st w ith in the tim e lim it. T he

m ax im um tim e tak en fo r any one te st in G rou p 1 w as 9 .5

seco nds an d 12 .4 seco nds in G ro up 2 . S im ila r resu lts

w ere seen in th e M ob erg tes t w ith the eyes o pen . O n e

pa tien t in G ro up 1 too k 10 second s lo nge r to p erfo rm th e

tes t w ith the d om in an t a ffected hand ; n ot s ur pr is in gly ,

th is w as the pa tien t w ith m ed ian ne rv e com pression .

A c tiv itie s o f d aily liv ing . In G rou p 1 , 16 of the 17 pa tien ts

had no d iff icu lty w ha tsoeve r w ith eith er un ilate ral o r

b ila tera l ac tiv itie s o f da ily liv ing . T he pa tien t w ith

m ed ian n e rve com p ressio n h ad d ifficu lty w ith all

act iv i t ies .

E igh t o f th e 1 3 pa tien ts in G rou p 2 had no d ifficu lty

w ith th e ac tiv itie s o f da ily liv ing . T hree o f th e o th ers had

d ifficu lty w ith o ne or tw o o f the tes ts , m a in ly th ose

in vo lv ing stren g th , e .g ., lif ting a w e igh t in a b ucke t. T w o

pa tien ts had consid erab le d ifficu lty w ith these te sts ; both

h ad susta in ed frac tu res in the dom inan t hand an d now

u se the no n-dom inan t han d fo r th e activ ities o f d aily

liv ing . A ga in the re w as a sta tis tica lly sign ifican t d iffe r-

en ce be tw een the tw o g rou ps (x 2 4 .8 8 , p< O.O S).

Median nerve fun c tion . O ne pa tien t in each g roup h ad

senso ry d eficit in the m ed ian ne rv e d istrib u tion . Th e

p atien t in G roup 1 a lso had clin ica lly de tec tab le m oto r

weak n es s .

R ang e of m ov em en t. In G roup 1 , 1 5 o f th e 17 pa tien ts h ad

sim ila r ranges o f m ovem en t in b o th w ris ts , w ith n o m ore

than 10# {176}iffe ren ce in an y m easu rem en t. T he pa tien t

w ith m ed ian ne rve p ro b lem s had lo st 30 #{176}fex tension b u t

o the r m ovem en ts w ere n orm a l. O ne o th er pa tien t lacked

45#{176}f sup ina tion and 20#{176 }f p rona tio n ; rad io log ical ly

the re w ere d eg en e ra tive changes in th e d ista l rad io -u lna r

jo in t. H ow ev e r, fo u r o the r pa tien ts in th is g ro up had

rad io log ica l ev id en ce o f rad io -u ln ar jo in t degene ratio n ,

a lthou gh th ey had norm a l ro ta tion .

In G rou p 2 , on ly fou r o f th e 1 3 pa tien ts h ad sim ilar

rang es o f m ovem en t in bo th w ris ts . F ive pa tien ts had

redu ctio n in p ron atio n /su p ina tion of m ore th an 20# {176} ,he

w o rst p atien t hav ing o n ly 45#{176}feach . S even pa tien ts had

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CO LLES FR A CTUR E: DO ES THE A NA TO M ICA L R ESU LT AFFECT THE FIN AL FU N CT ION ? 65 1

VOL . 70-B , N o . 4 , A UG UST 1988

a redu ctio n of be tw een 20#{176 }nd 40#{176}n the fle xio n/e xte n-

sio n a rc o f m ov em en t. F our pa tien ts had lost 15 #{176 }o 35# {1 76}f

rad ia l/u lna r d ev ia tio n .

T he d iffe ren ce be tw een th e tw o grou ps reached

sta tis tic a l s ign if ican ce (j2 12 .44 , p<O .O l ) .

Pain . Tw o ofth e pa tien ts in G roup I com p la in ed o f pa in .

In on e pa tien t th is w as g raded as m ild on th e ana lo gue

sca le and sh e req u ired no ana lgesia . T he seco nd pa tien t

w ith pa in had m ed ian n erve sym p tom s an d g raded he r

pa in as m ode ra te . F ive p atien ts o f th e 1 3 in G rou p 2 had

pa in . T hree of these graded the ir p ain as severe and

requ ired regu la r ana lgesia . O ne p atien t co nsid ered he r

pa in to b e m oderate an d on e m ild .

Th e d ifference in inc iden ce o f pa in be tw een the tw o

group s w as no t statis tica lly sign ifican t a lthou gh no

allow an ce w as m ad e fo r th e seve rity o f pa in in th e

analysis .

C o sm e tic a sse ssm en t. F if teen pa tien ts in G ro up 1 w ere

co nsid ered by the exam in er to have a no rm a l ap pearance

o f the w ris t ; th e o th er tw o pa tien ts had a m ild co sm e tic

de fo rm ity . In G roup 2 only one pa tien t had no cosm etic

de fo rm ity ; th e o the r 12 had m ild to m ode rate de fo rm ity .

Th e d iffe ren ce in cosm e tic ap pearance be tw een th e

tw o group s w as statis tic a lly s ig n if ican t (j2 19 .2 ,

p <O .OO1 ) .

D ISCUSS ION

These re su lts show clea rly th an a m a lun ited C o lle s’

frac tu re re su lts in sign if ican t func tion a l d ef ic it. T he tw o

gro ups w ere com parab le ap art from the rad io lo g ical

positio n o f the un ited frac tu re. T he sligh tly h ig he r ag e o f

the m alu n ited g roup is p robab ly because o ld er pa tien ts

have an inc rea sed like lihoo d o f m a lun io n (M cQ ueen ,

M acL aren and C ha lm ers 1 986 ).

P rev io us au th o rs have based fun ctio na l asses sm en ts

on a va riety o f m e tho ds. S om e au tho rs do n o t de fine th eir

m e thod s o f a sse ssing fun ctio n (C assebaum 1950 ; Old e r

et al. 19 65 ; B en jam in 1982) w hile o th ers confine th eir

fu nc tion al a sse ssm en t to su b jectiv e cr ite ria and rang e o f

m ovem en t (G artland and W erley 1951 ; M ason 1953 ;

G reen an d G ay 1956 ). M ore recen tly som e au th o rs have

inc lud ed grip pow er in the ir a sse ssm en t (F rykm an 1967 ;

C ooney , D obyn s and L insche id 1980 ; S a ito and Sh ib ata

1983 ; M elone 1 986 ) bu t n one o f th ese have repo rted a

com preh en sive func tion a l a sse ssm en t. T he w eakness o f

g rip fo llow ing m a lun io n is p ro bab ly d ue to p a in and to

bo ny sh orten ing w h ich p laces the flexo r tend ons at a

m echan ica l d isadv an tag e.

Th e source o f p ain is d iff icu lt to e stab lish . I t h as

p rev iou sly been sugg ested tha t its m a in so urce is th e

dista l rad io -u lnar jo in t (F rykm an 1967) or th e rad iocar -

pa l jo in t (C oon ey et a l. 1 98 0). H ow ev er , o f ou r G rou p 2

pa tien ts w ith pa in on ly on e had rad io log ica l ev id ence o f

rad io -u ln a r jo in t ch an ges. N o pa tien t h ad degen era tive

changes in the rad iocarpa l jo in t. Pa in m igh t be a ttribu t-

ab le to m ed ian neuropa th y bu t o n ly o ne pa tien t in each

grou p show ed ev idence o f m ed ian n erve sym p tom s or

sign s. S tiffne ss and d efo rm ity a re n o t su rp ris ing fo llow -

ing m alu n ion and it is ag reed tha t d o rsal an gu la tion w ill

re str ict th e f lex ion /ex tens ion a rc .

Our study dem on stra te s th a t m a lun ion o f a C olle s’

frac tu re resu lts in a w eak , d efo rm ed , stif f an d prob ab ly

pa in fu l w ris t w ith a like lihoo d ofd iff icu lty in pe rfo rm ingthe n orm a l ac tiv itie s o f da ily liv in g . It is the re fo re

es sen tial to s trive fo r a s an a tom ica lly accu ra te a re su lt as

pos sib le in o rde r to ensu re m in im a l func tion al de fic it.

N o bene fits in any form hav e been received o r w ill be receiv ed from a

com m ercial p arty re lated d irec tly o r indirec tly to the subje ct o f th is

ar t icle .

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Fracture s and Join t In ju rie s. 6th ed . V ol.2 . Ed inburgh, e tc:Churchill L iv in gs ton e, 1982:6 50 -709.

Casseb aum WH . C olle s’ frac tur e : a stu dy of end resu lts. J AMA

1 95 0; 14 3 : 96 3- 5.

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